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Dell PowerV ault MD3600f and MD3620f Storage Array s Owner’ s Manual Regulatory Model: E03J Series and E04J Series Regulatory T ype: E03J001 and E04J001 book.
Notes, Cautions, and W arnings NOTE: A NOTE indicates important information that helps you make better use of your computer . CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followe d. WA RN I N G : A W ARNING indicates a potential for property damage, personal injury , or death.
Contents 3 Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . 21 About This Document . . . . . . . . . . . . . . . . . . 21 Inside the Box of the De ll PowerV ault MD3600f Series Storage Array . . . . . . . . . . . . . . . . . . . 22 MD3600f Series Storag e Array .
4 Contents RAID Controller Module Connectors and Features . . . 34 Host Channel LED Link/Rate Indications . . . . . . . . 36 RAID Controller Modul e— Additional Features . . . . . 36 Battery Backup Unit . . . . . . . . . . . . . . . . 36 Storage Array Thermal Shutdown .
Contents 5 V irtual Disk Initiali zation . . . . . . . . . . . . . . 47 Background Initialization . . . . . . . . . . . . . . 48 Foreground Initialization . . . . . . . . . . . . . . 48 Consistency Check . . . . . . . . . . . . . . . . . 48 Media V erification .
6 Contents Monitoring MD3600f Seri es Sy stem Performance . . . 61 5 Configuration: Overview . . . . . . . . . . . . 65 User Interface . . . . . . . . . . . . . . . . . . . . . . 65 Enterprise Management Window . . . . . . . . . 66 Array Management Window .
Contents 7 Setting the Storage Array RAID Controller Module Clocks . . . . . . . . . . . . . . . . . . . 86 7 Configuration: Event Monitor . . . . . . . . . 87 Enabling or Disabling the Event Monitor . . . . . . . . 88 Windows . . . . . . . . . . . . .
8 Contents Locating a Disk Group . . . . . . . . . . . . . . 104 Creating V irtual Disks . . . . . . . . . . . . . . . 104 Changing the V irtual Disk Modification Priority . . . . . . . . . . . . . . . . . . . . . . 106 Changing the V irtual Disk Cache Settings .
Contents 9 Changing the RAID Level of a Disk Group . . . . . 130 Removing a Host-to-V irtual Disk Mapping Using Linux DMMP . . . . . . . . . . . . . . . . . 131 Restricted Mappings . . . . . . . . . . . . . . . . . . . 132 Changing the RAID Controller Module Ownership of a V irtual Disk or a Disk Group .
10 Contents Enabling and Disabling Snapshot Schedules . . . . . . . . . . . . . . . . . . . . . 148 Creating a Snapshot V irtual Disk Using the Simple Path . . . . . . . . . . . . . . . . . . . . 148 About the Simple Path . . . . . . . . . . . . . . 149 Preparing Host Servers to Create the Snapshot Using the Simple Path .
Contents 11 11 Configuration: Premium Feature—V irtual Disk Copy . . . . . . . . . 169 T ypes of Virtual Disk Copies . . . . . . . . . . . . . . . 170 Offline Copy . . . . . . . . . . . . . . . . . . . . . 170 Online Copy . . . . . . . . . . . . . .
12 Contents Re-Copying a V irtual Disk . . . . . . . . . . . . . 181 Removing Copy Pairs . . . . . . . . . . . . . . . . . . 182 12 Configuration: Premium Feature—Upgrading to High– Performance T ier . . . . . . . . . . . . . . . . . 183 13 Configuration: Premium Feature— Remote Replication .
Contents 13 Activating the Remote Replication Premium Feature and Creating Replication V irtual Disks . . . . . . . . . . . . . . . . . . . . . 192 Activating and Creating Re plication Repository Virtual Disks From the Storage Array . . . . . . . . . .
14 Contents Reversing Roles Between the Primary and Secondary V irtual Disks . . . . . . . . . . . . . 209 Promoting the Secondary V irtual Disk or Demoting the Primary V irtual Disk . . . . . . . . 210 Suspending a Remote Re plication . . . . . . . .
Contents 15 15 Management: Firmware Downloads . . . . . . . . . . . . . . . . . . . . . . 229 Downloading RAID Controller and NVSRAM Packages . . . . . . . . . . . . . . . . . . . 229 Downloading Both RAID Controller and NVSRAM Firmware . . . . . . . .
16 Contents Installing a Hard Drive Into a Hard-Drive Carrier . . . . . . . . . . . . . . . . 249 RAID Controller Module . . . . . . . . . . . . . . . . 249 Removing a RAID Controller Module Blank . . . 249 Installing a RAID Controller Module Blank . .
Contents 17 18 Management: Sy stem Interfaces . . . . . 269 Microsoft Services . . . . . . . . . . . . . . . . . . . . 269 V irtual Disk Se rvice . . . . . . . . . . . . . . . . . 269 V olume Shadow-Copy Service . . . . . . . . . . . 269 19 T roubleshooting: Y our Storage Array Software .
18 Contents Capturing the State Information . . . . . . . . . . . . 288 SMrepassist Utility . . . . . . . . . . . . . . . . . . . 289 Unidentified Devices . . . . . . . . . . . . . . . . . . 290 Recovering From an Unidentified Storage Array . . . 290 Starting or Restarting the Host Context Agent Software .
Contents 19 T roubleshooting RAID Controller Modules . . . . . . . 306 Conditions . . . . . . . . . . . . . . . . . . . . . . 306 21 Getting Help . . . . . . . . . . . . . . . . . . . . . . 309 Contacting Dell . . . . . . . . . . . . . . . . . . . . .
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Introduction 21 1 Introduction NOTE: Unless specified , MD3600f Series represents Dell PowerV ault MD3600f and Dell PowerV ault MD3620f storage array s. WA RN I N G : See the Safety , Environmental, and Regulatory Information document for important safety information before following any procedures listed in this document.
22 Introduction Inside the Box of the Dell PowerV ault MD3600f Series Storage Array Y our M D3600f Series pr oduct package includes: • Dell P owerV ault MD3600f Series storage array • Small form-f.
Introduction 23 Other Information Y ou May Need WA RN I N G : See the safety and regulatory info rmation that shipped with your sy stem. Warranty information may be in cluded within this document or as a separate document. •T h e Getting Started Guide provides an overview of setting up and cabling your st orage array .
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Planning: About Y our Storage Array 25 2 Planning: About Y our Storage Array Overview The MD3600f Series storage array is designed for high av ailability , offering r edundant access to data storage. It’s fe atures support for bo th single and dual R AID controller configurations.
26 Planning: About Y our Storage Array Hardware Features Front-Panel Feature s and Indica tors Figure 2-1. Front-Panel Features and Indicators—Dell PowerV ault MD3600f Figure 2-2. Front-Panel Features and Indicators—Dell PowerV ault MD3620f 1 2 3 5 4 6 1 2 3 4 6 5 book.
Planning: About Y our Storage Array 27 Figure 2-3. Front-Bezel Features and Indicators Item Indicator , Button, or Connector Icon Descript ion 1 Enclosu re status LED The encl osure stat us LED lights when the enclosur e power is on. Lights blue during normal operation.
28 Planning: About Y our Storage Array 3 Split mode LED This LED must be unlit as the sp lit mode function is not supporte d by the MD3600f Series Storage Arrays. 4 System identi fication button The system identification button on the front control panel can be u sed to locate a particula r enclosur e within a rack.
Planning: About Y our Storage Array 29 Back Pane l Features and Indic ators Figure 2-4. Back-Panel Features and In di cators—Dell PowerV ault MD3600f Series 1 600 W power supply/cooling fan module 2 RAID Controller Module 0 3 RAID Controller Module 1 4 600 W power supply/cooling fan module 1 2 4 3 book.
30 Planning: About Y our Storage Array Hard–Drive Indicator Patterns Figure 2-5. Hard Drive Indicators 1 hard-drive activity indicator (green) 2 hard-drive status indicator (green and amber) 1 2 book.
Planning: About Y our Storage Array 31 Power Supply and Cooling Fan Features The MD3600f Series storage array incl udes two integrat ed, hot-swappable power supply/cooling fan modules. Both modules must be in stalled to ensure proper cooli ng. The syst em requi res a t least one of the cooling f ans to function to avoid overheating.
32 Planning: About Y our Storage Array Power Indicator Codes and Features Figure 2-6. Power Indicator Codes and Features Item LED T ype Icon Description 1 DC power The LED lights gr een when the DC output voltage is within the limit. If this LED is off, it indicat es that the DC output voltage ar e not within the limit.
Planning: RAID Controller Modules 33 3 Planning: RAID Controller Modules RAID Controller Modules The R AID controller modules provi de high-performance, ad vanced virtual disk c onfigurat ion, an d fault-t olera nt disk subsystem managemen t.
34 Planning: RAID Controller Modules RAID Controller Module Connectors and Features Figure 3-1. MD3600f Series Fibr e Channel RAID Controller Module Item Component Function 1 SAS OUT port P rovides SAS connection for cabling to a downchain expansion enclosur e.
Planning: RAID Controller Modules 35 9 Management port Ethernet connector P rovides a 100/1000 Mbps Ethernet connect ion for out-of - band management of the enclosure. 10 Management port speed LED Lights gr een when Ethe rnet connection is operating at 1000 Mbps.
36 Planning: RAID Controller Modules Host Channel LED Link/Rate Indications B e l o w e a c h F C p o r t i s a p a i r o f L E D i n dicators. The status of any FC port can be determined by applying T able 3-1 to the condition of each LED pair .
Planning: RAID Controller Modules 37 Storage Array Therma l Shutdown The system automatically shuts do wn when system temperature e xceeds the safe threshold. The battery backup unit protects against data loss by providing power to offload cache to no n-volat ile memory in the event of power loss.
38 Planning: RAID Controller Modules Write– Back Cache In write-back cache, write operations r e sult in a completion signal bei ng sent to the host operating system as soon as the cache re ceives the data to be written. The tar get physical disk r eceives the data at a more appropriate ti me in order to increase controller perf ormance.
Planning: RAID Controller Modules 39 Figure 3-2. Fiber Optic Cable Conn ection The R AID expansion ports support SA S e xpansion connections. F igure 3-3 shows a SAS cable and an SFF-8088 connector . Figure 3-3. SAS Cable 1 SFP transceiver 2 Fiber optic cable 1 SFF-8088 connector 2 S AS cable 1 2 1 2 book.
40 Planning: RAID Controller Modules Interoperability of 2 G bps, 4 Gbps, and 8 Gbps Devices The FC standa rd specifies a procedure for speedy auto -detection. If a 4 Gbps port on a switch or device is connected to a 2 Gbps port, it must negotiate down for the link to run at 2 Gbps.
Planning: MD3600f Se ries Storage Array T erms and Concepts 41 4 Planning: MD3600f Series Storage Array T erms and Concepts This chapter e xplains terms and co ncepts used for configuration and operation of MD3 600f Se ries storage arrays.
42 Planning: MD3600f Series St orage Array T erms and Concepts Phy sical Disks Only Dell supported 6.0 Gbps SAS physi cal disks ar e supported in t he storage array . If the storage array detects unsuppo rted physical disks, it marks the disk as unsupported and the physical disk be comes unavailable for all op erations.
Planning: MD3600f Se ries Storage Array T erms and Concepts 43 If a disk drive rebuild fails because of a source drive failur e or because the drive is too small, the MDSM r eports a failur e of the p.
44 Planning: MD3600f Series St orage Array T erms and Concepts Disk groups are always created in the un configured capacity of a storage array . Unconfigured capacity is the availa ble physical disk space not already assigned in the stor age array . Virtual disks ar e cr eated within the fr ee ca pacity of a disk group.
Planning: MD3600f Se ries Storage Array T erms and Concepts 45 RAID Levels R AID levels determine the way in which data is written to physical disks. Differ ent R AID levels provide different levels of accessibility , redundancy , and capacity .
46 Planning: MD3600f Series St orage Array T erms and Concepts RAID 0 R AID 0 uses disk striping to provide hi gh data throughput, especially for lar g e files in an environment that r equir es no data r edundancy . R AID 0 br eaks the d at a d ow n i n to s e gm e n t s a n d w r it e s ea ch segment to a sepa rate physical disk.
Planning: MD3600f Se ries Storage Array T erms and Concepts 47 RAID 10 R AID 10 , a comb ination of R AID 1 and RAID 0, uses disk striping across mirrored disks. It provides high da ta throughp ut and complete data r edundancy . Utilizing an even number of physical disks (four or more) creates a R AID level 10 disk group and/or virtu al disk.
48 Planning: MD3600f Series St orage Array T erms and Concepts Background Initialization The storage array ex ecutes a background in itialization when the virtual disk is created to establish pa rity , while allowing full host server access to the virtual disks.
Planning: MD3600f Se ries Storage Array T erms and Concepts 49 Cycle T ime The media verification ope ration runs only on selecte d disk groups, independent of other disk groups.
50 Planning: MD3600f Series St orage Array T erms and Concepts Disk Group Operations RAID Level Migration Y ou can migrate from one R AID level to another depending on your requir ements. F or example, fault-tolera nt characteristics can be added to a stripe set (R AID 0) by converting it to a R AID 5 set.
Planning: MD3600f Se ries Storage Array T erms and Concepts 51 V irtual Disk Capa city Expansion When you configure a virtual disk, you se lect a capacity based on the amount o f d a t a y o u e x p e c t t o s t o re .
52 Planning: MD3600f Series St orage Array T erms and Concepts If a r edundant R AID controller module fails with an existing disk group process, the process on the failed controller is transferr ed to the peer controller . A transferr ed process is placed in a suspende d state if ther e is an active disk group process on the peer controller .
Planning: MD3600f Se ries Storage Array T erms and Concepts 53 V irtual Disk Migration and Disk Roaming V irtual disk mi gration is moving a virtual dis k or a hot spar e from on e array to another by detaching the physical disks and r e -attaching them to the new array .
54 Planning: MD3600f Series St orage Array T erms and Concepts Use either of the following methods to move disk groups and virtual disks: • Hot virtual disk migration—Disk migrati on with the destina tion storage array power turned on. • Cold virtual disk migration—Disk migration with the destination storage array power turned off.
Planning: MD3600f Se ries Storage Array T erms and Concepts 55 • Enabling premium features before migration—Befor e migrating disk groups and virtual disks, enable the requir ed premium featur es on the destination storage array .
56 Planning: MD3600f Series St orage Array T erms and Concepts Y ou can manually configure a host serv er -to-virtual disk mapping. When you configure host server -to-virtual disk mapping, consider these guidelines: • Y ou can define one host server -to-virt ual disk mapping for each virtual disk in the storage array .
Planning: MD3600f Se ries Storage Array T erms and Concepts 57 Snapshot Reposito ry Virtual Disk When you cr eate a snapshot virtual disk , it automatically cr eates a snapshot repository virtual disk. A s napshot reposi tory is a virtual disk cr eated in the storage array as a r esource for a snapsh ot virtual disk.
58 Planning: MD3600f Series St orage Array T erms and Concepts Source Virtual Disk When you create a virtual disk copy , a co py pair consisting of a source virtual disk and a tar get virtual disk is cr ea ted on the same storage array .
Planning: MD3600f Se ries Storage Array T erms and Concepts 59 Using Snapshot and Disk Copy T ogether Y ou can use the Snapshot V irtual Disk and Vi r t u a l D i s k C o p y premium featur es together to back up data on th e same storag e array , or to r estor e the data on the snapshot virtual disk to its original source virtual disk.
60 Planning: MD3600f Series St orage Array T erms and Concepts Ownership of a virtual disk is moved from the pr eferred controller to t he secondary controller (also called the al ternate controller) .
Planning: MD3600f Se ries Storage Array T erms and Concepts 61 • Round robin with subset—The round robin with subset I/O load balance policy routes I/O requests, in rotation, to each available data path to the R AID controller module that owns the virtual disks.
62 Planning: MD3600f Series St orage Array T erms and Concepts • Using the P erformance Monitor to r etrieve performance data can affect the normal storage array performance depending on the polling interval that you set.
Planning: MD3600f Se ries Storage Array T erms and Concepts 63 9 Select an appropriate directory . 10 T ype a file name in the Fi l e n a m e text box. NOTE: The .perf extension is the default. 11 Select a file type f rom the Fi l e s o f t y p e list.
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Configuration: Overview 65 5 Configuration: Overview Dell P owerV ault Modular Disk Stor age Manager (MDSM) online help contains information on the how to use the MDSM application to perform the configuration and mana gement tasks described in this document.
66 Configuration: Overview Enterprise M anagement Windo w The EMW provides high-level manage ment of storage arrays. When you start MDSM, the EMW is displayed.
Configuration: Overview 67 Inheriting the Sy stem Settings Use the Inherit Syst em Settings option to im port the operating system theme settings into the MDSM . Importing system them e settings affects features lik e font type, font size, color , and contrast in the MDSM.
68 Configuration: Overview • Physical tab—Y ou can view the organization of the storage array by R AID controller modules, phys ical disks, and other hardwar e components. • Mappings tab—Y ou can define the hosts, hos t groups, and host ports.
Configuration: About Y our Storage Array 69 6 Configuration: About Y our Storage Array Y ou can manage a storage array in two ways: • Out-of -band management • In-band management Out-of-Band Management Using the out-of -band management meth od, data is separated from c ommands and events.
70 Configuration: About Y our Storage Array When you add storage arrays by using this management me thod, you need to specify only the host name or IP address of the host. After you add the specific host name or IP addr ess, the host -agent softwar e automatically detects any storage arrays that are connected to that host.
Configuration: About Y our Storage Array 71 Automatic Discovery of Storage Array s The A uto matic Discovery process sends out a broa dcast message across the local subnetwork (subnet) an d adds any storage array that responds to the message. The Automatic Discovery process finds both in-band and out-of - band storage arrays.
72 Configuration: About Y our Storage Array • In the EMW , select the Setup tab, and select Name/Rename Storage Arrays . • In the AMW , select the Setup tab, and select Ren a m e S t o ra g e A rr a y . • In the EMW , right-click the icon corresponding to the array and select Re n a m e .
Configuration: About Y our Storage Array 73 • Manually de fine hosts—Define the hosts and the host p ort identifiers that are connected to the storage array . Use this option only if th e host is not automatically recognized and shown in the Mappings tab.
74 Configuration: About Y our Storage Array T o rename a selected storage array: 1 P erform one of these actions: • In the AMW Setup tab, select Ren a m e S t o ra g e A r ra y . •I n t h e E M W Devices tab T r ee view , select Edit Ren a m e.
Configuration: About Y our Storage Array 75 Setting a Password Y ou can configure each storage array with a passwor d to protect it from unauthorized access. MDSM prompts for the passwor d when an attempt is made to change the storage array configur ation, such as, when a virtual disk i s cr eated or deleted.
76 Configuration: About Y our Storage Array Password Guidelines F ollow these guidelines when you cr eate a password: • Use secure passwor ds for your storage array . A password must be easy for you to remember but difficult for ot hers to determine.
Configuration: About Y our Storage Array 77 Adding/Editi ng a Comment to an E xisting Storage Array A descriptive comment, with an applic a ble storage array name, is a he lpful identification tool. Y o u can add or edit a comment for a storage array in the EMW only .
78 Configuration: About Y our Storage Array Enabling Premium Features Y ou can enable pr emium features on the storage array . T o enable the premium features, you must obtain a feature k ey file specific to the pr emium feature that you want to enable from your storage supplier .
Configuration: About Y our Storage Array 79 Changing the Cache Settings on the Storage Array 1 In the AMW , select Storage Array Change Cache Settings . The Change Cache Settings window is dis played. 2 Select or enter the percentage of unwr itten data in the cache to trigger a cache fl ush in Start flushing .
80 Configuration: About Y our Storage Array Changing the Enclo sure Order in the Phy sical Pane Y ou can change the order of the R AID con troller mo dules and the expansion enclosur es in the Physical pane to match the har dwa re configuration in your storage array .
Configuration: About Y our Storage Array 81 T o confi gure alert noti ficati ons for a sing le storag e array: 1 In the EMW , select the Devices tab. 2 Select the relevant storage array , then select Edit Configure Alerts . The Configure Alerts dialog is disp layed.
82 Configuration: About Y our Storage Array The SMTP mail server i s the name of the mail server that forwards the alert e-mails to the configured e-mail addresses.
Configuration: About Y our Storage Array 83 9 F o r the selected e-mail address, in Fr e q u e n c y , select: • Every event —Sends an alert e-mail whenev er an event occurs. This is the default option. • Every x hours —Sends an alert e-mail after the specified time interval if an event occurr ed duri ng that time interval.
84 Configuration: About Y our Storage Array These results occur , depending on your selection: • If you select all s torage arrays, the Configure Alerts dialog is displayed. • If you select an individual storage array , the Select Storage Ar ray dialog is dis played.
Configuration: About Y our Storage Array 85 F o llow these guideli ne for SNMP alerts: • Any SNMP addresses that you had previously configured are displayed in the Configured SNMP addr esses area.
86 Configuration: About Y our Storage Array T o change the battery settings perform these steps: 1 In the AMW , select Storage Array Change Battery Settings . The Battery Settings dialog is disp layed. 2 In Battery location , select a battery .
Configuration: Event Monitor 87 7 Configuration: Event Monitor An event monitor is provided with De ll P owerV ault Modular Disk Stor age Manager (MDSM). The event monitor runs continuous ly in the background and monitors activity on the managed storage arrays.
88 Configuration: Event Monitor Enabling or Disabli ng the Event Monitor Y ou can enable or disable the event monitor at any time. Disable the event monitor if you do not want the system to send alert notifications.
Configuration: About Y our Host 89 8 Configuration: About Y our Host Configuring Host Access Dell P owerV ault Modular Disk Stor age Manage r (MDSM) software is comprised of multiple modules.
90 Configuration: About Y our Host The host topology is re configurable. Y ou can perf orm the following tasks: • Create a host and assign an alias or user label. • Add or associate a new host p ort identifier to a particul ar host. • Change the h ost port identifier alias or use r label.
Configuration: About Y our Host 91 T o define a host: 1 In the AMW , select the Mappings tab and select the appropriate storage arra y . 2 P erform one of the actions: • Select Mappings Define Host . • Select the Setup tab, and click Manually Define Hosts .
92 Configuration: About Y our Host • No —this host does NOT share access to the same virtual disks with other hosts. 9 Click Next . If you s elect Ye s , the Specify Host Group window is dis played. If you select No , see step 11 10 Enter the name of the host group or se lect an existing host group and click Next .
Configuration: About Y our Host 93 Creating a Host Group 1 In the AMW , select the Mappings tab. 2 In the To p o l o g y pane, select the storage array or the Default Group .
94 Configuration: About Y our Host Moving a Host to a Different Host Group 1 In the AMW , select the Mappings tab, select the host node in the To p o l o g y pane. 2 P erform one of these actions: • Select Mappings Move . • Right-click the host node, and s elect Move from the pop-up menu .
Configuration: About Y our Host 95 Host T o pology Host topology is the o r gani zation o f hosts, host gr oups, and host interfaces configured for a storage array . Y ou can view the host topology in the Mappings tab of the AMW . F or more info rmation, see "Using the Mappings T ab" on page 90.
96 Configuration: About Y our Host Windows T o start or stop the host context agent: 1 Click Start Settings Contro l P anel Administrative T ools Services . or Click Start Administrative T ools Ser vices . 2 F rom the list of services, select Modular Disk Storage Manager A gent .
Configuration: About Y our Host 97 F or more information on Linux DM please see "Confi guration: Device Mapper Multipath for Linux" on page 21 9.
98 Configuration: About Y our Host T o manage a host port identifier: 1 P erform one of these actions: • Right-click the host in the To p o l o g y pane, and se lect Manage Host P ort Identifiers in the pop-up menu. • F rom the menu bar , select Mappings Manage Host P ort Identifiers .
Configuration: About Y our Host 99 8 Select the host port iden tifier that you would l ike to manage from the list of host port identifiers in the Host port identifier information area.
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Configuration: Disk Groups and Virtua l Disks 101 9 Configuration: Disk Groups and V irtual Disks Creating Disk Groups and V irtual Disks Disk groups ar e created in the unconfi g ured capacity of a storage array , and virtual disks ar e created in the fr ee capacity of a disk group.
102 Configuration: Disk Groups and V irtual Disks A disk group must be organized accor ding to its related tasks and subtasks. F or example, if you cr eate a disk gr oup for the Accounting Department,.
Configuration: Disk Gr oups and V irtual Disks 103 3 T ype the name of the disk group (up to 30 characters) in Disk group name . 4 Select the appropriate Physical Disk selection choices , you can select: • A utomatic , see step 6 • Manual , see step 9 5 Click Next .
104 Configuration: Disk Groups and V irtual Disks Locating a Disk Group Y ou can physically locate and identify al l of the physical disks that comprise a selected disk group. An LED blinks on each physical disk in the disk gro up. T o locate a disk group: 1 In the AMW , select the Lo gi c al tab.
Configuration: Disk Gr oups and V irtual Disks 105 NOTE: Ensure that you create disk gr oups before creating virtual disks. T o cr eate virtual disks: 1 Choose one of these methods to start the Create.
106 Configuration: Disk Groups and V irtual Disks 5 In Advanced virtual disk parameters , you can select: • Use recommended settings . • Customize settings . 6 Click Next . 7 In the Customize Advanced V irtual Disk P arameters window , sel ect the approp riate V irtual Disk I/O characteristics type.
Configuration: Disk Gr oups and V irtual Disks 107 T o change the virtual disk modification priority : 1 In the AMW , select the Log ic al tab. 2 Select a virtual disk. 3 In the toolbar , sele ct Vi r t u a l D i s k Change Modification P riority .
108 Configuration: Disk Groups and V irtual Disks To c h a n g e t h e v i r t u a l disk cache settings: 1 In the AMW , select the Lo gi c al tab and select a virtual disk 2 In the toolbar , select Vi r t u a l D i s k Change Cache Settings .
Configuration: Disk Gr oups and V irtual Disks 109 5 Click OK . A message prompts you to confirm the change in the virtual disk modification priority . 6 Click Ye s . 7 Click OK . Changing the Segment Size of a Virtual Disk Y ou can change the segmen t size on a selected virtual disk.
110 Configuration: Disk Groups and V irtual Disks T o change the segment size of a virtual disk: 1 In the AMW , select the Lo gi c al tab and select a virtual disk. 2 Select Vi r t u a l D i s k Change Segment Size . 3 Select the requir ed segment size.
Configuration: Disk Gr oups and V irtual Disks 111 T o change the I/O type: 1 Select from these virtual disk I/O ch aracteristic types, based on your application needs: • F ile system (typical) • .
112 Configuration: Disk Groups and V irtual Disks Phy sical Disk Security With Self Encrypting Disk Self encrypting disk (SED ) technology pr events unauthorized access to the data on a physical disk that is physica ll y removed from the storage array .
Configuration: Disk Gr oups and V irtual Disks 113 T able 9-1 shows how to interpret the security status of a disk group. The Physical Disk Security menu is displayed in the Storage Array menu.
114 Configuration: Disk Groups and V irtual Disks The Secure Physical Disks option is inactive with a check mark on the left if the disk group i s already security enabled. The Create a secure disk group option is displa yed in the Create Disk Group Wizard - Disk Group Name and Physical Disk Selection dialog.
Configuration: Disk Gr oups and V irtual Disks 115 T o cr eate a security k ey : 1 In the AMW toolbar , select Storage Array Physical D isk Securi ty Create Security K ey . The Create Security K ey window is displayed. 2 In Security key identifier , enter a string that becomes part of the secur e k ey identifier .
116 Configuration: Disk Groups and V irtual Disks After you have cr eated a security k ey , yo u can create secur e disk groups from security capable physical disks. Cr ea ting a secure disk group mak es the physical disks in the disk group secu rity-enabled.
Configuration: Disk Gr oups and V irtual Disks 117 3 In Secure key identifier , enter a string that becomes part o f the secure k ey identifier . Y ou may leave the text box blank, or enter up to 189 alpha numeric characters without white space, punc tuation, or symbols.
118 Configuration: Disk Groups and V irtual Disks T o save the security k ey for the storage array : 1 In the AMW toolbar , select Storage Array Physical Disk S ecurity Save Security K ey Fi l e . The Save Security K ey F ile - Enter P ass Phrase window is displayed.
Configuration: Disk Gr oups and V irtual Disks 119 the appropriate security key must also be imported to the new storage array . Otherwise, the data on the security enab led physical disks that were moved is inaccessible.
120 Configuration: Disk Groups and V irtual Disks Configuring Hot Spare Phy sical Disks Guidelines to configure host spar e physical disks: • Y ou can use only unas signed physical dis ks with Optimal status as hot spare physical disks. • Y ou can unassign only hot spar e physical disk s with Optimal, or Standby status.
Configuration: Disk Gr oups and V irtual Disks 121 • Right-click the physic al disk and select Hot Spare Coverage from the pop-up menu. The Hot Spare Physical Disk Options window is dis played.
122 Configuration: Disk Groups and V irtual Disks Hot Spares and Rebuild A valuable strategy to protect data is to assign available physical disks in the storage arra y as hot spar es. A hot spar e a dds another level of fault tolerance to the storage array .
Configuration: Disk Gr oups and V irtual Disks 123 Hot Spare Drive Protection Y ou can use a hot spar e physical disk fo r additional data protection from physical disk failures that occur in a R AID level 1, or R AID level 5 di sk group.
124 Configuration: Disk Groups and V irtual Disks CAUTION: Enclosure loss protection is not guaranteed if a phy sical disk has already failed in the disk group. In th is situation, losing access to an expansion enclosure and consequently another phy sical disk in the disk group causes a double phy sical disk failure and loss of data.
Configuration: Disk Gr oups and V irtual Disks 125 Host-to-V irtual Disk Mapping After you creat e virtual di sks, you must map them to the host(s) connected to the array . Guidelines to configure ho st-to-virtual disk mapping: • Each virtual disk in the storage array can be mapped to only one host or host group.
126 Configuration: Disk Groups and V irtual Disks • Not every operating system has the same number of L UNs available. • Y ou can define the mappings on the Mappings tab in the AMW .
Configuration: Disk Gr oups and V irtual Disks 127 5 In Lo gi c a l u n it n um be r , select a L UN. The supported L UNs ar e 0 through 255. 6 Select the virtual disk to be mapped in the Vi r t u a l D i s k area.
128 Configuration: Disk Groups and V irtual Disks 4 In Lo gi ca l u nit nu m be r , select the appropriate L UN. The drop down list shows only the currently available L UNs that are associated with the selected virtual disk.
Configuration: Disk Gr oups and V irtual Disks 129 ownership of the tar get virtu al d i s k i s re s t o r e d t o i t s p re f e r re d RA I D c o n t r o l l e r module. If ownership of th e source virtual disk is changed during the virtual disk c opy , ownership o f the tar get virtual disk is al so c hanged.
130 Configuration: Disk Groups and V irtual Disks ownership of the targ et virt ual disk is restor ed to its preferr ed RAID controller module. If ownership of th e source virtual disk is changed during the virtual disk copy , ownership of the target virtua l disk is also chan ged.
Configuration: Disk Gr oups and V irtual Disks 131 1 In the AMW , select the Log ic al tab and select a disk group. 2 Select Disk Group Change RA I D L e v e l . 3 Select the appropriate RAID level and click Ye s to confirm the selection.
132 Configuration: Disk Groups and V irtual Disks # echo 1 > /sys/block/sd_x/device/delete wher e sd_x is the SD node (di sk device ) returned by the multipath command.
Configuration: Disk Gr oups and V irtual Disks 133 • Y ou cannot change a host adapter port to a restricted host type if th er e are alr eady mappings in the storag e partition that would ex ceed the limit imposed by the restricted host type.
134 Configuration: Disk Groups and V irtual Disks Changing the RAI D Controller Modul e Ownership of a Virtual Disk or a Disk Group Y ou can change the R AID controller modu le ownership of a virtual disk or a disk g roup. Y ou can change the R AID controller modu le ownership of a standar d virtual disk or a snapshot repository virtual disk.
Configuration: Disk Gr oups and V irtual Disks 135 CAUTION: Possible loss of data access—If y ou do not use a multi-path driver , shut down any host applicati ons that are currently us ing the virtual disk. This action prevents application e rrors when the I/O path changes.
136 Configuration: Disk Groups and V irtual Disks Changing the RAID Level of a Disk Group Use the Change RA I D L e v e l option to change the R AID level o n a selected disk group. Using this option changes the R AID levels of every virtual disk that comprises the disk group.
Configuration: Disk Gr oups and V irtual Disks 137 Storage Partitioning A storage partition is a logi cal entit y consisting of one or mor e virtual disks that can be accessed by a single host or shar ed among ho sts that are part of a host group.
138 Configuration: Disk Groups and V irtual Disks Storage partitioning is unavailable when: • No valid host groups or hosts e xist in the To p o l o g y pane on the Mappings tab. • No host ports ar e defin ed for the host be ing included in the storage partition.
Configuration: Disk Gr oups and V irtual Disks 139 NOTE: If the RAID level of the disk group is RAID level 5, or RAID level 6, and the expansion enclosure has enclosure loss protection, Display only phy sical disks that ensures enclosure loss protection is displayed and is selected by default.
140 Configuration: Disk Groups and V irtual Disks Using Unconfigured Capacity Y ou can increase the capacity of a standar d virtual disk or a snapshot repository virtual disk usin g the unconfigured capacity when no free capacity exists on a disk group.
Configuration: Disk Gr oups and V irtual Disks 141 Exporting a Disk Grou p On the source storage array: 1 Save the storage array configuration. 2 Stop all I/O and u nmount or disconnect the fi le systems on the virtu al disks in the disk group. 3 Back up the data on the virtual disks in the disk group.
142 Configuration: Disk Groups and V irtual Disks Importing a Disk Group NOTE: Y ou must insert all of the phy sical disk s that are part of the disk group into the enclosure before the disk group can be imported. On the tar get storage array : 1 Insert the ex ported physical disks in to the available physical disk slots.
Configuration: Disk Gr oups and V irtual Disks 143 Storage Array Media Scan The media scan is a backgrou nd operation that e xamines virtual disks to verify that data is accessible. The pr ocess finds media errors before normal r ead and write activity is disrupted and reports errors to the event log .
144 Configuration: Disk Groups and V irtual Disks The media scan duration specifies the number of days for which the media scan runs on the selected virtual disks. 5 T o disable media scans on an individu al virtual disk, s elect the virtual disk in the Select virtual disks to scan area, and deselect Scan selected virtual disks .
Configuration: Premium Featur e—Sna pshot Virtual Disks 145 10 Configuration: Premium Feature— Snapshot V irtual Disks NOTE: If you order ed this feature, you recei ved a Premium Feature Activation card shipped in the same box as your Dell PowerV ault MD storage array .
146 Configuration: Premium F eature—Snapshot V irtual Disks repository uses less disk space than a full physical copy , because the only data blocks that ar e stor ed in the snapshot r epository vi rtual disk are those th at have changed sinc e the time of the snapshot.
Configuration: Premium Featur e—Sna pshot Virtual Disks 147 F riday , at a time between the end of th e work day and 11PM. Do not select an end date. Apply the same sc hedule to the second vi rtual disk, then map the two snapshot virtua l disks to your backup host server and perform your r egular backup procedures.
148 Configuration: Premium F eature—Snapshot V irtual Disks Enabling and D isabling Snapshot Sche dules A scheduled snapshot operation can be temporarily suspended by disabling the schedule. When a schedule is disa bled, the schedule time r continue s to run but any scheduled snapshot operation do not occur .
Configuration: Premium Featur e—Sna pshot Virtual Disks 149 About the Simple Path Using the sim ple path, you can specify : • Snapshot Virtual Disk Name—A user -specified name that hel ps you associate the snapshot virtual d isk to its corr esponding snap shot re pository virtual disk and source virtual disk.
150 Configuration: Premium F eature—Snapshot V irtual Disks Preparing Host Servers to Create the Snapshot Using the Simple Path NOTE: Before using the Snapshot Vi rtual Disks Premium Feature in a Microsoft Windows clustered configuration, you must first map the snapshot virtual disk to the cluster node that owns the source virtual disk.
Configuration: Premium Featur e—Sna pshot Virtual Disks 151 NOTE: Removing the drive letter of the as sociated virtual di sk(s) in Windows or unmounting the virtual drive in Linux helps to guarantee a stable copy of the drive for the Snapshot. Befor e creating a snapshot virtual disk, th e host server has to be in the proper state.
152 Configuration: Premium F eature—Snapshot V irtual Disks After creating one or mor e snapshot virtual disks, mount the source virtual disk, and restart the host application using th at source virtual di sk.
Configuration: Premium Featur e—Sna pshot Virtual Disks 153 • Capacity Allocation—This parameter allows you to choose wher e to cr eate the snapshot r epository virtual disk. Y o u can alloca te capacity by us ing one of the following methods: – Use fr ee capacity on the same disk group wher e the source virtual disk resides.
154 Configuration: Premium F eature—Snapshot V irtual Disks Preparing Host Servers to Create the Snap shot Using the Advanced Path NOTE: Before using the Snapshot Vi rtual Disks Premium Feature in a Microsoft Windows clustered configuration, you must first map the snapshot virtual disk to the cluster node that owns the source virtual disk.
Configuration: Premium Featur e—Sna pshot Virtual Disks 155 • Y ou must satisfy the requir e ments of your host operating system for creating snapshot virtual disks. F ailure to meet the r equir ements of your host operating system results in an inaccurate snapshot of the source virtual disk or the target virtual disk in a virtual disk copy .
156 Configuration: Premium F eature—Snapshot V irtual Disks If you want to use a snapshot regu larly , such as for backups, use the Disa ble Snaps hot and Re -c r e at e S n a ps h o t options to r euse the snapshot.
Configuration: Premium Featur e—Sna pshot Virtual Disks 157 The Specify V irtual Disk P arameters window is d isplayed. 9 In the Snapshot virtual disk parameters area, select the relevant mapping op.
158 Configuration: Premium F eature—Snapshot V irtual Disks where seque nce-number is the chronological number of the snapshot rel ative to the source virtual disk.
Configuration: Premium Featur e—Sna pshot Virtual Disks 159 Snapshot Repository Capacity If you r eceive a warning that the ca paci ty for the snapshot r epository virtual disk is approaching its th.
160 Configuration: Premium F eature—Snapshot V irtual Disks free capacity is available, the maximum free space is displayed in the Increase capacity by field. If free capacity does not e xist on th e disk group, the fr ee space that is displayed in the Incr ease capacity by spinner box is 0.
Configuration: Premium Featur e—Sna pshot Virtual Disks 161 NOTE: The phy sical disks that is displaye d has a capacity that is either the same size or larger than the capacity of the phy sical disks already being used by the disk group. 9 Select either a single physical disk to add or two physical disks to add.
162 Configuration: Premium F eature—Snapshot V irtual Disks Disabling a Snapshot V irtual Disk Disable a snapshot virtual disk if: • Y ou do not need the snapshot now . • Y ou intend to r e-create the snapshot at a later time and want to retain the associated snapshot repositor y virtual disk so th at you do not need to create it again.
Configuration: Premium Featur e—Sna pshot Virtual Disks 163 Preparing Ho st Servers to Re-create a S napshot V irtual Disk NOTE: Before you create a new snapshot of a source virtual disk, stop any d.
164 Configuration: Premium F eature—Snapshot V irtual Disks Re-creating Snapshot V irtual Disks Y ou can re-cr eate a snapsho t virtual disk that you have previously disabled. CAUTION: Possible loss of data redundancy – If the snapshot virtual disk is in Optimal status, it is first disabl ed prior to being re-created.
Configuration: Premium Featur e—Sna pshot Virtual Disks 165 The associated snap shot reposi tory virtual disk must have suff icient capacity to proces s the rollba ck operati on and th e write operations from the host.
166 Configuration: Premium F eature—Snapshot V irtual Disks If an error occurs during the roll back , the operation is paused and the base virtual disk and snapshot virtual disk displays Needs Attention icons. The R AID controller module al so logs the event to the Major Event Log (MEL).
Configuration: Premium Featur e—Sna pshot Virtual Disks 167 2 Choose one: • Select the snapshot virtual disk, and select Vi r t u a l D i s k Snapshot R ollback . • Right-click the snapshot virtual disk and select Rol l b ac k . The Confirm R ollback Snapshot V irtual Disk dialog is displa yed.
168 Configuration: Premium F eature—Snapshot V irtual Disks Canceling a Snapsh ot Rollback WA RN I N G : Risk of data loss: If you cancel a snapshot rollback in progress, the base virtual disk may remain in an unusabl e state and the snapshot virtual disk is displayed as failed in the MD stor age management software.
Configuration: Premium Feature—V irtual Disk Copy 169 11 Configuration: Premium Feature— V irtual Disk Copy NOTE: A virtual disk cop y overwrit es data on the target virtual disk. Before starting a virtual disk copy , ensure that you no longer need the data or back up the data on the target virtual disk.
170 Configuration: Premium F eature—V irtual Disk Copy Reasons to use virtual disk copy include: • Copying data for improved access—As your storage requir ements for a virtual disk change, you can use a virtual disk copy to copy data to a virtual disk in a d isk group tha t uses drives with larger capacity within the same storage array .
Configuration: Premium Feature—V irtual Disk Copy 171 formatted with a journaling file system, any attempt to issue a read r e quest to the source virtual disk may be rejected by the storage array R A ID controller modules and result in an erro r message.
172 Configuration: Premium F eature—V irtual Disk Copy Creating a V irtual Disk Copy for an MSCS Shared Disk T o cr eate a virtual disk copy for a Mi cros oft Cluster Server (MSCS) shar ed disk, create a snapshot of the virtual disk, and then use the snapshot virtual disk as the source for the virtual disk copy .
Configuration: Premium Feature—V irtual Disk Copy 173 • T o enable Read-Only pe rmission, select Change T arget V irtual Disk Pe r m i s s i o n s Enable R ead-Only . NOTE: Write requests to the target virt ual disk are rejected when the Read- Only permission is enabled on the target virtual disk.
174 Configuration: Premium F eature—V irtual Disk Copy NOTE: The following host preparation sectio ns also apply when using the virtual disk copy feature through the CLI interface.
Configuration: Premium Feature—V irtual Disk Copy 175 If 16 virtual disk copies with the status of In P rogress e xist, any subsequent virtual disk copy has the status Pe n d i n g , which stays until one of the 16 virtual disk copies complete.
176 Configuration: Premium F eature—V irtual Disk Copy When the virtual disk copy fai ls, a crit ical ev ent is logged in the Event Log , and a Needs Attention icon is di splayed in the A M W . While a virtual disk copy has this status, the host has r ead-only access to the source virtual disk.
Configuration: Premium Feature—V irtual Disk Copy 177 Copying the V irtual Disk Y ou can cr eate a virtual disk copy by using the Create Copy Wizard . CAUTION: Possible loss of data access – A vi rtual disk copy overwrites data on the target virtual disk.
178 Configuration: Premium F eature—V irtual Disk Copy 8 In the Select copy priority ar ea , select the relevant copy priority and cli ck Next . The Confirmation window displays the summary of your selections.
Configuration: Premium Feature—V irtual Disk Copy 179 The Copy Manager window is displayed. 2 In the table, select one or more copy pairs. 3 Select Change Copy P riority . The Change C opy P riority window is dis played. 4 In the Copy priority area, select the appropriate copy priority , depending on your system performance needs.
180 Configuration: Premium F eature—V irtual Disk Copy The Re co p y option overwrites e xisting data on the tar get virtual disk and make s the target virtual disk r ead-only to hosts. This option fails all snapsho t virtual disks associated with the target virtual disk, if any e xist.
Configuration: Premium Feature—V irtual Disk Copy 181 Re-Copying a V irtual Disk Y ou can use the Copy Ma nager to create a new virtual disk copy for a selected source virtual disk and a tar get virtual disk. Use th is option when you have stopped a virtual disk copy and want to start it again or when a virtual disk copy has failed or completed.
182 Configuration: Premium F eature—V irtual Disk Copy Removing Copy Pairs Y ou ca n r emove one or more virtual disk copies by using the Copy Manager . Any virtual disk copy-related informatio n for the source virtual disk and the tar get virt ual disk is remov ed from the V irtual Disk P roperties dialog an d the Storage Array P rofile dialogs.
Configuration: Premium Fe atur e—Upgrading to High–Performance T ier 183 12 Configuration: Premium Feature— Upgrading to High–Performance Ti e r The High P erformance Tier pr emium feature on .
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Configuration: Premium Feature— Remote Replication 185 13 Configuration: Premium Feature— Remote Replication The Remote Replication pr emium feature ena bles real-time r eplication of data between two storage arrays in separate lo cations. Using r emote replication, up to 16 r eplicated virtual disk pairs can be created on a storage array .
186 Configuration: Premium Feature— Remote Replication Activating Remote Replication NOTE: If you ordered the Remote Replication feature, you received a Premium Feature Activation card in the Dell PowerV ault MD storage array shipping box. Follow the directions on the card to install and enable this feature.
Configuration: Premium Feature— Remote Replication 187 Other information about re plication repository virtual disks include: • Specifying that replication repository virtual disks be cr eated f r.
188 Configuration: Premium Feature— Remote Replication Befor e creating a virtual disk pair , verify the following: 1 The Remote Replication premium fe ature is installed, en abled and activated on the primary and secondary storage arrays.
Configuration: Premium Feature— Remote Replication 189 Snapshot V irtual Disk W ith Remote Replication A snapshot virtual disk is a point-in- time image of a virtual disk. In a remote r eplication, do not mo unt a snapshot virtual disk on the same server as the primary virtual disk.
190 Configuration: Premium Feature— Remote Replication Required Switch Zoning Configuratio ns NOTE: A limited set of Fibre Channel switches are supported by the storage array .
Configuration: Premium Feature— Remote Replication 191 Journaling File Sy stems and Remote Replication When using a journaling file system, y ou cannot gain r ead-only access to a r emote virtual disk. A journaling file system does n ot let you mo unt the r emote virtual disk in W indows NTFS.
192 Configuration: Premium Feature— Remote Replication Activating the Remote Replicatio n Premium Fea ture and Creating Replicati on Virtual Disks T o activate the Remote Replication fe ature and cr.
Configuration: Premium Feature— Remote Replication 193 6 In the Select capacity table, select the physical disks and ca pacities for the new disk group, then click Next. The P review (Activate Remote R eplication) wizard is displayed. 7 Click Fi n i s h .
194 Configuration: Premium Feature— Remote Replication Creating a Remote Replication Befor e creating a r emote r eplication, en sur e that all prer equisites are met. See "P rer equisites" on page 191 for mor e information. 1 Open the AMW of both the local and remote storage array .
Configuration: Premium Feature— Remote Replication 195 Selecting the Secondary Virtual Disk CAUTION: Creating a replicated virtual disk pair starts a process between the primary and secondary virtual disks that overwrites al l existing data on the secondary virtual disk and set the disk to read-only access.
196 Configuration: Premium Feature— Remote Replication also specify whether to use a write consistency group option. A write consistency group ensure s that the se condary virtual disk receives write requests in the sequence initiated by the RAID controller module of the primary virtual disk.
Configuration: Premium Feature— Remote Replication 197 • Manual resynchroniz ation (r ecommended)—The replicated pair must be manually resynchronized each time communication is restor ed between unsynchron ized replicated virtual disks. 3 Click Next .
198 Configuration: Premium Feature— Remote Replication RAID Controller Modu le Ownership/Preferre d Path During a remote r eplication operation, the R AID controller module that owns the primary vir tual disk must correspond to the R AID controller owning the secondary volume on the r emote array .
Configuration: Premium Feature— Remote Replication 199 Viewing the Storage Array Profile The Storage Array Pr ofile displays the most detailed information about the components of a r emote repl ication an d the replication r epository virtual disks.
200 Configuration: Premium Feature— Remote Replication Vi ewing the Properti es Pane The P roperties pane is a view-only display of the physical and logical characteristics of a single virtual disk in a r eplicated pa ir , or a single replication r epository virtual disk.
Configuration: Premium Feature— Remote Replication 201 V iewing the Phy sical Components or Logical Elements of the Prima ry Vi r t u a l D i s k T o view the physical components or logical elements.
202 Configuration: Premium Feature— Remote Replication Virtual Disk Status Icons In the Devices tab on the EMW , the following ic ons depict the status of each virtual disk: Changing W rite Mode an d Consistenc y Group Membership T able 13-1.
Configuration: Premium Feature— Remote Replication 203 The write mode of a remote r eplication is selected when it is cr eated. However , you can chan ge the write mode in a remote r eplication at a la ter time, as well as change the secondary virtual disk's membershi p in a write consistency group.
204 Configuration: Premium Feature— Remote Replication Resynchronizing V irtual Disks There ar e two r esynchronization methods for r emote replications: • Manual resynchronization—See " Manually Res ynchronizing Virtual Disks" on page 208.
Configuration: Premium Feature— Remote Replication 205 The communication between a p rimary and second ary virtual disks can b e suspended or become unsynchronize d. If commun ication between the primary virtual disk and the seco ndary virtual disk is disrupted: 1 The status of the replicated pair changes to Unsynchronized .
206 Configuration: Premium Feature— Remote Replication • Changing the segment size of a virtual disk • Defragmenting a disk group • Adding free capacity to a disk group • Changing the R AID .
Configuration: Premium Feature— Remote Replication 207 Unsynchronized Virtual Disks Communication between a primary and se condary virtual disks can be either suspended, or become unsynchronized. If this communication between both virtual disk s is disrupted: 1 The status of the replicated pair changes to Unsynchronized .
208 Configuration: Premium Feature— Remote Replication Automatically Resynchronizing Virtual Disks When automatic r esynchronization is se lected, the R AID controller module owning the primary virtual disk automati cally starts resynchronizing the data on the remote r e plication pair immedi ately after communica tion is restor ed.
Configuration: Premium Feature— Remote Replication 209 Reversing Roles Between the Primary and Seconda ry Virtu al Disks Reversing the roles between t he virtual disks promotes the secondary virtual disk to the role of primar y virtual disk and demotes the primary virtual disk to the role of secondary virt ual.
210 Configuration: Premium Feature— Remote Replication Promoting the Se condary V irtual Disk or Demot ing the Primary V irtual Disk T o promote the seco ndary vi rtual disk to the role of primary v.
Configuration: Premium Feature— Remote Replication 211 Resuming a Remote Replication 1 In the AMW of the storage array with the primary virtual disk, select the Log ic al tab. 2 In the Lo gi ca l pane, right-click the primary virtual di sk of the replicated pair , then s elect Re s u m e Re p l i c a t io n .
212 Configuration: Premium Feature— Remote Replication After the r emote virtual disk r eplicat ion r esumes, data is automatically written to the secondary vi rtual disk. Only the r egions of the primary virtual disk that changed since the replicated pair was suspended are written to the secondary virtual di sk.
Configuration: Premium Feature— Remote Replication 213 Deleting a Virtual Disk From a Replicated Pair in a Storage Array F o llow these steps to delete either a primary virtual disk, a secondary vi rtual disk, or bo th virtual disks from a r eplicated pair in a stora ge array .
214 Configuration: Premium Feature— Remote Replication Deleting a Secondary V irtual Disk NOTE: Depending on which premium features are enabled on the storage array , deleting a secondary virtual disk may delete a ll associated virtual disks, resulting in a possible loss of data on those virtual disks.
Configuration: Premium Feature— Remote Replication 215 Deleting a Secondary Virtual Disk in a Replicated Pair From a Storage Array 1 Stop all I/O activity on the secondary virtual disk and unmount an y file systems on the secondary virtual disk. 2 In the AMW of the storage array that contains the secondary virtual disk, select the Log ic al tab.
216 Configuration: Premium Feature— Remote Replication T o r emove remote r eplication from a st orage array : 1 In the AMW of the storage array containing the primary virtual disk, sel ect the Lo gi c al tab. 2 In the Lo gi c al pane, right-cl ick the primary virt u al disk of a r eplicated pair , then select R emove R eplication Rel ationship .
Configuration: Premium Feature— Remote Replication 217 Disabling the Remote Replication Premium Feature Before disabling th e Remo te Repli catio n premium feature, all r emote virtual disk r eplications mus t are removed on the storage arr ay . See "Disabl ing the Remote Re plication P remiu m F eatur e" on page 217.
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Configuration: Device M apper Multipath for Linux 219 14 Configuration: Device Mapper Multipath for Linux Overview The MD3600f Serie s storage arra y uses a Linux opera ting system software framework , known as Device Mapper (DM), to enable multipath capabilities on Linux Host Servers.
220 Configuration: Device Mapper Multipath for Linux Using DM Multipathing Devices NOTE: Using or modifyin g any nodes other than the multipathi ng device nodes can result in array or file sy stem problems, including loss of communication with the array and corruption of the file sy ste m.
Configuration: Device M apper Multipath for Linux 221 Device Mapper Con figuration Steps T o complete the DM multipathing configuration and make the storage available to the Linux host server : 1 Scan for virt ual disks. See "Scan for Newly Added Virtual Disks" on page 221.
222 Configuration: Device Mapper Multipath for Linux Display the Multipath Device T opology Us ing the Multipath Command The multipath command adds newly sca nned and mapped virtual disks to the Device Mapper tables and cr ea tes entries for them in the /dev/mapper dir ectory on the host server .
Configuration: Device M apper Multipath for Linux 223 _ round-robin 0 [prio=1][enabled] _ 6:0:0:22 sdcl 69:144 [active][ghost where: mpathb is the name of the virtual device cr eated by device mapper .
224 Configuration: Device Mapper Multipath for Linux The following examples provide information about the general mapping formats: On RHEL host s, a partit ion node has the for mat /dev/mapper/mpath<x>p<y>, where <x> is the alphabetic number for the multipathing device, <y> is the partition number for this device.
Configuration: Device M apper Multipath for Linux 225 Blacklist Local Drive in Multi-path Driver If your multipath drivers are connecting to storage ar ea networks (SANs), it may be useful to be able to ex clude or "b lacklist" certain devices in your /etc/multipath.
226 Configuration: Device Mapper Multipath for Linux CAUTION: Certain commands, such as lsscsi, di splay s one or more instances of Universal Xport devices.
Configuration: Device M apper Multipath for Linux 227 Limitations and Known Issues • In certain error con ditions with the no_pa th_r etry or the queue_if_no_path feature is set, applications may hang.
228 Configuration: Device Mapper Multipath for Linux T roubleshooting Question Answer How can I check if multipathd is running? Ru n t h e f o l l o w i n g c o m m an d /etc/init.d/multipathd statu s Why does the multipath –ll command output not show any devices? F irst verify if the devices are discover ed or not.
Management: Firmware Downloads 229 15 Management: Firmware Downloads Downloading RAID Controller and NVSRAM Packages A version number exists for each firm ware file. Th e vers ion num ber indicates whether the firmware is a major versio n or a m inor version.
230 Management: Firmware Downloads Downloading Both RAID Controller and NVSRAM Firmware NOTE: I/O to the array can continue while y ou are upgrading RAID controller and NVSRAM firmware. NOTE: Dell recommends that the firmware and NVSRAM be upgraded during a maintenance period when the array is not being used for I/O.
Management: Firmware Downloads 231 7 Click Tr a n s f e r . K eep these guidelines in mind: •I f t h e Tr a n s f e r button is inactive, e nsure that you either select an NVSR AM file or deselect th e T ransfer NVSR AM file with R AID controller module firmware option.
232 Management: Firmware Downloads 12 T o locate the dir ectory in which the file to download r esides, click Browse in the Select files area. The Select F ile dialog is displ ayed.
Management: Firmware Downloads 233 2 P erform one of these actions: • Select Advanced Maintenance Download RA I D C o n t r o l l e r Module NVSRAM • Select the Support tab, and click Download F irmware . In Select download task , select Download R AID controller module NVSR AM and click OK .
234 Management: Firmware Downloads NOTE: The Details pane shows the details of only one storage array at a time. If you select more than one storage array in the Storage array pane , the details of the storage array s ar e not shown in the Details pane.
Management: Firmware Downloads 235 Downloading Phy sical Disk Firmware CAUTION: When updating phy sical disk firmware, you must stop all I/O activity to the array to prevent data loss. The physical disk firmware controls vari ous features of the physical disk.
236 Management: Firmware Downloads T o download Phy sical Disk F irmware: 1 F rom the AMW , select Advanced Maintenance Download Physical Disk . The Download Physical Disk - Introduction window is displayed. 2 Click Next . The Download Physical Disk F irmware - Add P ackages window is displayed.
Management: Firmware Downloads 237 Downloading MD1200 Series Expansion Module EMM Firmware NOTE: Due to a limitation with Linux, expansion enclosure EM M firmware updates must be performed using out-of-band management only . Failure to do so may result in the host server becoming unrespons ive, and it ma y require a reboot.
238 Management: Firmware Downloads NOTE: If you click Stop while a firmware download is in progress, the download-in-progress finishes before t he operation stops. The sta tus for the remaining expansion enclosures changes to Canceled . Monitor the progress and completion status of the download to the expansion enclosures.
Management: Firmware Downloads 239 Media Errors and Unreadable Sectors If the R AID controller detects a medi a error while accessing dat a from a physical disk that is a member of a disk group with a.
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Management: Installing Array Compone nts 241 16 Management: Installing Array Components Recommended T ools Y ou may need the f ollowing items to pe rform the procedur es in this section: • Key to the system k eylock •# 2 P h i l l i p s s c r e w d r i v e r •W rist grounding stra p book.
242 Management: Installing Array Componen ts Front Bezel (Optional) Removing the Front Bezel 1 Using the system key , unlock the front bezel (if lock ed). 2 Lift up the r elease latch next to the keylock. 3 Rotate the left end of the be zel away from the front panel.
Management: Installing Array Compone nts 243 Hard Drives SAFETY : Models AMT , E03J, and E04J Models AMT , E03J, and E04J ar e intended for installation only in restricted access locations as defined in cl 1.2.7.3 of IEC 60950-1:2005. Depending on your configur ation, your array either supports up to twenty f o u r 2 .
244 Management: Installing Array Componen ts Figure 16-3. Removing and Installing a 2. 5" Hard-Drive Blank (MD3620f Only) Installing a Hard -Drive Blank 1 If installed, r emove the front bezel . See "Removing the F ront Bezel" on page 242.
Management: Installing Array Compone nts 245 If the drive is online, the green activity/ fault indic ator flashe s as the drive is powere d down. When the drive indica tors are off, the drive is re ady for re m o v a l . 3 P r ess the release button to open the drive carrier release handle.
246 Management: Installing Array Componen ts Installing a Hard Drive CAUTION: Many repairs may only be done by a certified se rvice technician. Y ou must only perform troublesh ooting and simple repairs as authorized in your product documentation, or as dir ected by the online or telephone service and support team.
Management: Installing Array Compone nts 247 Removing a Hard Drive From a Hard-Drive Carrier Remove the scre ws from the slide rails on the har d-drive carrier and separate the har d drive from the carrier . See F igure 16-5 for P owerV ault MD3600f and F igure 16 -6 for P owerV ault MD3620f.
248 Management: Installing Array Componen ts Figure 16-6. Removing and Installing a Hard Drive Into a 2.5" Hard-Drive Carrier 1 screws (4) 2 hard drive 3 SAS screw hole 4 hard-drive carrier 2 1 3 4 book.
Management: Installing Array Compone nts 249 Installing a Hard Drive Into a Hard-Drive Carrier 1 Insert the hard dr ive into the hard-d rive carrier with the connector end of the drive at the back. See F igure 16-5. 2 Align the scre w holes on the har d driv e with the back set of holes on the hard-drive carrier .
250 Management: Installing Array Componen ts 5 Connect all the power cables to the array . 6 T urn on the array and the host server . Figure 16-7. Removing and Installing a RAID Controller Module Blan.
Management: Installing Array Compone nts 251 Removing a RAID Controller Module CAUTION: Many repairs may only be done by a certified service technician. Y ou must only perform troubleshooting and simple repairs as authorized in your product documentation, or as direct ed by the online or telephone service and support team.
252 Management: Installing Array Componen ts Figure 16-8. Removing and Instal ling a RAID Controller Module Installing a RAID Controller Module WA RN I N G : Fiber optic cables are fragile. Bendi ng, twisting, folding, or pinching fiber optic cables can cause d amage to the cables, degraded performance, or loss of data.
Management: Installing Array Compone nts 253 3 Connect all the cables to the RAID co ntroller module. If SFP transceivers and fiber optic cabl es were pr esent, reinstall them in the correct ports. 4 If applicable, update the firmware for the RAID controller module.
254 Management: Installing Array Componen ts Figure 16-9. Opening and Closi ng the RAID C ontroller Module Closing the RAID Controller Module CAUTION: Many repairs may only be done by a certified service technician.
Management: Installing Array Compone nts 255 RAID Controller Module Backup Battery Unit Removing the RAID Controller Module Backup Battery Unit CAUTION: Many repairs may only be done by a certified service technician.
256 Management: Installing Array Componen ts Installing the RAI D Controller Modul e Backup Battery Unit CAUTION: Many repairs may only be done by a certified service technician. Y ou must only perform troubleshooting a nd simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team.
Management: Installing Array Compone nts 257 Power Supply/Cooling Fan Module NOTE: Y our storage array includes two integrated, hot-swappable power supply/cooling fan modules.
258 Management: Installing Array Componen ts Figure 16-11. Removing and Installing a Power Supply/Cooling Fan Module I n s t a l l i n g a P o wer Supply/Cooling Fan Module CAUTION: Man y repairs may only be done by a cer tified service techni cian.
Management: Installing Array Compone nts 259 Figure 16-12. Securing the Power Cable CAUTION: When connecting the power cable, secure the cable with the velcro strap. NOTE: If the array is powered on, all the power supply LEDs remain off until the AC power cable is connected to the power supply/cooling fan module and the power switch is turned on.
260 Management: Installing Array Componen ts 4 Slide the control panel out of the chassi s after: – Pushing the release tab towar d the front of the array in Po w e r V a u l t MD3600f . See F igure 16-13. – Pulling the r elease pin toward the front of the array in Po w e r V a u l t MD3620f .
Management: Installing Array Compone nts 261 Figure 16-14. Removing and Installing t he Control Panel-PowerV ault MD3620f Installing the Control Panel 1 Align the control pane l with the slot on the array . 2 Slide the control panel into the array until: – The r elease tab clicks into place in P owerV ault MD36 00f .
262 Management: Installing Array Componen ts Backplane CAUTION: Many repairs may only be done by a certified se rvice technician. Y ou must only perform troublesh ooting and simple repairs as authorized in your product documentation, or as dir ected by the online or telephone service and support team.
Management: Installing Array Compone nts 263 Figure 16-15. Removing and Installing the RA ID Controller Modul e/Power Supply Cage 1 screws (6) 2 RAID controller module/power supply cage 2 1 book.
264 Management: Installing Array Componen ts Figure 16-16. Removing and Installi ng the Backplane-PowerV ault MD3600f Figure 16-17. Removing and Installi ng the Backplane-PowerV ault MD3620f 1 screws (5) 2 backplane 3 captive screw 1 screws (4) 2 backplane 3 captive screw 2 1 3 2 1 3 book.
Management: Installing Array Compone nts 265 Installing the Backplane 1 Align the holes on the backplane wi th the holes on the array . 2 Tighten the captive s crew to secure the backplane to the chassis. Se e F igure 16-16 for P owerV ault MD3600f or F igure 16-17 for P owerV ault MD3620f.
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Management: Firmware Inventory 267 17 Management: Firmware Inventory A storage array is made up of many components, which may include R AID controller modules, physical disks, and enclo sur e management modules (EMMs). Each of these components co ntains firmware.
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Management: Sy stem Interfaces 269 18 Management: Sy stem Interfaces Microsoft Services V irtual Disk Service The Microsoft V irtual Disk Service (VDS) is a component of t he W indows operatin g system.
270 Management: Sy stem Interfaces VSS attaches to the service and uses it to coor dinate the cr eation of snapshot virtual disks on the storag e array . VSS-initiated snap shot virtual disks c an be triggere d through backup to ols, known as requestors.
T roubleshooting: Y our Storage Array Software 271 19 T roubleshooting: Y our Storage Array Software Start–Up Routine L ook and listen during t he array ’s start-up routine fo r the indications described in T able 19-1. F o r a descri ption of the front- and back-panel indicators, see "Planning: About Y o ur Storage Array" on page 25.
272 T roubleshooting: Y our Storage Array Software T o launch the AMW , perform on e of these actions: •O n t h e Devices tab, in either the T r ee view or the T able view , double-click a storage array . Alternatively , you can right-click a storage array and select Manage Storage Array from the pop-up men u.
T roubleshooting: Y our Storage Array Software 273 In the T a ble view , every managed sto rage array is listed once, r egardless of the number of attachment s it has in the T ree view . After the storage array is contacted by MDSM, an icon representing i ts h a rd wa re s t a tu s i s d i sp l a ye d .
274 T roubleshooting: Y our Storage Array Software NOTE: MDSM may take a few minutes to update a status change to Unresponsive or from Unresponsive. A status change from or to Unresponsive depends on th e network link to the storage array . All other status change updates faster .
T roubleshooting: Y our Storage Array Software 275 2 Enter a name for the support data file in Specify filename or click Browse to navigate to a previously saved file to overwrite an existing file. The suffix .zip is added automatically to the file if you do not specify a suffix for the fil e.
276 T roubleshooting: Y our Storage Array Software Collecting the Phy sical Disk Data Y ou can use the Collect Physical Disk Da ta optio n to colle ct log sens e data from all the physical disks on your storage array . L og sense data consists of statistical informat ion that is mainta ined by each of the physical disks in your stor age array .
T roubleshooting: Y our Storage Array Software 277 Event Log Y ou can use the Event Log V iewer to view a detailed list of events that occur in a storage array . The event log is stored on r eserved areas on the storage array disks. I t recor ds configuration events and storage arr ay component failur es.
278 T roubleshooting: Y our Storage Array Software Recovery Guru The Recovery Guru is a component of MDSM tha t diagnoses critical even ts on the storage array and recommends step-by-st ep re covery proc edures to res olve the problems. In the AMW , to display the Recovery Guru, perform one of these actions: •C l i c k Rec o v er y G ur u .
T roubleshooting: Y our Storage Array Software 279 2 P erform one of these actions in the Storage Array P rofile dialog: • View detailed information—Go to step 3. • Search the storage array profile—Go to step 4. • Save the storage array profile—Go to step 5.
280 T roubleshooting: Y our Storage Array Software e In Fi l e N a m e , type the file name of your choice. T o associate the file with a particular software application that is displayed it, specify a file extension, such as .txt. NOTE: The file is saved as ASCII text.
T roubleshooting: Y our Storage Array Software 281 V iewing the Phy sical Associations Y ou can use the Associated Physical Co mponents option to view the physical components that are a ssociated with.
282 T roubleshooting: Y our Storage Array Software T o find nodes: 1 In the AMW , select Vi e w Fi n d . 2 Based on the type of sear ch, select one of these options, and go to the indica ted step : • Search by name—see step 3. • Search by special criteria—see step 4.
T roubleshooting: Y our Storage Array Software 283 c Specify that the free capacity to be matched is less than, equal to, or gr eater than the capacity enter ed in the GB box. d Go to step 8. 8 Click Fi n d N e x t . T o see every node that matches t he criteria, click Fi n d N e x t repeatedly .
284 T roubleshooting: Y our Storage Array Software 4 Select Vi e w Go T o Source V irtual Disk . The selection jumps to the associated source virtual disk in the Lo gi c al pane. 5 Select Vi e w Go T o Ta r g e t V i r t u a l D i s k .
T roubleshooting: Y our Storage Array Software 285 7 If the verification is successful , see step 8, if not, see step 9. 8 Remove the storage array with the Un responsive status f rom the EMW , and select Add Storage Array to add the storage arr ay again.
286 T roubleshooting: Y our Storage Array Software 20 If the problem still e xists, mak e the appropriate host modifications, check with other administrators to see if a f irmwar e upgrade was performed on the R AID controll er module from another s torage management sta tion.
T roubleshooting: Y our Storage Array Software 287 Locating a Phy sical Disk Y ou can use the L ocate Physical Disk op tion to physically locate and identify one or more of the physical disks in an e xpansion enclosure by activating physical disk LEDs.
288 T roubleshooting: Y our Storage Array Software T o locate the expansion enclosur e: 1 Select the Physical tab. 2 Select a physical disk in the expansion enclosure that you want to locate. 3 Select Physical Disk Blink Expansion Enclosure . The LED or LEDs on the e xpansion en closure or physical disks come on.
T roubleshooting: Y our Storage Array Software 289 Use the convention filename.dmp for the name of the file. The suffix .dmp is added to the file automaticall y if you do not speci fy a suffix for the file. 4 Click Start . NOTE: Each test shows a status of Executi ng while it is in progress.
290 T roubleshooting: Y our Storage Array Software SMrepassist -f E: NOTE: In Windows, the mount point path is a drive letter . An error message is displayed in the command line when the utility cannot distinguish between the following: • Source virtual disk and snapshot virtua l disk (for e xample, if the snapshot virtual disk is removed).
T roubleshooting: Y our Storage Array Software 291 3 If you have an in-band storage array , use the following procedure. Click Re f r e s h after each step to check the results: a Ensure that the host context agent softwar e is installed and running.
292 T roubleshooting: Y our Storage Array Software b Remove the storage array with the unresponsive status from MDSM, and add that storage array again. If the storage array r eturns to optimal status, you have completed this procedure. c Examine the ethernet cables to en sure that you cannot see any damage and that they are tightly connected.
T roubleshooting: Y our Storage Array Software 293 Starting or Restarting the Host Context Agent Software The host conte xt agent softwar e module is the softwar e component that r esides on the server or manage ment station th at commun icate s with the MD3600f series storage arrays.
294 T roubleshooting: Y our Storage Array Software Copyright (C) 2009-2010 Dell, Inc. All rights reserved. Checking device <n/a> (/dev/sg10): Activating Checking device /dev/sdb (/dev/sg11): Ski.
T roubleshooting: Y our Array 295 20 T roubleshooting: Y our Array Safety First—For Y ou and Y our Array CAUTION: Many repairs may only be done by a certified service technician.
296 T roubleshooting: Y our Array Equip yourself with antistatic protection and a r eplacement small form-factor pluggable (SFP) transceiver before r eplacing an SFP transceiver in the RAID controller module. Also , see the initial setup information for the enclosur e to verify LED definitions.
T roubleshooting: Y our Array 297 Figure 20-1. Removing an SFP Module 7 Install the new SFP transc eiver into the interface port. Ensure that the transceiver is properly seated. 8 Reconnect the fiber optic cable. 9 V iew the FCIN speed LEDs and the Physical Disk Channel speed LEDs.
298 T roubleshooting: Y our Array T roubleshooting External Connections • V erify that the cables are connec ted to the correct ports befor e troubleshooting any extern al devices. T o locate the back-pane l connectors on your array , see F igur e 3-1.
T roubleshooting: Y our Array 299 CAUTION: Power supply/cooling fan modules are hot-swappable. The array can operate on a single power supply; however both modules must be installed to ensure proper cooling. A single power s upply/cooling fa n module can be removed from a powered-on array for a maximum peri od of 5 minutes.
300 T roubleshooting: Y our Array T roubleshooting Expansion Enclosure Management Modules CAUTION: Many repairs may only be done by a certified se rvice technician. Y ou must only perform troublesh ooting and simple repairs as authorized in your product documentation, or as dir ected by the online or telephone service and support team.
T roubleshooting: Y our Array 301 d T urn on the server . e Check the lin k status LED. If the li nk st atus LED is not green, replace the cables. If the problem is not r esolved, see " Ge tt in g He l p" o n pa g e 3 09 . T roubleshooting RAID Controller Modules CAUTION: Many repairs may only be done by a certified service technician.
302 T roubleshooting: Y our Array • If both LEDs for an y given FCIN port are unlit, see "T roubleshooting Arra y and Expansion Enclosure Connections" on page 303. a T urn off the server , storage arrays, and expansion enclosur es. b Reseat the RAID controller module and reconnect cables on the storage array and the server .
T roubleshooting: Y our Array 303 T roubleshooting Array and Expansion Enclosure Connections 1 V er if y th a t th e S A S O U T st a tu s LE D is g ree n an d th a t f o r e a c h F CI N po r t connected to a cable, at least one of th e paired LEDs is on.
304 T roubleshooting: Y our Array T roubleshooting a Wet Storage Array CAUTION: Many repairs may only be done by a certified se rvice technician. Y ou must only perform troublesh ooting and simple repairs as authorized in your product documentation, or as dir ected by the online or telephone service and support team.
T roubleshooting: Y our Array 305 T roubleshooting a Damaged Array CAUTION: Many repairs may only be done by a certified service technician. Y ou must only perform troubleshooting and simple repairs as authorized in your product documentation, or as direct ed by the online or telephone service and support team.
306 T roubleshooting: Y our Array T roubleshooting RAID Controller Modules Conditions Certain events can cause a R AID controll er module to fail and/or shut down. Unrecoverable ECC memory or PCI errors, or critical physical conditions can cause lockdown.
T roubleshooting: Y our Array 307 PCI Errors The storage array firmwar e can detect an d only recover from PCI errors when the R AID con troller modules are configur ed for redundancy . If a virtual disk uses cache mirroring, it fail s over to its peer R AID controller module, which initiates a flush of the dirty cache.
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Getting Help 309 21 Getting Help Contacting Dell F or cus tomers in the United States , call 800- WWW -DELL (800-9 99-3355). NOTE: If you do not have an active Inte rnet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog.
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Index 311 Index A Access Virtual Disk, 70 Advanced F eatur e Using Snaps hot and Disk Copy To g e t h e r, 5 9 Advanced F eatur es, 55 Snapshot Repository Virtual Disk, 5 7 Snapshot Virtual Disks, 5 6.
Index 312 D Defining a Host, 90 Dell contacting, 3 0 9 Disk Group Creating, 1 0 2 Expansion, 1 3 8 Export, 1 4 0 E x p o r t i n g , 141 Import, 1 4 1 L o c a t i n g , 104 Migration, 1 4 0 Disk Group.
Index 313 re m o v i n g , 2 4 4 Har d-Drive Indicator Pa t t e r n s , 3 0 H ard w a re F e a t u re s Back panel featur es, 2 9 F ront panel featur es, 2 6 Hard dr ive indicator patterns, 3 0 P ower.
Index 314 Vi rt u a l D i s k C o p y , 5 7 Monitoring P e rformance, 61 Multi-P ath P referre d and Alternate Controllers and P aths, 5 9 Multi-P ath Software, 59 N Non-Exportable Components, 140 O O.
Index 315 har d drive from a drive carrier , 2 4 7 power supply/cooling fan module, 2 5 7 Removing Copy P airs, 182 Removing Host Access, 92 Restricted Mappings, 132 S Safety , 21 safety , 295 Securit.
Index 316 Starting or Restarting the Host-Agent Softw are, 2 9 3 Start-Up Routine, 2 7 1 Storag e Array P rofile, 2 7 8 Storage Array Support Data, 2 7 4 Unidentified De vices, 2 9 0 Vi ew in g t h e .
Index 317 V irtual Disks and Disk Groups, 43 Z Zoning Guidelines, 1 9 0 Switch Configurations, 1 9 0 book.book Page 317 Friday, Sep tember 23, 2011 2:46 PM.
318 Index book.book Page 318 Friday, Sep tember 23, 2011 2:46 PM.
Een belangrijk punt na aankoop van elk apparaat Dell POWERVAULT MD3600F (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen Dell POWERVAULT MD3600F heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens Dell POWERVAULT MD3600F vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding Dell POWERVAULT MD3600F leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over Dell POWERVAULT MD3600F krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van Dell POWERVAULT MD3600F bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de Dell POWERVAULT MD3600F kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met Dell POWERVAULT MD3600F . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
