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Product Manual Cheet ah 15K.7 FC 100516225 Rev . C September 20 10 St andard models ST3600057FC ST3450857FC ST3300657FC Self-Encrypting Drive models ST3600957FC ST3450757FC ST3300557FC SED FIPS 140-2 .
© 2010, Seagate T echnology LLC All rights reserved. Publication number: 1005 16225, Rev . C September 2010 Seagate, Seagate T echnology and th e W ave logo ar e registered tra demarks o f Seagate T echnology LLC in the United St at es and/or othe r countries.
Cheetah 15K.7 FC Product Manual, Rev. C i Content s 1.0 Seagate Technology support services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii Cheetah 15K.7 FC Product Man ual, Rev. C 7.4.1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 7.4.2 Relative humidit y . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cheetah 15K.7 FC Product Manual, Rev. C iii 12.3.1 Inquiry data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 12.3.2 Mode Sense data . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iv Cheetah 15K.7 FC Product Man ual, Rev. C.
Cheetah 15K.7 FC Product Manual, Rev. C 1 1.0 Seagate T echnology support services SEAGA TE ONLINE SUPPORT and SERVICES For information regarding pr oducts and services, visit http://www .
2 Cheetah 15K.7 FC Product Manual , Rev. C 2.0 Scope This manual describes Seagate T echnology ® LLC, Cheetah ® 15K.7 FC (Fibre Channel) disc drives. Cheetah 15 K.7 FC drives support the Fi br e Channel Arbi trated Loop an d SCSI Fibre Channel Protocol specifi- cations to the extent described in th is manual.
Cheetah 15K.7 FC Product Manual, Rev. C 3 3.0 Applicable st andards an d reference document ation The drive has been developed as a syst em peripheral to the highest standa rds of design and construction.
4 Cheetah 15K.7 FC Product Manual , Rev. C 3.1.2 Elec tromagnetic compliance Seagate uses an in dependent laboratory to confirm comp liance with the directives/st andards for CE Marking and C-T ick Marking. The drive was tested in a represen t ative system for typical applications.
Cheetah 15K.7 FC Product Manual, Rev. C 5 3.3 Reference document s ANSI Fibre Ch annel Docume nts X3.230-1994 FC Physical and Signaling Inte rface (FC-PH) X3.297.1997 FC-PH-2 Fibre Channel Ph ysical and Signaling Inter face-2 X3.303.1998 FC-PH-3 Fibre Channel Ph ysical and Signaling Inter face-3 X3.
6 Cheetah 15K.7 FC Product Manual , Rev. C 4.0 General description Cheetah 15K.7 FC drive s provide high performance, high capacity dat a stor age fo r a variety of systems includ- ing engineering workst ations, network servers, mainfr am es, and supercomputers.
Cheetah 15K.7 FC Product Manual, Rev. C 7 4.1 St andard features Cheetah 15K.7 FC d rives have t he following standard features: • 4-Gbit Fibre Channel interface • Integrated du al port FC-AL cont.
8 Cheetah 15K.7 FC Product Manual , Rev. C 4.2 Media description The media used on the drive has an a luminum substrate co ated with a th in f ilm m ag ne tic m at er ial, overcoated with a proprietary prot ective layer for impr oved durability and envi ronmental protection.
Cheetah 15K.7 FC Product Manual, Rev. C 9 4.5.1 Prog rammable drive cap acity Using the Mode Select command, th e d rive can change it s capacity to something less than maximum. See the Mode Select Parameter List t able in the SCSI Commands Referenc e Manu al .
10 Cheetah 15K. 7 FC Produc t Manual, Rev. C 5.0 Performance characteristics This section provides det ailed information concerning performa nce-related characte ristics and features of Cheetah 15K.
Cheetah 15K.7 FC Product Manual, Rev. C 11 5.2.2 Format command exe cu ti o n tim e (m inu te s ) When changing sector sizes, the fo rmat times show n below may need to be increa se d by 30 minutes. Note. Th ere is approximately a 1.5 increase in time to format a SED drive versus a non-SED drive of the same capacity .
12 Cheetah 15K. 7 FC Product M anual, Rev. C 5.4 Prefetch/multi-segmented cache control The drive provides a prefetch (read look-ahe ad) and mu lti-segmente d cache control algorithms that in ma ny cases can enhance system performance . Cache refers to the drive buf fer storage space when it is used i n cache operations.
Cheetah 15K.7 FC Product Manual, Rev. C 13 5.5.1 Caching write dat a Write caching is a write op eration by the dr ive that m akes us e of a driv e buffer storag e area where th e data to be written to the med ium is stored while the drive performs the W rite command.
14 Cheetah 15K. 7 FC Product M anual, Rev. C 6.0 Reliability specifications The following reliability specifications assume correct host and drive operational interfac e, including all inter- face timings, power supply volt ages, environmenta l requirement s and drive mounting constrain ts.
Cheetah 15K.7 FC Product Manual, Rev. C 15 6.1.3 Seek errors A seek error is defined as a failure of the drive to posi tion the heads to the addressed track. After de tecting an initial seek error , the drive automatically performs an er ror recovery process.
16 Cheetah 15K. 7 FC Product M anual, Rev. C present, loop operation may continue. If the bypass circuit is not present, loop operation will be halted while the self test of th e FC interface runs. When the self test completes success fully , the control line to the bypass circuit is di sabled and the drive en ters the FC-AL Initializing st ate.
Cheetah 15K.7 FC Product Manual, Rev. C 17 Determining rate S.M.A.R.T . monitors the rate at which erro rs occur and sig nals a pred ictive fai l ure if the ra te of deg rad ed er ro rs increases to a n unaccep t able level. T o determine r ate, er ror e vent s are logged and compare d to the number of total opera tions for a given attribute.
18 Cheetah 15K. 7 FC Product M anual, Rev. C 6.2.6 Drive Self T e st (DST) Drive Self T est (DST) is a technology desi gned to recogn ize drive fault conditions th at qualify the dr ive as a failed unit. DST validates the functi onality of the drive at a system level.
Cheetah 15K.7 FC Product Manual, Rev. C 19 6.2.6.2. 3 Short a nd exten ded tests DST has two testing options: 1. short 2. extended These testing options are describ ed in the following two subsections. Each test consists of three segment s: an electrical te st segment, a servo test se gment, and a read/verify scan segment.
20 Cheetah 15K. 7 FC Product M anual, Rev. C 6.2.7 Product wa rranty Beginning on the date of shipme nt to the customer an d continui ng for the period specified in your purcha se contract, Seagate wa.
Cheetah 15K.7 FC Product Manual, Rev. C 21 7.0 Physical/electrical specifications This section provides information relating to the physical and electrical char acteristics of the drive. 7.1 AC power requirement s None. 7.2 DC power requirement s The volt age and current requirement s for a single drive are shown be low .
22 Cheetah 15K. 7 FC Product M anual, Rev. C T able 2: ST3600057FC DC power requir ements 2 Gbit 4 Gbit Notes (Amp s) (Amps) (Amp s) (Am p s) V oltage +5V +12V [2] +5V +12V [2] Regulation [5] ±5% ±5% [2] ±5% ±5% [2] Avg idle current DCX [1] [7] 0.
Cheetah 15K.7 FC Product Manual, Rev. C 23 [1] Measured with average reading DC ammeter . Instant aneous +12V cu rrent peaks will exceed these val - ues.
24 Cheetah 15K. 7 FC Product M anual, Rev. C 7.2.1 Conducted noise immunity Noise is specified as a peri odic and random distributi on of frequencies covering a ban d from DC to 10 MHz. Maximum allowed noise values given belo w are peak-t o-peak meas urements and apply at the drive power connector .
Cheetah 15K.7 FC Product Manual, Rev. C 25 Figure 2. T ypical ST3450857FC cur ren t profiles.
26 Cheetah 15K. 7 FC Product M anual, Rev. C Figure 3. T ypica l ST3 300657FC current profiles.
Cheetah 15K.7 FC Product Manual, Rev. C 27 7.3 Power dissip ation 600GB model T ypical power dissipation under idle conditions in 4 Gbit operation is 1 1.58 watts (39.52 BTUs per hour). T o obtain ope rating power for typica l random read operatio ns, refer to the following I/O rate curve (see Figure 4).
28 Cheetah 15K. 7 FC Product M anual, Rev. C 450GB models T ypical power dissip ation under idle conditions in 4 Gbit operation is 10.24 watts (34.94 BTUs per hou r). T o obtain ope rating power for typica l random read operatio n s, refer to the following I/O rate cu rve (see Figur e 4).
Cheetah 15K.7 FC Product Manual, Rev. C 29 300GB models T ypical power dissipa tion under idle conditions in 4 Gbit op eration is 9.06 watts (30.92 BTUs per ho ur). T o obtain ope rating power for typica l random read operatio ns, refer to the following I/O rate curve (see Figure 4).
30 Cheetah 15K. 7 FC Produc t Manual, Rev. C b. Non-operatin g –40° to 158°F (–40° to 70°C) package ambie nt with a maximum gradien t of 86°F (30°C) per hour . This spe cification assumes that the dr ive is p ackaged in the ship ping conta iner designed b y Seagate for use with drive.
Cheetah 15K.7 FC Product Manual, Rev. C 31 7.4.4 Shock and vibration Shock and vibration limits specified in this do cument are mea sured directly on the drive chassis.
32 Cheetah 15K. 7 FC Produc t Manual, Rev. C Z Y X Z Y X Figure 8. Re commended mounting.
Cheetah 15K.7 FC Product Manual, Rev. C 33 7.4.4.2 Vibration a. Operating—normal The drive as inst alled for normal op eration, shall comply with the complete sp ecified performance while subjected to continuous vi bration not exceeding 10 – 300 Hz 1.
34 Cheetah 15K. 7 FC Product M anual, Rev. C 7.4.7 Corros iv e en v iro nm ent Seagate elect ronic drive components pa ss accelerated corrosion te sting equivalent to 10 years e x posure to light industr ial environments cont aining sulfuro us gases, chlor ine and nitr ic o xide, classes G and H per ASTM B845.
Cheetah 15K.7 FC Product Manual, Rev. C 35 7.5 Mechanical specifications Refer to Figure 9 for det ailed physical dim ensions. See Section 1 1.4, “Driv e mounting .”” S -Z- T // J H L B K [1] F [1] D E -Z- Mounting holes are 6-32 UNC 2B, three on each side and four on the bottom.
36 Cheetah 15K. 7 FC Product M anual, Rev. C 8.0 About FIPS The Federal Information Proce ssing S tandard (FIPS) Publication 140- 2, FIPS PU B 140-2, is a U.S. govern- ment computer security st andar d used to accredit cryptogr aphic modules. It is titled “Security Req uirement s for Cryptographic Mo dule s”.
Cheetah 15K.7 FC Product Manual, Rev. C 37 9.0 About self-e ncrypting drives Self-encrypting drives (SEDs) offer encr yption and secu rity services for the protection o f stored dat a, com- monly known as “protection of data at rest .
38 Cheetah 15K. 7 FC Product M anual, Rev. C 9.2.2 Locking SP The Locking SP contro ls read/write a ccess to the medi a and the cryptogr aphic e rase feature.
Cheetah 15K.7 FC Product Manual, Rev. C 39 9.6 Cryptographic erase A significant featur e of SEDs is the ability to perform a cryptograp hic erase. This involv es the host telling the drive to change the dat a encryption key for a particul ar ban d.
40 Cheetah 15K. 7 FC Product M anual, Rev. C 10.0 Defect and er ror management Seagate continues to use innova tive technologies to manage defect s and errors. These technologies are designed to increase dat a integrity , perform drive self-maintenance, and validat e proper drive operation.
Cheetah 15K.7 FC Product Manual, Rev. C 41 read or re-write a ttempt. The maximum level used b y the drive in LBA r ecovery is determined by the read and write retry counts. T able 5 equates th e read and write r etry count with th e ma ximum possible recovery tim e for read and wr ite recovery of individual LBAs.
42 Cheetah 15K. 7 FC Product M anual, Rev. C [1] These va lues are subje ct to change. Setting these retry count s to a value below the default setting could r esult in an increased unreco vered error rate which may exceed the value given in this product manual.
Cheetah 15K.7 FC Product Manual, Rev. C 43 10.4 Background Media Scan Background Media Scan ( BMS) is a self-initiated medi a scan. BMS is defin ed in the T10 doc ument SPC-4 available from the T10 co mmittee. BMS performs sequentia l reads a cross the entire pa ck of the media while the drive is idle.
44 Cheetah 15K. 7 FC Product M anual, Rev. C 10.7 Idle Read After W r ite Idle Read After W r ite (IRA W) utilizes idle time to verify the integrity of rece ntly written data.
Cheetah 15K.7 FC Product Manual, Rev. C 45 1 1.0 Inst allation Cheetah 15K.7 FC dis c drive installation is a pl ug-an d-pla y proc ess. Th ere a re no jumper s, sw itch es, or term i- nators on the drive. Simply plug the drive into th e host’s 40 -pin Fibre Channel backp anel connector (FC- SCA) — no cables are require d.
46 Cheetah 15K. 7 FC Product M anual, Rev. C 1 1.3 Cooling The host enclosure must dissipate he at from the drive . Y o u sh ou ld co nf irm that the host encl osure is designed to ensure that the drive op erates within the temp eratur e measurement guideline s described in Section 7.
Cheetah 15K.7 FC Product Manual, Rev. C 47 1 1.4 Drive mounting Mount the drive usin g the bottom or side mounting hole s . If you mou nt the drive using th e bottom holes, ensure that you do not physically d istort the d rive by at tempting to mount it on a stiff, non-flat surface.
48 Cheetah 15K. 7 FC Product M anual, Rev. C 12.0 Interface requirements This section partially describes the interface r equirements as im plemented on Cheet ah 15K.7 FC drives. Addi- tional information is provided in the Fibre Channel I nterface M anual (part number 10 0293070).
Cheetah 15K.7 FC Product Manual, Rev. C 49 12.1.2 Fibre Channel t ask management functions T able 7 lists the Fibre Channel SCSI Fibre Ch annel Pr otocol (FC SCSI FCP) t a sk management functions sup- ported.
50 Cheetah 15K. 7 FC Produc t Manual, Rev. C 12.1.4 Fibre Channel port login T able 9 identifies the required content of the N_Port Login (PLOGI) payload from an initiator .
Cheetah 15K.7 FC Product Manual, Rev. C 51 12.1.5 Fibre Channel port login accept T able 10 identifies the N_Port Login access pa yload values. 12.1.6 Fibre Channel Process Login T able 1 1 lists the process login payload da ta. XX Indicates fields tha t are not used.
52 Cheetah 15K. 7 FC Product M anual, Rev. C 12.1.7 Fibre Channel Proces s Login Accept T able 12 lists Cheeta h 15K.7 FC process login accept payload dat a.
Cheetah 15K.7 FC Product Manual, Rev. C 53 12.1.9 Fibre Channel fabric accept login T able 14 lists the require d cont en t of th e Fa b ric Lo g in A cce pt (ACC) payload from th e fa br ic.
54 Cheetah 15K. 7 FC Product M anual, Rev. C 12.1.10 Fibre Channel Arbitr ated Loop options T able 15 lists the FC-AL optio ns su pported by Cheeta h 15K.7 FC drives. 12.2 Dual port support Cheetah 15K.7 F C drives have two independent FC-AL por ts. These p orts may b e connected on independent loops or on the same loop.
Cheetah 15K.7 FC Product Manual, Rev. C 55 T able 16: Supported commands Command code Supported (Y/N) [4] Command name Executable st ate of standard SCSI commands in t he presence of LBA banding (appl.
56 Cheetah 15K. 7 FC Product M anual, Rev. C Y Power control page (1Ah) Y Information exceptions control p age (1Ch) Y Background Scan mode subpage (01h) 1Bh Y S tart unit/stop unit Y Y Executable Exe.
Cheetah 15K.7 FC Product Manual, Rev. C 57 3Ah N Copy and verify 3Bh Y W rite buffer N Y Check Condition Check Condition (all modes except modes 4h - 7h, 0Eh, and 0Fh) Y N Executable Executable (modes.
58 Cheetah 15K. 7 FC Product M anual, Rev. C [1] Cheetah 15K.7 FC drives can format to 512, 520, 524 or 528 bytes per logical blo ck. [2] Wa r ni n g . Power loss during flash programming can r esult in firmware corruption. This usually makes the drive inoperable.
Cheetah 15K.7 FC Product Manual, Rev. C 59 [3] Reference Mode Sense command 1Ah for mo de pages supported. [4] Y = Y es. Command is supp orted. N = No.
60 Cheetah 15K. 7 FC Product M anual, Rev. C On drives requiring unique sa ved values, the required unique saved va lues are stored into the sa ved val - ues storage location on the media prior to shipping the drive. Some d rives may have unique firmwa re with unique default values also.
Cheetah 15K.7 FC Product Manual, Rev. C 61 T able 18: Mode Sense data saved, default and chang eable values for ST3600057F C drives MODE DATA HEADER: 00 be 00 10 00 00 00 08 MODE PAGES: DEF 81 0a c0 0.
62 Cheetah 15K. 7 FC Product M anual, Rev. C T able 19: Mode Sens e data default and changeable values for ST3450857FC drives MODE DATA HEADER: 00 be 00 10 00 00 00 08 BLOCK DESCRIPTOR: 34 65 f8 70 00.
Cheetah 15K.7 FC Product Manual, Rev. C 63 T able 20: Mode Sense data default and changeable values for ST33 006 57FC drives MODE DATA HEADER: 00 be 00 10 00 00 00 08 BLOCK DESCRIPTOR: 22 ec b2 5c 00 .
64 Cheetah 15K. 7 FC Product M anual, Rev. C 12.4 Miscellaneous operating features and conditions T able 21 lists various features and conditi ons. A “Y” in th e support column indicates t he feature or condition is supported. An “N” in the support column indicates the feat ure or condition is not supported.
Cheetah 15K.7 FC Product Manual, Rev. C 65 12.5 FC-AL physical interface Figure 12 shows the location of the J1 Fibre Channel single connection attachment (FC-SCA) . Figure 14 pro- vides the dimens ion s of th e FC -SCA connector . Details of the physical, electrical, an d logical char acteristics are provided wi thin this section.
66 Cheetah 15K. 7 FC Produc t Manual, Rev. C 12.5.2 Connector requirement s T able 23: Recommended mating SCA part numbers Part description Positions Part number Feature s AMP V ertical (SCA seque nce.
Cheetah 15K.7 FC Product Manual, Rev. C 67 T a bl e 24: FC-SCA pin descriptions Pin Signal name Signal type Pin Signal name Signal ty pe 1* -EN bypass port A Low V oltage TTL output 21 12 V olts charge 2* 12 V olts 22 Ground 3* 12 V olts 23 Ground 4* 12 V olts 24* +Port A_in FC Diff.
68 Cheetah 15K. 7 FC Product M anual, Rev. C 12.5.6 Power Power is supplied through the FC-SCA with support for +5 volt s and +12 volt s. All of the voltage pins in the drive connector are the same length. Four 12 volt pins provide +12 volt power to the d rive.
Cheetah 15K.7 FC Product Manual, Rev. C 69 12.5.8 Active LED Out The Active LED Out signal is driven by the drive as indicated in T able 25. The Active LED Out signal is designed to pull down th e cathode of an LED. Th e anode is atta ched to the proper +5 volt supply through an appropriate current lim iting resistor .
70 Cheetah 15K. 7 FC Product M anual, Rev. C 12.5.1 1 SEL_6 through SEL_0 ID lines The SEL_6 through SEL_0 ID lines determine drive address , and, optionally , fo r an Enclosure Services Inter- face. When the Parallel ESI lin e is high , the e nclosure backp ane l must p rovide add ress in formation on the SEL line.
Cheetah 15K.7 FC Product Manual, Rev. C 71 T able 27: Arbitrated loop physical add ress (AL_P A) values AL_P A (hex) SEL ID (hex) Setting (dec) AL_P A (hex) SEL ID (hex) Setting (dec) AL_P A (hex) SEL.
72 Cheetah 15K. 7 FC Product M anual, Rev. C 12.5.12 Device con trol codes The drive input s a Device Control Code on th e DEV_CTRL_CODE lines at p ower up to determine the link rate on the Fibre Channel ports.
Cheetah 15K.7 FC Product Manual, Rev. C 73 12.6.2 LED driver signals Fault and Active LED signals are located in the FC-SCA connecto r ( J1). See T able 30 for th e ou tp ut ch aracte r- istics of the LED drive signals. 12.6.3 FC Differential output The serial ou tput signal volta ge char acteristics ar e provided in T able 31.
74 Cheetah 15K. 7 FC Produc t Manual, Rev. C Figure 17 p rovides the data valid eye diagram for typical and m inimum requ irements to recover data at the specified inte rface erro r rate.
Cheetah 15K.7 FC Product Manual, Rev. C 75 Index Numerics 12 volt pins 68 3rd party reserve command 58 5 volt pins 68 A Abort Sequence (ABTS) 48 abort task set function 49 AC coupling 67 AC power requ.
76 Cheetah 15K. 7 FC Product M anual, Rev. C Cryptographic erase 39 CS 50 Current pr ofiles 24 customer service 20 D DAR 43 Data Bands 38 data bands 37 Data encryption 37 Data Encryption Key 37 data h.
Cheetah 15K.7 FC Product Manual, Rev. C 77 FCP for SCSI, document 5 response codes 49 task management functions 49 FC-PH documen t 5 FDE features 7 features 7 interface 48 Fibre Channel documents 5 Fi.
78 Cheetah 15K. 7 FC Product M anual, Rev. C FC-AL options 54 loop position report FC-AL options 54 LS_RJT 50 , 53 LSI circuitry 8 M maintenance 14 Makers Secure ID 37 maximum delayed motor start 22 ,.
Cheetah 15K.7 FC Product Manual, Rev. C 79 performance degr adation 31 performan ce highlights 8 physical damag e 3 3 physical interface 65 description 65 physical specifications 21 PI 51 , 52 pin des.
80 Cheetah 15K. 7 FC Product M anual, Rev. C security partitions 37 Security Protocol In 37 Security Protocol Out 37 Seek command 55 seek error defined 15 rate 14 Seek extended com m an d 5 6 seek per.
Cheetah 15K.7 FC Product Manual, Rev. C 81 Write buffer comma n d 57 Write combined header and da ta mode (0) 57 Write command 55 Write data m ode (2) 57 Write extended com m an d 5 6 Write long comma.
82 Cheetah 15K. 7 FC Product M anual, Rev. C.
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Seagate T echnology LLC 920 Disc Drive, Scotts V alley , California 95066-4544, USA Publication Number: 1005 16225, Rev . C.
Een belangrijk punt na aankoop van elk apparaat Seagate ST3600057FC (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 Seagate ST3600057FC 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 Seagate ST3600057FC vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding Seagate ST3600057FC leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over Seagate ST3600057FC krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van Seagate ST3600057FC 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 Seagate ST3600057FC kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met Seagate ST3600057FC . 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.
