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Product Manual Barracuda ® ES.2 SAS 100496298 Rev . E April 2009 ST31000640SS ST3750630SS ST3500620SS.
Copyright © 2008-2009 Se agate T echnology LL C. All rights reserv ed. Printed in U.S.A. Publication number: 1004 96298, Rev . E, April 2009 Seagate, Seagate T echno logy and the W a ve logo ar e registered trademarks of Seagate T echnology LLC in the United S tates and/or other co untries.
Barracuda ES.2 SAS Prod uct Manual, Rev. E i Content s 1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Standards, compliance a nd reference documents .
ii Barracuda ES.2 SAS Pr oduct Ma nual, Rev. E 6.4.2 Relative humidit y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 6.4.3 Effective altitude (sea level) . . . . . . . . . . . . . . . . . . . . . .
Barracuda ES.2 SAS Prod uct Manual, Rev. E 1 1.0 Scope This manual describes Seagate T echnology ® LLC, Barracuda ® ES.2 SAS (Serial Att ached SCSI) disk drives. Barracuda ES.2 drives support the SAS Pr otocol specifications to the extent described in this manual.
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Barracuda ES.2 SAS Prod uct Manual, Rev. E 3 2.0 S t andards, compliance and reference document s The drive has been developed as a syst em peripheral to the highest standa rds of design and construction.
4 Barracuda ES.2 SAS Product Manual, Rev. E 2.2 Compliance 2.2.1 Elec tromagnetic compliance Seagate uses an in dependent laborator y to confirm comp liance with the directives/st andards for CE Marking and C-T ick Marking. The drive was tested in a r epresen t ative system for typical applications.
Barracuda ES.2 SAS Prod uct Manual, Rev. E 5 2.3 Reference document s SCSI Commands Reference Manual Seagate par t number: 100293068 SAS Interface Manua l Seagate part nu mber: 100293071 Applicable ANSI SAS documents SFF-8323 3.
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Barracuda ES.2 SAS Prod uct Manual, Rev. E 7 3.0 General description Barracuda ES.2 drives combine T unneling Magnetoresis tive (TMR) heads and a Serial Attached SCSI (SAS) interface to pr ovide high .
8 Barracuda ES.2 SAS Product Manual, Rev. E 3.1 St andard features Barracuda ES.2 SAS drives have the following st andard features: • Perpendicu lar recordin g technology • 1.
Barracuda ES.2 SAS Prod uct Manual, Rev. E 9 3.5 Formatted cap acities S tandard OEM models are for matted to 512 bytes pe r blo ck. T he block size is select able at format time and must be a multiple of 4 bytes.
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Barracuda ES.2 SAS Produc t Manual, Rev. E 11 4.0 Performance characteristics This section provides detaile d information concerning perfor mance-rela ted characte ristics and features of Bar- racuda ES.
12 Barracuda ES.2 SAS Pr oduct Ma nual, Rev. E 4.2.2 Format command exe cution time (m inutes) ST31000640SS ST37506 30SS ST3500620SS Maximum (with verify) 400 300 200 Maximum (without verify) 200 150 .
Barracuda ES.2 SAS Produc t Manual, Rev. E 13 4.4 Prefetch/multi-segmented cache control The drive provides a prefetch (read look-a head) and mu lti-seg mented cache control al gorithms that in many cases can enhance system performance. Cache refers to the drive buf fer stora ge space when it is used in cache operations.
14 Barracuda ES.2 SAS Pr oduct M anual, Rev. E If read caching is enabled (RCD=0), th en data written to t he med ium is reta ined in the cache to be m ade avail- able for fu ture read cache hit s. The sam e buf fer sp ace and segment ation is used a s set up for read functions.
Barracuda ES.2 SAS Produc t Manual, Rev. E 15 5.0 Reliability specifications The following reliability specifications assume correct host and drive operational interfac e, including all inter- face timings, power supply volt ages, environment al requirements and drive mou nting const raints.
16 Barracuda ES.2 SAS Pr oduct M anual, Rev. E 5.1.3 Seek errors A seek error is defined as a failure of the drive to posi tion the heads to the addr essed track. After detecting an initial seek error , the drive automatically perfor ms an er ror recovery proce ss.
Barracuda ES.2 SAS Produc t Manual, Rev. E 17 5.2.4 S.M.A.R.T . S.M.A.R.T . is an acronym for Self-Monitoring Analysis and Re porting T e chnology . This technology is intended to recognize conditions.
18 Barracuda ES.2 SAS Pr oduct M anual, Rev. E Error rate is the number of er rors per operation . The algori thm that S.M.A.R.T . uses to record rates of error is to set thresholds for the number of errors and their interval .
Barracuda ES.2 SAS Produc t Manual, Rev. E 19 The most thorough op tion is the extended test tha t perf orms various tests on the drive a nd scans every lo gical block address (LBA) of the drive.
20 Barracuda ES.2 SAS Pr oduct M anual, Rev. E Each test consists of three segment s: an electrical te st segment, a servo test segmen t, and a re ad/verify s can segment. Short test (Function Cod e: 001b) The purpose of the sh ort test is to pr ovide a time-limited test that test s as much of the drive as possible within 120 seconds.
Barracuda ES.2 SAS Produc t Manual, Rev. E 21 procedure. Seagate will pay for transpo rting the repair or replacement item to the customer . For more detailed warranty information, refer to the st andard ter ms and conditions of pu rchase for Seagate pr oducts on your pur- chase docume ntation.
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Barracuda ES.2 SAS Produc t Manual, Rev. E 23 6.0 Physical/electrical specifications This section provides information relating to the physical and electrical char acteristics of the drive. 6.1 AC power requirement s None. 6.2 DC power requirement s The volt age and current requireme nts for a single drive are shown below .
24 Barracuda ES.2 SAS Pr oduct M anual, Rev. E [1] Measured with average reading DC ammeter or equivalent sampling scope. Inst ant aneous +12V current peaks will exceed these values. Power supply at nominal volt a ge. N (number of driv es tested) = 6, 35 Degrees C ambient .
Barracuda ES.2 SAS Produc t Manual, Rev. E 25 [4] This condition occurs after OOB and S peed Negotiat ion co mpletes but before the drive has received the Notify S pinup primitive. [5] See paragrap h 6.2.1, "Cond ucted noise immunity ." S pecified volt age tolerance includ es ripple, noise, and transient response.
26 Barracuda ES.2 SAS Pr oduct Ma nual, Rev. E Figure 2. T ypical ST31 000640SS driv e +5V an d +12V current profiles Figure 3. T ypical ST375063 0SS driv e +5V and +12V current profiles.
Barracuda ES.2 SAS Produc t Manual, Rev. E 27 Figure 4. T y pical ST3500620SS drive +5V and +12V cu rrent profiles 6.3 Power dissip ation T ypical power dissipation und er idle conditions in 3Gb operatio n is 8.
28 Barracuda ES.2 SAS Pr oduct Ma nual, Rev. E Figure 5. ST31000640SS (3 Gbit) DC cu rrent an d power v s. input/output operations per second Figure 6. ST3750630SS (3 Gbit) DC curren t and power vs. input/output operations per second Figure 7. ST3500620SS (3 Gbit) DC curren t and power vs.
Barracuda ES.2 SAS Produc t Manual, Rev. E 29 6.4 Environment al limit s T emperature and humidity values experienced by the driv e must be such that conde ns ation does not occur on any drive part. Altitude and atmospheric p ressure specif icat ions are referenced to a st andard day at 58.
30 Barracuda ES.2 SAS Pr oduct M anual, Rev. E 6.4.2 Relative humidity The values below assume that no condensation on the drive occu rs. a. Operating 5% to 95% non-condensing relative humidity with a maximum gradient of 20% per hour . b. Non-operatin g 5% to 95% non-condensing relative humidity .
Barracuda ES.2 SAS Produc t Manual, Rev. E 31 d. Packaged Disk drives shipped as loose load (not p alletized) general freight will be packaged to withs tand drops from heights as define d in the table below . For additional deta ils refer to Seagate specifications 30190-001 (under 100 lbs/45 kg) or 30191-00 1 (over 100 lbs/45 Kg) .
32 Barracuda ES.2 SAS Pr oduct M anual, Rev. E 6.4.4.2 Vibration a. Operating—normal The drive as ins talled for normal op eration, shall comply with the complete sp ecified performance while subjected to continuous vi bration not excee ding 5 - 22 Hz 0.
Barracuda ES.2 SAS Produc t Manual, Rev. E 33 exposed to an ambient relative humid ity greater t han 95%. Materials used in cabinet fabrication, such as vulca- nized rubber , that can outgas corrosive compounds should be minimized or eliminat ed.
34 Barracuda ES.2 SAS Pr oduct Ma nual, Rev. E 6.5 Mechanical specifications Refer to Figure 9 for det ailed physical dim ensions. See Section 8.3 , “Drive mounting. ” Figure 9. Physical d imensions Height: 1.028 inches 26.1 1 mm Width: 4.010 inches 101.
Barracuda ES.2 SAS Produc t Manual, Rev. E 35 7.0 Defect and erro r management Seagate continues to use innova tive technologies to manage defect s and errors. The se technologies are designed to increase dat a integrity , perform drive self-ma intenance, and validat e proper drive operation.
36 Barracuda ES.2 SAS Pr oduct M anual, Rev. E The drive firmware er ror recovery algorithms con sists of 1 1 levels for read recoveries and five levels for write. Each level may consist of multiple st eps, where a step is defined as a re cove ry function involving a single re- read or re-write atte mpt.
Barracuda ES.2 SAS Produc t Manual, Rev. E 37 7.3 SAS system errors Information on the reporting of oper ational errors or faults across the interface is given in the SAS Interface Manual . The SSP Response r eturns information to the host about numerous kinds of errors or faults.
38 Barracuda ES.2 SAS Pr oduct M anual, Rev. E 7.6 Deferred Auto-Reallocation Deferred Auto -Reallocat ion (D AR) simplifies reallocation algorithms at the system level by allowing the drive to reallocate unreadable locations on a subsequent writ e command.
Barracuda ES.2 SAS Produc t Manual, Rev. E 39 8.0 Inst allation Barracuda ES.2 disk drive inst allation is a plug-and-play pro cess. There are n o jumpers, switches, or term ina- tors on the drive. SAS drives are designed to be used in a host system that provides a S AS-compatible backplane with bays designed to accommo date the drive.
40 Barracuda ES.2 SAS Pr oduct M anual, Rev. E 8.2 Cooling The host enclosure must dissip ate heat from the drive. Y ou shou ld confirm that the host encl osure is designed to ensure that the drive op erates within the temper atur e measureme nt guidelines described in Section 6.
Barracuda ES.2 SAS Produc t Manual, Rev. E 41 8.3 Drive mounting Mount the drive usin g the bottom or side mounting holes . If you mount the drive using th e bottom holes, ensure that you do not physica lly distort the drive by at tempting to mount it on a stiff, no n-flat surface.
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Barracuda ES.2 SAS Produc t Manual, Rev. E 43 9.0 Interface requirements This section partially describes th e interface requir ements as implemented on Barracuda ES.2 drives . Addi- tional information is provided in the SAS Interface Manual (p art numbe r 100293071) .
44 Barracuda ES.2 SAS Pr oduct M anual, Rev. E 9.2 Dual port support Barracuda ES.2 SAS drives have two in dependent ports. These port s may be connected in the same or differ- ent SCSI domains. Each drive port has a uni que SAS address. The two port s run at the same link rate .
Barracuda ES.2 SAS Produc t Manual, Rev. E 45 9.3 SCSI commands supported T a ble 8 lists the SCSI command s supported by Barracuda ES.2 dr ives. T able 8: Commands supported by Barrac uda ES.
46 Barracuda ES.2 SAS Pr oduct M anual, Rev. E Non-medium Error p age (06 h) Y Pages Supported list (00h) Y Read Error Counter page (03h) Y Read Reve rse Error Coun ter page (04h) N Self-test Results .
Barracuda ES.2 SAS Produc t Manual, Rev. E 47 Reassign Bl ocks 07h Y Receive Diagnostic Results 1Ch Y Supported Diagnostics pages (00h ) Y T ransla te pa ge (40h) Y Release 17h Y Release (10) 57h Y Re.
48 Barracuda ES.2 SAS Pr oduct M anual, Rev. E [1] Barracuda ES.2 drives can format to 51 2, 520, 524, or 528 bytes per logical block. [2] Wa r n i n g . Power loss during flash prog ramming can result in firmware co rruption. This usually makes the drive inoperable.
Barracuda ES.2 SAS Produc t Manual, Rev. E 49 9.3.1 Inquir y data T able 9 lists the Inquiry comm and dat a that the drive should return to the in itiator per th e format given in the SAS Interfac e Manual .
50 Barracuda ES.2 SAS Pr oduct M anual, Rev. E On standard OEM drives, the saved va lues are taken from the default values list a nd stored into th e saved values storage location on the media prior to shipping. 3. Current valu es Current values are volatile values being used by the drive to control it s operation.
Barracuda ES.2 SAS Produc t Manual, Rev. E 51 9.3.2.1 ST3100064 0SS Mode S ense data MODE DATA HEADER: 01 2e 00 10 00 00 00 08 BLOCK DESCRIPTOR: 74 70 6d b0 00 00 02 00 MODE PAGES: DEF 81 0a c0 0b ff .
52 Barracuda ES.2 SAS Pr oduct M anual, Rev. E 9.3.2.2 ST3750630SS Mode Sense da t a MODE DATA HEADER: 01 2e 00 10 00 00 00 08 BLOCK DESCRIPTOR: 57 54 66 f0 00 00 02 00 MODE PAGES: DEF 81 0a c0 0b ff .
Barracuda ES.2 SAS Produc t Manual, Rev. E 53 9.3.2.3 ST3500620SS Mode Sense da t a MODE DATA HEADER: 01 2e 00 10 00 00 00 08 BLOCK DESCRIPTOR: 3a 38 60 30 00 00 02 00 MODE PAGES: DEF 81 0a c0 0b ff 0.
54 Barracuda ES.2 SAS Pr oduct M anual, Rev. E 9.4 Miscellaneous operating features and conditions T a ble 10 lists various fe atures and conditions. A “Y” in th e support column indica tes t he feature or condition is supported. An “N” in the support column indicates the feat ure or condition is not supported.
Barracuda ES.2 SAS Produc t Manual, Rev. E 55 9.4.1 SAS physical interfac e Figure 12 shows the location of the SAS device c onnector J1. Figures 13 and 14 provide the dimensions of the SAS device. Details of the physical, electrical, an d logical ch aracteristics are provided wi thin this section.
56 Barracuda ES.2 SAS Pr oduct M anual, Rev. E Figure 13. SAS connector d imensions C OF DATUM B L 5.08 1.27 (6X) 1.27 (14X) 15.875 0.35MIN 15.875 33.43 0.05 B 4.90 0.08 0.84 0.05 (22X) 0.15 B P15 P1 S7 S1 SEE Detail1 0.30 0.05 (4X) 4.00 0.08 0.15 D 0.
Barracuda ES.2 SAS Produc t Manual, Rev. E 57 Figure 14. SAS connector d imensions 9.4.2 Physical characteristic s This section defines phys ical interface co nnector . 9.4.3 Connector requirement s Contact you r preferred conn ector manuf actur er for mating p art info rmation.
58 Barracuda ES.2 SAS Pr oduct Ma nual, Rev. E 9.4.4 Electrical d escription SAS drives use the device connector for: • DC power • SAS interface • Activity LED This connector is des igned to either plu g d irectly into a backp anel or accept cables.
Barracuda ES.2 SAS Produc t Manual, Rev. E 59 9.4.6 SAS transmitters an d receivers A typical SAS differential copper transm itter and receiver p air is shown in Figure 15. The rece iver is AC cou- pling to eliminate ground shif t noise. Figure 15. SAS transmitters and rec eivers 9.
60 Barracuda ES.2 SAS Pr oduct M anual, Rev. E The Ready LED Out signal is designed to pu ll down t he cath ode of an LED. T he anode is att ached to th e proper +3. 3 volt supply th rough an appropriat e current lim iting resistor . The LED an d the curren t limiting resis - tor are ext ernal to th e drive.
Barracuda ES.2 SAS Produc t Manual, Rev. E 61 9.5.2.1. 2 Receive ey e mask Figure 16 describes the receive eye mask. Th is eye mask applies to jitter af ter the ap plication of a single pole high-p ass frequency-weighting function that progressively attenu ates jitter at 20 dB/decade be low a frequency of ((bit r ate) / 1.
62 Barracuda ES.2 SAS Pr oduct M anual, Rev. E The leading and trailing edge sl opes of figure 16 shall be preserved. As a result th e amplitude value of Z1 is less than that given in t able 17 and Z1.
Barracuda ES.2 SAS Produc t Manual, Rev. E 63 9.5.2.2 T ransmitter signal characte ristics T able 16 spe cifies the s ignal requ irements at the t ran smitter end of a TxRx connec tion as measured in to the zero-length test load. All specifications are base d on dif ferential measurement s.
64 Barracuda ES.2 SAS Pr oduct M anual, Rev. E 9.5.2.3 Receiver si gnal charact eristics T a ble 17 defin es the compliance point re quirement s of the signal at the receiver en d of a TxRx connection as measured into the test loads specified in fig ure 19 and figure 20.
Barracuda ES.2 SAS Produc t Manual, Rev. E 65 9.5.2.3.2 Receiver jitte r tolerance T a ble 19 defines the amount of jitte r the receiver shall tolerate. 9.5.2.3.3 Compliant jitter test p attern (CJTP A T) The CJTP A T within a compliant protocol frame is used for all jitter testin g unless otherwise specifi ed.
66 Barracuda ES.2 SAS Pr oduct M anual, Rev. E 9.5.2.4 Electrical TxRx con nections TxRx connec tions may be d ivided into T xRx connecti on segment s. In a single TxRx connection individual TxRx connection segment s may be form ed from dif fering media and mater ials, includin g traces on pr inted wir- ing boards and optical fibers.
Barracuda ES.2 SAS Produc t Manual, Rev. E 67 A combination of a zero-leng th test load and the transm itter compliance transfer functio n (TCTF) test load methodology is used for the specificat ion of transmitter charac teristics. This methodology specifies the trans- mitter signal at the test point s on the required test lo ads.
68 Barracuda ES.2 SAS Pr oduct M anual, Rev. E Figure 20 shows the zero-length test load . Figure 20. Zero-length test l oad Figure 21 shows an ISI loss example at 3.0 Gbps. Figure 21. ISI loss example at 3.0 Gbp s Figure 22 shows an ISI loss example at 1.
Barracuda ES.2 SAS Produc t Manual, Rev. E 69 9.5.2.5 Receiver char acteristics The drive receiver is A.C. coupled. The receive networ k terminates the TxRx connection by a 100 ohm equiva- lent impedance as specified in table 20.
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Barracuda ES.2 SAS Produc t Manual, Rev. E 71 10.0 Seagate T echnolo gy support services Internet For information regarding Se agate produc ts and services, visit www . sea gate.com . Worldwide support is available 24 hours da ily by email for your questions.
72 Barracuda ES.2 SAS Pr oduct M anual, Rev. E Customer Service Operations W arranty Servi ce Seagate of fers worldwide customer support for Seagate product s. Seagate distributor s, OEMs and othe r direct customers should contact their Seagate Customer Ser v ice Operat ions (CSO) repr esentative for warr anty- related issues.
Barracuda ES.2 SAS Produc t Manual, Rev. E 73 Index Numerics 12 volt pins 59 5 volt pins 59 A abort task set f unction 43 AC coupling 59 AC power requirements 23 ACA active status 54 ACA active, fault.
74 Barracuda ES.2 SAS Pr oduct M anual, Rev. E requirements 15 environmenta l control 32 error management 35 rates 15 errors 35 EU RoHS di recti ve 33 F FCC rules and regulation s 3 features 8 interfa.
Barracuda ES.2 SAS Produc t Manual, Rev. E 75 audible 3 noise immunity 25 non-operat ing 30 , 32 temperatur e 29 non-operat ing vibration 32 O office enviro nment 32 operating 30 , 32 option selection.
76 Barracuda ES.2 SAS Pr oduct M anual, Rev. E operation 54 system chassis 41 T task management functions 43 Abort task set 43 Clear ACA 43 Clear task set 43 terminate t ask 43 task management respons.
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Seagate T e chnology LLC 920 Disc Drive, Scotts V alley, California 95066 -4544, USA Publication Number: 1004962 98, Rev . E, Printed in USA.
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