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Seagate Cheetah ST3450757SS hard disk drive

1. DRIVE CENTER LINE 26 11 MAX I gt 1 028 MAX 2X 20 14 i i 2X 793 1 E z M i 24 00 6 35 250 Le _ 6X 6 32UNC 2B Z 945 THRU Y 422 X 90 d 166 X 90 2x2845 __ 036 2X 1 120 AE Z x Y 2X 70 05 2X 2 758 2014 122 00 4 803 UNITS OF MEASURE mm inches mu 2X 130 05 2X 5 120 Y A Y 146 99 MAX 5 787 MAX 131 17 5 164 y 4X 6 32UNC 2B 85 60 3 370 Y 4 57 MIN BLIND 18 MIN BLIND riz 41 15 1 620 VV 4 22 X 909 166 X 90 c m 0 36 793 X X 2X 29 21 amp b pur ca la 2X 1 150 l l ti i 101 60 25 3 17 125 4 000 010 50 80 cj 2 000 2X 100 13 i 2X 3 942 20 68 814 g 98 42 P el AAA MES gt 3 875 4 E a z a a x TE 4 ET 33 40 1 315 _ I 0 76 A 9 6 030 12 X Y I 0 13 So AN oos X CONNECTOR 36 37 did d 4008 z TAB CENTERLINE 1 432 1884 015 0 99 MEAR 039 7 010 Tp oat Ty 016 Figure 9 Physical dimensions Cheetah 15K 7 SAS Product Manual Rev B 7 0 About self encrypting drives Self encrypti
2. State Test condition Output voltage LED off high 0 V VOH 33 6 V 100 uA lt lop lt 100 pA LED on low loL 15 mA 0 Vo 3 225 V 10 5 2 Differential signals The drive SAS differential signals comply with the intra enclosure internal connector requirements of the SAS standard Table 26 defines the general interface characteristics Table 26 General interface characteristics Characteristic Units 1 5 Gbps 3 0 Gbps 6 0 Gbps Bit rate nominal Mbaud 1 500 3 000 6 000 Unit interval UN nominal ps 666 6 333 3 166 6 Impedance nominal differential ohm 100 100 100 Transmitter transients maximum V 1 2 1 2 1 2 Receiver transients maximum V t1 2 t1 2 t1 2 10 6 SAS 2 Specification compliance Seagate SAS 2 drives are entirely compatible with the latest SAS 2 Specification T10 1760 D Revision 16 The most important characteristic of the SAS 2 drive at 6 Gbps is that the receiver is capable of adapting the equalizer to optimize the receive margins The SAS 2 drive has two types of equalizers 1 A Decision Feedback Equalizer DFE which utilizes the standard SAS 2 training pattern transmitted dur ing the SNW 3 training gap The DFE circuit can derive an optimal equalization characteristic to compen sate for many of the receive losses in the system 2 AFeed Forward Equalizer FFE optimized to provide balanced receive margins over a range of channels bounded by the best and worst case
3. 0 0 000 ccc ns 40 Installations lt 2 eek ir m trei pb d uec RAE Ric aa 41 9 1 Drive Orientation a ERE ERR ER EE ERR 41 9 2 GOOG HP DEL E 41 9 3 Drive mounting met dor canere e TRE IUE quate A 42 9 4 Grouping secr cre ec Pe ee Bh ea ER eee a oe ee ae oo 42 Interface requireMentS ooooooccon eee RII II Ihn 43 10 1 SAS features iia a cathe AERARII kee Gel av NISUS EG 43 10 1 1 task management functions 200 nen c eee 43 10 1 2 task management responses llli sese 43 10 2 Dualiport suppOrt 2e brad desees Adele dae 44 10 3 SCSI commands supported nanasa ananake eee 44 10 31 Inquiry data coord corras rr bed dates PA ao Ea POE 48 10 3 2 Mode Sense data o o oo ocooooco tee 49 10 4 Miscellaneous operating features and conditions 0 0 00 eee 55 104 1 SAS physical interface 2 tee 56 10 4 2 Physical characteristics 0 0 cee 58 10 43 Connector requirements llli 58 10 44 Electrical description llli ele 59 10 45 Pin descriptions 0 0 0 59 10 4 6 SAS transmitters and receivers 0000000 60 10 4 47 POWER ze or mede IM eR Eu ds S ER E EY 60 10 5 Signal characteriStiCS oooooooonorrrrerar eh rh 60 10 5 1 Ready LED Out rena tapii aona sn 60 Cheetah 15K 7 SAS Product Manual Rev B 10 5 2 Differential signals 10 6 SAS 2 Specification compliance 10 7 A Additional information 11 0 Seagate Tech
4. DPRY bit supported DCRT bit supported STPF bit supported IP bit supported DSP bit supported IMMED bit supported VS vendor specific Inquiry 12h Date Code page C1h Device Behavior page C3h Firmware Numbers page COh Implemented Operating Def page 81h Jumper Settings page C2h Supported Vital Product Data page 00h Unit Serial Number page 80h Lock unlock cache 36h Log Select 4Ch PCR bit DU bit DS bit lt x zi lt x lt x z x x xxx xxx z lt xxx lt x zixl z z zz 44 Cheetah 15K 7 SAS Product Manual Rev B Table 19 Commands supported by Cheetah 15K 6 SAS family drives continued Command name Command code Supported TSD bit ETC bit TMC bit LP bit Log Sense 4Dh Application Client Log page OFh Buffer Over run Under run page 01h Cache Statistics page 37h Factory Log page 3Eh Last n Deferred Errors or Asynchronous Events page OBh Last n Error Events page 07h Non medium Error page 06h Pages Supported list 00h Read Error Counter page 03h Read Reverse Error Counter page 04h Self test Results page 10h Background Medium Scan page 15h Start stop Cycle Counter page OEh Temperature page 0Dh Verify Error Counter page 05h Write error counter page 02h Mode S
5. 81 0a ff ff 00 00 00 00 ff 00 ff ff 82 0e 00 00 00 00 00 00 00 00 01 3a 00 00 82 0e 00 00 00 00 00 00 00 00 ff ff 00 00 83 16 bb d0 00 00 00 00 03 80 04 c4 02 00 83 16 00 00 00 00 00 00 00 00 00 00 00 00 84 16 01 8a 9a 04 00 00 00 00 00 00 00 00 84 16 00 00 00 00 00 00 00 00 00 00 00 00 87 0a 00 Ob ff 00 00 00 00 00 ff ff 87 0a Of ff 00 00 00 00 00 00 ff ff 88 12 14 00 ff ff 00 00 ff ff ff ff 80 20 88 12 a5 00 00 00 ff ff ff ff 00 00 20 00 8a 0a 02 00 00 00 00 00 00 00 0c 80 8a 0a 03 0 00 00 00 00 00 00 00 00 18 06 06 00 00 00 00 00 18 06 00 00 00 00 00 00 99 0e 06 00 07 d0 00 00 00 00 00 00 00 00 d9 01 00 64 00 06 00 02 00 00 00 00 14 0a 0e 00 50 00 c5 00 00 5f 00 80 00 00 00 01 00 00 00 00 00 00 00 88 aa 00 00 00 00 00 00 00 00 00 00 01 00 00 14 2a 0e 00 50 00 c5 00 00 5 66 d6 50 00 00 00 80 00 00 01 00 00 88 aa 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ST3300657SS and ST3300557SS Mode Sense data 00 0 00 0 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 99 0e 10 00 ff ff ff ff 00 00 00 00 00 00 00 00 co 00 00 00 00 00 00 00 00 00 00 00 4c 00 00 00 00 00 40 00 00 00 3a a7 00 00 CHG d9 0100 64 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 DEF CHG DEF 00 CHG 00 00 00 00 00 00 00 00 00 00 00 00 0 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
6. 12 seek performance characteristics 8 seek time average typical 8 full stroke typical 8 single track typical 8 segmented caching 55 self encrypting drives 34 Self Monitoring Analysis and Reporting Technology 7 14 Serial Attached SCSI SAS Interface Manual 1 shielding 2 shipping 18 shipping container 29 shock 29 30 and vibration 29 shock mount 42 SID 34 signal characteristics 60 single unit shipping pack kit 7 SMART 7 14 SMP 1 in Mode Select command 55 SNW 3 training gap 61 spindle brake 6 standards 2 start stop time 9 Sulfur 32 support services 62 surface stiffness allowable for non flat surface 42 switches 41 synchronized spindle operation 55 System chassis 42 T task management functions 43 Abort task set 43 Clear ACA 43 Clear task set 43 terminate task 43 task management response codes 43 Function complete 00 43 Function not supported 05 43 Function reject 04 43 task set full status 56 TCG 34 technical support services 62 temperature 28 41 limits 28 68 non operating 29 regulation 2 See also cooling terminate task function 43 terminators 41 tracks per inch 8 transmitters 60 transporting the drive 18 Trusted Computing Group 34 U unformatted 7 Unrecoverable Errors 12 unrecovered media data 12 V vibration 29 31 32 W warranty 18 Z zero latency read 55 zone bit recording ZBR 6 Cheetah 15K 7 SAS Product Manual Rev B Seagate Seagate Technology LLC 920 Disc Dri
7. 17h Y Release 10 57h Y Request Sense 03h Y Actual Retry Count bytes Y Extended Sense Y Field Pointer bytes Y Reserve 16h Y 3rd Party Reserve Y Extent Reservation N Reserve 10 56h Y 3rd Party Reserve Y Extent Reservation N Rezero Unit 01h Y Search Data Equal 31h N Search Data High 30h N Search Data Low 32h N Seek OBh Y Seek Extended 2Bh Y Send Diagnostics 1Dh Y Supported Diagnostics pages 00h Y Translate page 40h Y Set Limits 33h N Start Unit Stop Unit spindle ceases rotating 1Bh Y Synchronize Cache 35h Y 46 Cheetah 15K 7 SAS Product Manual Rev B Table 19 Commands supported by Cheetah 15K 6 SAS family drives continued Command name Command code Supported Test Unit Ready 00h Y Verify 2Fh Y BYTCHK bit Y Write OAh Y Write and Verify 2Eh Y DPO bit Y Write Buffer modes 0 2 supported 3Bh Y Firmware Download option Y modes 5 7 Ah and Bh supported 3 Write Extended 2Ah Y DPO bit Y FUA bit Y Write Long 3Fh Y Write Same 4th Y PBdata N LBdata N XDRead 52h N XDWrite 50h N XPWrite 51h N 1 Cheetah 15K 7 drives can format to 512 520 524 or 528 bytes per logical block 2 Warning Power loss during flash programming can result in firmware corruption This usually makes the drive inoperable 3 Reference Mode Sense command 1Ah for mode pages supported 4 Y Yes Command is supported N No Command is not
8. 30 package test specification 4 packaged 30 parameter rounding 55 password 34 35 passwords 34 PCBA 42 peak bits per inch 8 peak operating current 20 21 22 peak to peak measurements 23 performance characteristics detailed 8 general 9 performance degradation 30 performance highlights 6 physical damage 32 Cheetah 15K 7 SAS Product Manual Rev B physical dimensions 33 physical interface 56 physical specifications 19 pin descriptions 59 power 60 dissipation 26 requirements AC 19 requirements DC 19 sequencing 23 power distribution 2 PowerCycle 35 prefetch multi segmented cache control 10 preventive maintenance 12 protection of data at rest 34 Q queue tagging 55 R radio interference regulations 2 Random number generator 35 RCD bit 10 read error rates 12 37 read write data heads 8 receivers 60 recommended mounting 31 Recoverable Errors 12 recovered media data 12 reference documents 4 relative humidity 29 reliability 7 specifications 12 reliability and service 13 repair and return information 18 reporting actual retry count 55 reservation conflict status 56 resonance 29 return information 18 RNG 35 rotation speed 8 S safety 2 SAS interface 59 physical interface 56 task management functions 43 SAS documents 4 SAS Interface Manual 2 4 SCSI interface commands supported 44 Secure ID 34 security partitions 34 67 Security Protocol In 34 Security Protocol Out 34 seek error defined 13 rate
9. CHG 88 12 a5 00 00 00 ff ff f DEF 8a 0a 02 00 00 00 00 00 0 CHG 8a Oa 03 0 00 00 00 00 0 DEF 18 06 06 00 00 00 00 00 CHG 18 06 00 00 00 00 00 00 DEF 99 06 06 00 07 dO 00 00 CHG 99 06 10 00 ff ff ff ff 5 00 f 00 0 00 0 00 3 80 0 00 0 00 0 00 0 00 0 00 f ff f EE 0 00 0 00 ff ff 01 ff 04 00 00 00 EE ff ff 00 19 00 FE ff 3a tf c4 00 00 00 ff ff ff 00 00 00 00 00 02 00 00 00 80 20 oo C3 563 o gt para 20 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 ST3600057SS and ST3600957SS Mode Sense data 00 00 00 00 00 00 cO 00 00 00 00 00 00 00 00 00 00 00 4c 00 00 00 00 00 40 00 00 00 3a a7 00 00 00 00 00 00 00 00 00 00 DEF d9 01 00 64 00 06 00 02 00 00 00 00 10 29 0e 00 50 00 c5 00 00 68 64 a9 00 88 aa 00 00 00 00 00 00 00 00 00 00 00 00 68 64 aa 50 06 05 b0 00 29 2d d4 06 00 00 00 29 2d d5 07 00 00 00 00 00 00 00 10 29 0e 00 50 00 c5 00 00 aa 00 00 00 00 00 00 00 00 00 00 00 00 00 00 CHG d9 01 00 64 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0 00 00 00 00 00 00 00 00 00 DEF 59 02 00 Oc 00 06 03 e8 O CHG 59 02 00 Oc 00 00 ff ff O 1 00 10 80 ac 0
10. Rev B 37 Table 16 equates the read and write retry count with the maximum possible recovery time for read and write recovery of individual LBAs The times given do nat include time taken to perform reallocations Reallocations are performed when the ARRE bit for reads or AWRE bit for writes is one the RC bit is zero and the recov ery time limit for the command has not yet been met Time needed to perform reallocation is not counted against the recovery time limit When the RC bit is one reallocations are disabled even if the ARRE or AWRE bits are one The drive will still perform data recovery actions within the limits defined by the Read Retry Count Write Retry Count and Recovery Time Limit parameters However the drive does not report any unrecovered errors 38 Cheetah 15K 7 SAS Product Manual Rev B Table 16 Read and write retry count maximum recovery times 1 Read retry Maximum recovery time per LBA Write retry Maximum recovery time per LBA count cumulative msec count cumulative msec 0 51 87 0 23 94 1 59 85 1 35 91 2 203 49 2 39 9 3 231 42 3 51 87 4 295 26 4 79 8 5 327 18 5 default 107 73 6 359 10 7 446 88 8 538 65 9 570 57 10 598 50 11 default 1 534 97 1 These values are subject to change Setting these retry counts to a value below the default setting could result in degradation of the unrecov ered error rate which may exceed the value given
11. SAS Product Manual Rev B 0 80 6X gt 5 92 7 62 4 65 T 7 D M I 0 52 0 08 x 45 i 0 45 0 08 7X HEBE elo 10 E 2 00 3X m P 42 73 REF i 41 13 0 15 x 5 0 20B 0 30 0 05 20 E E C CT A ep B ps 4 00 0 08 a0 FH OF DATUM D 0 15D Y 5 1 a c y EN a A R0 30 0 08 4X 0 30 0 05 4 B U C SEE Detaill 33 43 0 05 5 n 15 875 P a Ly 1 2 14X 27 60 RH m 15 08 ro om 0 05 22X 0 15 B 4 4 90 0 08 0 35MIN la S1 S7 OF DATUM B Figure 12 SAS connector dimensions Cheetah 15K 7 SAS Product Manual Rev B 57 Detail A Bip Ped S8 0 30 0 05 x 45 5X boo 2 25 0 05
12. Seagate for service 5 2 6 1 DST failure definition The drive will present a diagnostic failed condition through the self tests results value of the diagnostic log page if a functional failure is encountered during DST The channel and servo parameters are not modified to test the drive more stringently and the number of retries are not reduced All retries and recovery processes are enabled during the test If data is recoverable no failure condition will be reported regardless of the number of retries required to recover the data The following conditions are considered DST failure conditions Seek error after retries are exhausted Track follow error after retries are exhausted Read error after retries are exhausted Write error after retries are exhausted Recovered errors will not be reported as diagnostic failures 5 2 6 2 Implementation This section provides all of the information necessary to implement the DST function on this drive 5 2 6 2 1 State of the drive prior to testing The drive must be in a ready state before issuing the Send Diagnostic command There are multiple reasons why a drive may not be ready some of which are valid conditions and not errors For example a drive may be in process of doing a format or another DST It is the responsibility of the host application to determine the not ready cause While not technically part of DST a Not Ready condition also qualifies the drive to be returned to
13. Shock and vibration 0 000 cee eee 29 6 4 5 ACOUSIICS ue uiuos s e d dt do A Gol hy E ek 32 6 4 6 Air cleanliness ooooooooo n 32 6 4 7 Corrosive environment ooo 32 6 4 8 RoHS compliance statement 32 6 4 9 Electromagnetic susceptibility llle 33 6 5 Mechanical specifications 00 00 33 About self encrypting AriVeS ooooocoocoonno en 34 7 1 Data encryptlor save saccades E ra 34 7 2 Controlled access oe cR LA ERES pet eb ETUR a der a e ee 34 7 2 1 Admin SP s uan beheben ve E eda 34 7 2 2 LOCKIN SP ce MI A Tae A 34 7 2 3 Default password un ene de cna tuba Qe B aM S Ro E ERR 35 7 3 Random number generator RNG ooocccccccc eh 35 7 4 Drive dlockingzssus oiii ete RI Miata ed SERA eet TEGERE RE T 35 7 5 Databands z sos taras aaa tira Aa bre REATO sewed 35 7 6 Cryptographic erases entere e a duo s rne Pa oes donas 35 7 7 Authenticated firmware download 0000 0c cece eee ete eens 35 7 8 Power requirements 36 7 9 Supported commands 00 cece teens 36 Defect and error management 0 cece eee eee n n nnn 37 8 1 Drive internal defects errors 2 2 00 ce ete eee 37 8 2 Drive error recovery procedures sss 37 8 3 SAS system etmors ones a ia pated aid 39 8 4 Background Media Scan isse 39 8 5 Media Pre 8can lsllsllselllllll esr n 40 8 6 Deferred Auto Reallocation ooooooooooooo ene 40 8 7 Idle Read After Write
14. a 4 bit field that reports the results of the test If the field is set to zero the drive passed with no errors detected by the DST If the field is not set to zero the test failed for the reason reported in the field The drive will report the failure condition and LBA if applicable in the Self test Results Log parameter The Sense key ASC ASCQ and FRU are used to report the failure condition Cheetah 15K 7 SAS Product Manual Rev B 17 5 2 6 2 5 Abort There are several ways to abort a diagnostic You can use a SCSI Bus Reset or a Bus Device Reset message to abort the diagnostic You can abort a DST executing in background mode by using the abort code in the DST Function Code field This will cause a 01 self test aborted by the application client code to appear in the self test results values log All other abort mechanisms will be reported as a 02 self test routine was interrupted by a reset condition 5 2 7 Product warranty Beginning on the date of shipment to the customer and continuing for the period specified in your purchase contract Seagate warrants that each product including components and subassemblies that fails to function properly under normal use due to defect in materials or workmanship or due to nonconformance to the applica ble specifications will be repaired or replaced at Seagate s option and at no charge to the customer if returned by customer at customer s expense to Seagate s designated facility in accord
15. areas of safety power distribution shielding audible noise control and temperature regulation In particular the drive must be securely mounted to guarantee the specified performance characteristics Mounting by bot tom holes must meet the requirements of Section 9 3 2 1 Standards The Cheetah 15K 7 SAS family complies with Seagate standards as noted in the appropriate sections of this manual and the Seagate SAS Interface Manual part number 100293071 The drives are recognized in accordance with UL 60950 1 and CSA 60950 1 as tested by UL and EN60950 1 as tested by TUV The security features of Cheetah 15K 7 SAS SED models are based on the TCG Storage Architecture Core Specification and the TCG Storage Workgroup Security Subsystem Class Enterprise A specification with additional vendor unique features as noted in this product manual 2 1 1 Electromagnetic compatibility The drive as delivered is designed for system integration and installation into a suitable enclosure prior to use The drive is supplied as a subassembly and is not subject to Subpart B of Part 15 of the FCC Rules and Regulations nor the Radio Interference Regulations of the Canadian Department of Communications The design characteristics of the drive serve to minimize radiation when installed in an enclosure that provides reasonable shielding The drive is capable of meeting the Class B limits of the FCC Rules and Regulations of the Canadian Department of Communi
16. cannot guarantee that all systems will comply The computer manufacturer or system integrator shall confirm EMC compliance and provide the appropriate marking for their product Electromagnetic compliance for the European Union If this model has the CE Marking it complies with the European Union requirements of the Electromagnetic Compatibility Directive 89 336 EEC of 03 May 1989 as amended by Directive 92 31 EEC of 28 April 1992 and Directive 93 68 EEC of 22 July 1993 Australian C Tick If this model has the C Tick Marking it complies with the Australia New Zealand Standard AS NZS3548 1995 and meets the Electromagnetic Compatibility EMC Framework requirements of Australia s Spectrum Man agement Agency SMA Korean KCC If this model has the Korean Communications Commission KCC logo it complies with paragraph 1 of Article 11 of the Electromagnetic Compatibility EMC Control Regulation and meets the Electromagnetic Compatibil ity Framework requirements of the Radio Research Laboratory RRL Ministry of Information and Communica tion Republic of Korea Taiwanese BSMI If this model has two Chinese words meaning EMC certification followed by an eight digit identification num ber as a Marking it complies with Chinese National Standard CNS 13438 and meets the Electromagnetic Compatibility EMC Framework requirements of the Taiwanese Bureau of Standards Metrology and Inspec tion BSMI 2 3 European Union Restriction of Haza
17. channels as defined by the relevant ANSI standard 10 7 Additional information Please contact your Seagate representative for SAS electrical details if required For more information about the Phy Link Transport and Applications layers of the SAS interface refer to the Seagate SAS Interface Manual part number 100293071 For more information about the SCSI commands used by Seagate SAS drives refer to the Seagate SCSI Commands Reference Manual part number 100293068 Cheetah 15K 7 SAS Product Manual Rev B 61 11 0 Seagate Technology support services Internet For information regarding Seagate products and services visit www seagate com Worldwide support is available 24 hours daily by email for your questions Presales Support Presales Seagate com Technical Support DiscSupport Seagate com Warranty Support http www seagate com www en us support warranty_ amp returns assistance mySeagate my seagate com is the industry s first Web portal designed specifically for OEMs and distributors It provides self service access to critical applications personalized content and the tools that allow our partners to man age their Seagate account functions Submit pricing requests orders and returns through a single password protected Web interface anytime anywhere in the world spp seagate com spp seagate com supports Seagate resellers with product information program benefits and sales tools You may register for custo
18. for the 5 volt power sup ply is through the common ground pins The supply current and return current must be distributed as evenly as possible among the pins Current to the drive through the long power pins may be limited by the system to reduce inrush current to the drive during hot plugging 10 5 Signal characteristics This section describes the electrical signal characteristics of the drive s input and output signals See Table 23 for signal type and signal name information 10 5 1 Ready LED Out The Ready LED Out signal is driven by the drive as indicated in Table 24 Table 24 Ready LED Out conditions Normal command activity LED status Ready LED Meaning bit mode page 19h 0 1 Spun down and no activity Off Off Spun down and activity command executing On On Spun up and no activity On Off Spun up and activity command executing Off On Spinning up or down Blinks steadily 50 on and 50 off 0 5 seconds on and off for 0 5 seconds Format in progress Toggles on off Write Same command in progress Toggles on off 60 Cheetah 15K 7 SAS Product Manual Rev B The Ready LED Out signal is designed to pull down the cathode of an LED The anode is attached to the proper 3 3 volt supply through an appropriate current limiting resistor The LED and the current limiting resis tor are external to the drive See Table 25 for the output characteristics of the LED drive signals Table 25 LED drive signal
19. from the buf fer to the host on subsequent Read commands that request those logical blocks this is true even if cache operation is disabled Though the prefetch operation uses the buffer as a cache finding the requested data in the buffer is a prefetch hit not a cache operation hit To enable Prefetch use Mode Select page 08h byte 12 bit 5 Disable Read Ahead DRA bit DRA bit 0 enables prefetch The drive does not use the Max Prefetch field bytes 8 and 9 or the Prefetch Ceiling field bytes 10 and 11 When prefetch read look ahead is enabled enabled by DRA 0 the drive enables prefetch of contiguous blocks from the disk when it senses that a prefetch hit will likely occur The drive disables prefetch when it decides that a prefetch hit is not likely to occur Cheetah 15K 7 SAS Product Manual Rev B 11 5 0 Reliability specifications The following reliability specifications assume correct host and drive operational interface including all inter face timings power supply voltages environmental requirements and drive mounting constraints Seek error rate Less than 10 errors in 10 seeks Read Error Rates Recovered Data Less than 10 errors in 10 bits transferred OEM default settings Unrecovered Data Less than 1 sector in 106 bits transferred Miscorrected Data Less than 1 sector in 102 bits transferred Interface error rate Less than 1 error in 10 bits transferred MTBF 1 600 000 hours AFR 0 5596 Preventiv
20. parts and materials Our supplier contracts require compliance with our chemical substance restrictions and our suppliers document their compliance with our requirements by providing material content declarations for all parts and materials for the disc drives documented in this publication Current supplier declarations include disclosure of the inclusion of any RoHS regulated substance in such parts or materials Seagate also has internal systems in place to ensure ongoing compliance with the RoHS Directive and all laws and regulations which restrict chemical content in electronic products These systems include standard operat ing procedures that ensure that restricted substances are not utilized in our manufacturing operations labora tory analytical validation testing and an internal auditing process to ensure that we comply with all standard operating procedures 32 Cheetah 15K 7 SAS Product Manual Rev B 6 4 9 Electromagnetic susceptibility See Section 2 1 1 1 6 5 Mechanical specifications Refer to Figure 9 for detailed physical dimensions See Section 9 3 Drive mounting Height 1 03 in Width 4 00 in Depth 5 79 in Weight max 1 76 pounds 26 10 mm 101 60 mm 147 mm 0 80 kilograms LO
21. plane of operation This time is required to insure data integrity Cheetah 15K 7 SAS Product Manual Rev B 13 5 2 4 S M A R T S M A R T is an acronym for Self Monitoring Analysis and Reporting Technology This technology is intended to recognize conditions that indicate imminent drive failure and is designed to provide sufficient warning of a failure to allow you to back up the data before an actual failure occurs Note The drive s firmware monitors specific attributes for degradation over time but can t predict instanta neous drive failures Each monitored attribute has been selected to monitor a specific set of failure conditions in the operating per formance of the drive and the thresholds are optimized to minimize false and failed predictions Controlling S M A R T The operating mode of S M A R T is controlled by the DEXCPT and PERF bits on the Informational Exceptions Control mode page 1Ch Use the DEXCPT bit to enable or disable the S M A R T feature Setting the DEX CPT bit disables all S M A R T functions When enabled S M A R T collects on line data as the drive performs normal read and write operations When the PERF bit is set the drive is considered to be in On line Mode Only and will not perform off line functions You can measure off line attributes and force the drive to save the data by using the Rezero Unit command Forcing S M A R T resets the timer so that the next scheduled interrupt is in two hour
22. r4 4 l H 0 40 0 05 X 45 3X 4 85 0 06 7 0 10B y CORING ALLOWED i N THIS AREA lt 4 40 0 15 SEE Detail 2 R0 30 0 08 C A 95 0 08 i 45 NE 0 35 0 05 3 90 0 15 lt SECTION C SECTION A A CONTACT SURFACE FLUSH TO DATUM A 0 03 i gt LLL i yx ee lt 1 90 0 08 1235 0 051 1 Gs ae ID 30 t Detail 2 7 4 2 40 m o 10 A ww 0 08 0 05 SECTION B B Figure 13 SAS connector dimensions 10 4 2 Physical characteristics This section defines physical interface connector 10 4 3 Connector requirements The SAS connector on the drive complies with SFF 8482 Contact your preferred connector manufacturer for mating part information The SAS device connector is illustrated in Figures 12 and 13 58 Cheetah 15K 7 SAS Product Manual Rev B 10 4 4 Electrical description SAS drives use the device connector for DC power SAS interface Activity LED This connector is designed to either plug directly into a backpanel or accept cables 10 4 5 Pin descriptions This section provides a pin out of the SAS device and a description of the functions provided by the pins Table 23 SAS pin descriptions Pin Signal name Signal type Pin Signal name Signal type S
23. that the drive is packaged in the shipping container designed by Seagate for use with drive Figure 7 Location of the HDA temperature check point 6 4 2 Relative humidity The values below assume that no condensation on the drive occurs a Operating 5 to 95 non condensing relative humidity with a maximum gradient of 20 per hour b Non operating 5 to 95 non condensing relative humidity 6 4 3 Effective altitude sea level a Operating 1 000 to 10 000 feet 305 to 3 048 meters b Non operating 1 000 to 40 000 feet 305 to 12 210 meters 6 4 4 Shock and vibration Shock and vibration limits specified in this document are measured directly on the drive chassis If the drive is installed in an enclosure to which the stated shock and or vibration criteria is applied resonances may occur internally to the enclosure resulting in drive movement in excess of the stated limits If this situation is apparent it may be necessary to modify the enclosure to minimize drive movement The limits of shock and vibration defined within this document are specified with the drive mounted by any of the four methods shown in Figure 8 and in accordance with the restrictions of Section 9 3 6 4 4 1 Shock a Operating normal The drive as installed for normal operation shall operate error free while subjected to intermittent shock not exceeding 15 Gs at a duration of 11 msec half sinewave 20 Gs at a duration of 2 msec half
24. the media and compares it to valid write command data resident in the drives data buffer Any sectors that fail the comparison result in the invocation of a rewrite and auto reallocation process The process attempts to rewrite the data to the original location If a verification of this rewrite fails the sector is re mapped to a spare location 40 Cheetah 15K 7 SAS Product Manual Rev B 9 0 Installation Cheetah 15K 7 disk drive installation is a plug and play process There are no jumpers switches or termina tors on the drive SAS drives are designed to be used in a host system that provides a SAS compatible backplane with bays designed to accommodate the drive In such systems the host system typically provides a carrier or tray into which you need to mount the drive Mount the drive to the carrier or tray provided by the host system using four 6 32 UNC screws Do not over tighten or force the screws You can mount the drive in any orientation Note SAS drives are designed to be attached to the host system without I O or power cables If you intend the use the drive in a non backplane host system connecting the drive using high quality cables is acceptable as long as the I O cable length does not exceed 4 meters 13 1 feet Slide the carrier or tray into the appropriate bay in your host system using the instructions provided by the host system This connects the drive directly to your system s SAS connector The SAS connector is normall
25. track of the logical block addresses of the data stored in each segment of the buffer If the cache is enabled see RCD bit in the SAS Interface Manual data requested by the host with a read command is retrieved from the buffer if possible before any disk access is initiated If cache operation is not enabled the buffer is still used but only as circular buffer segments during disk medium read operations disregarding Prefetch operation for the moment That is the drive does not check in the buffer segments for the requested read data but goes directly to the medium to retrieve it The retrieved data merely passes through some buffer segment on the way to the host All data transfers to the host are in accordance with buffer full ratio rules See the explanation provided with the information about Mode Page 02h disconnect reconnect control in the SAS Interface Manual The following is a simplified description of the prefetch cache operation Case A read command is received and all of the requested logical blocks are already in the cache 1 Drive transfers the requested logical blocks to the initiator Case B A Read command requests data and at least one requested logical block is not in any segment of the cache 1 The drive fetches the requested logical blocks from the disk and transfers them into a segment and then from there to the host in accordance with the Mode Select Disconnect Reconnect parameters page 02h 2 Ifthe prefet
26. 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 DEF 59 02 00 Oc 00 06 03 e8 O CHG 59 02 00 Oc 00 00 ff ff 0 00 00 00 00 O 00 00 00 00 O 00 00 00 00 aa DEF 59 03 00 2c 00 06 00 02 00 00 00 10 80 ac 00 01 80 ac 00 01 00 00 00 00 00 00 09 00 00 01 00 10 80 ac 00 01 80 ac 00 01 00 00 00 00 00 00 09 00 CHG 59 03 00 2c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Jc EF 9a 0a 00 02 00 00 00 05 O HG 9a Oa 00 03 ff ff ff ff 0 00 8c a0 00 00 00 O O Q 52 Cheetah 15K 7 SAS Product Manual Rev B DEF 9c CHG 9c DEF dc CHG dc DEF 80 0a 0a 01 01 06 10 9d 00 00 00 CHG 80 06 b7 READ CAPACITY READ BUFFER 000000 0 34 1 65 00 00 Of ff 0c 01 Oc 00 80 Of cO 8f DATA 2 43 F8 6F 00 ff 01 01 00 00 00 00 00 ff 00 00 00 00 00 ff ff 18 00 EEEE 00 00 02 00 00 ff 18 ff 00 ff 00 00 9 Cheetah 15K 7 SAS Product Manual Rev B 01 f 00 00 00 00 00 00 00 00 00 00 Ju Bs xp cm 53 10 3 2 3 MOD 0 E DATA HEADER 1 76 00 10 00 00 00 08 BLOCK DESCRIPTOR 2 E hz CHG DEF 00 2 ec b2 5c 00 00 02 00 ODE PAGES 81 0a c0 Ob ff 00 00 00 05 00 ff ff
27. 0 01 80 ac 00 0 00 00 00 00 00 00 00 00 00 DEF 39a Oa 00 02 00 00 00 05 0 50 EF 59 03 00 2c 00 06 00 02 00 D 0 CHG 59 03 00 2c 00 00 00 00 00 0 00 00 00 00 00 0 00 8c a0 00 00 00 00 00 00 00 00 00 O 00 00 00 00 O 00 00 10 80 ac 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 80 ac 00 01 00 00 00 00 0 00 09 00 00 00 00 00 00 00 00 00 00 00 0 00 00 00 50 00 00 00 00 00 06 00 00 00 00 00 00 00 05 00 00 00 00 00 09 00 bO 01 00 00 00 00 00 00 00 88 00 00 0 00 00 Cheetah 15K 7 SAS Product Manual Rev B CHG 9a DEF 9c CHG 9c DEF dc CHG dc DEF 80 CHG 80 0a 0a 0a 01 01 06 06 00 10 9d 00 00 00 b7 READ CAPACITY READ BUFFER 000000 0 45 1 DD 03 ff 00 00 Of frt f Oc cO 8f DATA 2F AF f 00 00 00 00 00 00 02 ff 00 E DE 00 E FE 00 ff 00 ff 18 ff ff 00 ff 00 00 9 ff 01 EE 00 00 00 00 00 00 00 00 00 00 A BB D ti Cheetah 15K 7 SAS Product Manual Rev B ASCII 51 10 3 2 2 ST3450857SS and ST3450757SS Mode Sense data MODE DATA HEADER 01 76 00 10 00 00 00 08 BLOCK DESCRIPTOR 34 65 8 70 00 00 02 00 MODE PAGES DEF 81 0a cO Ob ff 00 00 00 05 00 ff ff CHG 81 Oa ff ff 00 00 00 00 ff 00 ff ff DEF 8
28. 00 00 00 00 00 0 00 00 00 00000 0 0 00 00 00 00 00 00 00 00 00 00 0 59 02 00 0c 00 06 03 e8 00 00 00 00 00 00 59 02 00 Oc 00 00 f ff 00 00 00 00 00 00 59 03 00 2c 00 06 00 02 00 00 00 10 80 ac 00 01 00 10 80 ac 00 01 80 ac 00 01 80 a8 O 59 03 00 2c 00 00 00 00 00 00 00 00 00 00 00 0 00 0 00 0 0 00 00 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 54 0 0 1 80 ac 00 01 80 a8 00 00 0a 00 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 66 d5 00 00 03 00 00 00 00 00 00 00 00 00 00 00 50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0a 00 00 00 Cheetah 15K 7 SAS Product Manual Rev B 9a 0a 00 02 00 00 00 05 00 00 8c a0 CHG 9a Oa 00 03 ff ff ff ff 00 00 00 00 Z E nj DEF 9c 0a 10 00 00 00 00 00 00 00 00 01 CHG 9c Oa 9d Of ff ff ff ff ff ff ff ff DEF dc 01 00 Oc 01 01 00 18 00 18 00 00 00 00 00 00 CHG dc 01 00 0c 00 01 ff ff ff ff 00 00 00 00 00 00 DEF 380 06 00 80 0 00 00 00 CHG 80 06 b7 cO 8 00 00 00 READ CAPACITY DATA READ BUFFER 1 2 3 4 5 6 7 8 9 A B C D E E ASCII 00000 22 EC B2 5B 00 00 02 00 10 4 Miscellaneous operating features and conditions Table 21 lists various features and conditions A Y in the support column indicates the feature or condition is supported An N in the support column indicates the feature or condition is not supported Table 21 Miscellaneous fea
29. 1 Port A Ground P1 NC reserved 3 3Volts S2 Port A in Diff input pair P2 NC reserved 3 3Volts S3 Port A in P3 NC reserved 3 3Volts S4 Port A Ground P4 Ground S5 Port A out Diff output pair P5 Ground S6 Port A out P6 Ground S7 Port A Ground P7 5 Volts charge S8 Port B Ground P8 5 Volts S9 Port B in Diff input pair P9 5 Volts S10 Port B in P10 Ground S11 Port A Ground P11 Ready LED Open collector out S12 PortB out Diff output pair P12 Ground S13 Port B out P13 12 Volts charge S14 Port B Ground P14 12 Volts P15 12 Volts Short pin to support hot plugging NC No connection in the drive Cheetah 15K 7 SAS Product Manual Rev B 59 10 4 6 SAS transmitters and receivers A typical SAS differential copper transmitter and receiver pair is shown in Figure 14 The receiver is AC cou pling to eliminate ground shift noise A 2 s Differential Receiver 100 Transfer Medium Figure 14 SAS transmitters and receivers 10 4 7 Power The drive receives power 5 volts and 12 volts through the SAS device connector Three 12 volt pins provide power to the drive 2 short and 1 long The current return for the 12 volt power supply is through the common ground pins The supply current and return current must be distributed as evenly as possible among the pins Three 5 volt pins provide power to the drive 2 short and 1 long The current return
30. 2 Oe 00 00 00 00 00 00 00 00 01 3a 00 00 00 00 CHG 82 Oe 00 00 00 00 00 00 00 00 f ff 00 00 00 00 DEF 83 16 bb d CHG 83 16 00 0 0 00 00 00 03 80 04 c4 02 0 0 00 00 00 00 00 00 00 00 0 00 01 00 cO 00 4c 40 00 00 00 00 00 00 00 00 00 00 00 00 00 O G oo oo DEF 84 16 01 8a 9a 06 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3a a7 00 00 CHG 84 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 DEF 87 0a 00 Ob ff 00 00 00 00 00 ff ff CHG 87 0a Of ff 00 00 00 00 00 00 ff ff DEF 88 12 14 0 CHG 88 12 a5 0 ff ff 00 00 ff ff ff ff 80 20 00 00 00 00 00 00 00 00 ff ff ff ff 00 00 20 00 00 00 00 00 00 00 C CS DEF 8a 0a 02 00 00 00 00 00 00 00 12 cO CHG 8a Oa 03 0 00 00 00 00 00 00 00 00 DEr 18 06 06 00 00 00 00 00 CHG 18 06 00 00 00 00 00 00 DEF 99 Oe 06 00 07 d0 00 00 00 00 00 00 00 00 00 00 SO CHG 99 Oe 10 00 ff ff ff ff 00 00 00 00 00 00 00 00 DEF d9 01 00 64 00 06 00 02 00 00 00 00 10 29 De 00 50 00 c5 00 00 15 4b 65 50 06 05 bO 00 29 28 55 07 00 00 00 00 00 00 00 88 aa 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 10 29 Oe 00 50 00 c5 00 00 15 4b 66 50 06 05 bO 00 29 28 54 06 00 00 00 00 00 00 00 88 aa 00 00 00 00 00 00 00 00 00 00 00 00 00 00 CHG d9 01 00 64 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0
31. 6 1 05 0 58 1 07 Maximum DC peak 30 1 26 2 94 1 28 2 92 Peak operating current sequential read Typical DC 11161 1 0 98 0 83 0 99 0 84 Maximum DC 3e 1 1 08 0 84 1 10 0 85 Maximum DC peak 30 1 40 1 26 1 46 1 24 Peak operating current sequential write Typical DC 116 1 0 93 0 83 0 94 0 83 Maximum DC 3o 1 1 00 0 84 1 02 0 85 Maximum DC peak 3o 1 30 1 24 1 30 1 26 20 Cheetah 15K 7 SAS Product Manual Rev B Table 14 450 GB DC power requirements ST3450857SS ST3450857SS ST3450757SS ST3450757SS 3 Gbit mode 6 Gbit mode Notes Amps Amps Amps Amps Voltage 5V 12V 2 5V 12V 2 Regulation 5 15 15 2 15 15 2 Avg idle current 1 7 0 39 0 68 0 41 0 66 Maximum starting current peak DC DC 30 3 0 65 1 94 0 67 1 94 peak AC AC 30 3 0 94 3 91 0 96 3 89 Delayed motor start max DC 30 1 4 0 54 0 04 0 56 0 04 Peak operating current random read Typical DC 1 6 1 0 45 1 01 0 47 1 02 Maximum DC 30 1 0 48 1 08 0 51 1 06 Maximum DC peak 30 1 28 2 90 1 30 2 84 Peak operating current random write Typical DC 1 6 1 0 52 0 90 0 55 0 89 Maximum DC 30 1 0 56 0 93 0 58 0 91 Maximum DC peak 30 1 24 2 78 1 26 2 84 Peak operating current sequential read Typical DC 11161 1 0 98 0 69 1 03 0 67 Maximum DC 3c 1 1 04 0 70 1 10 0 68 Maximum DC peak 3c 1 36 1 10 1 44 1 10 Peak operating current sequential wri
32. AC coupling 60 AC power requirements 19 ACA active status 56 ACA active faulted initiator status 56 acoustics 32 active LED Out signal 60 actuator assembly design 5 adaptive caching 55 Admin SP 34 AES 128 data encryption 34 AFR 7 air cleanliness 32 airflow 41 42 illustrated 42 airinlet 41 altitude 29 ambient 29 ambient temperature 41 ANSI documents Serial Attached SCSI 4 asynchronous event notification 55 audible noise 2 auto write and read reallocation programmable 6 automatic contingent allegiance 55 average idle current 20 21 22 average rotational latency 8 B Background Media Scan 39 backpanel 59 BandO 35 BandMasterX 34 BMS 39 buffer data 6 space 10 busy status 55 C cache operation 10 Cheetah 15K 7 SAS Product Manual Rev B cache segments 10 caching write data 11 Canadian Department of Communications 2 capacity unformatted 8 CBC 34 check condition status 55 chemical pollutants 32 Cipher Block Chaining 34 class B limit 2 clear ACA function 43 clear task set function 43 commands supported 44 condensation 29 condition met good status 55 connector illustrated 58 requirements 58 continuous vibration 32 cooling 41 corrosive environment 32 CRC error 13 Cryptographic erase 35 Current profiles 23 customer service 18 D DAR 40 Data Bands 35 data bands 34 Data encryption 34 Data Encryption Key 34 data heads read write 8 data rate internal 8 data transfer rate 9 DC power 59 requireme
33. EN t aUe deal cat ie RO RE Meo 12 5 1 1 Recoverable Errors ooooccooo llle 12 5 1 2 Unrecoverable ErTOTS oooococoo tee 12 5 1 3 S6elcerTOrS occu eda aw cemadaten sale eU fake wads cu eus seu 13 5 1 4 Interface errors 2 tees 13 5 2 Reliability and service rresiaren rimt renani paa aaae Rm hh tn 13 5 2 1 Annualized Failrue Rate AFR and Mean time between failure MTBF 13 5 2 2 Preventive maintenance o oooooooco ees 13 5 2 3 Hot plugging the drive orsa redre rr iaaa AEEA II 13 5 2 4 SMAR Do si oed petet Maori t dons feed BRAND E Montag 14 5 2 5 Thermal monitor llle 15 5 2 6 Drive Sef Test DS T misuse E IerteemSiaefeexXat6 p UM qase gie 16 5 2 7 Product Warranty x 5o ads ae DEG de up EV Peed he NN TES 18 Physical electrical specifications ooooomooooorrnoaann BIBBIA 19 6 1 AC power requirements 0 000 eee 19 6 2 DC power requirements 00 000 rr 19 6 2 1 Conducted noise immunity llle 23 6 2 2 Power sequencing sse le hr hr e 23 6 2 3 Current profiles 222420 xr erecta de tte or dn Fa eue Rees EROR Re pun Ra 23 6 3 Power dissipation oooo ooooooooo le 26 6 4 Environmental limits ills Ie 28 6 4 1 Temperature 28 Cheetah 15K 7 SAS Product Manual Rev B 7 0 8 0 9 0 10 0 6 4 2 Relative humidity oooooccooo eee eee nes 29 6 4 3 Effective altitude sea level ooooooocccooocooo ens BR 29 6 4 4
34. Ese uit t ies 2 2 1 1 Electromagnetic compatibility llle 2 2 2 Compliance oue eae ate ead Bion oe Mek EE TEX Rue IE eM md 3 2 2 1 Electromagnetic compliance o o ococcccocccoo ne 3 2 3 European Union Restriction of Hazardous Substances RoHS ooooccoo ooo 3 2 4 Reference documents a nus naana aaea elles 4 General description 0 2 23 eta A hed Bei G 5 3 1 Standard features 0 00 cette 6 3 2 Media descriptlOn 4 4 3 ca a AA dodi A ada dd pala 6 3 3 Performance a edad 6 3 4 Reliability i Gr a a A a hates 7 3 5 Formatted CapacitieS ooooococoooororr el 7 3 6 Programmable drive capacity lliilleee re 7 3 7 Factory installed options 0 00 ee teen n 7 Performance characteristics cece eee eee eee nnn 8 4 1 Internal drive characteristics lille 8 4 2 Seek time 25x osea Met e tube A t ark lods qo Dee E Saa 8 4 2 1 ACCESS TIME s coito a Mae tad ad preter Bodo S Pant RS aae aeos 8 4 2 2 Format command execution time minutes llis lessen 9 4 2 3 General performance characteristiCS oooooooooooco ooo 9 4 3 Start Stop time 5 ume AA Ue a Rcg Wisi dn 9 4 4 Prefetch multi segmented cache CONtrOl ooooooocccocc eese 10 4 5 Cache operation o oooooo Rr 10 4 5 1 Caching write data n 11 4 5 2 Prefetch operation o ooooooccco ee 11 Reliability specifications l l III eee eee 12 5 1 Error rates Sv tou REX
35. I SAS documents SFF 8323 3 5 Drive Form Factor with Serial Connector SFF 8460 HSS Backplane Design Guidelines SFF 8470 Multi Lane Copper Connector SFF 8482 SAS Plug Connector ANSI INCITS xxx Serial Attached SCSI SAS 2 Standard T10 1562 D ISO IEC 14776 xxx SCSI Architecure Model 4 SAM 4 Standard T10 1561 D ISO IEC 14776 xxx SCSI Primary Commands 3 SPC 3 Standard T10 1416 D ISO IEC 14776 xxx SCSI Block Commands 2 SBC 2 Standard T10 1417 D Trusted Computing Group TCG Documents apply to SED models only TCG Core Specification version 0 9 TCG SSC Specification draft Self Encrypting Drives Users Guide Seagate part number 100515636 Specification for Acoustic Test Requirement and Procedures Seagate part number 30553 001 Package Test Specification Seagate P N 30190 001 under 100 Ib Package Test Specification Seagate P N 30191 001 over 100 Ib In case of conflict between this document and any referenced document this document takes precedence 4 Cheetah 15K 7 SAS Product Manual Rev B 3 0 General description Cheetah 15K 7 drives provide high performance high capacity data storage for a variety of systems including engineering workstations network servers mainframes and supercomputers The Serial Attached SCSI inter face is designed to meet next generation computing demands for performance scalability flexibility and high density storage requirements Cheetah 15K 7 drives support the Serial Attached SCSI Pro
36. Seagate as a failed drive A Drive Not Ready condition is reported by the drive under the following conditions 16 Cheetah 15K 7 SAS Product Manual Rev B Motor will not spin Motor will not lock to speed Servo will not lock on track Drive cannot read configuration tables from the disk In these conditions the drive responds to a Test Unit Ready command with an 02 04 00 or 02 04 03 code 5 2 6 2 2 Invoking DST To invoke DST submit the Send Diagnostic command with the appropriate Function Code 001b for the short test or 010b for the extended test in bytes 1 bits 5 6 and 7 5 2 6 2 3 Short and extended tests DST has two testing options 1 short 2 extended These testing options are described in the following two subsections Each test consists of three segments an electrical test segment a servo test segment and a read verify scan segment Short test Function Code 001b The purpose of the short test is to provide a time limited test that tests as much of the drive as possible within 120 seconds The short test does not scan the entire media surface but does some fundamental tests and scans portions of the media A complete read verify scan is not performed and only factual failures will report a fault condition This option provides a quick confidence test of the drive Extended test Function Code 010b The objective of the extended test option is to empirically test critical drive components For
37. al seek error the drive automatically performs an error recovery process If the error recovery process fails a seek positioning error Error code 15h or 02h will be reported with a Hardware error 04h in the Sense Key Recoverable seek errors are specified at Less than 10 errors in 10 seeks Unrecoverable seek errors Sense Key 04h are classified as drive failures 5 1 4 Interface errors An interface error is defined as a failure of the receiver on a port to recover the data as transmitted by the device port connected to the receiver The error may be detected as a running disparity error illegal code loss of word sync or CRC error 5 2 Reliability and service You can enhance the reliability of Cheetah disk drives by ensuring that the drive receives adequate cooling Section 6 0 provides temperature measurements and other information that may be used to enhance the ser vice life of the drive Section 9 2 provides recommended air flow information 5 2 1 Annualized Failrue Rate AFR and Mean time between failure MTBF These drives shall achieve an AFR of 0 55 MTBF of 1 600 000 hours when operated in an environment that ensures the HDA case temperatures do not exceed the values specified in Section 6 4 Operation at case temperatures outside the specifications in Section 6 4 may increase the AFR decrease the MTBF AFR and MTBF statistics are population statistics that are not relevant to individual units AFR and MTBF specif
38. ance with Seagate s warranty procedure Seagate will pay for transporting the repair or replacement item to the customer For more detailed warranty information refer to the standard terms and conditions of purchase for Seagate products on your pur chase documentation The remaining warranty for a particular drive can be determined by calling Seagate Customer Service at 1 800 468 3472 You can also determine remaining warranty using the Seagate web site www seagate com The drive serial number is required to determine remaining warranty information Shipping When transporting or shipping a drive use only a Seagate approved container Keep your original box Sea gate approved containers are easily identified by the Seagate Approved Package label Shipping a drive in a non approved container voids the drive warranty Seagate repair centers may refuse receipt of components improperly packaged or obviously damaged in tran sit Contact your authorized Seagate distributor to purchase additional boxes Seagate recommends shipping by an air ride carrier experienced in handling computer equipment Product repair and return information Seagate customer service centers are the only facilities authorized to service Seagate drives Seagate does not sanction any third party repair facilities Any unauthorized repair or tampering with the factory seal voids the warranty 18 Cheetah 15K 7 SAS Product Manual Rev B 6 0 Physical electrical specificati
39. cations when properly packaged however it is the user s responsibility to assure that the drive meets the appropriate EMI requirements in their system Shielded I O cables may be required if the enclosure does not provide adequate shielding If the I O cables are external to the enclosure shielded cables should be used with the shields grounded to the enclosure and to the host controller 2 1 1 1 Electromagnetic susceptibility As a component assembly the drive is not required to meet any susceptibility performance requirements It is the responsibility of those integrating the drive within their systems to perform those tests required and design their system to ensure that equipment operating in the same system as the drive or external to the system does not adversely affect the performance of the drive See Tables 13 14 and 15 for DC power requirements 2 Cheetah 15K 7 SAS Product Manual Rev B 2 2 Compliance 2 2 1 Electromagnetic compliance Seagate uses an independent laboratory to confirm compliance with the directives standards for CE Marking and C Tick Marking The drive was tested in a representative system for typical applications The selected sys tem represents the most popular characteristics for test platforms The system configurations include Typical current use microprocessor Keyboard Monitor display Printer Mouse Although the test system with this Seagate model complies with the directives standards we
40. ch feature is enabled refer to section 4 5 2 for operation from this point Each cache segment is actually a self contained circular buffer whose length is an integer number of logical blocks The drive dynamically creates and removes segments based on the workload The wrap around capa bility of the individual segments greatly enhances the cache s overall performance Note The size of each segment is not reported by Mode Sense command page 08h bytes 14 and 15 The value OXFFFF is always reported regardless of the actual size of the segment Sending a size specification using the Mode Select command bytes 14 and 15 does not set up a new segment size If the STRICT bit in Mode page 00h byte 2 bit 1 is set to one the drive responds as it does for any attempt to change an unchangeable parameter 10 Cheetah 15K 7 SAS Product Manual Rev B 4 5 1 Caching write data Write caching is a write operation by the drive that makes use of a drive buffer storage area where the data to be written to the medium is stored while the drive performs the Write command If read caching is enabled RCD 0 then data written to the medium is retained in the cache to be made avail able for future read cache hits The same buffer space and segmentation is used as set up for read functions The buffer segmentation scheme is set up or changed independently having nothing to do with the state of RCD When a write command is issued if RCD 0 the cache is first check
41. e Seagate E Product Manual Cheetah 15K 7 SAS Standard models Self Encrypting Drive models ST3600057SS ST3600957SS ST3450857SS ST3450757SS ST3300657SS ST3300557SS 100516226 Rev B January 2010 O 2010 Seagate Technology LLC All rights reserved Publication number 100516226 Rev B January 2010 Seagate Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and or other countries Cheetah and SeaTools are either trademarks or registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States and or other countries All other trademarks or registered trademarks are the property of their respective own ers No part of this publication may be reproduced in any form without the written permission of Seagate Technology LLC One gigabyte or GB equals one billion bytes and one terabyte or TB equals one trillion bytes Your computer s operating system may use a different standard of measurement and report a lower capacity In addition some of the listed capacity is used for formatting and other functions and thus will not be available for data storage Seagate reserves the right to change without notice product offerings or specifications 1 0 2 0 3 0 4 0 5 0 6 0 Contents SCOPES aa a a bine IIS P 1 Standards compliance and reference documents 0 00e cee e eee o 2 2 1 Standards eae eec ee det B ente oed dte cat
42. e Error Recovery philosophy is presented in the SAS nterface Manual 8 2 Drive error recovery procedures When an error occurs during drive operation the drive if programmed to do so performs error recovery proce dures to attempt to recover the data The error recovery procedures used depend on the options previously set in the Error Recovery Parameters mode page Error recovery and defect management may involve using sev eral SCSI commands described in the SAS nterface Manual The drive implements selectable error recovery time limits required in video applications The error recovery scheme supported by the drive provides a way to control the total error recovery time for the entire command in addition to controlling the recovery level for a single LBA The total amount of time spent in error recovery for a command can be limited using the Recovery Time Limit bytes in the Error Recovery mode page The total amount of time spent in error recovery for a single LBA can be limited using the Read Retry Count or Write Retry Count bytes in the Error Recovery mode page The drive firmware error recovery algorithms consists of 13 levels for read recoveries and five levels for write Each level may consist of multiple steps where a step is defined as a recovery function involving a single re read or re write attempt The maximum level used by the drive in LBA recovery is determined by the read and write retry counts Cheetah 15K 7 SAS Product Manual
43. e _ M M I A A a C3 and F2 5V spinup current profile gt gt _ MU UH lt lt gt _ gt gt gt tf Figure 3 Typical 300GB current profiles Cheetah 15K 7 SAS Product Manual Rev B 6 3 Power dissipation ST3600057SS model Typical power dissipation under idle conditions in 6Gb operation is 11 62 watts 39 65 BTUs per hour To obtain operating power for typical random read operations refer to the following I O rate curve see Figure 4 Locate the typical I O rate for a drive in your system on the horizontal axis and read the corresponding 5 volt current 12 volt current and total watts on the vertical axis To calculate BTUs per hour multiply watts by 3 4123 813600057 SS CURRENT POWER vs THROUGHPUT SAS 6 0GB Random 8 Block Reads 18 00 e IMA 16 00 2 12VotA d1 Wats 0 0 50 0 100 0 150 0 200 0 250 0 300 0 350 0 400 0 450 0 VOs per Second Figure 4 ST3600057SS DC current and power vs input output operations per second 26 Cheetah 15K 7 SAS Product Manual Rev B ST3450857SS model Typical power dissipation under idle conditions in 6Gb operation is 9 97 watts 34 02 BTUs per hour To obtain operating power for typical random read operations refer to the following I O rate curve see Figure 4 Locate the typical I O rate for a drive in your system on the horizontal axis and read the corresponding 5 volt current 12 vol
44. e drive goes to idle during the Pre Scan period In the event that the drive is in a high transaction traffic environment and is unable to complete a BMS scan within 24 power on hours BMS will dis able Pre Scan to restore full performance to the system 8 6 Deferred Auto Reallocation Deferred Auto Reallocation DAR simplifies reallocation algorithms at the system level by allowing the drive to reallocate unreadable locations on a subsequent write command Sites are marked for DAR during read oper ations performed by the drive When a write command is received for an LBA marked for DAR the auto reallo cation process is invoked and attempts to rewrite the data to the original location If a verification of this rewrite fails the sector is re mapped to a spare location This is in contrast to the system having to use the Reassign Command to reassign a location that was unread able and then generate a write command to rewrite the data DAR is most effective when AWRE and ARRE are enabled this is the default setting from the Seagate factory With AWRE and ARRE disabled DAR is unable to reallocate the failing location and will report an error sense code indicating that a write command is being attempted to a previously failing location 8 7 Idle Read After Write Idle Read After Write IRAW utilizes idle time to verify the integrity of recently written data During idle periods no active system requests the drive reads recently written data from
45. e maintenance None required 5 1 Error rates The error rates stated in this manual assume the following The drive is operated per this specification using DC power as defined in this manual see Section 6 2 Errors caused by host system failures are excluded from error rate computations Assume random data Default OEM error recovery settings are applied This includes AWRE ARRE full read retries full write retries and full retry time Error rate specified with automatic retries and data correction with ECC enabled and all flaws reallocated 5 1 1 Recoverable Errors Recoverable errors are those detected and corrected by the drive and do not require user intervention Recoverable Data errors use retries and correction Application of ECC on the fly correction alone is not con sidered a Recovered Data error Recovered Data error rate is determined using read bits transferred for recoverable errors occurring during a read and using write bits transferred for recoverable errors occurring during a write 5 1 2 Unrecoverable Errors Unrecoverable Data Errors Sense Key 03h are specified at less than 1 sector in error per 1016 bits trans ferred Unrecoverable Data Errors resulting from the same cause are treated as 1 error for that block 12 Cheetah 15K 7 SAS Product Manual Rev B 5 1 3 Seek errors A seek error is defined as a failure of the drive to position the heads to the addressed track After detecting an initi
46. e number of total operations for a given attribute The interval defines the number of operations over which to measure the rate The counter that keeps track of the current number of operations is referred to as the Interval Counter S M A R T measures error rates All errors for each monitored attribute are recorded A counter keeps track of the number of errors for the current interval This counter is referred to as the Failure Counter Error rate is the number of errors per operation The algorithm that S M A R T uses to record rates of error is to set thresholds for the number of errors and their interval If the number of errors exceeds the threshold before the interval expires the error rate is considered to be unacceptable If the number of errors does not exceed the threshold before the interval expires the error rate is considered to be acceptable In either case the inter val and failure counters are reset and the process starts over Predictive failures S M A R T signals predictive failures when the drive is performing unacceptably for a period of time The firm ware keeps a running count of the number of times the error rate for each attribute is unacceptable To accom plish this a counter is incremented each time the error rate is unacceptable and decremented not to exceed zero whenever the error rate is acceptable If the counter continually increments such that it reaches the pre dictive threshold a predictive failure is s
47. e owner specified values 7 3 Random number generator RNG The drive has a 32 byte hardware RNG that it is uses to derive encryption keys or if requested to do so to pro vide random numbers to the host for system use including using these numbers as Authentication Keys pass words for the drive s Admin and Locking SPs 7 4 Drive locking In addition to changing the passwords as described in Section 7 2 3 the owner should also set the data access controls for the individual bands The variable LockOnReset should be set to PowerCycle to ensure that the data bands will be locked if power is lost This scenario occurs if the drive is removed from its cabinet The drive will not honor any data read or write requests until the bands have been unlocked This prevents the user data from being accessed without the appropriate credentials when the drive has been removed from its cabinet and installed in another System When the drive is shipped from the factory the firmware download port is locked and the drive will reject any attempt to download new firmware The drive owner must use the SID credential to unlock the firmware down load port before firmware updates will be accepted 7 5 Data bands When shipped from the factory the drive is configured with a single data band called Band 0 also known as the Global Data Band which comprises LBA 0 through LBA max The host may allocate Band1 by specifying a start LBA and an LBA range The
48. ed to see if any logical blocks that are to be written are already stored in the cache from a previous read or write command If there are the respective cache segments are cleared The new data is cached for subsequent Read commands If the number of write data logical blocks exceed the size of the segment being written into when the end of the segment is reached the data is written into the beginning of the same cache segment overwriting the data that was written there at the beginning of the operation however the drive does not overwrite data that has not yet been written to the medium If write caching is enabled WCE 1 then the drive may return Good status on a write command after the data has been transferred into the cache but before the data has been written to the medium If an error occurs while writing the data to the medium and Good status has already been returned a deferred error will be gen erated The Synchronize Cache command may be used to force the drive to write all cached write data to the medium Upon completion of a Synchronize Cache command all data received from previous write commands will have been written to the medium Table 10 3 2 1 shows the mode default settings for the drive 4 5 2 Prefetch operation If the Prefetch feature is enabled data in contiguous logical blocks on the disk immediately beyond that which was requested by a Read command are retrieved and stored in the buffer for immediate transfer
49. elect same pages as Mode Sense 1Ah 15h 2 Mode Select 10 same pages as Mode Sense 1Ah 55h Mode Sense 1Ah 2 Caching Parameters page 08h Control Mode page 0Ah Disconnect Reconnect 02h Error Recovery page 01h Format page 03h Information Exceptions Control page 1Ch Background Scan mode subpage 01h Notch and Partition Page 0Ch Protocol Specific Port page 19h Power Condition page 1Ah Rigid disk Drive Geometry page 04h Unit Attention page 00h Verify Error Recovery page 07h z lt lt lt lt lt 2 lt lt lt lt 2 lt z 2 lt 7 lt 2 z z lt Xor Control page 10h Cheetah 15K 7 SAS Product Manual Rev B Table 19 Commands supported by Cheetah 15K 6 SAS family drives continued Command name Command code Supported Mode Sense 10 same pages as Mode Sense 1Ah 5Ah Y Prefetch 34h N Read 08h Y Read Buffer modes 0 2 3 Ah and Bh supported 3Ch Y Read Capacity 25h Y Read Defect Data 10 37h Y Read Defect Data 12 B7h Y Read Extended 28h Y DPO bit supported Y FUA bit supported Y Read Long 3Eh Y Reassign Blocks 07h Y Receive Diagnostic Results 1Ch Y Supported Diagnostics pages 00h Y Translate page 40h Y Release
50. ength of air heated by the drive and other heat sources within the rack cabinet or drawer environment Cheetah 15K 7 SAS Product Manual Rev B 41 If forced air is determined to be necessary possible air flow patterns are shown in Figure 10 The air flow pat terns are created by one or more fans either forcing or drawing air as shown in the illustrations Conduction convection or other forced air flow patterns are acceptable as long as the temperature measurement guide lines of Section 6 4 1 are met it Note Air flows in the direction shown back to front under um or in reverse direction front to back Above uni Under unit Note Air flows in the direction shown or in reverse direction side to side Figure 10 Air flow 9 3 Drive mounting Mount the drive using the bottom or side mounting holes If you mount the drive using the bottom holes ensure that you do not physically distort the drive by attempting to mount it on a stiff non flat surface The allowable mounting surface stiffness is 80 Ib in 14 0 N mm The following equation and paragraph define the allowable mounting surface stiffness Kx X F lt 15lb 67N where K is the mounting surface stiffness units in Ib in or N mm and X is the out of plane surface distortion units in inches or millimeters The out of plane distortion X is determined by defining a plane with three of the four mounting points fixed and evaluating the out of plane deflecti
51. ent peaks will exceed these values Power supply at nominal voltage N number of drives tested 6 35 Degrees C ambient For 12 V a 10 tolerance is allowed during initial spindle start but must return to 5 before reaching 15 000 RPM The 5 must be maintained after the drive signifies that its power up sequence has been completed and that the drive is able to accept selection by the host initiator See 12V current profile in Figure 1 This condition occurs after OOB and Speed Negotiation completes but before the drive has received the Notify Spinup primitive Cheetah 15K 7 SAS Product Manual Rev B 5 6 7 See paragraph 6 2 1 Conducted noise immunity Specified voltage tolerance includes ripple noise and transient response Operating condition is defined as random 8 block reads at 375 I Os per second for 600GB models and 380 I Os per second for 450GB and 300GB models Current and power specified at nominal voltages During idle the drive heads are relocated every 60 seconds to a random location within the band from three quarters to maximum track General DC power requirement notes 1 Minimum current loading for each supply voltage is not less than 1 796 of the maximum operating current shown 2 The 5V and 12V supplies should employ separate ground returns 3 Where power is provided to multiple drives from a common supply careful consideration for individual drive power requirements should be noted Where mu
52. ent responses Table 18 lists the SAS response codes returned for task management functions supported Table 18 Task management response codes Function name Response code Function complete 00 Invalid frame 02 Function not supported 04 Function failed 05 Function succeeded 08 Invalid logical unit 09 Cheetah 15K 7 SAS Product Manual Rev B 43 10 2 Dual port support Cheetah 15K 7 SAS drives have two independent ports These ports may be connected in the same or differ ent SCSI domains Each drive port has a unique SAS address The two ports have the capability of independent port clocking e g both ports can run at 6Gbit sec or the first port can run at 6Gbit sec while the second port runs at 3Gbit sec The supported link rates are 1 5 3 0 or 6 0 Gbits sec Subject to buffer availability the Cheetah 15K 7 drives support Concurrent port transfers The drive supports receiving COMMAND TASK management transfers on both ports at the same time Full duplex The drive supports sending XFER RDY DATA and RESPONSE transfers while receiving frames on both ports 10 3 SCSI commands supported Table 19 lists the SCSI commands supported by Cheetah 15K 7 drives Table 19 Commands supported by Cheetah 15K 6 SAS family drives Command name Command code Supported Change Definition 40h Compare 39h Copy 18h Copy and Verify 3Ah Format Unit 1 04h
53. eration SCSI defect and error management involves drive internal defect error management and SAS system error considerations errors in communications between the initiator and the drive In addition Seagate provides the following technologies used to increase data integrity and drive reliability Background Media Scan see Section 8 4 Media Pre Scan see Section 8 5 Deferred Auto Reallocation see Section 8 6 Idle Read After Write see Section 8 7 The read error rates and specified storage capacities are not dependent on host initiator defect management routines 8 1 Drive internal defects errors During the initial drive format operation at the factory media defects are identified tagged as being unusable and their locations recorded on the drive primary defects list referred to as the P list and also as the ETF defect list At factory format time these known defects are also reallocated that is reassigned to a new place on the medium and the location listed in the defects reallocation table The P list is not altered after factory formatting Locations of defects found and reallocated during error recovery procedures after drive shipment are listed in the G list defects growth list The P and G lists may be referenced by the initiator using the Read Defect Data command Details of the SCSI commands supported by the drive are described in the SAS nterface Manual Also more information on the driv
54. example the seek tests and on track operations test the positioning mechanism The read operation tests the read head element and the media surface The write element is tested through read write read operations The integrity of the media is checked through a read verify scan of the media Motor functionality is tested by default as a part of these tests The anticipated length of the Extended test is reported through the Control Mode page 5 2 6 2 4 Log page entries When the drive begins DST it creates a new entry in the Self test Results Log page The new entry is created by inserting a new self test parameter block at the beginning of the self test results log parameter section of the log page Existing data will be moved to make room for the new parameter block The drive reports 20 param eter blocks in the log page If there are more than 20 parameter blocks the least recent parameter block will be deleted The new parameter block will be initialized as follows 1 The Function Code field is set to the same value as sent in the DST command 2 The Self Test Results Value field is set to Fh 3 The drive will store the log page to non volatile memory After a self test is complete or has been aborted the drive updates the Self Test Results Value field in its Self Test Results Log page in non volatile memory The host may use Log Sense to read the results from up to the last 20 self tests performed by the drive The self test results value is
55. g The shipping lock disengages and the head load process begins when power is applied to the drive The drives also use a high performance actuator assembly with a low inertia balanced patented straight arm design that provides excellent performance with minimal power dissipation Cheetah 15K 7 SAS Product Manual Rev B 5 3 1 Standard features Cheetah 15K 7 drives have the following standard features 1 5 3 6 Gbit Serial Attached SCSI SAS interface Integrated dual port SAS controller supporting the SCSI protocol Support for SAS expanders and fanout adapters Firmware downloadable using the SAS interface 128 deep task set queue Supports up to 32 initiators Jumperless configuration User selectable logical block size 512 520 or 528 bytes per logical block Programmable logical block reallocation scheme Flawed logical block reallocation at format time Programmable auto write and read reallocation Reallocation of defects on command Post Format ECC maximum burst correction length of 320 bits No preventive maintenance or adjustments required Dedicated head landing zone Embedded servo design Automatic shipping lock Self diagnostics performed when power is applied to the drive Zone bit recording Vertical horizontal or top down mounting Dynamic spindle brake 16 Mbyte data buffer Drive Self Test Background Media Scan Power Save Cheetah 15K 7 SAS SED models have the following additional feat
56. gate designs specify capacity points at certain block sizes that Seagate guarantees current and future products will meet We recommend customers use this capacity in their project planning as it ensures a stable operating point with backward and forward compatibility from generation to generation The current guaranteed operating points for this product are ST3600057SS ST3450857SS ST3300657FC ST3600957SS ST3450757SS ST3300557FC Sector Size Decimal Hex Decimal Hex Decimal Hex 512 1 172 123 568 45DD2FBO 879 097 968 3465F870 585 937 500 22ECB25C 520 1 147 307 694 446286AE 860 480 771 3349E503 573 653 848 22314358 524 1 132 015 600 43792FFO 849 011 700 329AE3F4 566 007 800 21BC97F8 528 1 115 749 560 4280FCB8 836 812 167 31E0BD87 557 874 778 21407E5A 3 6 Programmable drive capacity Using the Mode Select command the drive can change its capacity to something less than maximum See the Mode Select 6 parameter list table in the SAS Interface Manual part number 100293071 A value of zero in the Number of Blocks field indicates that the drive will not change the capacity it is currently formatted to have A number other than zero and less than the maximum number of LBAs in the Number of Blocks field changes the total drive capacity to the value in the Number of Blocks field A value greater than the maximum number of LBAs is rounded down to the maximum capacity 3 7 Factory installed options You may orde
57. he SAS nterface Manual Status reporting plays a role in systems error management and its use in that respect is described in sections where the various com mands are discussed 8 4 Background Media Scan Background Media Scan BMS is a self initiated media scan BMS is defined in the T10 document SPC 4 available from the T10 committee BMS performs sequential reads across the entire pack of the media while the drive is idle In RAID arrays BMS allows hot spare drives to be scanned for defects prior to being put into service by the host system On regular duty drives if the host system makes use of the BMS Log Page it can avoid placing data in suspect locations on the media Unreadable and recovered error sites will be logged or reallocated per ARRE AWRE settings Cheetah 15K 7 SAS Product Manual Rev B 39 With BMS the host system can consume less power and system overhead by only checking BMS status and results rather than tying up the bus and consuming power in the process of host initiated media scanning activ ity Since the background scan functions are only done during idle periods BMS causes a negligible impact to sys tem performance The first BMS scan for a newly manufactured drive is performed as quickly as possible to verify the media and protect data by setting the Start time after idle to 5ms all subsequent scans begin after 500ms of idle time Other features that normally use idle time to function will function normally beca
58. ications 30190 001 under 100 Ibs 45 kg or 30191 001 over 100 Ibs 45 Kg Package size Packaged product weight Drop height 600 cu in 9 800 cu cm Any 60 in 1524 mm 600 1800 cu in 9 800 19 700 cu cm 0 20 Ib 0 to 9 1 kg 48 in 1219 mm 21800 cu in 219 700 cu cm 0 20 Ib 0 to 9 1 kg 42 in 1067 mm 2600 cu in 29 800 cu cm 20 40 Ib 9 1 to 18 1 kg 36 in 914 mm Drives packaged in single or multipacks with a gross weight of 20 pounds 8 95 kg or less by Seagate for general freight shipment shall withstand a drop test from 48 inches 1 070 mm against a concrete floor or equivalent Cheetah 15K 7 SAS Product Manual Rev B Figure 8 Recommended mounting 6 4 4 2 Vibration a Operating normal The drive as installed for normal operation shall comply with the complete specified performance while subjected to continuous vibration not exceeding 10 300 Hz 1 0 G RMS 0 to peak 301 500 Hz 0 5 G RMS 0 to peak Vibration may be applied in the X Y or Z axis Operating abnormal Equipment as installed for normal operation shall not incur physical damage while subjected to periodic vibration not exceeding 15 minutes of duration at major resonant frequency Vibration occurring at these levels may degrade operational performance during the abnormal vibration period Specified operational performance will continue when normal operating vibration levels are resumed This assumes
59. ications are based on the following assumptions for Enterprise Storage System environ ments 8 760 power on hours per year 250 average on off cycles per year Operations at nominal voltages Systems will provide adequate cooling to ensure the case temperatures specified in Section 6 4 1 are not exceeded 5 2 2 Preventive maintenance No routine scheduled preventive maintenance is required 5 2 3 Hot plugging the drive When a disk is powered on by switching the power or hot plugged the drive runs a self test before attempting to communicate on its interfaces When the self test completes successfully the drive initiates a Link Reset starting with OOB An attached device should respond to the link reset If the link reset attempt fails or any time the drive looses sync the drive initiated link reset The drive will initiate link reset once per second but alternates between port A and B Therefore each port will attempt a link reset once per 2 seconds assuming both ports are out of sync If the self test fails the does not respond to link reset on the failing port Note It is the responsibility of the systems integrator to assure that no temperature energy voltage haz ard or ESD potential hazard is presented during the hot connect disconnect operation Discharge the static electricity from the drive carrier prior to inserting it into the system Caution The drive motor must come to a complete stop prior to changing the
60. ignaled This counter is referred to as the Failure History Counter There is a separate Failure History Counter for each attribute 5 2 5 Thermal monitor Cheetah 15K 7 drives implement a temperature warning system which 1 Signals the host if the temperature exceeds a value which would threaten the drive 2 Signals the host if the temperature exceeds a user specified value 3 Saves a S M A R T data frame on the drive which exceeds the threatening temperature value A temperature sensor monitors the drive temperature and issues a warning over the interface when the tem perature exceeds a set threshold The temperature is measured at power up and then at ten minute intervals after power up The thermal monitor system generates a warning code of 01 0B01 when the temperature exceeds the speci fied limit in compliance with the SCSI standard The drive temperature is reported in the FRU code field of mode sense data You can use this information to determine if the warning is due to the temperature exceeding the drive threatening temperature or the user specified temperature This feature is controlled by the Enable Warning EWasc bit and the reporting mechanism is controlled by the Method of Reporting Informational Exceptions field MRIE on the Informational Exceptions Control IEC mode page 1Ch The current algorithm implements two temperature trip points The first trip point is set at 68 C which is the maximum temperature limit acco
61. in this product manual A setting of zero 0 will result in the drive not performing error recovery For example suppose the read write recovery page has the RC bit set to 0 read retry count set to 4 and the recovery time limit field Mode Sense page 01 bytes 10 and 11 set to FF FF hex maximum A four LBA Read command is allowed to take up to 253 11 msec recovery time for each of the four LBAs in the command If the recovery time limit is set to 00 C8 hex 200 msec decimal a four LBA read command is allowed to take up to 200 msec for all error recovery within that command The use of the Recovery Time Limit field allows finer granularity on control of the time spent in error recovery The recovery time limit only starts counting when the drive is executing error recovery and it restarts on each command There fore each command s total recovery time is subject to the recovery time limit Note A recovery time limit of 0 will use the drive s default value of FF FF Minimum recovery time limit is achieved by setting the Recovery Time Limit field to 00 01 8 3 SAS system errors Information on the reporting of operational errors or faults across the interface is given in the SAS Interface Manual The SSP Response returns information to the host about numerous kinds of errors or faults The Receive Diagnostic Results reports the results of diagnostic operations performed by the drive Status returned by the drive to the initiator is described in t
62. l environments containing sulfurous gases chlorine and nitric oxide classes G and H per ASTM B845 However this accelerated testing cannot duplicate every potential application environment Users should use caution exposing any electronic components to uncontrolled chemical pollutants and corro sive chemicals as electronic drive component reliability can be affected by the installation environment The sil ver copper nickel and gold films used in Seagate products are especially sensitive to the presence of sulfide chloride and nitrate contaminants Sulfur is found to be the most damaging In addition electronic components should never be exposed to condensing water on the surface of the printed circuit board assembly PCBA or exposed to an ambient relative humidity greater than 95 Materials used in cabinet fabrication such as vulca nized rubber that can outgas corrosive compounds should be minimized or eliminated The useful life of any electronic equipment may be extended by replacing materials near circuitry with sulfide free alternatives 6 4 8 RoHS compliance statement The European Union Restriction of Hazardous Substances RoHS Directive restricts the presence of chemical substances including Lead Pb in electronic products effective July 2006 A number of parts and materials in Seagate products are procured from external suppliers We rely on the representations of our suppliers regarding the presence of RoHS substances in these
63. ltiple units are powered on simultaneously the peak starting current must be available to each device 4 Parameters other than spindle start are measured after a 10 minute warm up 5 No terminator power 6 2 1 Conducted noise immunity Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz Maximum allowed noise values given below are peak to peak measurements and apply at the drive power connector 5V 250 mV pp from O to 100 kHz to 20 MHz 12V 800 mV pp from 100 Hz to 8 KHz 450 mV pp from 8 KHz to 20 KHz 250 mV pp from 20 KHz to 5 MHz 6 2 2 Power sequencing The drive does not require power sequencing The drive protects against inadvertent writing during power up and down 6 2 3 Current profiles The 12V and 5V current profiles are shown below in the following figures Note All times and currents are typical See Tables 13 14 and 15 for maximum current requirements Cheetah 15K 7 SAS Product Manual Rev B 23 C2 and F1 12V spinup current profile gt gt e M AA AA AA AA Figure 1 Typical 600GB current profiles C2 and F1 12V spinup current gt gt A M A ME E E e e AAA AAA AAA AA A AAA AAA a E e e e A E A E E E E E 2 00 sidiv Figure 2 Typical 450GB current profiles 24 Cheetah 15K 7 SAS Product Manual Rev B C2 and F1 12V spinup current profile gt gt _ e
64. mized communications that are not available on the web These communications contain product launch EOL pricing promotions and other channel related information To learn more about the ben efits or to register go to spp seagate com any time from anywhere in the world Global Customer Support Presales Support Our Presales Support staff can help you determine which Seagate products are best suited for your specific application or computer system as well as product availability and compatibility Technical Support Seagate technical support is available to assist you online at support seagate com or through one of our call centers Have your system configuration information and your ST model product number available 62 Cheetah 15K 7 SAS Product Manual Rev B Customer Service Operations Warranty Service Seagate offers worldwide customer support for Seagate products Seagate distributors OEMs and other direct customers should contact their Seagate Customer Service Operations CSO representative for warranty related issues Resellers or end users of drive products should contact their place of purchase or Seagate war ranty service for assistance Have your serial number and model or part number available Data Recovery Services Seagate offers data recovery services for all formats and all brands of storage media Our data recovery ser vices labs are currently located throughout the world Additional information including an
65. n any drive part Altitude and atmospheric pressure specifications are referenced to a standard day at 58 7 F 14 8 C Maximum wet bulb temperature is 82 F 28 C 6 4 1 Temperature a Operating The maximum allowable continuous or sustained HDA case temperature for the rated Annualized Failure Rate AFR is 122 F 50 C The maximum allowable HDA case temperature is 60 C Occasional excur sions of HDA case temperatures above 122 F 50 C or below 41 F 5 C may occur without impact to the specified AFR Continual or sustained operation at HDA case temperatures outside these limits may degrade AFR Provided the HDA case temperatures limits are met the drive meets all specifications over a 41 F to 131 F 5 C to 55 C drive ambient temperature range with a maximum temperature gradient of 86 F 30 C per hour Air flow may be needed in the drive enclosure to keep within this range see Section 8 3 Operation at HDA case temperatures outside this range may adversely affect the drives ability to meet specifications To confirm that the required cooling for the electronics and HDA case is provided place the drive in its final mechanical configuration perform random write read operations and measure the HDA case temperature after it has stabilized 28 Cheetah 15K 7 SAS Product Manual Rev B b Non operating 40 to 158 F 40 to 70 C package ambient with a maximum gradient of 86 F 30 C per hour This specification assumes
66. n byte 02 hex value FF equates to the binary pattern 11111111 If there is a zero in any bit position in the field it means that bit is not changeable Since all of the bits in byte 02 are ones all of these bits are changeable The changeable values list can only be changed by downloading new firmware into the flash E PROM Note Because there are often several different versions of drive control firmware in the total population of drives in the field the Mode Sense values given in the following tables may not exactly match those of some drives The following tables list the values of the data bytes returned by the drive in response to the Mode Sense com mand pages for SCSI implementation see the SAS nterface Manual Definitions DEF Default value Standard OEM drives are shipped configured this way CHG Changeable bits indicates if default value is changeable Cheetah 15K 7 SAS Product Manual Rev B 49 10 3 2 1 MODE DATA HEADER 01 6e 00 10 00 00 00 08 BLOCK DESCRIPTOR 45 dd 2f bO 00 00 02 00 MODE PAGES DEF 81 0a cO Ob ff 00 00 00 0 CHG 81 Oa ff ff 00 00 00 00 f DEF 82 Oe 00 00 00 00 00 00 0 CHG 82 0e 00 00 00 00 00 00 O DEF 83 16 bb d 0 00 00 00 0 O C CHG 83 16 00 O 0 00 00 00 0 DEF 84 16 01 8a 9a 08 00 00 0 CHG 84 16 00 00 00 00 00 00 0 DEF 87 0a 00 Ob ff 00 00 00 0 CHG 87 Oa Of ff 00 00 00 00 0 DEF 88 12 14 00 ff ff 00 00 f
67. ne A unique data encryption key is used for each of the drive s possible16 data bands see Section 7 5 7 2 Controlled access The drive has two security partitions SPs called the Admin SP and the Locking SP These act as gate keepers to the drive security services Security related commands will not be accepted unless they also supply the correct credentials to prove the requester is authorized to perform the command 7 2 1 Admin SP The Admin SP allows the drive s owner to enable or disable firmware download operations see Section 7 4 Access to the Admin SP is available using the SID Secure ID password or the MSID Makers Secure ID password 7 2 2 Locking SP The Locking SP controls read write access to the media and the cryptographic erase feature Access to the Locking SP is available using the BandMasterX or EraseMaster passwords Since the drive owner can define up to 16 data bands on the drive each data band has its own password called BandMasterX where X is the number of the data band 0 through 15 34 Cheetah 15K 7 SAS Product Manual Rev B 7 2 3 Default password When the drive is shipped from the factory all passwords are set to the value of MSID This 32 byte random value is printed on the drive label and it can be read by the host electronically over the I O After receipt of the drive it is the responsibility of the owner to use the default MSID password as the authority to change all other passwords to uniqu
68. ng drives SEDs offer encryption and security services for the protection of stored data com monly known as protection of data at rest These drives are compliant with the Trusted Computing Group TCG Enterprise Storage Specifications as detailed in Section 2 4 The Trusted Computing Group TCG is an organization sponsored and operated by companies in the com puter storage and digital communications industry Seagate s SED models comply with the standards pub lished by the TCG To use the security features in the drive the host must be capable of constructing and issuing the following two SCSI commands Security Protocol Out Security Protocol In These commands are used to convey the TCG protocol to and from the drive in their command payloads 7 1 Data encryption Encrypting drives use one inline encryption engine for each port employing AES 128 data encryption in Cipher Block Chaining CBC mode to encrypt all data prior to being written on the media and to decrypt all data as it is read from the media The encryption engines are always in operation cannot be disabled and do not detract in any way from the performance of the drive The 32 byte Data Encryption Key DEK is a random number which is generated by the drive never leaves the drive and is inaccessible to the host system The DEK is itself encrypted when it is stored on the media and when it is in volatile temporary storage DRAM external to the encryption engi
69. nology support services Cheetah 15K 7 SAS Product Manual Rev B Cheetah 15K 7 SAS Product Manual Rev B 1 0 Scope This manual describes Seagate Technology LLC Cheetah SAS Serial Attached SCSI disk drives Cheetah 15K 7 drives support the SAS Protocol specifications to the extent described in this manual The SAS Interface Manual part number 100293071 describes the general SAS characteristics of Cheetah 15K 7 and other Seagate SAS drives The Self Encrypting Drive SED Users Guide part number 100515636 describes the interface general operation and security features available on SED drives Note Previous generations of Seagate Self Encrypting Drive models were called Full Disk Encryption FDE models before a differentiation between drive based encryption and other forms of encryp tion was necessary Model Number Capacity Self Encrypting Drive SED ST3600057SS 600 GB No ST345085788 450 GB No ST3300657SS 300 GB No ST3600957SS 600 GB Yes ST345075788 450 GB Yes ST330055788 300 GB Yes Cheetah 15K 7 SAS Product Manual Rev B 2 0 Standards compliance and reference documents The drive has been developed as a system peripheral to the highest standards of design and construction The drive depends on its host equipment to provide adequate power and environment for optimum performance and compliance with applicable industry and governmental regulations Special attention must be given in the
70. nts 19 Decision Feedback Equalizer 61 decrypt 34 default MSID password 35 defect and error management 37 defects 37 Deferred Auto Reallocation 40 deferred error handling 55 DEK 34 description 5 DFE 61 dimensions 33 disc rotation speed 8 drive 32 drive characteristics 8 Drive Locking 35 65 drive mounting 33 42 drive select 59 dual port support 44 E electrical description of connector 59 signal characteristics 60 specifications 19 electromagnetic compatibility 2 electromagnetic susceptibility 33 EMI requirements 2 encryption engine 34 encryption key 35 environment 41 environmental limits 28 requirements 12 environmental control 32 EraseMaster 34 error management 37 rates 12 errors 37 F FCC rules and regulations 2 features 6 interface 43 feed forward equalizer 61 FFE 61 firmware 6 corruption 47 firmware download port 35 flawed sector reallocation 6 Format command execution time function complete code 00 43 not supported code 05 43 reject code 04 43 G Global Data Band 35 Good status 55 gradient 29 ground shift noise 60 grounding 42 H HDA 41 42 head and disc assembly See HDA heads read write data 8 66 heat removal 41 heat source 41 host equipment 42 hot plugging the drive 13 humidity 29 humidity limits 28 Idle Read After Write 40 inquiry data 48 installation 41 interface commands supported 44 errorrate 12 errors 13 illustrated 56 physical 56 requireme
71. nts 43 intermediate condition met good status 56 intermediate good status 56 internal datarate 8 internal defects errors 37 internal drive characteristics 8 IRAW 40 J jumpers 41 L latency average rotational 8 9 Locking SP 34 LockOnReset 35 logical block address 10 logical block reallocation scheme 6 logical block size 6 9 logical segments 10 maintenance 12 Makers Secure ID 34 maximum delayed motor start 20 21 22 maximum start current 20 21 22 media description 6 Media Pre Scan 40 miscellaneous feature support Adaptive caching 55 Asynchronous event notification 55 Automatic contingent allegiance 55 Deferred error handling 55 Parameter rounding 55 Queue tagging 55 Reporting actual retry count 55 Cheetah 15K 7 SAS Product Manual Rev B Segmented caching 55 SMP 1 in Mode Select command 55 Synchronized locked spindle operation 55 Zero latency read 55 miscellaneous status support ACA active 56 ACA active faulted initiator 56 Busy 55 Check condition 55 Condition met good 55 Good 55 Intermediate condition met good 56 Intermediate good 56 Reservation conflict 56 Task set full 56 miscorrected media data 12 Mode sense data table 49 mounting 42 holes 42 orientations 41 MSID 34 35 N noise audible 2 noise immunity 23 non operating 29 30 31 temperature 29 non operating vibration 32 O office environment 32 operating 29 31 option selection 59 out of plane distortion 42 P package size
72. on of the fourth mounting point when a known force F is applied to the fourth point 9 4 Grounding Signal ground PCBA and HDA ground are connected together in the drive and cannot be separated by the user The equipment in which the drive is mounted is connected directly to the HDA and PCBA with no electri cally isolating shock mounts If it is desired for the system chassis to not be connected to the HDA PCBA ground the systems integrator or user must provide a nonconductive electrically isolating method of mount ing the drive in the host equipment Increased radiated emissions may result if you do not provide the maximum surface area ground connection between system ground and drive ground This is the system designer s and integrator s responsibility 42 Cheetah 15K 7 SAS Product Manual Rev B 10 0 Interface requirements This section partially describes the interface requirements as implemented on Cheetah 15K 7 drives Addi tional information is provided in the SAS Interface Manual part number 100293071 10 1 SAS features This section lists the SAS specific features supported by Cheetah 15K 7 drives 10 1 1 task management functions Table 17 lists the SAS task management functions supported Table 17 SAS task management functions supported Task name Supported Abort Task Yes Clear ACA Yes Clear task set Yes Abort task set Yes Logical Unit Reset Yes Query Task Yes 10 1 2 task managem
73. online request form and data loss prevention resources is available at http services seagate com index aspx Authorized Service Centers Seagate Service Centers are available on a global basis for the return of defective products See www sea gate com for the service center near you USA Canada Latin America support services For an extensive list of telephone numbers to technical support presales and warranty service in USA Canada Latin America including business hours go to the Contact Us page on www seagate com Global Customer Support Presales Technical and Warranty Support Call CenterToll freeDirect dial USA Canada and Mexico1 800 SEAGATE 1 405 324 4700 Data Recovery Services Call CenterToll freeDirect dialFAX USA Canada 1 800 475 0143 1 905 474 21621 800 475 0158 and Mexico 1 905 474 2459 Europe the Middle East and Africa Support Services For an extensive list of telephone numbers to technical support presales and warranty service in Europe the Middle East and Africa go to the Contact Us page on www seagate com Asia Pacific Support Services For an extensive list of telephone numbers to technical support presales and warranty service in Asia Pacific go to the Contact Us page on www seagate com Cheetah 15K 7 SAS Product Manual Rev B 63 64 Cheetah 15K 7 SAS Product Manual Rev B Index Numerics 12 volt pins 60 5 volt pins 60 6 Gbps 61 A abort task set function 43
74. ons This section provides information relating to the physical and electrical characteristics of the drive 6 1 AC power requirements None 6 2 DC power requirements The voltage and current requirements for a single drive are shown below Values indicated apply at the drive connector The standard drive models and the SED drive models have identical hardware however the security and encryption portion of the drive controller ASIC is enabled and functional in the SED models This represents a small additional drain on the 5V supply of about 30mA and a commensurate increase of about 150mW in power consumption There is no additional drain on the 12V supply Cheetah 15K 7 SAS Product Manual Rev B 19 Table 13 600 GB DC power requirements ST3600057SS ST3600057SS ST3600957SS ST3600957SS 3 Gbit mode 6 Gbit mode Notes Amps Amps Amps Amps Voltage 5V 12V 2 5V 12V 2 Regulation 5 5 5 2 5 5 2 Avg idle current HII 0 37 0 81 0 38 0 81 Maximum starting current peak DC DC 30 3 0 67 1 90 0 68 1 91 peak AC AC 30 3 0 98 3 82 0 98 3 88 Delayed motor start max DC 30 1 4 0 55 0 04 0 56 0 04 Peak operating current random read Typical DC 111161 1 0 44 1 15 0 45 1 17 Maximum DC 3e 1 0 49 1 20 0 51 1 21 Maximum DC peak 30 1 32 3 00 1 34 3 00 Peak operating current random write Typical DC 1116 1 0 51 1 03 0 53 1 04 Maximum DC 3e 1 0 5
75. r the following items which are incorporated at the manufacturing facility during production or packaged before shipping Some of the options available are not an exhaustive list of possible options Other capacities can be ordered depending on sparing scheme and sector size requested Single unit shipping pack The drive is normally shipped in bulk packaging to provide maximum protection against transit damage Units shipped individually require additional protection as provided by the single unit shipping pack Users planning single unit distribution should specify this option The Safety and Regulatory Agency Specifications part number 75789512 may be included with each stan dard OEM drive shipped Cheetah 15K 7 SAS Product Manual Rev B 7 4 0 Performance characteristics This section provides detailed information concerning performance related characteristics and features of Cheetah 15K 7 drives 4 1 Internal drive characteristics ST36000575S ST3450857SS ST3300657SS ST36009575S ST3450757SS ST3300557SS Drive capacity 600 450 300 Gbytes formatted rounded off value Read write data heads 8 6 4 Tracks per inch 165 000 165 000 165 000 TPI Peak bits per inch 1 361 1 361 1 361 KBPI Areal Density 225 225 225 Gbits inch Internal data rate 1 49 2 37 1 49 2 37 1 49 2 37 Gbits sec max Disk rotation speed 15k 15k 15k RPM Avg rotational latency 2 0 2 0 2 0 msec One Gbyte equals one billion bytes when referring
76. rding to the drive specification The second trip point is user selectable using the Log Select command The reference temperature parameter in the temperature log page see Table 12 Cheetah 15K 7 SAS Product Manual Rev B 15 can be used to set this trip point The default value for this drive is 68 C however you can set it to any value in the range of 0 to 68 C If you specify a temperature greater than 68 C in this field the temperature is rounded down to 68 C A sense code is sent to the host to indicate the rounding of the parameter field Table 12 Temperature Log Page ODh Parameter Code Description 0000h Primary Temperature 0001h Reference Temperature 5 2 6 Drive Self Test DST Drive Self Test DST is a technology designed to recognize drive fault conditions that qualify the drive as a failed unit DST validates the functionality of the drive at a system level There are two test coverage options implemented in DST 1 Extended test 2 Shorttest The most thorough option is the extended test that performs various tests on the drive and scans every logical block address LBA of the drive The short test is time restricted and limited in length it does not scan the entire media surface but does some fundamental tests and scans portions of the media If DST encounters an error during either of these tests it reports a fault condition If the drive fails the test remove it from service and return it to
77. rdous Substances RoHS The European Union Restriction of Hazardous Substances RoHS Directive restricts the presence of chemical substances including Lead Pb in electronic products effective July 2006 A number of parts and materials in Seagate products are procured from external suppliers We rely on the rep resentations of our suppliers regarding the presence of RoHS substances in these parts and materials Our supplier contracts require compliance with our chemical substance restrictions and our suppliers document their compliance with our requirements by providing material content declarations for all parts and materials for the disk drives documented in this publication Current supplier declarations include disclosure of the inclusion of any RoHS regulated substance in such parts or materials Cheetah 15K 7 SAS Product Manual Rev B 3 Seagate also has internal systems in place to ensure ongoing compliance with the RoHS Directive and all laws and regulations which restrict chemical content in electronic products These systems include standard operat ing procedures that ensure that restricted substances are not utilized in our manufacturing operations labora tory analytical validation testing and an internal auditing process to ensure that all standard operating procedures are complied with 2 4 Reference documents SCSI Commands Reference Manual Seagate part number 100293068 SAS Interface Manual Seagate part number 100293071 ANS
78. real estate for this band is taken from the Global Band An additional 14 Data Bands may be defined in a similar way Band2 through Band15 but before these bands can be allocated LBA space they must first be individually enabled using the EraseMaster password Data bands cannot overlap but they can be sequential with one band ending at LBA x and the next beginning at LBA x 1 Each data band has its own drive generated encryption key and its own user supplied password The host may change the Encryption Key see Section 7 6 or the password when required The bands should be aligned to 4K LBA boundaries 7 6 Cryptographic erase A significant feature of SEDs is the ability to perform a cryptographic erase This involves the host telling the drive to change the data encryption key for a particular band Once changed the data is no longer recoverable since it was written with one key and will be read using a different key Since the drive overwrites the old key with the new one and keeps no history of key changes the user data can never be recovered This is tanta mount to an instantaneous data erase and is very useful if the drive is to be scrapped or redispositioned 7 7 Authenticated firmware download In addition to providing a locking mechanism to prevent unwanted firmware download attempts the drive also only accepts download files which have been cryptographically signed by the appropriate Seagate Design Center Three conditions mu
79. s You can interrogate the drive through the host to determine the time remaining before the next scheduled mea surement and data logging process occurs To accomplish this issue a Log Sense command to log page Ox3E This allows you to control when S M A R T interruptions occur Forcing S M A R T with the RTZ command resets the timer Performance impact S M A R T attribute data is saved to the disk so that the events that caused a predictive failure can be recre ated The drive measures and saves parameters once every two hours subject to an idle period on the drive interfaces The process of measuring off line attribute data and saving data to the disk is uninterruptable The maximum on line only processing delay is summarized below Maximum processing delay On line only delay Fully enabled delay DEXCPT 0 PERF 1 DEXCPT 0 PERF 0 S M A R T delay times 42 milliseconds 163 milliseconds 14 Cheetah 15K 7 SAS Product Manual Rev B Reporting control Reporting is controlled by the MRIE bits in the Informational Exceptions Control mode page 1Ch Subject to the reporting method the firmware will issue to the host an 01 5Dxx sense code The error code is preserved through bus resets and power cycles Determining rate S M A R T monitors the rate at which errors occur and signals a predictive failure if the rate of degraded errors increases to an unacceptable level To determine rate error events are logged and compared to th
80. sinewave 60 Gs at a duration of 2 msec half sinewave when performing reads only Cheetah 15K 7 SAS Product Manual Rev B 29 b 30 Shock may be applied in the X Y or Z axis Shock is not to be repeated more than once every 2 seconds Operating abnormal Equipment as installed for normal operation does not incur physical damage while subjected to intermit tent shock not exceeding 40 Gs at a duration of 11 msec half sinewave Shock occurring at abnormal lev els may promote degraded operational performance during the abnormal shock period Specified operational performance will continue when normal operating shock levels resume Shock may be applied in the X Y or Z axis Shock is not to be repeated more than once every 2 seconds c Non operating The limits of non operating shock shall apply to all conditions of handling and transportation This includes both isolated drives and integrated drives The drive subjected to nonrepetitive shock not exceeding the three values below shall not exhibit device damage or performance degradation 80 Gs at a duration of 11 msec half sinewave 300 Gs at a duration of 2 msec half sinewave 150 Gs at a duration of 0 5 msec half sinewave Shock may be applied in the X Y or Z axis d Packaged disk drives shipped as loose load not palletized general freight will be packaged to withstand drops from heights as defined in the table below For additional details refer to Seagate specif
81. speed and is ready An attempt to do so results in a Check Condition status On drives requiring unique saved values the required unique saved values are stored into the saved val ues storage location on the media prior to shipping the drive Some drives may have unique firmware with unique default values also On standard OEM drives the saved values are taken from the default values list and stored into the saved values storage location on the media prior to shipping Current values Current values are volatile values being used by the drive to control its operation A Mode Select command can be used to change the values identified as changeable values Originally current values are installed from saved or default values after a power on reset hard reset or Bus Device Reset message Changeable values Changeable values form a bit mask stored in nonvolatile memory that dictates which of the current values and saved values can be changed by a Mode Select command A one 1 indicates the value can be changed A zero 0 indicates the value is not changeable For example in Table 10 3 2 1 refer to Mode page 81 in the row entitled CHG These are hex numbers representing the changeable values for Mode page 81 Note in columns 5 and 6 bytes 04 and 05 there is 00h which indicates that in bytes 04 and 05 none of the bits are changeable Note also that bytes 06 07 09 10 and 11 are not changeable because those fields are all zeros I
82. st be met before the drive will allow the download operation 1 The download must be an SED file A standard base drive non SED file will be rejected Cheetah 15K 7 SAS Product Manual Rev B 35 2 The download file must be signed and authenticated 3 As with a non SED drive the download file must pass the acceptance criteria for the drive For example it must be applicable to the correct drive model and have compatible revision and customer status 7 8 Power requirements The standard drive models and the SED drive models have identical hardware however the security and encryption portion of the drive controller ASIC is enabled and functional in the SED models This represents a small additional drain on the 5V supply of about 30mA and a commensurate increase of about 150mW in power consumption There is no additional drain on the 12V supply See the tables in Section 6 2 for power requirements on the standard non SED drive models 7 9 Supported commands The SED models support the following two commands in addition to the commands supported by the standard non SED models as listed in Table 19 Security Protocol Out B5h Security Protocol In A2h 36 Cheetah 15K 7 SAS Product Manual Rev B 8 0 Defect and error management Seagate continues to use innovative technologies to manage defects and errors These technologies are designed to increase data integrity perform drive self maintenance and validate proper drive op
83. supported A Support is available on special request Cheetah 15K 7 SAS Product Manual Rev B 47 10 3 1 Inquiry data Table lists the Inquiry command data that the drive should return to the initiator per the format given in the SAS Interface Manual Table 20 Cheetah 15K 7 inquiry data Bytes Data hex 0 15 00 00 xx 12 8B 00 PP 02 53 45 41 47 41 54 45 20 Vendor ID 16 31 53 54 33 36 30 30 30 35 37 53 53 20 20 20 20 20 Product ID 32 47 R R R R S S S S S SH SH S 00 00 oo 00 48 63 00 00 00 oo 00 oo oo 00 oo oo 00 oo 00 00 oo 00 64 79 00 00 00 oo 00 oo oo 00 oo 00 oo oo 00 00 00 00 80 95 00 00 oo oo oo 00 oo 00 oo 00 00 oo 00 oo 00 00 96 111 00 43 6F 70 79 72 69 67 68 74 20 28 63 29 20 32 Copyright 112 127 30 30 39 20 53 65 61 67 61 74 65 20 41 6C 6C 20 notice 128 143 72 69 67 68 74 73 20 72 65 73 65 72 76 65 64 20 ui Copyright year changes with actual year SCSI Revision support Refer to the appropiate SPC release documentation for definitions PP 10 Inquiry data for an Inquiry command received on Port A 30 Inquiry data for an Inquiry command received on Port B R Four ASCII digits representing the last fo
84. system recovery routines are available Operating abnormal translational random flat profile 5 500 Hz 0 75 G 0 to peak 10 300 Hz 0 0029 G Hz Non operating Cheetah 15K 7 SAS Product Manual Rev B 31 The limits of non operating vibration shall apply to all conditions of handling and transportation This includes both isolated drives and integrated drives The drive shall not incur physical damage or degraded performance as a result of continuous vibration not exceeding 5 22 Hz 0 25 G 0 to peak linear swept sine 0 5 octive min 22 350 Hz 3 G 0 to peak linear swept sine 0 5 octive min 350 500 Hz 1 G 0 to peak linear swept sine 0 5 octive min Vibration may be applied in the X Y or Z axis 6 4 5 Acoustics Sound power during idle mode shall be 3 4 bels typical when measured to ISO 7779 specification Sound power while operating shall be 3 8 bels typical wnen measured to ISO 7779 specification There will not be any discrete tones more than 10 dB above the masking noise on typical drives when mea sured according to Seagate specification 30553 001 There will not be any tones more than 24 dB above the masking noise on any drive 6 4 6 Air cleanliness The drive is designed to operate in a typical office environment with minimal environmental control 6 4 7 Corrosive environment Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to light industria
85. t current and total watts on the vertical axis To calculate BTUs per hour multiply watts by 3 4123 813450857 SS CURRENT POWER vs THROUGHPUT SAS 6 0GB Random 8 Block Reads 18 00 IMA 16 00 12 Vot A A Watts 14 00 0 0 50 0 100 0 150 0 200 0 250 0 300 0 350 0 400 0 I Os per Second Figure 5 ST3450857SS DC current and power vs input output operations per second Cheetah 15K 7 SAS Product Manual Rev B 27 ST3300657SS model Typical power dissipation under idle conditions in 6Gb operation is 8 71 watts 29 72 BTUs per hour To obtain operating power for typical random read operations refer to the following I O rate curve see Figure 4 Locate the typical I O rate for a drive in your system on the horizontal axis and read the corresponding 5 volt current 12 volt current and total watts on the vertical axis To calculate BTUs per hour multiply watts by 3 4123 813300657 SS CURRENT POWER vs THROUGHPUT SAS 6 0GB Random 8 Block Reads 1 600 16 00 e SIMA 1 400 14 00 12 Volt A A Watts 1 200 12 00 m 1 000 10 7 5 3 E 0 800 200 E x 0 600 6 00 0 400 400 0 200 2 00 0 000 0 00 0 0 50 0 100 0 150 0 200 0 250 0 300 0 350 0 400 0 1Os per Second Figure 6 ST3300657SS DC current and power vs input output operations per second 6 4 Environmental limits Temperature and humidity values experienced by the drive must be such that condensation does not occur o
86. t equal to 1 and does not receive a NOTIFY ENABLE SPINUP primitive within 5 seconds the drive fails the START STOP UNIT command The START STOP UNIT command may be used to command the drive to stop the spindle Stop time is 30 sec onds maximum from removal of DC power There is no power control switch on the drive 4 4 Prefetch multi segmented cache control The drive provides a prefetch read look ahead and multi segmented cache control algorithms that in many cases can enhance system performance Cache refers to the drive buffer storage space when it is used in cache operations To select this feature the host sends the Mode Select command with the proper values in the applicable bytes in page 08h Prefetch and cache operations are independent features from the standpoint that each is enabled and disabled independently using the Mode Select command however in actual opera tion the prefetch feature overlaps cache operation somewhat as described in sections 4 5 1 and 4 5 2 All default cache and prefetch mode parameter values Mode Page 08h for standard OEM versions of this drive family are given in Section 10 3 2 1 4 5 Cache operation Note Refer to the SAS nterface Manual for more detail concerning the cache bits Of the 16 Mbytes physical buffer space in the drive approximately 13 000 kbytes can be used as a cache The buffer is divided into logical segments from which data is read and to which data is written The drive keeps
87. te Typical DC 1116 1 0 95 0 69 0 98 0 67 Maximum DC 30 1 0 99 0 70 1 02 0 68 Maximum DC peak 30 1 26 1 10 1 30 1 12 Cheetah 15K 7 SAS Product Manual Rev B 21 Table 15 300 GB DC power requirements ST3300657SS ST3300657SS ST3300557SS ST3300557SS 3 Gbit mode 6 Gbit mode Notes Amps Amps Amps Amps Voltage 5V 12V 2 5V 12V 2 Regulation 5 15 15 2 15 15 2 Avg idle current 1 7 0 34 0 58 0 35 0 58 Maximum starting current peak DC DC 30 3 0 53 1 92 0 54 1 92 peak AC AC 30 3 0 98 3 82 0 86 3 98 Delayed motor start max DC 30 1 4 0 47 0 04 0 48 0 04 Peak operating current random read Typical DC 1 6 1 0 41 0 88 0 42 0 90 Maximum DC 30 1 0 42 0 95 0 43 0 95 Maximum DC peak 30 1 18 2 78 1 20 2 74 Peak operating current random write Typical DC 11161 1 0 48 0 80 0 49 0 81 Maximum DC 3c 1 0 49 0 83 0 51 0 82 Maximum DC peak 3c 1 18 2 68 1 20 2 66 Peak operating current sequential read Typical DC 11161 1 0 91 0 59 0 92 0 59 Maximum DC 30 1 0 93 0 60 0 94 0 61 Maximum DC peak 3c 1 20 0 98 1 24 1 00 Peak operating current sequential write Typical DC 1 6 1 0 89 0 58 0 90 0 59 Maximum DC 30 1 0 93 0 60 0 94 0 60 Maximum DC peak 30 1 22 0 98 1 22 0 96 1 2 S 4 22 Measured with average reading DC ammeter or equivalent sampling scope Instantaneous 12V curr
88. to hard drive capacity Accessible capacity may vary depending on operating environment and formatting 4 2 Seek time See Section 10 4 1 SAS physical interface on page 56 and the SAS Interface Manual part number 100293071 for additional timing details 4 2 1 Access time Not Including controller overhead 2 msec Read Write Average Typical 3 4 3 9 Single track Typical 0 2 0 44 Full stroke Typical 6 6 7 4 1 Typical access times are measured under nominal conditions of temperature voltage and horizontal orientation as measured on a representative sample of drives 2 Access to data access time latency time 8 Cheetah 15K 7 SAS Product Manual Rev B 4 2 2 Format command execution time minutes When changing sector sizes the format times shown below may need to be increased by 30 minutes ST3600057SS ST3450857SS ST3300657SS Maximum with verify 119 90 58 Maximum without verify 60 45 29 Note There is approximately a 1 5 increase in time to format a SED drive versus a non SED drive of the same capacity Execution time measured from receipt of the last byte of the Command Descriptor Block CDB to the request for a Status Byte Transfer to the Initiator excluding connect disconnect 4 2 3 General performance characteristics Sustainable disk transfer rate Minimum 122 Mbytes sec typical Maximum 204 Mbytes sec typical SAS Interface maximum instantaneous transfer rate 600 Mbytes sec per port Logical block si
89. tocol as described in the ANSI specifications this document and the SAS Interface Manual part number 100293071 which describes the general interface characteristics of this drive Cheetah 15K 7 drives are classified as intelligent peripherals and provide level 2 conformance highest level with the ANSI SCSI 1 standard The SAS connectors cables and electrical inter face are compatible with Serial ATA SATA giving future users the choice of populating their systems with either SAS or SATA hard disk drives This allows you to continue to leverage your existing investment in SCSI while gaining a 3Gb s serial data transfer rate Cheetah 15K 7 SAS SED models have provisions for Security of Data at Rest based on the standards defined by the Trusted Computing Group see www trustedcomputinggroup org Note Never disassemble the HDA and do not attempt to service items in the sealed enclosure heads media actuator etc as this requires special facilities The drive does not contain user replaceable parts Opening the HDA for any reason voids your warranty Cheetah 15K 7 drives use a dedicated landing zone at the innermost radius of the media to eliminate the pos sibility of destroying or degrading data by landing in the data zone The heads automatically go to the landing zone when power is removed from the drive An automatic shipping lock prevents potential damage to the heads and disks that results from movement dur ing shipping and handlin
90. tures Supported Feature or condition N Automatic contingent allegiance Asynchronous event notification Synchronized locked spindle operation Segmented caching Zero latency read Queue tagging up to 64 queue tags supported Deferred error handling Parameter rounding controlled by Round bit in Mode Select page 0 Reporting actual retry count in Extended Sense bytes 15 16 and 17 Adaptive caching zi izi zz SMP 1 in Mode Select command needed to save RPL and rotational offset bytes Table 22 Miscellaneous status Supported Status Y Good Y Check condition Y Condition met good Y Busy Cheetah 15K 7 SAS Product Manual Rev B 55 Table 22 Miscellaneous status Supported Status Y Intermediate good Intermediate condition met good Reservation conflict Task set full ACA active Z Z lt lt lt ACA active faulted initiator 10 4 1 SAS physical interface Figure 11 shows the location of the SAS device connector J1 Figures 12 and 13 provide the dimensions of the SAS device Details of the physical electrical and logical characteristics are provided within this section The operational aspects of Seagate s SAS drives are provided in the SAS Interface Manual cS LI 9 CF SAS Interface gt connector Figure 11 Physical interface 56 Cheetah 15K 7
91. ur digits of the product firmware release number S Eight ASCII digits representing the eight digits of the product serial number Bytes 18 through 26 reflect model of drive The table above shows the hex values for Model ST3600057SS 48 Cheetah 15K 7 SAS Product Manual Rev B 10 3 2 Mode Sense data The Mode Sense command provides a way for the drive to report its operating parameters to the initiator The drive maintains four sets of mode parameters 1 Default values Default values are hard coded in the drive firmware stored in flash E PROM nonvolatile memory on the drive s PCB These default values can be changed only by downloading a complete set of new firmware into the flash E PROM An initiator can request and receive from the drive a list of default values and use those in a Mode Select command to set up new current and saved values where the values are change able Saved values Saved values are stored on the drive s media using a Mode Select command Only parameter values that are allowed to be changed can be changed by this method Parameters in the saved values list that are not changeable by the Mode Select command get their values from default values storage When power is applied to the drive it takes saved values from the media and stores them as current val ues in volatile memory It is not possible to change the current values or the saved values with a Mode Select command before the drive achieves operating
92. ures Automatic data encryption decryption on all writes and reads to and from the media Controlled access Random number generator Drive locking Two independent data bands which each have it s own ownership credential and encryption key Cryptographic erase of user data for a drive that will be repurposed or scrapped Authenticated firmware download 3 2 Media description The media used on the drive has an aluminum substrate coated with a thin film magnetic material overcoated with a proprietary protective layer for improved durability and environmental protection 3 3 Performance Programable multi segmented cache buffer 600 Mbytes sec maximum instantaneous data transfers 15k RPM spindle Average latency 2 0 msec Background processing of queue Supports start and stop commands spindle stops spinning Adaptive seek velocity improved seek performance 6 Cheetah 15K 7 SAS Product Manual Rev B Note There is no significant performance difference between Self Encrypting Drive and standard non Self Encrypting Drive models 3 4 Reliability 1 600 000 hour MTBF Annualized Failure Rate AFR of 0 55 Incorporates industry standard Self Monitoring Analysis and Reporting Technology S M A R T 5 year warranty 3 5 Formatted capacities Standard OEM models are formatted to 512 bytes per block The block size is selectable at format time and must be one of the supported sizes listed in the table below Sea
93. use BMS functions for bursts of 800ms and then suspends activity for 100ms to allow other background functions to operate BMS interrupts immediately to service host commands from the interface bus while performing reads BMS will complete any BMS initiated error recovery prior to returning to service host initiated commands Overhead associated with a return to host servicing activity from BMS only impacts the first command that interrupted BMS this results in a typical delay of about 1 ms 8 5 Media Pre Scan Media Pre Scan is a feature that allows the drive to repair media errors that would otherwise have been found by the host system during critical data accesses early in the drive s life The default setting for Media Pre Scan is enabled on standard products Media Pre Scan checks each write command to determine if the destination LBAs have been scanned by BMS If the LBAs have been verified the drive proceeds with the normal write command If the LBAs have not been verified by BMS Pre Scan will convert the write to a write verify to certify that the data was properly written to the disk Note During Pre Scan write verify commands write performance may decrease by 50 until Pre Scan completes Write performance testing should be performed after Pre Scan is complete This may be checked by reading the BMS status To expedite the scan of the full pack and subsequently exit from the Pre Scan period BMS will begin scanning immediately when th
94. ve Scotts Valley California 95066 4544 USA Publication Number 100516226 Rev B Printed in USA
95. y located on a SAS backpanel See Section 10 4 1 for additional information about these connectors Power is supplied through the SAS connector The drive is shipped from the factory low level formatted in 512 byte logical blocks You need to reformat the drive only if you want to select a different logical block size 9 1 Drive orientation The drive may be mounted in any orientation All drive performance characterizations however have been done with the drive in horizontal disks level and vertical drive on its side orientations which are the two pre ferred mounting orientations 9 2 Cooling Cabinet cooling must be designed by the customer so that the ambient temperature immediately surrounding the drive will not exceed temperature conditions specified in Section 6 4 1 Temperature The rack cabinet or drawer environment for the drive must provide heat removal from the electronics and head and disk assembly HDA You should confirm that adequate heat removal is provided using the temper ature measurement guidelines described in Section 6 4 1 Forced air flow may be required to keep temperatures at or below the temperatures specified in Section 6 4 1 in which case the drive should be oriented or air flow directed so that the least amount of air flow resistance is created while providing air flow to the electronics and HDA Also the shortest possible path between the air inlet and exit should be chosen to minimize the travel l
96. zes Default is 512 byte data blocks Sector sizes variable to 512 520 and 528 kbytes Read write consecutive sectors on a track Yes Flaw reallocation performance impact for flaws reallocated at format time using Negligible the spare sectors per sparing zone reallocation scheme Average rotational latency 2 0 msec Assumes system ability to support the rates listed and no cable loss 1 MB sec 1 000 000 bytes sec 4 3 Start stop time The drive accepts the commands listed in the SAS Interface Manual less than 3 seconds after DC power has been applied If the drive receives a NOTIFY ENABLE SPINUP primitive through either port and has not received a START STOP UNIT command with the START bit equal to 0 the drive becomes ready for normal operations within 20 seconds excluding the error recovery procedure If the drive receives a START STOP UNIT command with the START bit equal to 0 before receiving a NOTIFY ENABLE SPINUP primitive the drive waits for a START STOP UNIT command with the START bit equal to 1 After receiving a START STOP UNIT command with the START bit equal to 1 the drive waits for a NOTIFY ENABLE SPINUP primitive After receiving a NOTIFY ENABLE SPINUP primitive through either port the drive becomes ready for normal operations within 20 seconds excluding the error recovery procedure Cheetah 15K 7 SAS Product Manual Rev B 9 If the drive receives a START STOP UNIT command with the START bit and IMMED bi

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