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Seagate EE25 Series ST373455LC-RF hard disk drive

1. Seagate E Product Manual Cheetah 15K 5 SCSI ST3300655LW ST3300655LC ST3146855LW ST3146855LC ST373455LW ST373455LC 100384776 Rev J May 2010 2010 Seagate Technology LLC All rights reserved Publication number 100384776 Rev J May 2010 Seagate Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and or other countries Cheetah SeaTools and SeaTDD are either trade marks 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 owners No part of this publication may be reproduced in any form without written permission of Seagate Technology LLC Call 877 PUB TEK1 877 782 8651 to request permission One gigabyte or GB equals one billion bytes when referring to hard drive capacity Accessible capacity may vary depending on operating environment and formatting Quantitative usage examples for various applications are for illustrative purposes Actual quantities will vary based on various factors including file size file format features and application software Seagate reserves the right to change without notice product offerings or specifications 1 0 2 0 3 0 4 0 5 0 6 0 7 0 Contents Seagate Technology support ServiceS ooocoooocccooo ees 1 A A ARR Banat Silane Round 2 Applicable s
2. Annualized Failure Rate AFR of 0 62 Increased LSI circuitry integration Incorporates industry standard Self Monitoring Analysis and Reporting Technology S M A R T 5 year warranty 4 5 Formatted capacities Standard OEM models are formatted to 512 bytes per block The sector size is selectable at format time Users having the necessary equipment may modify the data block size before issuing a format command and obtain different formatted capacities than those listed To provide a stable target capacity environment and at the same time provide users with flexibility if they choose Seagate recommends product planning in one of two modes 1 Seagate designs specify capacity points at certain sector 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 ST3300655LW ST3146855LW ST373455LW ST3300655LC ST3146855LC ST373455LC Sector Size Decimal Hex Decimal Hex Decimal Hex 512 585 937 500 22ECB25C 286 749 488 11177330 143 374 744 88BB998 514 574 712 644 22416B44 282 050 768 10CFCODO 141 025 384 867E068 520 573 653 847 22314357 280 790 184 10BC84A8 140 395 092 85E4254 522 570 053 000 21FA5188 279 041 740 10A1D6CC 139 463 602 8500BB2 524 566 007 800
3. D EF CHG R 81 81 81 82 82 82 83 83 83 84 1 ENS 0a 0a 0a 0e 0e 0e 84 16 84 1 87 87 87 88 88 88 8a 8a 8a 19 19 19 9a 9a 9a 9c 9c 9c 80 80 80 0a 0a 0a 12 12 12 0a 0a 0a 06 06 06 0a 0a 0a 0a 0a 0a 06 06 06 cO cO fE 80 80 fE 34 34 00 01 01 00 00 00 Of 10 14 a5 02 02 03 01 01 00 00 00 00 10 10 9d 00 00 7 Ob Ob ff 80 80 EE 2c 2c 00 22 22 00 Ob Ob ff 00 00 00 00 00 0 00 00 00 02 02 03 00 00 Of 00 00 40 Ef ff 00 00 00 00 00 00 00 64 64 00 ff ff 00 ff ff 00 00 00 00 ff ff ff 00 00 ff 00 00 ff Of Of Of EAD CAPACITY DATA E HEADER DATA 10 08 11 17 73 30 00 00 02 00 ENSE PAGES DATA 00 00 00 0a 0a 00 00 00 00 04 04 00 00 00 00 tf ff 00 00 00 00 ff ff tf 00 00 tf 00 00 Ef 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff 00 00 00 00 00 00 00 00 ff 00 00 ff 00 00 00 11 17 73 2 00 00 02 00 Cheetah 15K 5 SCSI Product Manual Rev J 00 00 00 00 00 00 1c lc 00 00 00 00 00 00 00 00 00 tf 00 00 00 00 00 00 0a 05 ff 00 00 tf 00 00 00 05 05 ff 00 00 00 00 00 00 00 00 00 00 00 00 f
4. Printer External modem Mouse Although the test system with this Seagate model complies to the directives standard s we cannot guarantee that all systems will comply The computer manufacturer or system integrator shall confirm EMC compliance and provide CE Marking and C Tick 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 MIC If this model has the Korean Ministry of Information and Communication MIC logo it complies with paragraph 1 of Article 11 of the Electromagnetic Compatibility EMC Control Regulation and meets the Electromagnetic Compatibility Framework requirements of the Radio Research Laboratory RRL Ministry of Information and Communication Republic of Korea This drive has been tested and complies with the Electromagnetic Interference Electromagnetic Susceptibility EMI EMS for Class B products Taiwanese BSMI If this model has the Chinese National Standard CNS 13438 marking it compl
5. aln n For ID selection use SCSIID 7 az n jumpers as shown or connect a cable for scsilp a ME ET remote switching as ol E E M shown below SCSIID 9 ala SCSIID 102 f a zn SCSIID 112 IE IW SCSIID 122 ITTI scsiip 13 3 055 SCSIID 142 TET scsiip 15 SE SE Reserved 3 0g Pins 1 3 5 and 7 are Tum Ec tee Optional connections to Host 4 switching circuits in host Alternate N C l equipment to establish Usage Plug poe 4 Y Remote Switches 5V NC Pins 2 4 6 and 8 are ZAR i normally not grounded I T Ground 2 They are driven low ground I CEDE for 250 ms after a Reset Drive Activity LED or PWR ON to allow drive to Vets ee ee e ENDE Cr E a VR Me pm 4 Dashed area is optional host circuitry external to the drive connected to host supplied optional usage plug read SCSI ID selected Figure 10 J5 jumper header on LW models only 40 Cheetah 15K 5 SCSI Product Manual Rev J enlarged to show detail ED RD di Pin 1 d Reserved J6 1 5 P l E TPDMWS PDSEPE Term Power to SCSI Bus H err Parity Disable nM Delay Motor Start aa Enable Remote Motor Start m m m Write Protect Force Single ended Bus Mode AF Figure 11 J6 option select header on LW models only 9 1 1 Notes for Figures 10 and 11 1 2 3 4 5 6 Notes e
6. 04h 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 46 lt lt lt lt lt lt lt lt Z lt lt lt lt lt Z lt Z Z Z Z Cheetah 15K 5 SCSI Product Manual Rev J Table 8 Commands supported by Cheetah 15K 5 SCSI family drive Continued Command name Command code Supported by SCSI 2 3 Lock unlock cache 36h Log Select 4Ch PCR bit DU bit DS bit TSD bit ETC bit TMC bit LP bit Log Sense 4Dh Application Client Log page OFh Background Medium Scan page 15h 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 Start stop Cycle Counter page OEh Temperature page ODh Verify Error Counter page 05h Write
7. 25 E T e D Figure 8 LW mounting configuration dimensions Cheetah 15K 5 SCSI Product Manual Rev J 33 pe ede I T Z 11 Z L m E H gt J gt E B Notes R REF nz 1 Mounting holes are 6 32 UNC 2B three on each side and four on the bottom F Max screw penetration into side of drive A is 0 15 in 3 81 mm Max screw T tightening torque is 6 0 in Ib 3 32 nm HP 0 FE with minimum full thread engagement of Z 0 12 in 3 05 mm C X Di imension Table U X Inches Millimeters rx Tp A 1 028 max 26 10 max B 5 787 max 147 00 max P C 4 000 010 101 60 25 D 3 750 010 95 25 25 E 125 010 3 18 25 E 1 750 010 44 45 25 H 1 122 020 28 50 50 J 4 000 010 101 60 25 F K 250 010 6 35 25 1 L 1 688 010 41 60 25 M 181 4 60 I ES N 040 1 02 P 1 625 020 41 28 50 R 2 618 66 50 S 276 7 00 T 015 max 0 38 max U 015 max 0 38 max E D gt Figure 9 LC mounting configuration dimensions 34 Cheetah 15K 5 SCSI Product Manual Rev J 8 0 Defect
8. All drive perfor mance characterization however has been done with the drive in horizontal discs level and vertical drive on its side orientations and these are the two preferred mounting orientations 9 3 Cooling The host enclosure must provide heat removal from the drive You should confirm that the host enclosure is designed to ensure that the drive operates within the temperature measurement guidelines described in Sec tion 7 4 1 In some cases forced airflow may be required to keep temperatures at or below the temperatures specified in Section 7 4 1 If forced air is necessary possible air flow patterns are shown in Figure 12 The air flow patterns are created by 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 guidelines of Section 7 4 1 are met Le 2T gt Above unit La of 2 ere Under unit Note Air flows in the direction shown back to front or in reverse direction front to back a Z d Above unit Under unit s Note Air flows in the direction shown or Sa in reverse direction side to side Figure 12 Air flow suggested Cheetah 15K 5 SCSI Product Manual Rev J 43 9 4 Drive mounting When mounting the drive using the bottom holes x y plane in Figure 7 care must be taken to ensure that the drive is not physically distorted due to a stiff non flat mounting
9. Cheetah 15K 5 SCSI Product Manual Rev J 9 5 0 Performance characteristics 5 1 Internal drive characteristics transparent to user ST3300655LW ST3146855LW ST373455LW ST3300655LC ST3146855LC ST373455LC Drive capacity 300 0 146 8 73 4 GBytes formatted Read write heads 8 4 2 Tracks surface total 74 340 74 340 74 340 Tracks user accessible Tracks inch 125 000 125 000 125 000 TPI Peak bits inch 890k 890k 890k BPI Areal Density 110 110 110 Gbits inch Internal data rate 960 to 1607 960 to 1607 960 to 1607 Mbits sec variable with zone Disc rotational speed 15k 15k 15k rpm Average rotational latency 2 0 2 0 2 0 msec One Gbyte equals one billion bytes when referring to hard drive capacity Accessible capacity may vary depending on operating environment and formatting Rounded off value 5 2 SCSI performance characteristics visible to user The values given in Section 5 2 1 apply to all models of the Cheetah 15K 5 SCSI family unless otherwise spec ified Refer to the Parallel SCSI Interface Manual for additional timing details 10 Cheetah 15K 5 SCSI Product Manual Rev J 5 2 1 Seek time Not including controller overhead msec 2 Read Write Average Typical 3 5 4 0 Single Track Typical 0 2 0 4 Full Stroke Typical 6 8 7 5 1 Typical access times are measured under nominal conditions of temperature volt age and horizontal orientation as measured on a representative sample of drives 2 Access to data a
10. FCC rules and regulations 3 firmware 51 flat ribbon cable 68 flaw reallocation 11 format 49 format command 11 format time 11 formatting 39 front panel 33 front panel LED 68 G gradient 29 ground return 23 grounding 44 H hard reset 51 HDA 6 44 heat removal 43 host 42 49 58 61 host adapter 39 adapter initiator 61 host backplane wiring 58 host equipment 44 59 60 DC power 60 host I O signal 39 host system 39 host system malfunction 14 host drive operational interface 14 hot plug 7 16 humidity 29 I O connector 58 identified defect 35 Idle Read After Write 38 Input characteristics 69 inquiry command 50 inquiry vital product data 50 installation 39 installation guide 9 installation instructions 39 instantaneous current peak 23 integrated Ultra1 Ultra2 SCSI controller 7 interface cable length 61 interface data 11 interface requirements 45 Cheetah 15K 5 SCSI Product Manual Rev J interface timing 14 internal data rate 10 IRAW 38 J J1 auxiliary 39 jumper 9 39 41 42 68 jumper function description 42 jumper header 41 jumper plug type 39 L landing zone 7 LED 74 logical block address 12 logical characteristics 56 logical segments 12 low voltage differential LVD drivers and receivers 7 LVD 68 LVD interface receiver circuits 69 mating connector 57 59 60 mating flat cable connector 60 maximum current requirements 24 maximum operating current 23 maximum st
11. P and G lists may be referenced by the initiator using the Read Defect Data command see the SCSI Commands Reference Manual 8 2 Drive error recovery procedures Whenever an error occurs during drive operation the drive if programmed to do so performs error recovery procedures to attempt to recover the data The error recovery procedures used depend on the options previ ously set up in the error recovery parameters mode page Error recovery and defect management may involve the use of several SCSI commands the details of which are described in the SCSI Interface Product Manual The drive implements selectable error recovery time limits such as are required in video applications For addi tional information on this refer to the Error Recovery Page table in the SCSI Commands Reference Manual which describes the Mode Select Mode Sense Error Recovery parameters The error recovery scheme supported by the drive provides a means 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 via 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 via the Read Retry Count or Write Retry Count bytes in the Error Recovery Mode Page The drive firmware error recovery algorithms consist of 11 levels for read recover
12. 01 00 e6 00 aa 40 00 00 00 CHG 83 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 SAV 84 16 01 22 64 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3a a7 00 00 DEF 84 16 01 22 64 02 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 SAV 87 0a 00 Ob ff 00 00 00 00 00 ff ff DEF 87 0a 00 0b ff 00 00 00 00 00 ff ff CHG 87 Oa Of ff 00 00 00 00 00 00 ff ff SAV 88 12 14 00 ff ff 00 00 ff ff ff ff 80 20 00 00 00 00 00 00 DEF 88 12 14 00 ff ff 00 00 ff ff ff ff 80 20 00 00 00 00 00 00 CHG 88 12 a5 00 00 00 ff ff ff ff 00 00 20 00 00 00 00 00 00 00 SAV 8a 0a 02 00 00 00 00 00 00 00 02 dl DEF 8a 0a 02 00 00 00 00 00 00 00 02 d1 CHG 8a 0a 03 0 00 00 00 00 00 00 00 00 SAV 19 06 01 00 ff ff 00 00 DEF 19 06 01 00 ff ff 00 00 CHG 19 06 00 00 ff ff 00 00 SAV 9a Oa 00 02 00 00 00 Oa 00 00 00 04 DEF 9a 0a 00 02 00 00 00 05 00 00 00 04 CHG 9a 0a 00 03 ff ff ff ff 00 00 00 00 SAV 9c 0a 10 00 00 00 00 00 00 00 00 01 DEF 9c 0a 10 00 00 00 00 00 00 00 00 01 CHG 9e 0a 9d 0f ff FE ff ff ff ff ff ff SAV 80 06 00 00 Of 00 00 00 DEF 80 06 00 00 Of 00 00 00 CHG 80 06 f7 40 Of 00 00 00 READ CAPACITY DATA 08 8b b9 97 00 00 02 00 54 Cheetah 15K 5 SCSI Product Manual Rev J 10 4 SCSI bus conditions and miscellaneous features supported Asynchronous SCSI bus conditions supported by the drive are listed below These conditions ca
13. 9 4 5 4 0 12 us 1 us Next CDB Byte Access Byte 10 of 10 T23 10 10 4 5 4 0 12 us 1 us Data In Byte Transfer parameter T24 4 5 12 0 04 us Data Out Byte Transfer parameter T25 4 5 13 0 04 us Next Data In Byte Access parameter T26 4 5 12 0 12 us Next Data Out Byte Access parameter T27 4 5 13 0 12 us Data In Byte Transfer media 2 T28 4 5 12 0 04 us Data Out Byte Transfer media 2 T29 4 5 13 0 04 us Next Data In Byte access media 2 T30 4 5 12 0 12 us Next Data Out Byte access media 2 T31 4 5 13 0 12 us MSG IN Byte Transfer T32 4 5 5 7 8 14 15 0 04 us MSG OUT Byte Transfer T33 4 5 2 0 04 us STATUS Byte Transfer T34 4 5 5 8 15 0 04 us Synchronous Data Transfer Characteristics Request Signal Transfer Period 3 various 800 ns max Notes 1 See the Timing examples section of the Parallel SCSI Interface Manual 2 Maximum SCSI asynchronous interface transfer rate is given in Section 5 2 3 of this manual 3 Synchronous Transfer Period is determined by negotiations between an Initiator and a Drive The Drive is capable of setting periods as given in Section 10 5 See also the Synchronous data transfer section and the Extended messages section of the Parallel SCSI Interface Manual for a description of synchronous data transfer operation Cheetah 15K 5 SCSI Product Manual Rev J 73 10 11 Drive activity LED The following table provides drive activity LED status Table 25 Dri
14. Manual Rev J 8 0 9 0 10 0 7 4 Environmental limits ou A ed es Be elut 29 7 4 1 Temperate oo rece A Dade ate etalk eee hamlets eed 29 7 4 2 Relative humidity 0 0 0 cece ete 29 7 4 3 Effective altitude sea level lesse 29 7 4 4 Shock and vibration llle eh 30 7 4 5 Air cleanliness usos ees ee eR EE Lad RUE ba NEUE EIN Re E EAR EFIE d 32 7 4 6 Corrosive environment lisse 32 7 4 7 ACOUSTICS iet e Uu ae D ESL rs Rd te Me Roe Ad BN el sot 33 7 4 8 Electromagnetic susceptibility llle 33 7 5 Mechanical specifications 0 0 aaua aaau eaaa 33 Defect and error management slseeeeeeeeeeee n nn n n nnn 35 8 1 Drive internal defects a a auauua nananana n 35 8 2 Drive error recovery procedures 0 cee eee 35 8 3 SCSI systems errors ooo 37 8 4 Background Media Scan llis n 37 8 5 Media Pre S an ess sccsnpieidethneEceBw4e a NiG Red GU FEAR Aa 37 8 6 Deferred Auto Reallocation liiillseeleee eh 38 8 7 Idle Read After Write ye esinen aa APERE IRI IR IIR 38 Installation ee bi A cei eh hee ae 39 9 1 Drive ID option select header 1 1 0 eee 39 9 1 1 Notes for Figures 10 and 11 ee auwe EKAA eee 41 9 1 2 F nction description ei DRE aa ed et Reis ranita 42 9 2 Drive orieritation oru meii Mes Pea ee dedi NEM Pelee week REPRE NS 43 9 3 Cooling eet rns a eee icut t EATER ee atn Saut d ret c SE T et 43 9 4 Drive mouritirgz ism nii
15. ONLINE SUPPORT and SERVICES For information regarding products and services visit http www seagate com www en us about contact_us Available services include Presales amp Technical support Global Support Services telephone numbers amp business hours Authorized Service Centers For information regarding Warranty Support visit http www seagate com www en us support warranty amp returns assistance For information regarding Data Recovery Services visit http www i365 com For Seagate OEM amp Distribution partner portal visit https direct seagate com portal system For Seagate reseller portal visit http sop seagate com Cheetah 15K 5 SCSI Product Manual Rev J 2 0 Scope This manual describes Seagate Technology LLC Cheetah 15K 5 SCSI disc drives Cheetah 15K 5 SCSI drives support the small computer system interface SCSI as described in the ANSI SCSI SPI 4 interface specifications to the extent described in this manual The SCSI Interface Manual part number 100293069 describes general SCSI interface characteristics of this and other families of Seagate drives From this point on in this product manual the reference to Cheetah 15K 5 SCSI models is referred to as the drive unless references to individual models are necessary 2 Cheetah 15K 5 SCSI Product Manual Rev J 3 0 Applicable standards and reference documentation The drive has been developed as a system peripheral to the highest standards of des
16. SCSI interface commands supported 46 SCSI interface connector 56 SCSI interface data 11 SCSI Interface Product Manual 3 5 6 SCSI systems error 37 SCSI systems error management 37 Seagate support service 39 sector sizes 11 seek error 14 defined 15 Self Monitoring Analysis and Reporting Technology See S M A R T SE LVD alternative 69 shielding 3 shipping 21 shipping container 29 shock 30 and vibration 30 shock mount 44 signal ground 44 single unit shipping pack 9 single ended SE drivers and receivers 7 spindle startup 42 standard day 29 standards 3 start motor command 23 start unitcommand 42 start stop time 12 status 37 stop spindle 12 stop time 12 straight in connector 61 supply voltage 23 support services 1 synchronous data transfer 56 synchronous data transfer operation 73 synchronous data transfer period 56 synchronous transfer period 73 system chassis 44 T technical support services 1 temperature 18 29 43 non operating 29 regulation 3 See also cooling temperature sensor 18 termination 24 terminator enable jumper TE 61 terminator power 71 terminator requirements 39 71 thermal monitor 18 Cheetah 15K 5 SCSI Product Manual Rev J TP1 position 42 tracks inch 10 tracks surface total 10 transfer period 56 transmitter receiver circuits 69 Tunneling Magnetoresistive heads 6 U Ultra160 51 Ultra160 mode 46 Ultra160 SCSI interface 6 Ultra320 SCSI controller 7 unformatted 8 Unreco
17. Vital Product Data page the initiator wants the drive to send back 50 Cheetah 15K 5 SCSI Product Manual Rev J 10 3 2 Mode Sense data The Mode Sense command provides a means for the drive to report its operating parameters to the initiator The drive maintains four sets of Mode parameters Default values Saved values Current values and Change able values Default values are hard coded in the drive firmware that is stored in flash EPROM nonvolatile memory on the drive PCBA Default values can be changed only by downloading a complete set of new firmware into the flash EPROM 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 changeable Saved values are stored on the disc media using a Mode Select command Only parameter values that are allowed to be changed can be changed by this method See Changeable values defined below Parameters in the saved values list that are not changeable by the Mode Select command get their values from the default values storage Current values are volatile values currently being used by the drive to control its operation A Mode Select command can be used to change these values only those that are changeable Originally they are installed from saved or default values after a power on reset hard reset or Bus Device Reset message Changeable values form a bit mask stored in nonvo
18. 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 6 2 6 2 Implementation This section provides all of the information necessary to implement the DST function on this drive 6 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 Seagate as a failed drive A Drive Not Ready condition is reported by the drive under the following conditions Motor will not spin Motor will not lock to speed Servo will not lock on track Drive cannot read configuration tables from the disc In these conditions the drive responds to a Test Unit Ready command with an 02 04 00 or 02 04 03 code 6 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 Refer to the SCS Commands Reference Manual part number 10029
19. data transfer protocol Firmware downloadable via SCSI interface Selectable even byte sector sizes from 512 to 528 bytes sector Programmable sector reallocation scheme Flawed sector reallocation at format time Programmable auto write and read reallocation Reallocation of defects on command post format ECC burst correction length of up to 400 Sealed head and disc assembly No preventative maintenance or adjustment required Dedicated head landing zone Embedded servo design Self diagnostics performed when power is applied to the drive Zoned bit recording ZBR Vertical horizontal or top down mounting Dynamic spindle brake 16 384 kbytes data buffer Hot plug compatibility Section 10 6 4 2 lists proper host connector needed for LC model drives Drive Self Test DST Supports SCSI bus fairness 4 2 Media characteristics 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 Cheetah 15K 5 SCSI Product Manual Rev J 7 4 3 Performance Supports industry standard Ultra320 SCSI interface Programmable multi segmentable cache buffer see Section 5 5 15k RPM spindle Average latency 2 0 msec Command queuing of up to 64 commands Background processing of queue Supports start and stop commands spindle stops spinning 4 4 Reliability
20. inadvertent writing during power up and down Daisy chain operation requires that power be supplied to the SCSI bus terminator to ensure proper termination of the peripheral I O cables To automatically delay motor start based on the target ID SCSI ID enable the Delay Motor Start option and disable the Enable Motor Start option on the J6 connector on LW mod els or on the backplane for LC models See Section 9 1 for pin selection information To delay the motor until the drive receives a Start Unit command enable the Enable Remote Motor Start option on the J6 connector on LW models or on the backplane for LC models 7 2 3 Current profile Figures 1 and 2 show 5V and 12V sample current profiles for the ST3300655LC model All times and currents are typical See Table 3 for maximum current requirements 24 Cheetah 15K 5 SCSI Product Manual Rev J Amps 0 4 8 12 16 20 24 28 32 Seconds Figure 1 Typical ST3300655LW drive 12V LVD current profile Seconds Figure 2 Typical ST3300655LW drive 5 V LVD current profile Cheetah 15K 5 SCSI Product Manual Rev J 7 3 Power dissipation ST3300655LW ST3300655LC For drives using low voltage differential interface circuits typical power dissipation under idle conditions is 13 1 watts 44 70 BTUs per hour To obtain operating power for typical random read operations refer to the following I O rate curve see Figure 3 Locate the typical I O rate for a drive in your system o
21. is saved to the disc 6 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 Short text 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 Seagate for service 18 Cheetah 15K 5 SCSI Product Manual Rev J 6 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
22. major resonant frequency 10 500 Hz 0 75 G X Y or Z axis zero to peak 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 Operating abnormal translational random flat profile 10 500 Hz 1 2 gRMS c Non operating 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 0 040 inches 1 02 mm displacement zero to peak 22 500 Hz 2 00 G zero to peak Vibration may be applied in the X Y or Z axis Non operating translational random flat profile 10 500 Hz 1 2 gRMS 7 4 5 Air cleanliness The drive is designed to operate in a typical office environment with minimal environmental control 7 4 6 Corrosive environment Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to light industrial 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
23. occur only if your host adapter supports these data transfer rates and is compatible with the required hardware requirements of the I O circuit type This drive also operates at SCSI 1 and SCSI 2 data transfer rates for backward compatibility with non Ultra Ultra2 Ultra160 Ultra320 SCSI host adapters Table 1 lists the features that differentiate the Cheetah 15K 5 SCSI models Table 1 Drive model number vs differentiating features Number of Number of I O Model number active heads I O circuit type 1 connector pins ST3300655LW 8 Single ended SE and low voltage 68 ST3146855LW 4 differential LVD ST373455LW 2 ST3300655LC 8 Single ended SE and low voltage 80 ST3146855LC 4 differential LVD ST373455LC 2 1 See Section 10 6 for details and definitions The drive records and recovers data on approximately 70 mm non removable discs The drive supports the Small Computer System Interface SCSI as described in the ANSI SCSI interface specifications to the extent described in this manual volume 1 which defines the product performance char acteristics of the Cheetah 15K 5 SCSI family of drives the Parallel SCSI Interface Manual part number 100293069 and the SCSI Commands Reference Manual part number 100293068 which describe the gen eral interface characteristics of this and other families of Seagate SCSI drives The drive s interface supports multiple initiators disconnect reconnect self configuring host softwa
24. remove the manufacturer s installed labels from the drive and do not cover with additional labels as the manufacturer labels contain information required when servicing the product Formatting Drives are shipped from the factory low level formatted with 512 byte sectors 9 1 Drive ID option select header Figure 10 shows the drive ID select jumper connector Figure 11 shows the option select jumper connector for all models Figure 11 shows the drive s J6 jumper connector The notes following the figures describe the func tions of the various jumper positions on the connectors Suggested part number for the jumpers used on J6 is Molex 52747 0211 Seagate part number 77679052 A bag with the two jumper plug types is shipped with the standard OEM drives Cheetah 15K 5 SCSI Product Manual Rev J 39 Drive HDA rear view PCB facing downward J5 1 2 Pin 1 5V Ground Pin 1 ee ee 4 ger NICE o LONTANA j abr eo ie i O 0 0 O o p 8 J1 DC Power 68 Pin SCSIID 0 default SCSI I O Connector A PCB J1 SCSIID 1 m mn SCSIID 2 S ES ais SCSIID 3 J ame SCSIID 4 ESR ee SCSIID 5 zx SCSIID 6
25. 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 k x F lt 15lb 67N where k represents the mounting surface stiffness units of Ib in or N mm and x represents the out of plane mounting surface distortion units of 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 deflection of the fourth mounting point when a known force F is applied to the fourth point Note Before mounting the drive in any kind of 3 5 inch to 5 25 inch adapter frame verify with Seagate Technology that the drive can meet the shock and vibration specifications while mounted in such an adapter frame Adapter frames that are available may not have a mechanical structure capable of mounting the drive so that it can meet the shock and vibration specifications listed in this manual 9 5 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 ho
26. 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 SCSI 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 disc 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 prefetch feature is enabled refer to section 5 5 2 for operation from this point 12 Cheetah 15K 5 SCSI Product Manual Rev J 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
27. 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 36 Cheetah 15K 5 SCSI Product Manual Rev J 8 3 SCSI systems errors Information on the reporting of operational errors or faults across the interface is given in the SCSI Interface Product Manual Message Protocol System is described in the SCSI Interface Product Manual Several of the messages are used in the SCSI systems error management system The Request Sense command 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 the SCS Commands Reference Manual Status reporting plays a role in the SCSI systems error management and its use in that respect is described in sec tions where the various commands 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 re
28. user intervention Recoverable Data errors will use correction although ECC on the fly is not considered for purposes of recov ered error specifications 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 6 1 2 Unrecoverable Error Unrecoverable Data Errors Sense Key 03h are specified at less than 1 sector in error per 1018 bits trans ferred Unrecoverable Data Errors resulting from the same cause are treated as 1 error for that block 14 Cheetah 15K 5 SCSI Product Manual Rev J 6 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 initial 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 6 2 Reliability and service You can enhance the reliability of Cheetah 15K 5 SCSI disc drives by ensuring that the drive receives ade quate cooling Section 7 0 provides temperature measurements and other information that may be used to enhance the service life of the drive Section 9 3 provides recommende
29. 0 SCSI ID 3 7 9 12 Notes See page following Table 20 66 Cheetah 15K 5 SCSI Product Manual Rev J Table 20 LC 80 pin single ended LVD I O connector pin assignmenis 11 Note A minus sign preceding a signal name indicates that signal is active low Signal Connector contact Signal Contact name 1 number 3 number 3 name 1 12 V CHARGE 1 41 12 V GND 12V 2 42 12 V GND 12V 3 43 12 V GND 12V 4 44 MATED 1 12 NC 10 5 45 NC 10 NC 10 6 46 DIFFSNS 8 DB11 7 47 DB11 DB10 8 48 DB10 DB9 9 49 DB9 DB8 10 50 DB8 1 0 11 51 1 0 REQ 12 52 REQ C D 13 53 C D SEL 14 54 SEL MSG 15 55 MSG RST 16 56 RST ACK 17 57 ACK BSY 18 58 BSY ATN 19 59 ATN DBP 20 60 DBPO DB7 21 61 DB7 DB6 22 62 DB6 DB5 23 63 DB5 DB4 24 64 DB4 DB3 25 65 DB3 DB2 26 66 DB2 DB1 27 67 DB1 DBO 28 68 DBO DBP1 29 69 DP1 DB15 30 70 DB15 DB14 31 71 DB14 DB13 32 72 DB13 DB12 33 73 DB12 5 V 34 74 MATED 2 5 V 35 75 5 V GND 5 V CHARGE 36 76 5 V GND NC 10 37 77 ACTIVE LED OUT 4 9 RMT_START 5 9 12 38 78 DLYD_START 6 9 12 SCSI ID 0 7 9 12 39 79 SCSI ID 1 7 9 12 SCSI ID 2 7 9 12 40 80 SCSI ID 3 7 9 12 Notes See page following this table Chee
30. 008 a MYM 0059 of Datum Y Y Front View Pin 1 62 15 0 15 2 447 0 006 0 15 MYM 0059 Insert mating i I O connector Housing x 2 Top View 1 27 Contact 05 E X 0 50 T 020 m di of Datum Y Grounding Pins y aes Pin 40 Pee O O eet taut T JUOD 000000000 000000000000 0000000000000 C Back View Pin 41 Pin 80 Figure 17 Nonshielded 80 pin SCSI SCA 2 connector used on LC drives Cheetah 15K 5 SCSI Product Manual Rev J 63 Table 17 Note A minus sign preceding a signal name indicates that signal is active low LW 68 conductor single ended SE P cable signal pin assignments 11 Connector Connector Signal contact Cable conductor contact Signal name 1 number 3 number 2 number 3 name 1 GND 1 1 2 35 DB12 GND 2 3 4 36 DB13 GND 3 5 6 37 DB14 GND 4 7 8 38 DB15 GND 5 9 10 39 DBP1 GND 6 11 12 40 DBO GND 7 13 14 41 DB1 GND 8 15 16 42 DB2 GND 9 17 18 43 DB3 GND 10 19 20 44 DB4 GND 11 21 22 45 DB5 GND 12 23 24 46 DB6 GND 13 25 26 47 DB7 GND 14 27 28 48 DBP GND 15 29 30 49 GND GND 16 31 32 50 GND TermPwr 17 33 34 51 TermPwr TermPwr 18 35 36 52 TermPwr Reserved 19 37 38 53 Rese
31. 1 22 64 08 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 SAV 87 0a 00 Ob ff 00 00 00 00 00 ff ff DEF 87 0a 00 0b ff 00 00 00 00 00 ff ff CHG 87 Oa Of ff 00 00 00 00 00 00 ff ff SAV 88 12 14 00 ff ff 00 00 ff ff ff ff 80 20 00 00 00 00 00 00 DEF 88 12 14 00 ff ff 00 00 ff ff ff ff 80 20 00 00 00 00 00 00 CHG 88 12 a5 00 00 00 ff ff ff ff 00 00 20 00 00 00 00 00 00 00 SAV 8a 0a 02 00 00 00 00 00 00 00 Of Oc DEF 8a 0a 02 00 00 00 00 00 00 00 Of Oc CHG 8a Oa 03 0 00 00 00 00 00 00 00 00 SAV 19 06 01 00 ff ff 00 00 DEF 19 06 01 00 ff ff 00 00 CHG 19 06 00 00 ff ff 00 00 SAV 9a Oa 00 02 00 00 00 Oa 00 00 00 04 DEF 9a 0a 00 02 00 00 00 05 00 00 00 04 CHG 9a 0a 00 03 ff ff ff ff 00 00 00 00 SAV 9c 0a 10 00 00 00 00 00 00 00 00 01 DEF 9c 0a 10 00 00 00 00 00 00 00 00 01 CHG 9e 0a 9d 0f ff FE ff ff ff ff ff ff SAV 80 06 00 00 Of 00 00 00 DEF 80 06 00 00 Of 00 00 00 CHG 80 06 f7 40 Of 00 00 00 READ CAPACITY DATA 22 ec b2 5b 00 00 02 00 52 Cheetah 15K 5 SCSI Product Manual Rev J Table 11 ST3146855 Mode sense data MODE S ab 00 MODE S SAV D EF CHG SAV D EF CHG SAV D EF CHG SAV D EF CHG SAV D EF CHG SAV D EF CHG SAV D EF CHG SAV D EF CHG SAV D EF CHG SAV D EF CHG SAV
32. 11 5 3 Start Stop UM ria ert te Ss Wee eda a aie aene uie joke sl ee 12 5 4 Prefetch multi segmented cache control 000 cece eee eee ee 12 5 5 Cache operation iia de hoe AAA AA A AE 12 5 5 1 Caching write data oooooccoccoccnocr hn 13 5 5 2 Prefetch operation ie 0 ee eee ee 13 Reliability specifications 0 0c eee 14 6 1 Error Tatess locos ik ete paraphrase A go eee acta oe 14 6 1 1 Recoverable Errors 2 2 0 0 cece tet eee 14 6 1 2 Unrecoverable Error 2 0 0 0 ccc eee 14 6 1 3 SOMOS S ciu Vs i PANES e ite uda pt Ed as 15 6 2 Reliability and service liliis IIR I I eh 15 6 2 1 Annualized Failure Rate AFR and Mean Time Between Failures MTBF 15 6 2 2 Preventive maintenance llle 15 6 2 3 Hot plugging Cheetah 15K 5 SCSI disc drives 1 0 2 0 0000 cece eee 16 6 2 4 SMAR a fait e ce enim DAP ee ie Be 16 6 2 5 Thermal MONO eee ee 18 6 2 6 Drive Self Test DST 0 0000 cece tte 18 6 2 7 Product warranty ii SR SN Dag ke Ga dain RA E 20 Physical electrical specifications 2 000 cee 22 7 1 AC power requireMentS oooocccocooo hh 22 7 2 DC power requirements 00 cece teens 22 7 2 1 Conducted noise iMMUNItY ooccoccooco ne ee enken k ek nnkne 24 7 2 2 Power sequencing erei akta eee Rs 24 7 2 3 Gurrent profile i vara a Ie e pe age EDU Y Bk adele ed 24 7 3 Power dissipaliori 1 2 ia id x GM dad bid sed n de RR Re DU 26 Cheetah 15K 5 SCSI Product
33. 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 5 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 checked 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 retur
34. 15K 5 SCSI Product Manual Rev J 57 80 pin SCSI I O Connector Figure 14 LC model drive physical interface 80 pin J1 SCSI I O connector 10 6 2 SCSI interface physical description Cheetah 15K 5 SCSI drives support the physical interface requirements of the Ultra320 SCSI Parallel Inter face 4 SPI 4 and operate compatibly at the interface with devices that support earlier SCSI 2 and SCSI 3 standards It should be noted that this is only true if the systems engineering has been correctly done and if earlier SCSI 2 and SCSI 3 devices respond in an acceptable manner per applicable SCSI Standards to reject newer Ultra320 protocol extensions that they don t support The drives documented in this manual support single ended and low voltage differential physical interconnects hereafter referred to as SE and LVD respectively as described in the corresponding ANSI SPI document ref erenced in the preceding paragraph These drives implement driver and receiver circuits that can operate either SE or LVD However they cannot switch dynamically between SE and LVD operation The drives typically operate on a bus with other SCSI devices All devices on the bus must operate in the same mode either SE or LVD but not a mixture of these All signals on the bus are common between all devices on the bus This bus must be terminated at both ends with the proper impedance in order to operate correctly Do not terminate intermediate SCSI devices
35. 1h 1 Y Identify 80h FFh Y Ignore wide residue two bytes 23h Y Initiate recovery OFh N Initiator detected error 05h Y Linked command complete OAh Y Linked command complete with flag OBh Y Message parity error 09h Y Message reject 07h Y Modify data pointer 1 N No operation 08h Y Parallel Protocol Request 1 2 Y Queue tag messages two bytes ACA 24h N Head of queue tag 21h Y Cheetah 15K 5 SCSI Product Manual Rev J 45 Table 7 SCSI messages supported by Cheetah 15K 5 SCSI family drives Supported Y yes Message name Message code N no Ordered queue tag 22h Y Simple queue tag 20h Y Quick Arbitration and Selection QAS 55h Y Release recovery 10h N Restore pointers 03h Y Save data pointer 02h Y Synchronous data transfer req 1 Y Target transfer disable 13h N Terminate I O process 11h N Wide data transfer request 1 Y Notes 1 Extended messages see the SCS Interface Product Manual 2 Supports all options except qas req and iu req 10 3 SCSI interface commands supported Table 8 following lists the SCSI interface commands that are supported by the drive OEM standard drives are shipped set to operate in Ultra320 mode Table 8 Commands supported by Cheetah 15K 5 SCSI family drive Command name Command code Supported by SCSI 2 3 Change Definition 40h Compare 39h Copy 18h Copy and Verify 3Ah Format Unit 1
36. 21BC97F8 275 154 368 106685C0 137 577 184 83342E0 528 557 874 778 21407E5A 272 662 935 10408197h 136 331 467 82040CBh 2 Seagate drives also may be used at the maximum available capacity at a given sector size but the excess capacity above the guaranteed level will vary between 10K and 15K families and from generation to gener ation depending on how each sector size actually formats out for zone frequencies and splits over servo bursts This added capacity potential may range from 0 1 to 1 3 percent above the guaranteed capacities listed above Using the drives in this manner gives the absolute maximum capacity potential but the user must determine if the extra capacity potential is useful or whether their assurance of backward and for ward compatibility takes precedence Cheetah 15K 5 SCSI Product Manual Rev J 4 5 1 Programmable drive capacity Using the Mode Select command the drive can change its capacity to something less than maximum See the Mode Select Parameter List table in the SCSI Interface Manual Refer to the Parameter list block descriptor number of blocks field A value of zero in the number of blocks field indicates that the drive shall not change the capacity it is currently formatted to have A number in the number of blocks field that is less than the maximum number of LBAs changes the total drive capacity to the value in the block descriptor number of blocks field A value greater than the maximum number of LBA
37. 3068 for additional information about invoking DST 6 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 Cheetah 15K 5 SCSI Product Manual Rev J 19 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 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 6 2 6 2 4 Log page entries When the drive begins DST it c
38. 5 to 95 non condensing relative humidity with a maximum gradient of 10 per hour Non operating 5 to 95 non condensing relative humidity with a maximum gradient of 20 per hour 7 4 3 Effective altitude sea level a Operating 1 000 to 10 000 feet 305 to 3 048 meters Cheetah 15K 5 SCSI Product Manual Rev J 29 b Non operating 1 000 to 40 000 feet 305 to 12 210 meters 7 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 7 and in accordance with the restrictions of Section 9 4 Orientation of the side nearest the LED may be up or down 7 4 4 1 Shock a 30 Operating normal The drive as installed for normal operation shall operate error free while subjected to intermittent shock not exceeding 15 Gs at a maximum duration of 11 msec half sinewave The drive as installed for normal operation shall operate error free while subjected to intermittent shock not exceeding 60 Gs at
39. 53 54 61 SEL C D 28 55 56 62 C D REQ 29 57 58 63 REQ 1 0 30 59 60 64 1 0 DB8 31 61 62 65 DB8 DB9 32 63 64 66 DB9 DB10 33 65 66 67 DB10 DB11 34 67 68 68 DB11 Notes See page following Table 20 Cheetah 15K 5 SCSI Product Manual Rev J 65 Table 19 LC 80 pin single ended SE I O connector pin assignments 11 Note A minus sign preceding a signal name indicates that signal is active low Connector Signal contact Signal Contact name 1 number 3 number 3 name 1 12 V CHARGE 1 41 12 V GND 12V 2 42 12 V GND 12V 3 43 12 V GND 12V 4 44 MATED 1 12 NC 10 5 45 NC 10 NC 10 6 46 DIFFSNS 8 DB11 7 47 GND DB10 8 48 GND DB9 9 49 GND DB8 10 50 GND 1 0 11 51 GND REQ 12 52 GND C D 13 53 GND SEL 14 54 GND MSG 15 55 GND RST 16 56 GND ACK 17 57 GND BSY 18 58 GND ATN 19 59 GND DBP 20 60 GND DB7 21 61 GND DB6 22 62 GND DB5 23 63 GND DB4 24 64 GND DB3 25 65 GND DB2 26 66 GND DB1 27 67 GND DBO 28 68 GND DP1 29 69 GND DB15 30 70 GND DB14 31 71 GND DB13 32 72 GND DB12 33 73 GND 45V 34 74 MATED 2 45V 35 75 5 V GND 45V 36 76 5 V GND NC 10 37 77 ACTIVE LED OUT 4 9 RMT START 5 9 12 38 78 DLYD START 6 9 12 SCSI ID 0 7 9 12 39 79 SCSI ID 1 7 9 12 SCSI ID 2 7 9 12 40 8
40. 6 are negotiated to O asynchronous transfer 10 6 Physical interface This section describes the connectors cables signals terminators and bus timing of the DC and SCSI I O interface See Section 10 8 and Section 10 9 for additional terminator information Figures 13 and 14 show the locations of the DC power connector SCSI interface connector drive select head ers and option select headers Details of the physical electrical and logical characteristics are given in sections following while the SCSI operational aspects of Seagate drive interfaces are given in the Parallel SCSI Interface Manual 56 Cheetah 15K 5 SCSI Product Manual Rev J 10 6 1 DC cable and connector LW model drives receive DC power through a 4 pin connector see Figure 15 for pin assignment mounted at the rear of the main PCBA Recommended part numbers of the mating connector are listed below but equiva lent parts may be used Type of cable Connector Contacts 20 14 AWG 14 AWG MP 1 480424 0 AMP 60619 4 Loose Piece AMP 6111 7 4 Strip LC model drives receive power through the 80 pin I O connector See Tables 19 and 20 J1 J5 Pin 1 Pin 1A J1 DC Power o E o l e OO 9 4P 3P 2P 1P PCB o Qe J1 DC Power Pin 1P J5 Pin 1A J1 Pin 1 68 Pin SCSI I O Connector Figure 13 LW model drive physical interface 68 pin J1 SCSI I O connector Cheetah
41. In some cases the SCSI devices at each end have onboard termina tion circuits that can be enabled by installation of a jumper plug TE on the device These termination circuits receive power from either a source internal to the device or from a line in the interface cable specifically pow ered for that purpose LC and LW model drives do not have onboard termination circuits Some type of external termination circuits must be provided for these drives by the end user or designers of the equipment into which the drives will be integrated See the ANSI T10 Standard referenced above for the maximum number of devices that can successfully operate at various interface transfer rates on SE and LVD buses LC model drives plug into PCBA or bulkhead connectors in the host They may be connected in a daisy chain by the host backplane wiring or PCBA circuit runs that have adequate DC current carrying capacity to support the number of drives plugged into the PCBA or bulkhead connectors A single 80 pin I O connector cable can not support the DC current needs of several drives so no cables beyond the bulkhead connectors should be used A single drive connected via a cable to a host 80 pin I O connector is not recommended 58 Cheetah 15K 5 SCSI Product Manual Rev J Table 16 shows the interface transfer rates supported by the various drive models defined in this manual Table 16 Interface transfer rates supported Maximum
42. LC DC power requirements Notes LVD mode Voltage 5V 12V Regulation 5 15 15 2 Average idle current DC X 1 6 0 71 0 57 Maximum starting current peak DC DC 30 3 0 74 1 94 peak AC AC 30 3 1 04 3 32 Delayed motor start max DC 30 1 4 0 56 0 03 Peak operating current DC X 1 0 67 0 88 Maximum DC 3c 1 0 68 0 94 Maximum peak DC 30 1 42 2 50 Table 5 ST373455LC DC power requirements Notes LVD mode Voltage 5V 12V Regulation 5 15 15 2 Average idle current DC X 1 6 0 69 0 42 Maximum starting current peak DC DC 30 3 0 72 1 94 peak AC AC 30 3 1 00 3 32 Delayed motor start max DC 30 1 4 0 56 0 03 Peak operating current B DC X 1 0 67 0 78 Maximum DC 3c 1 0 68 0 82 Maximum peak DC 3c 1 40 2 38 1 2 3 4 5 6 Measured with average reading DC ammeter or equivalent sampling scope Instantaneous current peaks will exceed these values Power supply at nominal voltage Number of drives tested 6 35 Degrees C ambient For 12 V a 10 tolerance is permissible during initial start of spindle and must return to 5 before 15 000 rpm is reached 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 12 V current profile in Figure 1 This condition occurs when the Motor Start Option i
43. This usually makes the drive inoperable Cheetah 15K 5 SCSI Product Manual Rev J 49 Table 9 lists the Standard Inquiry command data that the drive should return to the initiator per the format given in the SCS Interface Product Manual part number 100293069 Inquiry command section Table 9 Cheetah 15K 5 SCSI family drive Standard Inquiry data Bytes Data HEX 0 15 00 00 03 129 8B 00 01 3E 53 45 41 47 41 54 45 20 VENDOR ID 16 31 53 54 33 33 30 30 36 35 35 4C 571 20 20 20 20 20 PRODUCTID 32 47 R R R R S S S S S S S S 00 00 00 00 48 63 00 00 00 00 00 oo 00 00 00 00 00 00 00 00 00 00 64 79 00 00 00 00 oo 00 00 00 00 00 00 00 00 00 00 00 80 95 00 00 00 00 00 oo 00 00 00 00 00 00 00 00 00 00 96 111 00 43 6F 70 79 72 69 67 68 74 20 28 63 29 20 y COPYRIGHT 112 127 y yl ly 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 03 means SCSI 3 Ultra160 implemented Note Seagate has chosen to set this bit to 03 SCSI 3 Ultra160 implemented rather than 04 SCSI 4 Ultra320 implemented due to compatibility issues w
44. a Ehe kEi eie EHESRPEERREAWIDNEGGRG he UU NER ei Weed 44 9 5 GOUGING eC EET 44 Interface requireMentS oooooocccon RR hh hh ht 45 10 1 General description lississeesllseeeel rn 45 10 2 SCSI interface messages supported 0 cece eee 45 10 3 SCSI interface commands supported 0000s 46 10 3 1 Inquiry Vital Product data 1 2 ee 50 10 3 2 Mode Sense data 0 0 tees 51 10 4 SCSI bus conditions and miscellaneous features supported lilius 55 10 5 Synchronous data transfer uasa aeaaaee les 56 10 5 4 Synchronous data transfer periods supported 000 cena 56 10 5 2 REQ ACK offset eared da rn 56 10 6 Physicalinterface Nee ea nee ee 56 10 6 1 DC cable and connector 000 cee 57 10 6 2 SCSI interface physical description 0 000 c eee 58 10 6 3 SCSI interface cable requirements 0000 cece eee eee 59 10 6 4 Mating connectors 0 cette 59 10 7 Electrical description sreo orero cen ee eE eee eae 68 10 7 1 Multimode SE and LVD alternatives 0 000000 cee eee eee 68 10 8 Terminator requirements 0 n 71 10 9 Terminator power l l m eae 71 10 10 Disc drive SCSI timing liliis 72 10 11 Drive activity LED serani eenaa RR 3 ae 74 Cheetah 15K 5 SCSI Product Manual Rev J Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figur
45. a maximum duration of 2 msec half sinewave Shock may be applied in the X Y or Z axis 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 maximum duration of 11 msec half sinewave Shock occurring at abnormal levels may promote degraded operational performance during the abnormal shock period Speci fied 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 two times per second 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 75 Gs at a maximum duration of 11 msec half sinewave shall not exhibit device damage or performance degradation Shock may be applied in the X Y or Z axis The drive subjected to nonrepetitive shock not exceeding 250 Gs at a maximum duration of 2 msec half sinewave does not exhibit device damage or performance degradation Shock may be applied in the X Y or Z axis The drive subjected to nonrepetitive shock not exceeding 120 Gs at a maximum duration of 0 5 msec half sinewave does not exhibit device damage or performance degradation Shock may be applied in the X Y or Z axis Packaged Disc drives shippe
46. able with this connector This type connector can only be used on cable ends 1 Amp Model 88 5870 294 5 W O Strain Relief 25 mil conductor centers 30 AWG wire Use either on cable ends or in cable middle section for daisy chain installations 1 Amp Model 1 480420 0 Power connector 4 circuit housing Berg 69307 012 12 position 2 x 6 2 mm receptacle housing 1 See Figure 15 The drive device connector is a nonshielded 68 conductor connector consisting of two rows of 34 female pins with adjacent pins 50 mils apart The connector is keyed by means of its shape see Figure 16 10 6 4 2 Mating connectors for LC model drives The nonshielded connector shall be an 80 conductor connector consisting of two rows of 40 contacts with adja cent contacts 50 1 27 mm mils apart see Figure 17 I O connection using a cable is not recommended The length and size of the host equipment DC power carrying conductors from the DC power source to the host equipment 80 pin disc drive interface connector s should be strictly designed according to proper power trans mission design concepts No possibility for the equipment user to attach an 80 pin cable connector should be allowed since the length of the DC power carrying conductors could not be controlled and therefore could become too long for safe power transmission to the drive Multiconnector 80 conductor cables should espe cially not be allowed since the power carrying conductors on the 80 conductor
47. altitude and atmospheric pressure 29 ambient 29 Annualized Failure Rate 14 Annualized Failure Rates AFR 15 ANSI SCSI documents 5 arbitration priority 61 asynchronous interface transfer rate 73 audible noise 3 Australia New Zealand Standard 4 automatic retry 14 automatic shipping lock 7 average idle current 22 23 average latency 8 average rotational latency 10 11 B Background Media Scan 37 background processing 8 backward compatibility 6 bits inch 10 BMS 37 buffer 12 space 12 bulkhead connector 58 bus device reset message 51 Cheetah 15K 5 SCSI Product Manual Rev J bytes per sector 49 C cable 57 cache 12 cache buffer 8 cache mode 12 cache operation 12 cache segments 13 caching write data 13 Canadian Department of Communications 3 capacities 9 capacity drive programmable 9 CE Marking 4 changeable bit 51 changeable value 51 check condition 51 circuits 69 class B limit 3 command 12 46 command descriptor block CDB 11 command queuing 8 condensation 29 conducted noise immunity 23 24 connect disconnect 11 connector 57 connector contact 68 continuous vibration 32 controller 12 controller overhead 11 cooling 43 C Tick Marking 4 current 24 current profile 24 25 current requirements 22 current value 51 D daisy chain 24 58 61 DAR 38 data block size modifing the 8 data correction 14 data transfer period 56 data transfer protocol 7 data transfer rate 11 DC cable and conne
48. 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 operation SCSI defect and error management involves drive internal defect error management and SCSI 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 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
49. arting current 22 23 ME jumper 42 mean time between failure MTBF 15 media 7 51 Media Pre Scan 37 message protocol 56 message protocol system 37 messages SCSI interface 45 miscellaneous features 55 mode page 01 51 mode page 08h 12 mode parameter 51 mode select command 12 51 mode sense command 51 mode sense data 51 mode sense value 51 model number table 6 motor start command 12 motor start delay option 68 motor start option 12 23 68 mounting configuration 33 mounting configuration dimensions 33 34 mounting constraints 14 44 mounting point 44 mounting surface 44 mounting surface distortion 44 mounting surface stiffness 44 Cheetah 15K 5 SCSI Product Manual Rev J MTBF 14 15 multiconnector 80 conductor 60 multimode drivers and receivers 7 multi segmented cache control 12 N noise 24 audible 3 non operating 29 30 32 temperature 29 non operating vibration 32 nonshielded 68 conductor connector 60 O office environment 32 operating 29 30 32 operating option 39 operating parameter 51 option jumper 39 option jumper location 39 option select header 56 option select jumper 39 options 9 orientation 30 43 out of plane deflection 44 out of plane distortion 44 Output characteristics 68 P package size 30 package test specification 5 packaged 30 parity 42 parity checking 42 parity error 42 PCB 41 PCBA 39 44 51 PCBA circuit run 58 PD jumper 42 peak bits inch 10 peak starting current 23 per
50. be carefully considered Proper impedance matching is especially important in order to maintain adequate margin at FAST 20 FAST 40 FAST 80 and FAST 160 SCSI transfer rates Note For LVD operation twisted pair cables are recommended For LVD Fast 40 operation twisted pair cables are strongly recommended For Fast 80 and Fast 160 operation twisted pair cables are required LC Models The 80 pin connector option provided on LC models is intended for use on drives that plug directly into back plane connector in the host equipment In such installations all backplane wiring segments are subject to the electromagnetic concepts presented in Standard T10 1365D Rev 3 Section 6 For LC model drives installa tions with connectors on cables are not recommended 10 6 4 Mating connectors Part numbers for the different type connectors that mate with the various Cheetah 15K 5 SCSI I O connectors are given in the sections following Cheetah 15K 5 SCSI Product Manual Rev J 59 10 6 4 1 Mating connectors for LW model drives The nonshielded cable connector shall be a 68 conductor connector consisting of two rows of 34 male contacts with adjacent contacts 0 050 inch 1 27 mm apart Recommended mating flat cable connector part numbers are Amp Model 786096 7 Female 68 pin panel mount Amp Model 786090 7 Female 68 pin cable mount Amp Model 749925 5 50 mil conductor centers 28 or 30 AWG wire Use two 34 conductor 50 mil center flat c
51. ble 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 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 36 F 20 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 Non operating 40 to 158 F 40 to 70 C package ambient with a maximum gradient of 36 F 20 C per hour This specification assumes that the drive is packaged in the shipping container designed by Seagate for use with drive Figure 6 Locations of the HDA temperature check point 7 4 2 Relative humidity The values below assume that no condensation on the drive occurs a Operating
52. ccess time latency time 5 2 2 Format command execution time minutes 1 ST3300655LW ST3146855LW ST373455LW ST3300655LC ST3146855LC ST373455LC Maximum with verify 120 90 60 Maximum no verify 60 45 30 5 2 3 Generalized performance characteristics Sustainable disc transfer rate Minimum 3 73 Mbytes sec Maximum 3 125 Mbytes sec SCSI interface data transfer rate asynchronous Maximum instantaneous one byte wide 5 0 MBytes sec 3 Maximum instantaneous two bytes wide 10 0 MBytes sec 3 Synchronous transfer rate In low voltage differential LVD interface mode 5 0 to 320 MBytes sec Sector Sizes Default 512 byte user data blocks Variable 512 to 528 bytes per sector in even number of bytes per sector If n number of bytes per sector is odd then n 1 will be used 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 00 msec Notes for Section 5 2 1 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 2 Assumes no errors and no sector has been relocated 3 Assumes system ability to support the rates listed and no cable loss Cheetah 15K 5 SCSI Product Manual Rev J 11 5 3 Start stop time After DC power at
53. cond Figure 4 ST3146855LC DC current and power vs IOPS LVD Cheetah 15K 5 SCSI Product Manual Rev J 27 ST373455LW ST373455LC For drives using low voltage differential interface circuits typical power dissipation under idle conditions is 8 49 watts 28 97 BTUs per hour To obtain operating power for typical random read operations refer to the following l O rate curve see Figure 5 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 ST373455LC CURRENT POWER vs THROUGHPUT SCSI LVD Random 8 Block Reads 1800 4 5Volt A H 2 Volt A 1600 a Watts 1400 1200 o o l o 2 o 1000 5 Ld lt 0 800 a 0 600 0 400 0 200 0 000 0 0 50 0 100 0 150 0 200 0 250 0 300 0 350 0 400 0 1 Os per Second Figure 5 ST373455LC DC current and power vs IOPS LVD 28 Cheetah 15K 5 SCSI Product Manual Rev J 7 4 Environmental limits Temperature and humidity values experienced by the drive must be such that condensation does not occur on 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 7 4 1 Temperature a HDA Temp Check Point Operating The maximum allowa
54. covered error sites will be logged or reallocated per ARRE AWRE settings 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 because 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 e
55. ctor 57 DC current 58 DC power 12 14 42 57 DC power carrying conductor 60 DC power connector 56 DC power requirements 22 DC power source 60 dedicated landing zone 6 75 default 41 42 default mode parameter 39 default value 51 defect error management 35 defects 35 Deferred Auto Reallocation 38 delayed motor start option 22 23 68 delayed start 42 differential I O circuit 42 differentiating features 6 dimensions 33 disc rotational speed 10 drive 32 drive activity 68 drive activity LED 74 drive capacity 10 programmable 9 drive default mode parameter 39 drive firmware 51 drive ID 39 drive ID select jumper connector 39 drive ID option select header 39 drive interface connector 60 drive internal defects and errors 35 drive mounting 33 44 constraints 14 drive orientation 43 drive power 39 drive primary defects list 35 drive SCSI timing 72 drive select header 56 drive spindle 42 dynamic spindle brake 7 E ECC 14 ECC correction capability 7 electrical characteristics 56 68 electromagnetic compatibility 3 electromagnetic susceptibility 33 embedded servo 7 EMC compliance 4 EMI requirements 3 environmental control 32 environmental limits 29 environmental requirements 14 EPROM 51 error 14 management 35 error management system 37 errorrate 14 error recovery 35 errors 35 ETF defect list 35 European Union requirements 4 76 EVPD bit 50 execution time 11 extended messages 46 F
56. d Depen dent Reselect Identify MSG to Data media T16 4 5 11 Command Depen dent Data to Status T17 4 5 15 Command Depen dent Status to Command Complete MSG T18 4 5 5 8 15 0 98 us Command Complete MSG to Bus Free T19 4 5 5 8 15 0 51 us Data to Save Data Pointer MSG T20 4 5 14 4 00 us Save Data Pointer MSG to Disconnect MSG T21 4 5 14 0 79 us Command Byte Transfer T22 4 5 4 0 04 us Next Command Byte Access 4 5 4 Next CDB Byte Access Byte 2 of 6 T23 6 2 4 5 4 0 58 us Next CDB Byte Access Byte 3 of 6 T23 6 3 4 5 4 0 12 us Next CDB Byte Access Byte 4 of 6 T23 6 4 4 5 4 0 12 us Next CDB Byte Access Byte 5 of 6 T23 6 5 4 5 4 0 12 us Next CDB Byte Access Byte 6 of 6 T23 6 6 4 5 4 0 12 us Table 24 Disc drive SCSI timing Continued These values are not current Cheetah 15K 5 SCSI values but are listed for information only Waveform Waveform Description symbol 1 table 1 Typical timing Next CDB Byte Access Byte 2 of 10 T23 10 2 4 5 4 0 59 us Next CDB Byte Access Byte 3 of 10 T23 10 3 4 5 4 0 11 us 1 us Next CDB Byte Access Byte 4 of 10 T23 10 4 4 5 4 0 12 us 1 us Next CDB Byte Access Byte 5 of 10 T23 10 5 4 5 4 0 11 us 1 us Next CDB Byte Access Byte 6 of 10 T23 10 6 4 5 4 0 11 us 1 us Next CDB Byte Access Byte 7 of 10 T23 10 7 4 5 4 0 13 us 1 us Next CDB Byte Access Byte 8 of 10 T23 10 8 4 5 4 0 12 us 1 us Next CDB Byte Access Byte 9 of 10 T23 10
57. d air flow information 6 2 1 Annualized Failure Rate AFR and Mean Time Between Failures MTBF These drives shall achieve an AFR of 0 62 MTBF of 1 400 000 hours when operated in an environment that ensures the HDA case temperatures do not exceed the values specified in Section 7 4 1 Operation at case temperatures outside the specifications in Section 7 4 1 may increase the AFR decrease the MTBF AFR and MTBF statistics are population statistics that are not relevant to individual units AFR and MTBF specifications 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 Operating at nominal voltages System provides adequate cooling to ensure the case temperatures specified in Section 7 4 1 are not exceeded 6 2 2 Preventive maintenance No routine scheduled preventive maintenance shall be required Cheetah 15K 5 SCSI Product Manual Rev J 15 6 2 3 Hot plugging Cheetah 15K 5 SCSI disc drives The ANSI SPI 4 document defines the physical requirements for removal and insertion of SCSI devices on the SCSI bus Four cases are addressed The cases are differentiated by the state of the SCSI bus when the removal or insertion occurs Case 1 All bus devices powered off during removal or insertion Case 2 RST signal asserted continuously during removal or insertion Case 3 Current I O processes not allowed during insertion or
58. d 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 specifications 30190 001 under 100 Ibs 45 kg or 30191 001 over 100 lbs 45 Kg Package size Packaged product weight Drop height lt 600 cu in lt 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 gt 1800 cu in gt 19 700 cu cm 0 20 Ib 0 to 9 1 kg 42 in 1067 mm gt 600 cu in gt 9 800 cu cm 20 40 Ib 9 1 to 18 1 kg 36 in 914 mm Cheetah 15K 5 SCSI Product Manual Rev J 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 Figure 7 Recommended mounting Cheetah 15K 5 SCSI Product Manual Rev J 31 7 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 10 500 Hz 0 5 G zero to peak Vibration may be applied in the X Y or Z axis Operating normal translational random flat profile 10 500 Hz 0 4 gRMS b 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
59. d the choice of cable See Tables 22 and 23 for examples of recommended SCSI LVD cable types and lengths It should be noted from the data in Tables 22 and 23 that shielded round twisted pair cables can be used to implement a 12 meter system while Twist n flat cables cannot be used to implement a 12 meter system due to higher levels of attenuation and crosstalk In addition twist n flat cables with shorter sections of twist allow greater crosstalk and their lengths must be reduced as shown in Table 23 Table 22 Shielded round twisted pair cables into a multi drive backplane Single Single Conductor Differential ended ended Time DC Maximum shielded round Cable impedance impedance capacitance delay resistance twisted pair cable length description nominal nominal maximum nominal nominal for U160 U320 30 AWG 430 ohms 90 ohms 17 pF ft 1 36 ns ft 0 113 ohms tt 12 meters minus the SCSI solid trace length of the backplane 28 AWG 12 meters minus the SCSI Stranded 123 ohms 80 ohms 19 pF ft 1 54 ns ft 0 067 ohms ft trace length of the backplane 28 AWG 12 meters minus the SCSI Stranded 132 ohms 85 ohms 20 pF ft 1 50 ns ft 0 065 ohms ft trace length of the backplane Table 23 Twist n flat cables into a multi drive backplane Single Conductor Maximum Twist n flat Differential Single ended ended Time DC cable length impedance impedance capacitance delay resistance Cable d
60. de of S M A R T is controlled by the DEXCPT bit and the PERF bit of the Informational Exceptions Control Mode Page 1Ch The DEXCPT bit is used to enable or disable the S M A R T process Setting the DEXCPT bit will disable all S M A R T functions When enabled S M A R T will collect on line data as the drive performs normal read 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 The process of measuring off line attributes and saving data can be forced by the Rezero Unit command Forc ing S M A R T will reset the timer so that the next scheduled interrupt will be two hours The drive can be interrogated by the host to determine the time remaining before the next scheduled measure ment and data logging process will occur This is accomplished by a log sense command to log page Ox3E The purpose is to allow the customer to control when S M A R T interruptions occur As described above forc ing S M A R T by the Rezero Unit command will reset the timer Performance impact S M A R T attribute data will be saved to the disc for the purpose of recreating the events that caused a predic tive failure The drive will measure and save parameters once every two hours subject to an idle period on the SCSI bus The process of measuring off line attribute data and saving data to the disc is uninterruptable and the maximum delay is summarized below Maxim
61. e 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Cheetah 15K 5 SCSI Product Manual Rev J List of Figures Typical ST3300655LW drive 5 V LVD current profile o oo oooooooo o 25 ST3300655LC DC current and power vs IOPS LVD sslsslslsllselsssseess 26 ST3146855LC DC current and power vs IOPS LVD sslsslslsllselselseen 27 ST373455LC DC current and power vs IOPS LVD 0 0000 e cece eee 28 Locations of the HDA temperature check point llle 29 Recommended mounting seir ro aaan s AAAA K OIRA RA A TA NIE 31 LW mounting configuration dimensionS 0 000 cee II 33 LC mounting configuration dimensions 0 0 cece ete 34 J5 jumper header on LW models only 1 2 iilii eh 40 J6 option select header on LW models only 0 0 ae 41 Air flow suggested oooooccc nee 43 LW model drive physical interface 68 pin J1 SCSI I O connector 57 LC model drive physical interface 80 pin J1 SCSI I O connector 58 SCSI daisy chain interface cabling for LW drives 0 0000 cece eee 61 Nonshielded 68 pin SCSI device connector used on LW drives 00000 e aes 62 Nonshielded 80 pin SCSI SCA 2 connector used on LC drives 63 Typical SE LVD alternative transmitter receiver circuits o ooooooooooooooooo 69 1 0 Seagate Technology support services SEAGATE
62. e is capable of meeting the Class B limits of the FCC Rules and Regula tions of the Canadian Department of Communications 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 con troller 3 1 2 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 Table 3 DC power requirements Cheetah 15K 5 SCSI Product Manual Rev J 3 3 2 Electromagnetic compliance Seagate uses an independent laboratory to confirm compliance to the directives standard s 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 3 5 inch floppy disc drive Keyboard Monitor display
63. e 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 Ultra160 implementation see the SCS Commands Reference Manual Definitions SAV Current saved value DEF Default value Standard drives are shipped configured this way CHG Changeable bits indicates if current and saved values are changeable Note Saved values for OEM drives are normally the same as the default values Cheetah 15K 5 SCSI Product Manual Rev J 51 Table 10 ST3300655 Mode sense data MODE SENSE HEADER DATA ab 00 10 08 22 ec b2 5c 00 00 02 00 MODE ENSE PAGES DATA SAV 81 0a cO Ob ff 00 00 00 05 00 ff ff DEF 81 Oa c0 Ob ff 00 00 00 05 00 ff ff CHG 81 Oa ff ff 00 00 00 00 ff 00 ff ff Nn SAV 82 0e 80 80 00 0a 00 00 00 00 00 00 00 00 00 00 DEF 82 0e 80 80 00 Oa 00 00 00 00 00 00 00 00 00 00 CHG 82 Oe ff ff 00 00 00 00 00 00 ff ff 87 00 00 00 SAV 83 16 68 58 00 00 00 38 00 00 03 da 02 00 00 01 00 e6 00 aa 40 00 00 00 DEF 83 16 68 58 00 00 00 38 00 00 03 da 02 00 00 01 00 e6 00 aa 40 00 00 00 CHG 83 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 SAV 84 16 01 22 64 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3a a7 00 00 DEF 84 16 0
64. 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 32 Cheetah 15K 5 SCSI Product Manual Rev J 7 4 7 Acoustics Sound power during idle mode shall be 3 7 bels typical when measured to ISO 7779 specification Sound power while operating shall be 4 3 bels typical when 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 7 4 8 Electromagnetic susceptibility See Section 3 1 2 7 5 Mechanical specifications The following nominal dimensions are exclusive of the decorative front panel accessory However dimensions of the front panel are sh
65. enerates 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 according 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 2 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 2 Temperature Log page 0Dh Parameter Code Description 0000h Primary Temperature 0001h Reference Temperature When the first temperature trip point is exceeded S M A R T data is collected and a frame
66. er not installed Spindle starts immediately after power up Default setting Drive spindle does not start until Start Unit command received from host Spindle Startup is delayed by SCSI ID times 12 seconds after power is applied i e drive 0 spindle starts immediately when DC power connected drive 1 starts after 12 second delay drive 2 starts after 24 second delay etc Drive spindle starts when Start Unit command received from host Delayed start feature is overridden and does not apply when ME jumper is installed Entire drive is write protected Drive is not write protected Default is WP jumper not installed Parity checking and parity error reporting by the drive is disabled Drive checks for parity and reports result of parity checking to host Default is PD jumper not installed Reserved jumper position Default is no RES jumper installed The drive does not supply terminator power to external terminators or to the SCSI bus I O cable Drive supplies power to SCSI bus I O cable When drives have differential I O circuits a jumper on the TP position may be needed to power external terminators see system docu mentation These drives do not have terminator circuits on the drive Note J6 does not exist on the LC model and is supported on the LW model only 42 Cheetah 15K 5 SCSI Product Manual Rev J 9 2 Drive orientation The balanced rotary arm actuator design of the drive allows it to be mounted in any orientation
67. error counter page 02h Mode Select same pages as Mode Sense 1Ah 15h 2 Mode Select 10 same pages as Mode Sense 1 Ah 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 OCh Port Control Page 19h lt lt Z lt lt lt lt lt lt lt lt lt lt lt lt Z zz lt 2 z 2 2 2 lt lt z Power Condition page 1Ah Cheetah 15K 5 SCSI Product Manual Rev J 47 Table 8 Commands supported by Cheetah 15K 5 SCSI family drive Continued Command name Command code Supported by SCSI 2 3 Rigid Disc Drive Geometry page 04h Y Unit Attention page 00h Y Verify Error Recovery page 07h Y Xor Control page 10h N 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
68. escription nominal nominal maximum nominal nominal U320 U160 TPE 22 25 twist 1 75 flat 24 flat 3 05meters 6 1 meters to flat 30 AWG 131 ohms 93 ohms 15 3 pF ft 1 45 ns ft 0 105 ohms ft 10 0 ft 20 0 ft solid tinned copper TPE 8 1 twist 1 75 flat 9 85 flat 2 45meters 4 9 meters to flat 30 AWG 131 ohms 93 ohms 15 3 pF ft 1 45 ns ft 0 105 ohms ft 8 33 ft 16 66 ft solid tinned copper TPE 4 25 twist 1 75 flat 6 flat to 1 52 meters 3 04 meters flat 30 AWG solid 131 ohms 93 ohms 15 3 pF ft 1 45 ns ft 0 105 ohms ft 5 0 ft 10 0 ft tinned copper 70 Cheetah 15K 5 SCSI Product Manual Rev J 10 8 Terminator requirements Caution These drives do not have onboard internal terminators The user systems integrator or host equip ment manufacturer must provide a terminator arrangement external to the drive when termination is required For LW drives terminator modules can be purchased that plug between the SCSI I O cable and the drive I O connector or on the end of a short I O cable stub extending past the last cable connector LC drives are designed to be plugged into a backpanel connector without cabling 10 9 Terminator power LW drives You can configure terminator power from the drive to the SCSI bus or have the host adaptor or other device supply terminator power to the external terminator See Section 9 1 for illustrations that show how to place jumpers f
69. essage 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 6 2 7 Product warranty Beginning on the date of shipment to customer and continuing for a period of five years Seagate warrants that each product including components and subassemblies or spare part that fails to function properly under nor mal use due to defect in materials on workmanship or due to nonconformance to the applicable specifications will be repaired or replaced at Seagate s option and at no charge to customer if returned by customer at cus tomer s expense to Seagate s designated facility in accordance with Seagate s warranty procedure Seagate will pay for transporting the repair or replacement item to customer For more detailed warranty information refer to the Standard terms and conditions of Purchase for Seagate products 20 Cheetah 15K 5 SCSI Product Manual Rev J Shipping When transporting or shipping a drive a Seagate approved container must be used Keep your original box They are easily identified by the Seagate approved package label Shipping a drive in a non approved con tainer voids the drive warranty Seagate repair centers may refuse rece
70. f ff ff 00 00 00 00 00 00 00 00 ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff ff ff 00 00 00 00 00 00 00 00 ff ff ff ff 00 00 Ex 03 03 00 00 00 00 ff ff ff ff ff 00 05 05 00 00 00 00 00 00 EE ff ff EE 00 00 TE da da 00 00 00 00 ff Ef ff 00 57 57 00 04 04 00 01 01 Ef 00 00 87 02 02 00 00 00 00 80 80 20 00 00 00 00 00 00 00 00 00 20 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e6 e6 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 aa aa 00 00 00 00 00 00 00 3a 3a 00 00 00 00 al al 00 00 00 00 00 00 00 00 00 00 00 00 00 Table 12 ST373455 Mode sense data MODE SENSE HEADER DATA ab 00 10 08 08 8b b9 98 00 00 02 00 MODE ENSE PAGES DATA SAV 81 0a cO Ob ff 00 00 00 05 00 ff ff DEF 81 Oa c0 Ob ff 00 00 00 05 00 ff ff CHG 81 Oa ff ff 00 00 00 00 ff 00 ff ff Nn SAV 82 0e 80 80 00 0a 00 00 00 00 00 00 00 00 00 00 DEF 82 0e 80 80 00 Oa 00 00 00 00 00 00 00 00 00 00 CHG 82 Oe ff ff 00 00 00 00 00 00 ff ff 87 00 00 00 SAV 83 16 la 16 00 00 00 Oe 00 00 03 da 02 00 00 01 00 e6 00 aa 40 00 00 00 DEF 83 16 la 16 00 00 00 0e 00 00 03 da 02 00 00
71. for which the installation and interface cabling is designed Multimode I O circuits used by these drives do not operate at high voltage differential levels and should never be exposed to high voltage differential environments unless the common mode voltages in the environment are controlled to safe levels for single ended and low voltage differential devices see ANSI SPI 4 specification T10 1365D LC and LW model drives do not have onboard terminators Termination of the I O lines must be provided for by the Host equipment designers or end users LVD output characteristics Each differential signal driven by LVD interface drivers shall have the following output characteristics when measured at the disc drive connector Steady state Low level output differential voltage 0 32 V lt V 0 8 V signal negation logic 0 Steady state High level output differential voltage 0 32 V V 0 8 V signal assertion logic 1 68 Cheetah 15K 5 SCSI Product Manual Rev J LVD Input characteristics Each differential signal received by LVD interface receiver circuits shall have the following input characteristics when measured at the disc drive connector Steady state Low level input differential voltage 0 030 V lt Vi lt 3 6 V signal negation logic 0 Steady state High level input differential voltage 3 6 V lt Vi lt 0 030 V signal assertion logic 1 Differential voltage 0 030 V minimum with common mode v
72. formance characteristics 10 performance degradation 30 peripheral I O cable 24 physical characteristics 56 physical damage 32 physical interface 56 58 power 23 42 power connector 22 24 power control switch 12 power dissipation 26 power distribution 3 power sequencing 24 57 58 61 77 power supply voltage 14 power carrying conductor 60 power on 39 68 power on reset 51 power up 24 42 prefetch 12 prefetch read look ahead 12 prefetch mode 12 prefetch operation 12 prefetch segmented cache control 12 preventive maintenance 14 15 product data page 50 programmable drive capacity 9 R radio interference regulations 3 RCD bit 12 read error rate 14 read error rates 35 read retry count 35 read write head 10 ready 51 receive diagnostic results 37 receiver circuits 69 recommended mounting 31 Recoverable Errors 14 reference documents 5 regulation 22 23 relative humidity 29 reliability 8 reliability and service 15 reliability specifications 14 remote switch 39 repair information 21 REQ ACK offset 56 request sense command 37 resonance 30 S S M A R T 8 16 safe power transmission 60 safety 3 saved value 51 SCSI commands 46 interface data transfer rate 11 messages 45 SCSI bus cable 39 SCSI bus condition 55 SCSI bus ID 68 SCSI bus phase sequence 55 SCSI command 35 SCSI Commands Reference Manual 5 SCSI I O connector 58 78 SCSIID 39 42 SCSI interface 12 58 SCSI interface cable 59
73. ies and 5 levels for writes Cheetah 15K 5 SCSI Product Manual Rev J 35 Table 6 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 not include time taken to perform reallocations if reallocations are performed Reallocations are performed when the ARRE bit for reads or AWRE bit for writes is one the RC bit is zero and the Recovery Time Limit for the command has not yet been met Time needed to perform reallocation is not counted against the Recovery Time Limit The Read Continuous RC bit when set to one requests the disc drive to transfer the requested data length without adding delays for retries or ECC correction that may be required to insure data integrity The disc drive may send erroneous data in order to maintain the continuous flow of data The RC bit should only be used when data integrity is not a concern and speed is of utmost importance If the Recovery Time Limit or retry count is reached during error recovery the state of the RC bit is examined If the RC bit is set the drive will transfer the unrecovered data with no error indication and continue to execute the remaining command If the RC bit is not set the drive will stop data transfer with the last good LBA and report a Check Condition Unrecovered Read Error Table 6 Read and write retry count maximum recovery ti
74. ies with Chinese National Stan dard CNS 13438 and meets the Electromagnetic Compatibility EMC Framework requirements of the Tai wanese Bureau of Standards Metrology and Inspection BSMI 3 3 European Union Restriction of Hazardous 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 disc drives documented in this publication Current supplier declarations include disclosure of the inclusion of any RoHS regulated substance in such parts or materials 4 Cheetah 15K 5 SCSI Product Manual Rev J 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 in
75. ign and construction The drive depends upon its host equipment to provide adequate power and environment in order to achieve opti mum performance and compliance with applicable industry and governmental regulations Special attention must be given in the areas of safety power distribution shielding audible noise control and temperature regu lation In particular the drive must be securely mounted in order to guarantee the specified performance char acteristics Mounting by bottom holes must meet the requirements of Section 9 4 3 1 Standards The Cheetah 15K 5 SCSI family complies with Seagate standards as noted in the appropriate sections of this Manual the Seagate Parallel SCSI Interface Manual part number 100293069 and the SCSI Commands Ref erence Manual part number 100293068 The Cheetah 15K 5 SCSI disc drive is a UL recognized component per UL1950 CSA certified to CSA C22 2 No 950 95 and VDE or TUV certified to EN60950 3 1 1 Electromagnetic compatibility The drive as delivered is designed for system integration and installation into a suitable enclosure prior to use As such 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 Communica tions The design characteristics of the drive serve to minimize radiation when installed in an enclosure that provides reasonable shielding As such the driv
76. interface were not intended to support a series of drives To insure that both drive connector and host equipment mating connector mate properly both drive connector and host equipment mating connector must meet the provisions of SFF 8451 Specification for SCA 2 Unshielded Connections To obtain this specification visit the following web site www sffcommittee org 60 Cheetah 15K 5 SCSI Product Manual Rev J Recommended mating 80 position PCBA mount connectors Straight in connector Hot plug version with ground guide pin Seagate P N 77678703 Amp US P N 2 557103 1 787311 1 with polarization or 94 0680 02 1 Amp US P N 2 557103 2 787311 2 without polarization or 94 0680 02 2 Amp Japan P N 5 175475 9 Right angle to PCBA connectors Seagate P N 77678559 Amp US P N 2 557101 1 Amp Japan P N 5 175474 9 For additional information call Amp FAX service at 1 800 522 6752 adapter for Pin 1 location 1 2 3 4 5 6 7 LW Model e 2 through X SCSI devices 4 e SCSI ID 7 5 Pin 1 check your Closed end type 68 pin connector used Terminators enabled Open end type in line application connector used Host need not be on the end of the daisy chain Another device can be on the end with the terminator the host having no terminator Total interface cable length must not exceed that specified in ANSI document T10 1365D including host adapter initiator The cable length restric
77. ipt 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 Cheetah 15K 5 SCSI Product Manual Rev J 21 7 0 Physical electrical specifications This section provides information relating to the physical and electrical characteristics of the Cheetah 15K 5 SCSI drive 7 1 AC power requirements None 7 2 DC power requirements The voltage and current requirements for a single drive are shown in the following table Values indicated apply at the drive power connector The tables show current values in Amperes Table 3 ST3300655LC DC power requirements Notes LVD mode Voltage 5V 12 V Regulation 5 15 15 2 Average idle current DC X 1 6 0 70 0 80 Maximum starting current peak DC DC 30 3 0 76 1 94 peak AC AC 30 3 1 07 3 35 Delayed motor start max DC 30 1 4 0 57 0 03 Peak operating current _ DC X 1 0 69 1 18 Maximum DC 30 1 0 70 1 23 Maximum peak DC 30 1 38 2 90 22 Cheetah 15K 5 SCSI Product Manual Rev J Table 4 ST3146855
78. 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 5 SCSI Product Manual Rev J 13 6 0 Reliability specifications The following reliability specifications assume correct host drive operational interface including all interface timings power supply voltages environmental requirements and drive mounting constraints see Section 9 4 Seek Errors Less than 10 in 108 seeks Read Error Rates 1 Recovered Data Less than 10 errors in 10 bits transferred OEM default settings Unrecovered Data Less than 1 sector in 109 bits transferred OEM default settings Miscorrected Data Less than 1 sector in 10 bits transferred Annualized Failure Rate AFR 0 62 Preventive Maintenance None required Note 1 Error rate specified with automatic retries and data correction with ECC enabled and all flaws reallocated 6 1 Error rates The error rates stated in this specification assume the following The drive is operated per this specification using DC power as defined in this manual see Section 7 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 6 1 1 Recoverable Errors Recoverable errors are those detected and corrected by the drive and do not require
79. ith some host bus adapters This setting will not affect the Ultra320 functionality of the drive The drive can be changed between these two configurations 02 means response data in SCSI 2 SCSI 3 format 12 means the drive uses the hierarchical addressing mode to assign LUNs to logical units default is 12 R Four ASCII digits representing the last four digits of the product Firmware Release number This informa tion is also given in the Vital Product Data page COh together with servo RAM and ROM release num bers SH Eight ASCII digits representing the eight digits of the product serial number P Bytes 18 through 26 reflect model of drive The table above shows the hex values for Model ST3300655LW Refer to the values below for the values of bytes 18 through 26 of you particular model ST3300655LW 33 33 30 30 36 35 35 4C 57 ST3300655LC 33 38 30 30 36 35 35 4C 43 ST3146855LW 33 31 35 36 38 35 35 4C 57 ST3146855LC 33 31 35 36 38 35 35 4C 43 ST373455LW 33 37 33 34 35 35 4C 57 20 ST373455LC 33 37 33 34 35 35 4C 43 20 Copyright Year the year the drive s firmware code was built 10 3 1 Inquiry Vital Product data Instead of the standard Inquiry data shown in Table 9 the initiator can request several Vital Product Data pages by setting the Inquiry command EVPD bit to one The SCSI Commands Reference Manual lists the Vital Product Data pages and describes their formats A separate Inquiry command must be sent to the drive for each
80. latile memory that dictates which of the current values and saved values can be changed by a Mode Select command A one allows a change to a corresponding bit a zero allows no change For example in Table 10 refer to Mode page 01 in the row entitled CHG These are hex numbers representing the changeable values for mode page 01 Note that bytes 04 05 06 and 07 are not changeable because those fields are all zeros If some changeable code had a hex value EF that equates to the binary pattern 1110 1111 If there is a zero in any bit position in the field it means that bit is not changeable Bits 7 6 5 3 2 1 and 0 are changeable because those bits are all ones Bit 4 is not changeable Though the drive always reports non zero values in bytes 00 and 01 those particular bytes are never change able The Changeable values list can only be changed by downloading new firmware into the flash EPROM On standard OEM drives the Saved values are taken from the default values list and stored into the saved val ues storage location on the media prior to shipping When a drive is powered up it takes saved values from the media and stores them to the current values storage in volatile memory It is not possible to change the current values or the saved values with a Mode Select command before the drive is up to speed and is ready An attempt to do so results in a Check Condition status being returned Note Because there may b
81. mes 1 Read retry Maximum recovery time per LBA Write retry Maximum recovery time per LBA count 1 cumulative msec count cumulative msec 0 51 87 0 23 94 1 59 85 1 35 91 2 203 49 2 55 86 3 219 45 3 67 83 4 253 11 4 119 79 5 279 35 5 default 147 72 6 311 27 7 395 12 8 463 12 9 495 04 10 530 95 11 default 1 282 97 1 These values are subject to change Setting these retry counts to a value below the default setting could result in an increased unrecovered error rate which may exceed the value given 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 Therefore each command s total recovery time is subject to the recovery time limit Note A recovery time limit of O will
82. n 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 Tables 10 11 and 12 show the mode default settings for the drive 5 5 2 Prefetch operation If the Prefetch feature is enabled data in contiguous logical blocks on the disc immediately beyond that which was requested by a Read command are retrieved and stored in the buffer for immediate transfer 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 disc when
83. n 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 ST3300655LC CURRENT POWER vs THROUGHPUT SCSI LVD Random 8 Block Reads 1800 1600 1 400 1 200 1 000 0 800 Amperes 0 600 0 400 0 200 0 000 0 0 50 0 100 0 150 0 200 0 250 0 300 0 350 0 400 0 I Os per Second 4 5Volt A W 2 Volt A A Watts sem 19MOGJ Figure 3 ST3300655LC DC current and power vs IOPS LVD 26 Cheetah 15K 5 SCSI Product Manual Rev J ST3146855LW ST3146855LC For drives using low voltage differential interface circuits typical power dissipation under idle conditions is 10 39 watts 35 45 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 ST3146855LC CURRENT POWER vs THROUGHPUT SCSI LVD Random 8 Block Reads 1800 18 00 5VoltA E 2 Volt A 1600 1 00 4 Watts 1400 4 00 1200 2 00 Hi n 5 1000 000 Z S s 0 800 800 0 600 6 00 0 400 4 00 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 I Os per Se
84. nabled 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 disc 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 the 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 Cheetah 15K 5 SCSI Product Manual Rev J 37 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
85. nominal voltage has been applied the drive becomes ready within 20 seconds if the Motor Start Option is disabled i e the motor starts as soon as the power has been applied If a recoverable error condition is detected during the start sequence the drive executes a recovery procedure which may cause the time to become ready to exceed 20 seconds During spin up to ready time the drive responds to some com mands over the SCSI interface in less than 3 seconds after application of power Stop time is 30 seconds from removal of DC power If the Motor Start Option is enabled the internal controller accepts the commands listed in the SCSI Interface Product Manual less than 3 seconds after DC power has been applied After the Motor Start Command has been received the drive becomes ready for normal operations within 20 seconds typically excluding an error recovery procedure The Motor Start Command can also be used to command the drive to stop the spindle see the SCSI Commands Reference Manual There is no power control switch on the drive 5 4 Prefetch multi segmented cache control The drive provides prefetch read look ahead and multi segmented cache control algorithms that in many cases can enhance system performance Cache as used herein refers to the drive buffer storage space when itis used in cache operations To select prefetch and cache features the host sends the Mode Select command with the proper values in the applicable bytes in M
86. nous data transfer The data transfer period to be used by the drive and the initiator is established by an exchange of messages during the Message Phase of operation See the section on message protocol in the Parallel SCSI Interface Manual and SCSI Commands Reference Manual 10 5 1 Synchronous data transfer periods supported In the following tables M is the synchronous period value in the transfer rate negotiation message that repre sents the associated transfer period and transfer rate values Table 14 lists the synchronous data transfer periods supported by the drive in DT DATA phase DT DATA phase is only allowed when using the LVD interface Table 14 Synchronous DT DATA transfer periods Transfer period Transfer rate Transfer rate M decimal nanoseconds megatransfers second MBytes second on wide bus 8 6 25 160 0 320 0 9 12 5 80 0 160 0 10 25 40 0 80 0 12 50 20 0 40 0 25 100 10 0 20 0 Table 15 lists the synchronous data transfer periods supported by the drive in ST DATA phase ST DATA phase is allowed with either LVD or SE interface except as noted Table 15 Synchronous ST DATA transfer periods Transfer period Transfer rate M decimal nanoseconds megatransfers second 10 25 40 0 12 50 20 0 25 100 10 0 50 200 5 0 1 This transfer rate is only allowed when using the LVD interface 10 5 2 REQ ACK offset Cheetah 15K 5 SCSI family drives support REQ ACK offset values from 7 to 63 3Fh Offsets of 1 through
87. ode Page 08h see the SCSI Interface Product Manual Prefetch and cache operation are independent features from the standpoint that each is enabled and disabled independently via the Mode Select command However in actual operation the prefetch feature overlaps cache operation somewhat as is noted in Section 5 5 1 and Section 5 5 2 All default cache and prefetch Mode parameter values Mode Page 08h for standard OEM versions of this drive family are given in Table 10 5 5 Cache operation Note Refer to the SCSI Interface 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 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 SCSI Interface Manual data requested by the host with a read com mand is retrieved from the buffer if possible before any disc access is initiated If cache operation is not enabled the buffer is still used but only as circular buffer segments during disc medium read operations dis regarding 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
88. oltage range 0 845 V lt Vem lt 1 685 V T10 1302D revision 20b section A 3 1 VCCA DOE Single 1 Ended _ J Circuitry I I i Single 1 Ended 1 Ground Driver I I Ground Single Ended GND LVD Signal Signal Signal Negation Figure 18 Typical SE LVD alternative transmitter receiver circuits 10 7 1 1 General cable characteristics To Minimize discontinuities and signal reflections cables of different impedances should not be used in the same bus Implementations may require trade offs in shielding effectiveness cable length the number of loads transfer rates and cost to achieve satisfactory system operation If shielded and unshielded cables are mixed within the same SCSI bus the effect of impedance mismatch must be carefully considered Proper impedance matching is especially important in order to maintain adequate margin at fast SCSI transfer rates 10 7 1 2 Single ended drivers receivers The maximum total cable length allowed with drives using single ended l O driver and receiver circuits depends on several factors Table 21 lists the maximum lengths allowed for different configurations of drive usage These values are from the SPI documents All device I O lines must have equal to or less than 25 pf capacitance to ground measured at the beginning of the stub Table 21 Cable characteristics for single ended circuits Maximum number of Maximum length between SCSI S E Transmi
89. or this configuration LC drives These drives cannot furnish terminator power because no conductors in the 80 pin I O connector are devoted to terminator power Cheetah 15K 5 SCSI Product Manual Rev J 71 10 10 Disc drive SCSI timing 72 Cheetah 15K 5 SCSI Product Manual Rev J Table 24 Disc drive SCSI timing These values are not current Cheetah 15K 5 SCSI values but are listed for information only Waveform Waveform Description symbol 1 table 1 Typical timing Target Select Time no Arbitration TOO N A lt 1 us Target Select Time with Arbitration TO1 4 5 1 2 1 93 us Target Select to Command TO2 4 5 1 3 77 us Target Select to MSG Out TO3 4 5 2 1 57 us Identify MSG to Command T04 4 5 3 3 36 us Command to Status TO5 4 5 5 Command Depen dent Command to Data para In TO6 4 5 9 Command Depen dent Command to Data para Out T07 4 5 10 Command Depen dent Command to Data Write to Data Buffer T08 4 5 10 Command Depen dent Command to Disconnect MSG TO9 4 5 6 Command Depen dent Disconnect MSG to Bus Free T10 4 5 6 14 0 52 us Disconnect to Arbitration for Reselect T11 4 5 6 Command Depen This measures disconnected CMD over dent head Target win Arbitration for Reselect T12 4 5 7 3 00 us Arbitration to Reselect T13 4 5 7 1 60 us Reselect to Identify MSG In T14 4 5 7 1 39 us Reselect Identify MSG to Status T15 4 5 8 Comman
90. ore the interval expires then the error rate is considered to be acceptable In either case the interval 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 whenever the error rate is unacceptable and decremented not to exceed Cheetah 15K 5 SCSI Product Manual Rev J 17 zero whenever the error rate is acceptable This counter is referred to as the Failure History Counter There is a separate Failure History Counter for each attribute Should the counter continually be incremented such that it reaches the predictive threshold a predictive failure is signaled 6 2 5 Thermal monitor Cheetah 15K 5 SCSI 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 aS M A R T data frame on the drive which exceed 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 g
91. own in figure below Refer to Figures 8 and 9 for detailed mounting configuration dimensions See Section 9 4 Drive mounting Height max 1 028 in 26 11 mm Width max 4 010 in 101 85 mm Depth max 5 787 in 146 99 mm Weight max 1 85 pounds 0 839 kilograms K i REF x3 e a C i e l aria 1 am I H 4 J gt B R REF Notes 1 Mounting holes are 6 32 UNC 2B three 1 l on each side and four on the bottom A Max screw penetration into side of drive ae E EST DI is 0 15 in 3 81 mm Max screw n V je tightening torque is 6 0 in Ib 3 32 nm Z M with minimum full thread engagement of 2 C 0 12 in 3 05 mm X L U X A Dimension Table P Inches Millimeters A 1 028 max 26 10 max B 5 787 max 147 00 max y C 4 000 010 101 60 25 ia D 3 750 010 95 25 25 E 125 010 3 18 4 25 F 1 750 010 44 45 25 E 1 H 1 122 020 28 50 50 J 4 000 x 010 101 60 25 Sal K 250 010 6 35 25 gt L 1 638 010 41 60 25 M 181 020 4 60 50 P 1 625 020 41 28 50 R 1 816 46 13 S 315 8 00 T 015 max 0 38 max U 015 max 0 38 max V 265 010 6 73
92. pages 00h Y Translate page 40h Y Release 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 48 Cheetah 15K 5 SCSI Product Manual Rev J Table 8 Commands supported by Cheetah 15K 5 SCSI family drive Continued Command name Command code Supported by SCSI 2 3 Translate page 40h Y Set Limits 33h N Start Unit Stop Unit spindle ceases rotating 1Bh Y Synchronize Cache 35h Y 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 The drive can format to any even number of bytes per sector from 512 to 528 2 Tables 10 show how individual bits are set and which are changeable by the host 3 WARNING A power loss during flash programming can result in firmware corruption
93. re and log ical block addressing The head and disc assembly HDA is sealed at the factory Air circulates within the HDA through a non replaceable filter to maintain a contamination free HDA environment Never disassemble the HDA and do not attempt to service items in the sealed enclosure heads media actu ator etc as this requires special facilities The drive contains no replaceable parts Opening the HDA voids your warranty Cheetah 15K 5 SCSI drives use a dedicated landing zone at the innermost radius of the media to eliminate the possibility of destroying or degrading data by landing in the data zone The drive automatically goes to the landing zone when power is removed 6 Cheetah 15K 5 SCSI Product Manual Rev J An automatic shipping lock prevents potential damage to the heads and discs that results from movement dur ing shipping and handling The shipping lock automatically disengages when power is applied to the drive and the head load process begins A high performance actuator assembly with a low inertia balanced patented straight arm design provides excellent performance with minimal power dissipation 4 1 Standard features The Cheetah 15K 5 SCSI family has the following standard features Perpendicular recording technology Integrated Ultra320 SCSI interface Multimode SCSI drivers and receivers single ended SE and low voltage differential LVD 16 bit I O data bus Asynchronous and synchronous
94. reates 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 a 4 bit field that reports the results of the test If the field is zero the drive passed with no errors detected by the DST If the field is not 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 6 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 m
95. removal Case 4 Current I O process allowed during insertion or removal except on the device being changed Seagate Cheetah 15K 5 SCSI disc drives support all four hot plugging cases Provision shall be made by the system such that a device being inserted makes power and ground connections prior to the connection of any device signal contact to the bus A device being removed shall maintain power and ground connections after the disconnection of any device signal contact from the bus see SFF 8451 Specification for SCA 2 Unshielded Connections It is the responsibility of the systems integrator to assure that no hazards from temperature energy voltage or ESD potential are presented during the hot connect disconnect operation All I O processes for the SCSI device being inserted or removed shall be quiescent All SCSI devices on the bus shall have receivers that conform to the SPI 4 standard If the device being hot plugged uses single ended SE drivers and the bus is currently operating in low voltage differential LVD mode then all I O processes for all devices on the bus must be completed and the bus qui esced before attempting to hot plug Following the insertion of the newly installed device the SCSI host adapter must issue a Bus Reset followed by a synchronous transfer negotiation Failure to perform the SCSI Bus Reset could result in erroneous bus operations The SCSI bus termination and termination power source shall be external
96. rved GND 20 39 40 54 GND GND 21 41 42 55 ATN GND 22 43 44 56 GND GND 23 45 46 57 BSY GND 24 47 48 58 ACK GND 25 49 50 59 RST GND 26 51 52 60 MSG GND 27 53 54 61 SEL GND 28 55 56 62 C D GND 29 57 58 63 REQ GND 30 59 60 64 I O GND 31 61 62 65 DB8 GND 32 63 64 66 DB9 GND 33 65 66 67 DB10 GND 34 67 68 68 DB11 Notes See page following Table 20 64 Cheetah 15K 5 SCSI Product Manual Rev J Table 18 LW 68 conductor LVD P cable signal pin assignments 11 Note A minus sign preceding a signal name indicates that signal is active low Connector Connector Signal contact Cable conductor contact Signal name 1 number 3 number 2 number 3 name 1 DB12 1 1 2 35 DB12 DB13 2 3 4 36 DB13 DB14 3 5 6 37 DB14 DB15 4 7 8 38 DB15 DBP1 5 9 10 39 DBP1 DBO 6 11 12 40 DBO DB1 7 13 14 41 DB1 DB2 8 15 16 42 DB2 DB3 9 17 18 43 DB3 DB4 10 19 20 44 DB4 DB5 11 21 22 45 DB5 DB6 12 23 24 46 DB6 DB7 13 25 26 47 DB7 DBP 14 27 28 48 DBP Ground 15 29 30 49 Ground DIFFSNS 8 16 31 32 50 Ground TermPwr 17 33 34 51 TermPwr TermPwr 18 35 36 52 TermPwr Reserved 19 37 38 53 Reserved Ground 20 39 40 54 Ground ATN 21 41 42 55 ATN Ground 22 43 44 56 Ground BSY 23 45 46 57 BSY ACK 24 47 48 58 ACK RST 25 49 50 59 RST MSG 26 51 52 60 MSG SEL 27
97. s enabled and the drive has not yet received a Start Motor command See Section 7 2 1 Conducted Noise Immunity Specified voltage tolerance is inclusive of ripple noise and transient response During idle the drive heads are relocated every 60 seconds to a random location within the band from three quarters to maximum track General Notes for Tables 3 4 and 5 1 Minimum current loading for each supply voltage is not less than 1 296 of the maximum operating current shown The 5 and 12 volt supplies shall employ separate ground returns Where power is provided to multiple drives from a common supply careful consideration for individual drive power requirements should be noted Where multiple units are powered on simultaneously the peak Cheetah 15K 5 SCSI Product Manual Rev J 23 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 7 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 0 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 7 2 2 Power sequencing The drive does not require power sequencing The drive protects against
98. s is rounded down to the maximum capacity 4 6 Factory installed accessories OEM Standard drives are shipped with the Cheetah 15K 5 Installation Guide part number 100384777 and the Safety and Regulatory Agency Specifications part number 75789512 unless otherwise specified The factory also ships with the drive a small bag of jumper plugs used for the J5 and J6 option select jumper headers on LW models only 4 7 Options factory installed All customer requested options are incorporated during production or packaged at the manufacturing facility 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 Cheetah 15K 5 Installation Guide part number 100384777 usually ships with each standard OEM drive Extra copies may be ordered The Safety and Regulatory Agency Specifications part number 7578951 2 usually ships with each standard OEM drive Extra copies may be ordered 4 8 Accessories The following accessories are available All accessories may be installed in the field Single unit shipping pack
99. ssion line impedance 1 O transfer rate devices on the bus terminators REQ ACK Other signals lt 10M transfers s Fast 10 16 wide SCSI bus 3 meters 9 8 ft 90 6 Ohms 90 10 Ohms lt 20M transfers s Fast 20 4 wide SCSI bus 3 meters 9 8 ft 90 6 Ohms 90 10 Ohms lt 20M transfers s Fast 20 8 wide SCSI bus 1 5 meters 4 9 ft 90 6 Ohms 90 10 Ohms A stub length of no more than 0 1 meter 0 33 ft is allowed off the mainline interconnection with any connected equipment The stub length is measured from the transceiver to the connection to the mainline SCSI bus Cheetah 15K 5 SCSI Product Manual Rev J 69 Single ended I O cable pin assignments for LW drives are shown in Table 18 Single ended I O pin assignments for LC models are shown in Table 19 The LC model does not require an I O cable It is designed to connect directly to a back panel connector 10 7 1 3 Cables for low voltage differential drivers receivers The SPI 3 and SPI 4 specification for differential impedance for LVD cables is 122 5 12 5 ohms The maximum SCSI bus length between the terminators for a SCSI LVD point to point system one initiator and one target is 25 meters 82 feet The maximum SCSI bus length between the terminators for a SCSI LVD multidrop system up to 16 total SCSI devices is 12 meters 39 37 feet However implementation of this 12 meter total length is dependent on the configuration of the system an
100. st 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 44 Cheetah 15K 5 SCSI Product Manual Rev J 10 0 Interface requirements This section partially describes the interface requirements as implemented on the drives 10 1 General description This section describes in essentially general terms the interface requirements supported by the Cheetah 15K 5 SCSI No attempt is made to describe all of the minute details of conditions and constraints that must be con sidered by designers when designing a system in which this family of drives can properly operate Seagate declares that the drives operate in accordance with the appropriate ANSI Standards referenced in various places herein with exceptions as noted herein or in the Seagate Parallel SCSI Interface Manual and the SCSI Commands Reference Manual 10 2 SCSI interface messages supported Table 7 lists the messages supported by the Cheetah 15K 5 SCSI family drives Table 7 SCSI messages supported by Cheetah 15K 5 SCSI family drives Supported Y yes Message name Message code N no Abort 06h Y Abort tag ODh Y Bus device reset OCh Y Clear ACA 16h N Clear queue OEh Y Command complete 00h Y Continue I O process 12h N Disconnect 04h Y Extended messages O
101. tah 15K 5 SCSI Product Manual Rev J 67 Notes for Tables 17 through 20 1 See Section 10 6 4 1 for detailed electrical characteristics of these signals 2 The conductor number refers to the conductor position when using 0 025 inch 0 635 mm centerline flat ribbon cable Other cables types may be used to implement equivalent contact assignments 3 Connector contacts are on 0 050 inch 1 27 mm centers 4 Front panel LED signal indicates drive activity for host front panel hard drive activity indicator b Asserted by host to enable Motor Start option enables starting motor via SCSI bus command 6 Asserted by host to enable Delayed Motor Start option motor starts at power on or after a delay of 12 sec onds times drive ID This and 3 above are mutually exclusive options 7 Binary code on A3 A2 A1 and AO asserted by host to set up SCSI bus ID in drive 8 GND provides a means for differential devices to detect the presence of a single ended device on the bus Drive will not operate I O bus at Ultra2 or faster SCSI data rates if this is grounded 9 Signals 4 through 7 are used in place of installing jumpers and cables on option select connector J6 See Section 8 1 1 notes 10 NC means no connection 11 8 bit devices which are connected to the 16 data bit LVD I O shall leave the following signals open DB8 DB9 DB10 DB11 DB12 DB13 DB14 DB15 and DBP1 8 bit devices which are connec
102. tandards and reference documentation lllll uusuu 3 3 1 Standards ee Ls queque red qr verra Ra 3 3 1 1 Electromagnetic compatibility llle 3 3 1 2 Electromagnetic susceptibility llle 3 3 2 Electromagnetic compliance 0 00 eee 4 3 3 European Union Restriction of Hazardous Substances RoHS 4 3 4 Reference documents 0 00 cece eee ee te nents 5 General description o oocooccoconnc hh hh hh hh 6 4 1 standard features barriada os Headache WIRE Ones dd X eet e da 7 4 2 Media characteristics 0 0 0 rra cee hh 7 4 3 Performance aede AA Vp EAR a gra ede Bie goer TE Sen F 8 4 4 Fieliability uo zit een ita te e xt ER n RR ARR A GR RIR M AAE Mg bed 8 4 5 Formatted capacities tits ei hte bused ikea Hx VELIE AAA 8 4 5 1 Programmable drive capacity a aaau aaau nananana aaa 9 4 6 Factory installed accessories 0 0c 9 4 7 Options factory installed 0 2 0 0 0c 9 4 8 ACCOSSONCS buena Rep SA Aa beara wha ei eG eue z 9 Performance characteristics 00 0 cece eee mn 10 5 1 Internal drive characteristics transparent to user 000 eee 10 5 2 SCSI performance characteristics visible to user 00000 cece eee eee 10 5 2 1 Sok IME ora rI SN ES ERE ARE a E ERAT A E SEE died 11 5 2 2 Format command execution time minutes 1 oaan anaana 11 5 2 3 Generalized performance characteristics o oo ea
103. ted to the 16 data bit single ended SE I O shall have the following signals open DB8 DB9 DB10 DB11 DB12 DB13 DB14 DB15 and DBP1 All other signals should be connected as shown 12 Pins 38 39 40 44 78 79 and 80 are option select pins and are tied high by the drive circuitry The pre ferred electrical connection at the backplane is either open or grounded open for the 1 setting grounded for the 0 setting Alternatively these pins may be driven by a 3 3V logic device pulled up to 3 3V through a pull up resistor recommended size of 10K ohm or grounded through some other means 10 7 Electrical description Cheetah 15K 5 SCSI drives are multimode devices That is their I O circuits can operate as either single ended or low voltage differential drivers receivers selectable using the I O DIFFSENS line See ANSI Standard T10 1320D for detailed electrical specifications 10 7 1 Multimode SE and LVD alternatives When the interface DIFFSNS line is between 0 35 V and 0 5 V the drive interface circuits operate single ended and up to and including 20 M transfers s Fast 20 or Ultra SCSI When DIFFSNS is between 0 7 V and 1 9 V the drive interface circuits operate low voltage differential and up to and including 160 M transfers s or less Fast 160 or Ultra320 SCSI This multimode design does not allow dynamically changing transmission modes Drives must operate only in the mode
104. ternal auditing process to ensure that all standard operating procedures are complied with 3 4 Reference documents Cheetah 15K 5 SCSI Installation Guide Safety and Regulatory Agency Specifications SCSI Commands Reference Manual Parallel SCSI Interface Product Manual Seagate P N 100384777 Seagate P N 75789512 Seagate P N 100293068 Seagate P N 100293069 Applicable ANSI small computer system interface SCSI document numbers T10 1143D T10 1416D T10 1417D T10 1157D T10 1365D SFF 8451 Package Test Specification Package Test Specification Enhanced SCSI Parallel Interface EPI Primary Commands 3 SPC 3 SCSI Block Commands SBC 2 SCSI Architectural Model 2 SAM 2 SPI 4 SCSI Parallel Interface version 4 Specification for SCA 2 Unshielded Connections Seagate P N 30190 001 under 100 Ib Seagate P N 30191 001 over 100 Ib Specification Acoustic Test Requirements and Procedures Seagate P N 30553 001 In case of conflict between this document and any referenced document this document takes precedence Cheetah 15K 5 SCSI Product Manual Rev J 4 0 General description Cheetah 15K 5 SCSI drives combine Tunneling Magnetoresistive TMR heads and a wide Ultra320 SCSI interface to provide high performance high capacity data storage for a variety of systems including engineer ing workstations network servers mainframes and supercomputers Ultra320 SCSI uses negotiated transfer rates These transfer rates will
105. tion limits the total number of devices allowed SCSI ID7 has highest arbitration priority then ID15 to ID8 ID 8 has the very lowest priority Last drive on the daisy chain Open end type 68 pin connector used If end device use external terminator and closed end type 68 pin connector Figure 15 SCSI daisy chain interface cabling for LW drives Cheetah 15K 5 SCSI Product Manual Rev J 61 3 650 005 346 270 gt 3937 600 0787 200 ms o Nm o i F o A N 15 24 519 20 4 13 18 15 08 P 25 P 1 816 uit Pos dee 2 54 46 13 Position 1 315 1 Pos IL x 45j chamfer 8 00 1 2 16 typ E i AY AAA sl wile ole 6 2 815 010 J HEH 900 8 00 L am a a P 25 Pos 35 001 E 840 005 083 pgedia 5 54 p 1 650 21 34 G 00 41 91 0787 Eus c Pos 68 2 00 2 j urcare ins 980 1 368 pa 767 4 places 24 89 37 74 19 48 L 3 650 92 71 Figure 16 Nonshielded 68 pin SCSI device connector used on LW drives 62 Cheetah 15K 5 SCSI Product Manual Rev J 7 00 i 276 12 70 i 500 End View Grounding e i Pins 2 15 0 10 2 places 57 87 0 2 2 278
106. tions This is usually done by installing small shorting jumpers on the J5 connector see Figure 10 or via the drive to host I O signals on the LC model Some users connect cables to J5 and perform the set up using remote switches Configure drive options For option jumper locations and definitions refer to Figures 10 and 11 Drive default mode parameters are not normally needed for installation Refer to Section 10 3 2 for default mode parameters if they are needed Ensure that the SCSI ID of the drive is not the same as the host adapter Most host adapters use SCSI ID 7 because ID 7 is the highest priority on both 8 and 16 bit data buses f multiple devices are on the bus set the drive SCSI ID to one that is not presently used by other devices on the bus fthe drive is the only device on the bus attach it to the end of the SCSI bus cable The user system integra tor or host equipment manufacturer must provide external terminators Note For additional information about terminator requirements refer to Sections 10 8 and 10 9 Set all appropriate option jumpers for desired operation prior to power on If jumpers are changed after power has been applied recycle the drive power to make the new settings effective Installation instructions are provided by host system documentation or with any additionally purchased drive installation software If necessary see Section 10 for Seagate support services telephone numbers Do not
107. to the device being inserted or removed End users should not mix devices with high voltage differential HVD drivers and receivers and devices with SE LVD or multimode drivers and receivers on the same SCSI bus since the common mode voltages in the HVD environment may not be controlled to safe levels for SE and LVD devices see ANSI SPI 4 The disc drive spindle must come to a complete stop prior to completely removing the drive from the cabinet chassis Use of the Stop Spindle command or partial withdrawal of the drive enough to be disconnected from the power source prior to removal are methods for insuring that this requirement is met During drive insertion care should be taken to avoid exceeding the limits stated in Section 7 4 4 Shock and vibration in this manual 6 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 drive degradation and is designed to provide sufficient warning of a failure to allow data back up before an actual failure occurs Note The firmware will monitor specific attributes for degradation over time but cannot predict instanta neous drive failures Each attribute monitors a specific set of conditions in the operating performance of the drive and the thresh olds are optimized to minimize false predictions 16 Cheetah 15K 5 SCSI Product Manual Rev J Controlling S M A R T The operating mo
108. transfer rate Interface type Fast 20 Fast 40 Fast 80 Fast 160 drive models Asynchronous Fast 5 Fast 10 Ultra Ultra2 Ultra160 Ultra320 SE ST3300655LW LC ST3146855LW LC yes yes yes yes no no no ST373455LW LC LVD ST3300655LW LC ST3146855LW LC yes yes yes yes yes yes yes ST373455LW LC 10 6 3 SCSI interface cable requirements The characteristics of cables used to connect parallel interface drives are discussed in the ANSI standards ref erenced in this section 10 6 3 1 Cable requirements The characteristics of cables used to connect Ultra320 SCSI parallel interface devices are discussed in detail in Section 6 of ANSI Standard T10 1365D Rev 3 The cable characteristics that must be considered when interconnecting the drives described in this manual in a Ultra320 SCSI parallel daisy chain interconnected system are characteristic impedance see T10 1365D Sections 6 3 3 and 6 3 4 propagation delay see T10 1365D Sections 6 3 6 and 6 3 7 stub length see T10 1365D Section 6 9 device spacing see T10 1365D Section 6 9 To minimize discontinuances and signal reflections cables of different impedances should not be used in the same bus Implementations may require trade offs in shielding effectiveness cable length number of loads and spacing transfer rates and cost to achieve satisfactory system operation If shielded and unshielded cables are mixed within the same SCSI bus the effect of impedance mismatch must
109. um 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 Reporting control Reporting is controlled in the Informational Exceptions Control Page 1Ch Subject to the reporting method the firmware will issue a 01 5D00 sense code to the host 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 error rate increases to an unacceptable level To determine rate error events are logged and compared to the num ber of total operations for a given attribute The interval defines the number of operations over which to mea sure 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 rate hence for each attribute the occurrence of an error is 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 simply 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 the interval If the number of errors exceeds the threshold before the interval expires then the error rate is considered to be unacceptable If the number of errors does not exceed the threshold bef
110. use the SCSI device to perform certain actions and can alter the SCSI bus phase sequence Other miscellaneous operating features supported are also listed here Refer to the Parallel SCSI Interface Manual and the SCSI Commands Reference Manual for details Table 13 SCSI bus conditions and other miscellaneous features Condition feature supported by Supported Conditions or feature Adaptive Caching Arbitrating System Asynchronous Data Transfer Asynchronous Event Notification Attention Condition Auto Contingent Allegiance Condition Contingent Allegiance Condition Deferred Error Handling Disconnect Reconnect High voltage differential HVD interface available Low voltage differential LVD interface available Parameter Rounding controlled by the Round bit in Mode Select page 0 Queue tagging up to 64 Queue tags supported Reporting actual retry count in Extended Sense bytes 15 16 and 17 Reset Condition Segmented Caching Synchronous Data Transfer Z lt lt lt lt lt lt lt Z lt lt lt Z lt Z lt lt lt Zero Latency Read Supported Status Good Check Condition Condition Met Good Busy Intermediate Good Intermediate Condition Met Good Reservation Conflict Queue Full ACA Active Z lt lt lt lt lt lt lt lt Cheetah 15K 5 SCSI Product Manual Rev J 55 10 5 Synchro
111. ve activity LED status Spindle status Command status LED status Spinning up with DC power applied N A On until spinup is complete Spun down Start Unit On while processing the command Powered down by removal of DC N A Off due to absence of power power Spun up Stop Unit On while processing the command Spun down No command activity Off Spun down Write Read Buffer On while processing the command Spun down SCSI Bus Reset On while processing the reset Spun down Test Unit Ready On while processing the command Spun up No command activity Off Spun up Write Read On while processing the command Spun up SCSI Bus Reset On while processing the reset Spun up Test Unit Ready On while processing the command Spun up Format with Immediate option on On while the command is initially processed Spun up Format without Immediate LED toggles on off on each cylinder boundary Spun up Write Same Command in prog Toggles on off ress 74 Cheetah 15K 5 SCSI Product Manual Rev J Index Symbols 5 and 12 volt supplies 23 Numerics 68 conductor connector 60 68 pin connector 61 80 conductor connector 60 80 conductor interface 60 80 pin connector option 59 80 pin I O connector 66 67 A AC power 22 access time 11 accessories 9 acoustics 33 activity indicator 68 activity LED 74 actuator 43 actuator assembly 7 AFR 14 air cleanliness 32 air flow 43 suggested 43 altitude 29
112. verable Errors 14 V vibration 30 32 vital product data 50 volatile memory 51 voltage 22 23 W warranty 8 20 wet bulb temperature 29 wide Ultra160 SCSI interface 6 WP jumper 42 write protect 42 write retry count 35 Z zoned bit recording ZBR 7 Cheetah 15K 5 SCSI Product Manual Rev J 79 Seagate Seagate Technology LLC 920 Disc Drive Scotts Valley California 95066 4544 USA Publication Number 100384776 Rev J
113. 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 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 38 Cheetah 15K 5 SCSI Product Manual Rev J 9 0 Installation Note These drives are designed to be used only on single ended SE or low voltage differential LVD busses Do not install these drives on a high voltage differential HVD bus The first thing to do when installing a drive is to set the drive SCSI ID and set up certain operating op
114. xplaining the functions of the various jumpers on J5 and J6 jumper header connectors are given here and in Section 9 1 2 The term default means as standard OEM units are configured with a jumper on those positions when shipped from factory Off means no jumper is installed On means a jumper is installed OFF or ON underlined is factory default condition The PCBA on LC models does not have connector J5 or J6 The J5 connector signals conform to SFF 8009 Revision 2 0 Unitized Connector for Cabled Drives signal assignments for auxiliary connectors These signals are also on 80 pin J1 I O connector See tables 19 and 20 note 9 Voltage supplied by the drive Dashed area is optional host circuitry external to the drive connected to host supplied optional usage plug Do not connect anything to J5 pins 9 11 12 or J6 pins 13 20 Connect an external Drive Activity LED to J5 pin 8 see Figure 10 and the drive s 5V power source through an appropriately sized current limiting resistor Cheetah 15K 5 SCSI Product Manual Rev J 41 9 1 2 J6 jumper installation SE On Off DS ME Off Off Off On On Off On On WP On Off RES Off TP Off Function description Jumper function description Forces drive to use single ended I O drivers receivers only Drive can operate on the interface in low voltage differential mode or single ended depend ing on the voltage state of the I O DIFFSNS line Default is SE jump

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