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Seagate Cheetah ST3146807LW, Product Manual

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Seagate Cheetah ST3146807LW Product Manual Download Page 11

Cheetah 10K.6 SCSI Product Manual, Rev. D

1

1.0

Scope

This manual describes Seagate

®

 Technology LLC, Cheetah

®

 10K.6 SCSI disc drives.

Cheetah 10K.6 SCSI drives support the small computer system interface (SCSI) as described in the ANSI
SCSI SPI-3 interface specifications to the extent described in this manual. The 

SCSI Interface Product Manual

(part number 75789509) 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 10K.6 SCSI models is referred to as “the
drive” unless references to individual models are necessary. 

Figure 1.

Cheetah 10K.6 SCSI family drive (ST3146807LW shown)

Summary of Contents for Cheetah ST3146807LW

Page 1: ... Cheetah 10K 6 SCSI Disc Drive ST3146807LW LC ST373307LW LC ST336607LW LC Product Manual Volume 1 ...

Page 2: ......

Page 3: ... Cheetah 10K 6 SCSI Disc Drive ST3146807LW LC ST373307LW LC ST336607LW LC Product Manual Volume 1 ...

Page 4: ...logy LLC Cheetah SeaFAX SeaFONE SeaBOARD and SeaTDD are registered trademarks or trademarks of Seagate Technology LLC Other product names are registered trademarks or trademarks of their owners Seagate reserves the right to change without notice product offerings or specifications No part of this publica tion may be reproduced in any form without written permission of Seagate Technology LLC ...

Page 5: ...rt number 75789509 If you need the SCSI Interface information order the Volume 2 Interface Manual part number 75789509 Revision Date Writer Engineer Sheets Affected Rev A 06 21 2002 K Schweiss B Hohn 1 1 v viii 1 83 Rev B 07 29 2002 K Schweiss B Hohn 8 16 30 and 32 Rev C 08 15 2002 K Schweiss B Hohn 8 21 and 32 Rev D 03 03 2003 K Schweiss B Hohn Front and back cover 14 33 34 and 49 ...

Page 6: ......

Page 7: ...inutes 8 4 2 3 Generalized performance characteristics 8 4 3 Start stop time 9 4 4 Prefetch multi segmented cache control 9 4 5 Cache operation 9 4 5 1 Caching write data 10 4 5 2 Prefetch operation 11 4 5 3 Optimizing cache performance for desktop and server applications 11 5 0 Reliability specifications 13 5 1 Error rates 13 5 1 1 Environmental interference 13 5 1 2 Read errors 13 5 1 3 Write er...

Page 8: ...ive mounting 43 8 5 Grounding 43 9 0 Interface requirements 45 9 1 General description 45 9 2 SCSI interface messages supported 45 9 3 SCSI interface commands supported 46 9 3 1 Inquiry Vital Product data 49 9 3 2 Mode Sense data 50 9 4 SCSI bus conditions and miscellaneous features supported 54 9 5 Synchronous data transfer 55 9 5 1 Synchronous data transfer periods supported 55 9 5 2 REQ ACK off...

Page 9: ...ons per second LVD 27 Figure 12 ST336607 DC current and power vs input output operations per second SE 28 Figure 13 ST336607 DC current and power vs input output operations per second LVD 28 Figure 14 Location of the HDA temperature check point 29 Figure 15 Recommended mounting 31 Figure 16 LW mounting configuration dimensions 33 Figure 17 LC mounting configuration dimensions 34 Figure 18 J6 jumpe...

Page 10: ......

Page 11: ...3 interface specifications to the extent described in this manual The SCSI Interface Product Manual part number 75789509 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 10K 6 SCSI models is referred to as the drive unless references to individual models are necessary Figure 1 Cheetah 10...

Page 12: ...2 Cheetah 10K 6 SCSI Product Manual Rev D ...

Page 13: ...s 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 2 1 2 Electromag...

Page 14: ...438 and meets the Electromagnetic Compatibility EMC Framework requirements of the Taiwanese Bureau of Standards Metrology and Inspec tion BSMI 2 3 Reference documents Cheetah 10K 6 SCSI Installation Guide Seagate P N 100195488 Safety and Regulatory Agency Specifications Seagate P N 75789512 SCSI Interface Product Manual Seagate P N 75789509 Applicable ANSI small computer system interface SCSI docu...

Page 15: ... multiple initiators disconnect reconnect self configuring host software and automatic features that relieve the host from the necessity of knowing the physical characteristics of the targets logical block addressing is used 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 d...

Page 16: ...ed when power is applied to the drive Zoned bit recording ZBR Vertical horizontal or top down mounting Dynamic spindle brake 8 192 kbytes data buffer Hot plug compatibility Section 9 6 4 2 lists proper host connector needed for LC model drives Drive Self Test DST Supports SCSI bus fairness 3 2 Media characteristics The media used on the drive has an aluminum substrate coated with a thin film magne...

Page 17: ...ry installed accessories OEM Standard drives are shipped with the Cheetah 10K 6 SCSI Installation Guide part number 100195488 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 J2 J5 and J6 option select jumper headers on LW models only 3 8 Options factory installed All c...

Page 18: ...20 Mbytes sec ST3146807 ST373307 ST336607 Drive capacity 146 8 73 4 36 7 GByte formatted rounded off values Read write heads 8 4 2 Bytes track 368 368 368 Kbytes average rounded off values Bytes surface 18 350 18 350 18 350 Mbytes unformatted rounded off values Tracks surface total 49 855 49 855 49 855 Tracks user accessible Tracks inch 64 000 64 000 64 000 TPI Peak bits inch 570 570 570 KBPI Inte...

Page 19: ...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 Interface Product Manual There is no power control switch on the drive 4 4 Prefetch multi segmented cache control The drive provides prefetch read look ahead and multi segmented cache ...

Page 20: ...nteger number of disc medium sectors The wrap around capability of the individual segments greatly enhances the buffer s overall performance as a cache storage allowing a wide range of user selectable config urations which includes their use in the prefetch operation if enabled even when cache operation is disabled see Section 4 5 2 The number of segments is set dynamically by the drive and cannot...

Page 21: ...hen it senses that a prefetch hit will likely occur even if two consecutive read operations were not for physically contiguous blocks of data e g software interleave ARLA disables prefetch when it decides that a prefetch hit will not likely occur If the host is not using software interleave and if two sequential read operations are not for contiguous blocks of data ARLA disables prefetch but as lo...

Page 22: ...12 Cheetah 10K 6 SCSI Product Manual Rev D ...

Page 23: ...em recovery procedures without operator interven tion 5 1 2 Read errors Before determination or measurement of read error rates The data that is to be used for measurement of read error rates must be verified as being written correctly on the media All media defect induced errors must be excluded from error rate calculations 5 1 3 Write errors Write errors can occur as a result of media defects en...

Page 24: ...e shall have accumulated at least nine months of operation Data shall be cal culated on a rolling average base for a minimum period of six months MTBF is based on the following assumptions 8 760 power on hours per year 250 average on off cycles per year Operations at nominal voltages Systems will provide adequate cooling to ensure the case temperatures specified in Section 6 4 1 are not exceeded D...

Page 25: ...lure to perform the SCSI Bus Reset could result in erroneous bus operations The SCSI bus termination and termination power source shall be external 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 ...

Page 26: ...nterval 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 r...

Page 27: ... exceeded S M A R T data is collected and a frame is saved to the disc 5 2 9 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 ext...

Page 28: ... short 2 extended These testing options are described in the following two subsections Each test consists of three segments an electrical test segment a servo test segment and a read verify scan segment Short test Function Code 001b The purpose of the short test is to provide a time limited test that tests as much of the drive as possible within 120 seconds The short test does not scan the entire ...

Page 29: ... other abort mechanisms will be reported as a 02 self test routine was interrupted by a reset condition 5 2 10 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 d...

Page 30: ...20 Cheetah 10K 6 SCSI Product Manual Rev D ...

Page 31: ...e 12 V current profile in Figure 2 4 This condition occurs when the Motor Start Option is enabled and the drive has not yet received a Start Motor command Notes ST3146807 ST373307 SE mode LVD mode SE mode LVD mode Voltage 5 V 12 V 5 V 12 V 5 V 12 V 5 V 12 V Regulation 5 5 5 2 5 5 2 5 5 2 5 5 2 Average idle current DC X 1 7 0 84 0 51 0 89 0 51 0 73 0 35 0 78 0 34 Maximum starting current peak DC DC...

Page 32: ...low are peak to peak measurements and apply at the drive power con nector 6 2 2 Power sequencing The drive does not require power sequencing The drive protects against inadvertent writing during power up and down Daisy chain operation requires that power be maintained on the SCSI bus terminator to ensure proper termination of the peripheral I O cables To automatically delay motor start based on th...

Page 33: ...Cheetah 10K 6 SCSI Product Manual Rev D 23 Figure 2 Typical ST3146807drive 12 V current profile Figure 3 Typical ST3146807 drive 5 V current profile ...

Page 34: ...24 Cheetah 10K 6 SCSI Product Manual Rev D Figure 4 Typical ST373307 drive 12 V current profile Figure 5 Typical ST373307 drive 5 V current profile ...

Page 35: ...Cheetah 10K 6 SCSI Product Manual Rev D 25 Figure 6 Typical ST336607 drive 12 V current profile Figure 7 Typical ST336607 drive 5 V current profile ...

Page 36: ...ent and total watts on the vertical axis To calculate BTUs per hour multiply watts by 3 4123 Figure 8 ST3146807 DC current and power vs input output operations per second SE Figure 9 ST3146807 DC current and power vs input output operations per second LVD ST3146807 DC CURRENT POWER vs THROUGHPUT Single Ended Random 8 Block Reads 0 400 0 600 0 800 1 000 1 200 1 400 1 600 1 800 0 0 50 0 1 00 0 1 50 ...

Page 37: ...atts on the vertical axis To calculate BTUs per hour multiply watts by 3 4123 Figure 10 ST373307 DC current and power vs input output operations per second SE Figure 11 ST373307 DC current and power vs input output operations per second LVD ST373307 DC CURRENT POWER vs THROUGHPUT Single Ended Random 8 Block Reads 0 200 0 400 0 600 0 800 1 000 1 200 1 400 1 600 0 0 50 0 1 00 0 1 50 0 200 0 250 0 30...

Page 38: ...otal watts on the vertical axis To calculate BTUs per hour multiply watts by 3 4123 Figure 12 ST336607 DC current and power vs input output operations per second SE Figure 13 ST336607 DC current and power vs input output operations per second LVD ST336607LC DC CURRENT POWER vs THROUGHPUT Single Ended Random 8 Block Reads 0 000 0 200 0 400 0 600 0 800 1 000 1 200 1 400 0 0 50 0 1 00 0 1 50 0 200 0 ...

Page 39: ...eded to achieve these temper atures Continual or sustained operation at case temperatures above these values may degrade MTBF The maximum allowable continuous or sustained HDA case temperature for the rated MTBF is 122 F 50 C To confirm that the required cooling for the electronics and HDA is provided place the drive in its final mechanical configuration perform random write read operations After ...

Page 40: ...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 c Non operating The limits of non operating shock shall apply to all conditions of handling and transportation This includes both isolated drives and integrated drives The drive subjected to nonrepetitive shock not exce...

Page 41: ...Cheetah 10K 6 SCSI Product Manual Rev D 31 Figure 15 Recommended mounting Z Y X Z Y X ...

Page 42: ...perating abnormal translational random flat profile 10 400 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...

Page 43: ...grams J H L B A S K 1 M C R F 1 D E P Mounting holes are 6 32 UNC 2B three on each side and four on the bottom Max screw penetration into side of drive is 0 15 in 3 81 mm Max screw tightening torque is 6 0 in lb 3 32 nm with minimum full thread engagement of 0 12 in 3 05 mm Notes 1 Inches A B C D E F H J K L M P R S T U V 26 10 147 00 101 60 95 25 3 18 44 45 28 50 101 60 6 35 41 60 4 60 41 28 46 1...

Page 44: ... 6 0 in lb 3 32 nm with minimum full thread engagement of 0 12 in 3 05 mm Notes 1 Inches A B C D E F H J K L M N P R S T U 26 10 147 00 101 60 95 25 3 18 44 45 28 50 101 60 6 35 41 60 4 60 1 20 41 28 62 71 7 00 0 38 0 38 1 028 5 787 4 000 3 750 125 1 750 1 122 4 000 250 1 638 181 040 1 625 2 469 276 015 015 max max 010 010 010 010 020 010 010 010 020 max 020 020 040 max max max max 25 25 25 25 50 ...

Page 45: ... are required in video applications For addi tional information on this refer to the Error Recovery Page table in the SCSI Interface Product 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 s...

Page 46: ...he recovery time limit Note A recovery time limit of 0 will use the drive s default value of FF FF Minimum recovery time limit is achieved by setting the Recovery Time Limit field to 00 01 7 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 ...

Page 47: ...ion 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 remove the manufacturer s installed labels from the dr...

Page 48: ... cover 11 9 7 5 3 1 Drive Activity LED 4 6 Dashed area is optional host circuitry external to the drive connected to host supplied optional usage plug Do not connect anything to pins 13 20 5V Host Alternate Usage Plug Reserved Pins 6 8 4 2 4 A L E D R E S 3 SCSI ID 1 SCSI ID 2 SCSI ID 3 SCSI ID 4 SCSI ID 5 SCSI ID 6 SCSI ID 7 SCSI ID 8 SCSI ID 9 SCSI ID 10 SCSI ID 11 SCSI ID 12 SCSI ID 13 SCSI ID ...

Page 49: ... Ground 4 Host Alternate Usage Plug Pins 1 3 5 and 7 are optional connections to switching circuits in host equipment to establish drive ID Remote Switches For ID selection use jumpers as shown or connect a cable for remote switching as shown below Dashed area is optional host circuitry external to the drive connected to host supplied optional usage plug 4 Reserved Pins 2 4 6 and 8 are normally no...

Page 50: ...re also on 80 pin J1 I O connector See tables 17 and 18 note 9 3 Voltage supplied by the drive 4 Dashed area is optional host circuitry external to the drive connected to host supplied optional usage plug 5 Do not connect anything to J5 pins 9 11 12 or J6 pins 13 20 6 Connect an external Drive Activity LED to J6 pins 11 and 12 see Figure 18 or to J5 pin 8 see Figure 19 and the drives 5V power sour...

Page 51: ...d drive 1 starts after 12 second delay drive 2 starts after 24 second delay etc On On Drive spindle starts when Start Unit command received from host Delayed start feature is overridden and does not apply when ME jumper is installed WP On Entire drive is write protected Off Drive is not write protected Default is WP jumper not installed PD On Parity checking and parity error reporting by the drive...

Page 52: ...uired to keep temperatures at or below the temperatures specified in Section 6 4 1 in which case the drive should be oriented or air flow directed so that the least amount of air flow resistance is created while providing air flow to the electronics and HDA Also the shortest possible path between the air inlet and exit should be chosen to minimize the travel length of air heated by the drive and o...

Page 53: ...h to 5 25 inch adapter frame verify with Seagate Tech nology that the drive can meet the shock and vibration specifications given herein while mounted in such an adapter frame Adapter frames that are available may not have a mechanical structure capa ble of mounting the drive so that it can meet the shock and vibration specifications listed in this man ual 8 5 Grounding Signal ground PCBA and HDA ...

Page 54: ...44 Cheetah 10K 6 SCSI Product Manual Rev D ...

Page 55: ...tah 10K 6 SCSI family drives Notes 1 Extended messages see the SCSI Interface Product Manual 2 Supports all options except qas_req and iu_req Table 5 SCSI messages supported by Cheetah 10K 6 SCSI family drives Message name Message code Supported Abort 06h Y Abort tag 0Dh Y Bus device reset 0Ch Y Clear ACA 16h N Clear queue 0Eh Y Command complete 00h Y Continue I O process 12h N Disconnect 04h Y Ex...

Page 56: ... Code page C1h Y Device Behavior page C3h Y Firmware Numbers page C0h Y Implemented Operating Def page 81h Y Jumper Settings page C2h Y Supported Vital Product Data page 00h Y Unit Serial Number page 80h Y Lock unlock cache 36h N Log Select 4Ch Y PCR bit Y DU bit N DS bit Y TSD bit Y ETC bit N TMC bit N LP bit N Log Sense 4Dh Y Application Client Log page 0Fh Y Buffer Over run Under run page 01h N...

Page 57: ...s as Mode Sense 1Ah 5Ah Y Prefetch 34h N Read 08h Y Read Buffer modes 0 2 3 Ah and Bh supported 3Ch Y Read Capacity 25h Y Read Defect Data 10 37h Y Read Defect Data 12 B7h Y Read Extended 28h Y DPO bit supported Y FUA bit supported Y Read Long 3Eh Y Reassign Blocks 07h Y Receive Diagnostic Results 1Ch Y Supported Diagnostics pages 00h Y Translate page 40h Y Release 17h Y Release 10 57h Y Request S...

Page 58: ...Supported Diagnostics pages 00h Y Translate page 40h Y Set Limits 33h N Start Unit Stop Unit spindle ceases rotating 1Bh Y Synchronize Cache 35h Y Test Unit Ready 00h Y Verify 2Fh Y BYTCHK bit Y Write 0Ah Y Write and Verify 2Eh Y DPO bit Y Write Buffer modes 0 2 supported 3Bh Y Firmware Download option modes 5 7 Ah and Bh supported 3 Y Write Extended 2Ah Y DPO bit Y FUA bit Y Write Long 3Fh Y Writ...

Page 59: ...or the values of bytes 18 through 26 of you particular model ST3146807LW 33 31 34 36 38 30 37 4C 57 ST3146807LC 33 31 34 36 38 30 37 4C 43 ST373307LW 33 37 33 33 30 37 4C 57 20 ST373307LC 33 37 33 33 30 37 4C 43 20 ST336607LW 33 33 36 36 30 37 4C 57 20 ST336607LC 33 33 36 36 30 37 4C 43 20 4 Copyright Year changes with actual year 9 3 1 Inquiry Vital Product data Instead of the standard Inquiry da...

Page 60: ...ictates 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 8 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 c...

Page 61: ... 00 00 00 02 CHG 82 0e ff ff 00 00 00 00 00 00 00 00 87 00 00 00 03 DEF 83 16 55 38 00 00 00 28 00 00 02 d1 02 00 00 01 00 66 00 66 40 00 00 00 03 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 04 DEF 84 16 00 c2 bf 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 27 31 00 00 04 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 07 DEF 87 0a 00 0b ...

Page 62: ...00 00 00 00 04 DEF 84 16 00 c2 bf 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 27 31 00 00 04 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 07 DEF 87 0a 00 0b ff 00 00 00 00 00 ff ff 07 CHG 87 0a 0f ff 00 00 00 00 00 00 ff ff 08 DEF 88 12 14 00 ff ff 00 00 ff ff ff ff 00 20 00 00 00 00 00 00 08 CHG 88 12 b5 00 00 00 ff ff ff ff 00 00 a0 ff 00 00 00 00 00 00 0A DEF 8a ...

Page 63: ... 00 00 00 00 04 DEF 84 16 00 c2 bf 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 27 31 00 00 04 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 07 DEF 87 0a 00 0b ff 00 00 00 00 00 ff ff 07 CHG 87 0a 0f ff 00 00 00 00 00 00 ff ff 08 DEF 88 12 14 00 ff ff 00 00 ff ff ff ff 00 20 00 00 00 00 00 00 08 CHG 88 12 b5 00 00 00 ff ff ff ff 00 00 a0 ff 00 00 00 00 00 00 0A DEF 8a...

Page 64: ...System Y Asynchronous Data Transfer N Asynchronous Event Notification Y Attention Condition N Auto Contingent Allegiance Condition Y Contingent Allegiance Condition Y Deferred Error Handling Y Disconnect Reconnect N High voltage differential HVD interface available Y Low voltage differential LVD interface available Y Parameter Rounding controlled by the Round bit in Mode Select page 0 Y Queue tagg...

Page 65: ... ST DATA transfer periods 9 5 2 REQ ACK offset Cheetah 10K 6 SCSI family drives support REQ ACK offset values from 7 to 63 3Fh Offsets of 1 through 6 are negotiated to 0 asynchronous transfer 9 6 Physical interface This section describes the connectors cables signals terminators and bus timing of the DC and SCSI I O interface See Section 9 8 and Section 9 9 for additional terminator information Fi...

Page 66: ... 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 LC model drives receive power through the 80 pin I O connector See Tables 17 and 18 Type of cable Connector Contacts 20 14 AWG 14 AWG MP 1 480424 0 AMP 60619 4 Loose Piece AMP 61117 4 Strip ...

Page 67: ... J1 SCSI I O connector Figure 23 LC model drive physical interface 80 pin J1 SCSI I O connector J5 Pin 1A 68 Pin SCSI I O Connector Pin 1P J1 DC Power J6 J1 Pin 1 J1 DC Power Pin 1P 2P 3P 4P Power 12V 12V ret 5V ret 5V J1 Pin 1 1P 2P 3P 4P J5 Pin 1A PCB J2 J6 80 pin SCSI I O Connector Pin 1 J2 ...

Page 68: ...s daisy chain of SCSI devices must be terminated at both ends with the proper impedance in order to operate correctly Do not terminate intermediate SCSI devices In some cases the SCSI devices at each end have onboard termination circuits that can be enabled by installation of a jumper plug TE on the device These ter mination circuits receive power from either a source internal to the device or fro...

Page 69: ...ust 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 connec...

Page 70: ... conductors could not be controlled and therefore could become too long for safe power transmission to the drive Daisy chain 80 conductor cables should especially not be allowed since the power carrying conductors on the 80 conductor interface were not intended to sup port a series of drives To insure that both drive connector and host equipment mating connector mate properly both drive connector ...

Page 71: ...cluding host adapter initiator The cable length restriction limits the total number of devices allowed 5 SCSI ID7 has highest arbitration priority then ID15 to ID8 ID 8 has the very lowest priority 6 Last drive on the daisy chain 7 Open end type 68 pin connector used If end device use external terminator and closed end type 68 pin connector Figure 24 SCSI daisy chain interface cabling for LW drive...

Page 72: ...15 8 00 3 650 92 71 840 005 21 34 315 010 8 00 001 002dia 083 2 1 Trifurcated Pins 4 places 085 2 16 x 45 chamfer typ 20 5 08 typ 60 15 24 100 2 54 Pos 1 Pos 2 1 2 3 4 1 816 46 13 Position 1 Pos 68 Pos 35 1 650 41 91 980 24 89 1 368 37 74 767 19 48 050 1 27 218 5 54 Pos 1 022 050 020 047 0787 200 1 650 3937 600 346 3 650 005 270 155 ...

Page 73: ...76 12 70 500 2 15 0 10 2 places 57 87 2 278 Y 0 15 M Y M 0 15 M Y M 0 0 15 000 006 62 15 2 447 0 15 005 Housing X X Contact 0 3 012 M Y M 1 27 05 Typ C L of Datum Y C L of Datum Y 0 50 020 Pin 1 Pin 40 Pin 41 Pin 80 Pin 1 Front View End View Top View Back View Insert mating I O connector Grounding Pins Grounding Pins ...

Page 74: ...9 10 39 DBP1 GND 6 11 12 40 DB0 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 Reserved 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 2...

Page 75: ... 11 12 40 DB0 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 ...

Page 76: ...0 6 46 DIFFSNS 8 DB11 7 47 GND DB10 8 48 GND DB9 9 49 GND DB8 10 50 GND I O 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 DB0 28 68 GND DP1 29 69 GND DB15 30 70 GND DB14 31 71 GND DB13 32 72 GND DB12 33 73 GND 5 ...

Page 77: ... DIFFSNS 8 DB11 7 47 DB11 DB10 8 48 DB10 DB9 9 49 DB9 DB8 10 50 DB8 I O 11 51 I O 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 DBP0 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 DB0 28 68 DB0 DBP1 29 69 DP1 DB15 30 70 DB15 DB14 31 71 DB14 DB13 32 72 DB13 DB12 33 73 DB12 ...

Page 78: ... 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 9 7 Electrical description Cheetah 10K 6 SCSI drives are multimode devices That is their I O circuits can operate as either single ended or low voltage differential dri...

Page 79: ...ng single ended I O driver and receiver circuits depends on several factors Table 19 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 A stub length of no more than 0 1 meter 0 33 ft is allowed off the mainline in...

Page 80: ...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 Table 20 Example shielded round twisted pair cables into a multi drive backplane Cable description Differential impedance nominal Single ended impedance nominal Single ended capacitance maximum Time delay nominal ConductorDC res...

Page 81: ...the SCSI bus or have the host adaptor or other device supply terminator power to the external terminator See Section 8 1 for illustrations that show how to place jumpers for 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 ...

Page 82: ...14 4 5 7 1 39 µs Reselect Identify MSG to Status T15 4 5 8 Command Dependent Reselect Identify MSG to Data media T16 4 5 11 Command Dependent Data to Status T17 4 5 15 Command Dependent Status to Command Complete MSG T18 4 5 5 8 15 0 98 µs Command Complete MSG to Bus Free T19 4 5 5 8 15 0 51 µs Data to Save Data Pointer MSG T20 4 5 14 4 00 µs Save Data Pointer MSG to Disconnect MSG T21 4 5 14 0 79...

Page 83: ...2 µs MSG IN Byte Transfer T32 4 5 5 7 8 14 15 0 04 µs MSG OUT Byte Transfer T33 4 5 2 0 04 µs STATUS Byte Transfer T34 4 5 5 8 15 0 04 µs Synchronous Data Transfer Characteristics Request Signal Transfer Period 3 various 800 ns max Table 23 Drive 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 wh...

Page 84: ...74 Cheetah 10K 6 SCSI Product Manual Rev D ...

Page 85: ...r Marketplace is the storage industry s first collaborative e commerce marketplace offering resellers the fastest most efficient online purchasing process for Seagate storage solutions The Reseller Marketplace at reseller seagate com an exclusive service for US resellers participating in the Seagate Partner Program SPP is designed to streamline the purchasing process of Seagate solutions and provi...

Page 86: ...and other direct customers should contact their Seagate service center representative for warranty related issues Resellers or end users of drive products should contact their place of purchase or one of the Seagate warranty service cen ters for assistance Have your drive s ST model number and serial number available Authorized Service Centers In some countries outside the US you can contact an Au...

Page 87: ...ce in Africa and the Middle East dial our European call cen ter at 31 20 316 7222 from 8 30 A M to 5 00 P M Central Europe time Monday through Friday or send a FAX to 31 20 653 3513 The European call center is located in Amsterdam The Netherlands Asia Pacific Support Services For Asia Pacific presales and technical support dial the toll free number for your specific country The Asia Pacific toll f...

Page 88: ...78 Cheetah 10K 6 SCSI Product Manual Rev D ...

Page 89: ...us device reset message 50 bytes per sector 48 bytes surface 8 bytes track 8 C cabinet cooling 42 cable 56 cache 9 10 11 cache buffer 6 cache miss 10 cache mode 9 cache operation 9 cache operation hit 11 cache segment 10 caching write data 10 Canadian Department of Communications 3 capacities 7 capacity drive programmable 7 case temperature 29 CE Marking 3 changeable bit 51 changeable value 50 che...

Page 90: ...iming 72 drive select header 55 drive spindle 41 drive transfer 10 drive volume 37 drive warranty 14 dynamic spindle brake 6 E ECC 13 ECC correction capability 6 electrical characteristics 55 68 electromagnetic compatibility 3 electromagnetic interference EMI 13 electromagnetic susceptibility 32 embedded servo 6 EMC compliance 3 EMI requirements 3 environment 42 environmental control 32 environmen...

Page 91: ...urrent 21 ME jumper 41 mean time between failure See MTBF media 6 50 media defect 13 media defect induced error 13 medium error 14 message protocol 55 message protocol system 36 messages SCSI interface 45 miscellaneous features 54 mode page 01 50 mode page 08h 9 mode parameter 50 page 08h 11 mode select command 9 50 mode select page 08h 11 mode sense command 50 51 mode sense command page 08h 10 mo...

Page 92: ...l electronics 5 product data page 49 programmable drive capacity 7 R radio interference regulations 3 read 10 read command 10 11 read data 10 read error 13 read error rate 13 35 read operation 10 read retry count 35 read write head 8 ready 50 receive diagnostic results 36 receiver circuits 69 recommended mounting 31 recoverable seek error 13 reference documents 4 regulation 21 relative humidity 29...

Page 93: ...nchronous data transfer operation 73 synchronous data transfer period 55 synchronous transfer period 73 system chassis 43 system recovery procedures 13 T technical support services 75 temperature 9 16 29 42 ambient 29 case 29 gradient 29 non operating 29 regulation 3 See also cooling temperature sensor 17 termination 22 terminator enable jumper TE 61 terminator power 71 terminator requirements 37 ...

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Page 96: ...Seagate Technology LLC 920 Disc Drive Scotts Valley California 95066 4544 USA Publication Number 100195486 Rev D Printed in USA ...

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