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Cheetah 15K.3 SCSI Product Manual, Rev. G

v

Contents

1.0

Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.0

Applicable standards and reference documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1

Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1.1

Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1.2

Electromagnetic susceptibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2

Electromagnetic compliance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.3

Reference documents  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.0

General description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1

Standard features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.2

Media characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.3

Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.4

Reliability  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.5

Unformatted and formatted capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.6

Programmable drive capacity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.7

Factory installed accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.8

Options (factory installed). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.9

Accessories (user installed) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.0

Performance characteristics  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.1

Internal drive characteristics (transparent to user) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.2

SCSI performance characteristics (visible to user)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2.1

Access time  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.2.2

Format command execution time (minutes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.1.4

Seek errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.2

Reliability and service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.2.1

Mean time between failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.2.2

Preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.2.3

Service life  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.2.4

Service philosophy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.2.5

Service tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.2.6

Hot plugging Cheetah 15K.3 SCSI disc drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.2.7

S.M.A.R.T.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.2.8

Thermal monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.2.9

Drive Self Test (DST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.2.10

Product warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.0

Physical/electrical specifications  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.1

AC power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.2

DC power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.2.1

Conducted noise immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.2.2

Power sequencing  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.2.3

Current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.3

Power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Содержание 15K.3 - Cheetah - Hard Drive

Страница 1: ...Cheetah 15K 3 SCSI Disc Drive ST373453LW LC ST336753LW LC ST318453LW LC Product Manual Volume 1...

Страница 2: ......

Страница 3: ...Cheetah 15K 3 SCSI Disc Drive ST373453LW LC ST336753LW LC ST318453LW LC Product Manual Volume 1...

Страница 4: ...echnology LLC Cheetah SeaFAX SeaFONE SeaBOARD and SeaTDD are registered trademarks or trade marks of Seagate Technology LLC Other product names are registered trademarks or trademarks of their owners...

Страница 5: ...ace information order the Volume 2 Interface Manual part number 75789509 Revision Date Writer Engineer Sheets Affected Rev A 07 08 2002 K Schweiss B Hohn All Rev B 07 09 2002 K Schweiss B Hohn 1 81 Re...

Страница 6: ......

Страница 7: ...minutes 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...

Страница 8: ...ve 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 d...

Страница 9: ...318453 DC current and power vs IOPS SE 28 Figure 13 ST318453 DC current and power vs IOPS LVD 28 Figure 14 Locations of the HDA temperature check point 29 Figure 15 Recommended mounting 31 Figure 16 L...

Страница 10: ......

Страница 11: ...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 S...

Страница 12: ...2 Cheetah 15K 3 SCSI Product Manual Rev G...

Страница 13: ...tions 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 enclosur...

Страница 14: ...m ber as a Marking it complies with Chinese National Standard CNS 13438 and meets the Electromagnetic Compatibility EMC Framework requirements of the Taiwanese Bureau of Standards Metrology and Inspec...

Страница 15: ...e 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 ad...

Страница 16: ...Self diagnostics performed 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 Sec...

Страница 17: ...Factory installed accessories OEM Standard drives are shipped with the Cheetah 15K 3 Installation Guide part number 100148125 and the Safety and Regulatory Agency Specifications part number 75789512...

Страница 18: ...Mbytes sec ST373453 ST336753 ST318453 Drive capacity 73 4 36 7 18 4 GByte formatted rounded off values Read write heads 8 4 2 Bytes track 377 770 377 770 377 770 Bytes average rounded off values Bytes...

Страница 19: ...erations 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...

Страница 20: ...ound 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...

Страница 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 dec...

Страница 22: ...12 Cheetah 15K 3 SCSI Product Manual Rev G...

Страница 23: ...rmal drive or system 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 er...

Страница 24: ...e shall have accumulated at least nine months of operation Data shall be calculated on a rolling average base for a minimum period of six months MTBF is based on the following assumptions 8 760 power...

Страница 25: ...o 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 n...

Страница 26: ...terval 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...

Страница 27: ...rature 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 When the first temperature trip point is...

Страница 28: ...e short test or 010b for the extended test in bytes 1 bits 5 6 and 7 Refer to the Seagate SCSI Interface Manual part number 75789509 for additional information about invoking DST 5 2 9 2 3 Short and e...

Страница 29: ...de 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...

Страница 30: ...20 Cheetah 15K 3 SCSI Product Manual Rev G...

Страница 31: ...tor 3 See 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 ST373453 ST336753 SE mode LVD m...

Страница 32: ...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 operatio...

Страница 33: ...Cheetah 15K 3 SCSI Product Manual Rev G 23 Figure 2 Typical ST373453 drive 12 V current profile Figure 3 Typical ST373453 drive 5 V current profile...

Страница 34: ...24 Cheetah 15K 3 SCSI Product Manual Rev G Figure 4 Typical ST336753 drive 12 V current profile Figure 5 Typical ST336753 drive 5 V current profile...

Страница 35: ...Cheetah 15K 3 SCSI Product Manual Rev G 25 Figure 6 Typical ST318453 drive 12 V current profile Figure 7 Typical ST318453 drive 5 V current profile...

Страница 36: ...lt current 12 volt current and total watts on the vertical axis To calculate BTUs per hour multiply watts by 3 4123 Figure 8 ST373453 DC current and power vs IOPS SE Figure 9 ST373453 DC current and p...

Страница 37: ...rrent 12 volt current and total watts on the vertical axis To calculate BTUs per hour multiply watts by 3 4123 Figure 10 ST336753 DC current and power vs IOPS SE Figure 11 ST336753 DC current and powe...

Страница 38: ...current 12 volt current and total watts on the vertical axis To calculate BTUs per hour multiply watts by 3 4123 Figure 12 ST318453 DC current and power vs IOPS SE Figure 13 ST318453 DC current and po...

Страница 39: ...to achieve these tempera tures Continual or sustained operation at case temperatures above these values may degrade MTBF The maximum allowable continuous or sustained HDA case temperature for the rate...

Страница 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...

Страница 41: ...Cheetah 15K 3 SCSI Product Manual Rev G 31 Figure 15 Recommended mounting Z Y X Z Y X...

Страница 42: ...erating 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 b...

Страница 43: ...rams 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...

Страница 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 6...

Страница 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 Reco...

Страница 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 sy...

Страница 47: ...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 documen...

Страница 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 Alt...

Страница 49: ...V 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 co...

Страница 50: ...y connectors 2 These signals are also on the 80 pin J1 I O connector See Tables 17 and 18 3 Voltage supplied by the drive 4 Dashed area is optional host circuitry external to the drive connected to ho...

Страница 51: ...power is connected a drive assigned SCSI ID 1 starts after 12 second delay and a drive assigned SCSI ID 2 starts after 24 second delay etc On On Drive spindle starts when the Start Unit command is re...

Страница 52: ...ired 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 cre...

Страница 53: ...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 a...

Страница 54: ...44 Cheetah 15K 3 SCSI Product Manual Rev G...

Страница 55: ...the Cheetah 15K 3 SCSI family drives Table 5 SCSI messages supported by Cheetah 15K 3 SCSI family drives Message name Message code Supported by Cheetah 15K 3 Abort 06h Y Abort tag 0Dh Y Bus device res...

Страница 56: ...t supported Y IMMED bit supported Y VS vendor specific N Inquiry 12h Y Date Code page C1h Y Device Behavior page C3h Y Firmware Numbers page C0h Y Implemented Operating Def page 81h Y Jumper Settings...

Страница 57: ...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 25...

Страница 58: ...xtended 2Bh Y Send Diagnostics 1Dh Y Supported Diagnostics pages 00h Y Translate page 40h Y Set Limits 33h N Start Unit Stop Unit spindle ceases rotating 1Bh Y Synchronize Cache 35h Y Test Unit Ready...

Страница 59: ...s below for the values of bytes 18 through 26 of you particular model ST373453LW 33 37 33 34 35 33 4C 57 ST373453LC 33 37 33 34 35 33 4C 43 ST336753LW 33 33 36 37 35 33 4C 57 ST336753LC 33 33 36 37 35...

Страница 60: ...ctates 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 pa...

Страница 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 48 a8 00 00 00 28 00 00 02 43 02 00 00 01 00 78 00 60 40 00 00 00 03 CHG 83 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00...

Страница 62: ...0 00 00 00 04 DEF 84 16 00 7a 4e 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3a a7 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...

Страница 63: ...00 00 00 00 04 DEF 84 16 00 7a 4e 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3a a7 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...

Страница 64: ...ing 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 Dis...

Страница 65: ...bes 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 Figures 22 and 23 show the locations...

Страница 66: ...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...

Страница 67: ...lso called This 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 de...

Страница 68: ...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 20 Fast 40...

Страница 69: ...er carrying 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 p...

Страница 70: ...luding 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 L...

Страница 71: ...5 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...

Страница 72: ...6 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...

Страница 73: ...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...

Страница 74: ...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 DIFF...

Страница 75: ...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...

Страница 76: ...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...

Страница 77: ...ounded 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 groun...

Страница 78: ...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 documen...

Страница 79: ...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 Table...

Страница 80: ...he 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 drive...

Страница 81: ...pendent 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 s Command Complete MSG to Bus Fr...

Страница 82: ...4 5 13 0 12 s MSG IN Byte Transfer T32 4 5 5 7 8 14 15 0 04 s MSG OUT Byte Transfer T33 4 5 2 0 04 s STATUS Byte Transfer T34 4 5 5 8 15 0 04 s Synchronous Data Transfer Characteristics Request Signa...

Страница 83: ...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 Mar...

Страница 84: ...nd 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...

Страница 85: ...e 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 c...

Страница 86: ...76 Cheetah 15K 3 SCSI Product Manual Rev G...

Страница 87: ...bus device reset message 50 bytes per sector 48 bytes surface 8 bytes track 8 C cabinet cooling 42 cable 55 cache 9 10 11 cache buffer 6 cache miss 10 cache mode 9 cache operation 9 cache operation hi...

Страница 88: ...ect header 55 drive transfer 10 drive volume 37 drive warranty 14 dynamic spindle brake 6 E ECC 13 ECC correction capability 6 electrical characteristics 55 67 electromagnetic compatibility 3 electrom...

Страница 89: ...nt 21 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 miscellaneou...

Страница 90: ...ead 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 68 recommend...

Страница 91: ...od 55 synchronous transfer period 72 system chassis 43 system recovery procedures 13 T technical support services 73 temperature 9 16 29 42 ambient 29 case 29 gradient 29 non operating 29 regulation 3...

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Страница 94: ...Seagate Technology LLC 920 Disc Drive Scotts Valley California 95066 4544 USA Publication Number 100148123 Rev G Printed in USA...

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