Seagate Cheetah 73 ST173404LC Product Manual Download Page 1

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Cheetah 73 Family:

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ST173404LW/LWV/LC/LCV

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Product Manual, Volume 1

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Summary of Contents for Cheetah 73 ST173404LC

Page 1: ...Cheetah 73 Family ST173404LW LWV LC LCV Product Manual Volume 1...

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Page 3: ...Cheetah 73 Family ST173404LW LC Product Manual Volume 1...

Page 4: ...ONE SeaBOARD and SeaTDD are either trademarks or registered trade marks of Seagate Technology LLC or one of its subsidiaries All other trademarks or registered trade marks are the property of their re...

Page 5: ...nual part 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 09 22 1999 L Newman G...

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Page 7: ...xecution time minutes 9 4 2 3 Generalized performance characteristics 9 4 3 Start stop time 10 4 4 Prefetch multi segmented cache control 10 4 5 Cache operation 10 4 5 1 Caching write data 11 4 5 2 Pr...

Page 8: ...ng 41 8 5 Grounding 41 9 0 Interface requirements 43 9 1 General description 43 9 2 SCSI interface messages supported 43 9 3 SCSI interface commands supported 44 9 3 1 Inquiry Vital Product data 47 9...

Page 9: ...Recommended mounting 28 Figure 10 ST173404LW mounting configuration dimensions 30 Figure 11 ST173404LC mounting configuration dimensions 31 Figure 12 J6 jumper header 36 Figure 13 J5 jumper header on...

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Page 11: ...erface specifications to the extent described in this manual The SCSI Interface Product Manual part num ber 75789509 describes general SCSI interface characteristics of this and other families of Seag...

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Page 13: ...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...

Page 14: ...ations Seagate P N 75789512 ANSI small computer system interface SCSI document numbers T10 1143D Enhanced SCSI Parallel Interface EPI T10 1236D Primary Commands 2 SPC 2 T10 996D SCSI Block Commands SB...

Page 15: ...ftware 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...

Page 16: ...6 Cheetah 73 Product Manual Rev D Figure 2 Cheetah 73 family drive...

Page 17: ...to the drive Zoned bit recording ZBR Vertical horizontal or top down mounting Dynamic spindle brake 4 096 kbyte data buffer 16 384 kbyte option on LWV and LCV models Hot plug compatibility Section 9 6...

Page 18: ...apacity 3 7 Factory installed accessories OEM Standard drives are shipped with the Cheetah 73 Installation Guide part number 83329479 and the Safety and Regulatory Agency Specifications part number 75...

Page 19: ...60 SCSI In low voltage differential LVD interface mode 5 0 to 80 Mbytes sec 5 0 to 160 Mbytes sec ST173404 Drive capacity 73 4 GByte formatted rounded off values Read write heads 24 Bytes track 215 24...

Page 20: ...ed to command the drive to stop the spindle see 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...

Page 21: ...on is disabled see Section 4 5 2 The number of segments is set dynamically by the drive and cannot be set by the host The size in Kbytes of each segment is not reported by the Mode Sense command page...

Page 22: ...system perfor mance The max prefetch field bytes 8 and 9 limits the amount of prefetch The drive does not use the Prefetch Ceiling field bytes 10 and 11 During a prefetch operation the drive crosses...

Page 23: ...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 medi...

Page 24: ...r disc drive times the total number of disc drives in service Each disc drive shall have accumulated at least nine months of operation Data shall be calculated on a rolling average base for a minimum...

Page 25: ...ons after the dis connection of any device signal contact from the bus see SFF 8046 SCA 2 specification It is the responsibility of the systems integrator to assure that no hazards from temperature en...

Page 26: ...g delay On line only delay Fully enabled delay DEXCPT 0 PERF 1 DEXCPT 0 PERF 0 S M A R T delay times 50 milliseconds 300 milliseconds Reporting control Reporting is controlled in the Informational Exc...

Page 27: ...l be reported regardless of the number of retries required to recover the data The following conditions are considered DST failure conditions Seek error after retries are exhausted Track follow error...

Page 28: ...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...

Page 29: ...drive in a non approved con tainer voids the drive warranty Seagate repair centers may refuse receipt of components improperly packaged or obviously damaged in tran sit Contact your Authorized Seagat...

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Page 31: ...pple noise and transient response 6 Operating condition is defined as random 8 block reads at 184 I Os per second Current and power speci fied at nominal voltages Decreasing 5 volt supply by 5 increas...

Page 32: ...Unit command enable the Enable Remote Motor Start option on the J2 connector 6 2 3 12 V Current profile Figure 3 identifies the drive 12 V current profile The current during the various times is as s...

Page 33: ...ent profile 0 0 4 8 12 16 20 24 28 32 0 0 0 5 1 0 1 5 A Seconds T2 T4 T0 T1 T3 T5 AC Envelope Nominal average DC curve 5 Volt Current SCSI SE during spindle start Typical Amperes 0 0 4 8 12 16 20 24 2...

Page 34: ...6 and 7 Locate the typical I O rate for a drive in your system on the horizontal axis and read the corre sponding 5 volt current 12 volts current and total watts on the vertical axis To caluclate BTUs...

Page 35: ...without impact to specified MTBF Air flow may be needed to achieve these temperatures see Section 8 3 1 Continual or sustained operation at case temperatures above these values may degrade MTBF To co...

Page 36: ...umidity The values below assume that no condensation on the drive occurs a Operating 5 to 95 non condensing relative humidity with a maximum gradient of 10 per hour b Non operating 5 to 95 non condens...

Page 37: ...e 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...

Page 38: ...28 Cheetah 73 Product Manual Rev D Figure 9 Recommended mounting Z Y X Z Y X...

Page 39: ...e 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 dr...

Page 40: ...rams 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...

Page 41: ...ng 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 G H J K L M N P R S T U 42 01 147 00 101 60 92 25 3 18 44 45 41 28 28 50 101 60 6 35 41...

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Page 43: ...limits such as are required in video applications For addi tional information on this refer to the SCSI Interface Product Manual which describes the Mode Select Mode Sense Error Recovery parameters Th...

Page 44: ...overy 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...

Page 45: ...eration 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 documenta...

Page 46: ...ver 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 Altern...

Page 47: ...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...

Page 48: ...lt condition The PCBA on LC models does not have connector J5 The J5 connector signals conform to SFF 8009 Revision 2 0 Unitized Connector for Cabled Drives signal assignments for auxiliary connectors...

Page 49: ...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 writ...

Page 50: ...the temperature measurement guidelines described in Section 6 4 1 Forced air flow may be required to keep temperatures at or below the specified case temperatures of Table 3 in which case the drive sh...

Page 51: ...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 avail...

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Page 53: ...SCSI 3 modes of the Cheetah 73 family drives Notes 1 Extended messages see the SCSI Interface Product Manual Table 5 SCSI messages supported by Cheetah 73 family drives Message name Message code Supp...

Page 54: ...ate code page C1h 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...

Page 55: ...city 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 Suppor...

Page 56: ...h Y Translate page 40h Y Set limits 33h N Start unit stop unit spindle ceases rotating 1Ch 1Bh Y Synchronize cache 35h Y Test unit ready 00h Y Verify 2Fh Y BYTCHK bit Y Write 0Ah Y Write and verify 2E...

Page 57: ...re 4C 57 20 For LWV models bytes 24 25 and 26 are 4C 57 56 For LC models bytes 24 25 and 26 are 4C 43 20 For LCV models bytes 24 25 and 26 are 4C 43 56 5 Copyright Year changes with actual year 9 3 1...

Page 58: ...es 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 0...

Page 59: ...0 FF FF 01 CHG 81 0A FF FF 00 00 00 00 FF 00 FF FF 02 DEF 82 0E 80 80 00 0A 00 00 00 00 00 00 00 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 03 89 00 00 00 06 00 00 01...

Page 60: ...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 Re...

Page 61: ...sical 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 F...

Page 62: ...CSI I O connector Figure 17 ST173404LC 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 12...

Page 63: ...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...

Page 64: ...nsisting of two rows of 34 female pins with adjacent pins 50 mils apart The connector is keyed by means of its shape see Figure 19 9 6 4 2 Mating connectors for LC and LCV model drives The nonshielded...

Page 65: ...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 very lowest 6 Last drive on the...

Page 66: ...8 00 3 650 92 71 840 005 21 34 315 010 8 00 001 002 dia 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...

Page 67: ...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 P...

Page 68: ...e 1 GND 1 35 DB12 GND 2 36 DB13 GND 3 37 DB14 GND 4 38 DB15 GND 5 39 DBP1 GND 6 40 DB0 GND 7 41 DB1 GND 8 42 DB2 GND 9 43 DB3 GND 10 44 DB4 GND 11 45 DB5 GND 12 46 DB6 GND 13 47 DB7 GND 14 48 DBP GND...

Page 69: ...2 36 DB13 DB14 3 37 DB14 DB15 4 38 DB15 DBP1 5 39 DBP1 DB0 6 40 DB0 DB1 7 41 DB1 DB2 8 42 DB2 DB3 9 43 DB3 DB4 10 44 DB4 DB5 11 45 DB5 DB6 12 46 DB6 DB7 13 47 DB7 DBP 14 48 DBP Ground 15 49 Ground DI...

Page 70: ...NC 10 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 GN...

Page 71: ...6 46 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 DB...

Page 72: ...ll other signals should be connected as shown 9 7 Electrical description Cheetah 73 drives are multimode devices That is their I O circuits can operate as either single ended or low voltage differenti...

Page 73: ...030 V Vs 3 6 V signal negation logic 0 Steady state High level output voltage 3 6 V Vs 0 030 V signal assertion logic 1 Differential voltage 0 30 V minimum with common mode voltage ranges 0 700 V Vcm...

Page 74: ...ctions cables of different impedances should not be used in the same bus Implementations may require tradeoffs in shielding effectiveness cable length the number of loads transfer rates and cost to ac...

Page 75: ...ent 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 Free T...

Page 76: ...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 Signal Transfer Period 3 various 800 ns max Table 19 Drive act...

Page 77: ...t and easy comparison shop ping and seamless integration with key distributors for a one stop shopping experience For support questions and comments http reseller seagate com benefits T1 html or 1 877...

Page 78: ...Other customers should contact their place of purchase Authorized Service Centers If you live outside the US you can contact an Authorized Service Center for service USA Canada Latin America Support...

Page 79: ...r presales technical support warranty service and FAX services in Africa and the Middle East dial our European call center at 31 20 316 7222 from 8 30 A M to 5 00 P M European central time Monday thro...

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Page 81: ...11 bulkhead connector 53 bus device reset message 48 bus fairness 7 bytes per sector 46 bytes surface 9 bytes track 9 C cabinet cooling 40 cable 51 cache 10 11 12 cache buffer 7 cache miss 11 cache mo...

Page 82: ...ounting 30 41 constraints 13 drive orientation 40 drive power 35 drive primary defects list 33 drive SCSI timing 65 drive select header 51 Drive Self Test 7 drive spindle 39 drive transfer 11 drive vo...

Page 83: ...vers 7 LVD 62 63 LVD interface receiver circuits 63 LVD output signals 63 M magnetoresistive heads 5 mating connector 51 54 mating flat cable connector 54 maximum current requirements 22 maximum opera...

Page 84: ...11 12 prefetch read look ahead 10 12 prefetch ceiling field 12 prefetch data 12 prefetch field 12 prefetch hit 12 prefetch mode 10 prefetch of contiguous blocks 12 prefetch operation 10 12 prefetch se...

Page 85: ...start stop time 10 status 34 stop spindle 10 stop time 10 storage capacity 33 straight in connector 55 strict bit in Mode page 00h 11 supply voltage 21 support services 67 synchronous data transfer 51...

Page 86: ...76 Cheetah 73 Product Manual Rev D write retry count 33 Z zoned bit recording ZBR 7...

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Page 88: ...Seagate Technology LLC 920 Disc Drive Scotts Valley California 95066 4544 USA Publication Number 83329478 Rev D Printed in USA...

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