Seagate Elite 47 ST446452W Product Manual Download Page 74

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Summary of Contents for Elite 47 ST446452W

Page 1: ...Elite 47 Disc Drive ST446452W Product Manual Volume 1...

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Page 3: ...Elite 47 Disc Drive ST446452W Product Manual Volume 1...

Page 4: ...nc Elite SeaFAX SeaFONE SeaNET SeaTDD and SeaBOARD are either trademarks or registered trademarks of Seagate Technology Inc or one of its subsidiaries All other trade marks or registered trademarks ar...

Page 5: ...the SCSI interface information in the volume 2 SCSI Interface Product Manual part number 77738479 If you need SCSI interface information order the volume 2 SCSI Interface Product Manual part number 77...

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Page 7: ...e sectors 9 4 2 3 General performance characteristics 9 4 3 Start stop time 11 4 4 Prefetch multi segmented cache control 11 4 5 Cache operation 11 4 5 1 Caching write data 12 4 5 2 Prefetch operation...

Page 8: ...description 37 9 2 SCSI interface messages supported 37 9 3 SCSI interface commands supported 38 9 3 1 Inquiry data 41 9 3 2 Mode Sense data 41 9 4 SCSI bus conditions and miscellaneous features suppo...

Page 9: ...Table 2 24 Figure 5 Recommended mounting 26 Figure 6 Mounting configuration dimensions 28 Figure 7 Option select jumper connectors 32 Figure 8 J4A connections for Activity Fault and Ready LED indicato...

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Page 11: ...Fast 20 or Ultra SCSI interface specifications to the extent described in this manual The SCSI Interface Product Manual part number 77738479 describes general SCSI interface characteristics of this a...

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Page 13: ...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...

Page 14: ...2 3 Reference documents Elite 47 Installation Guide Seagate P N 83329290 SCSI Interface Product Manual Volume 2 Seagate P N 77738479 ANSI small computer system interface SCSI document numbers X3 131 1...

Page 15: ...ports 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 log...

Page 16: ...es per sector Programmable sector reallocation scheme Flawed sector reallocation at format time Programmable auto write and read reallocation Reallocation of defects on command post format Reed Solomo...

Page 17: ...nt may modify the data block size before issuing a format command and obtain different formatted capacities than those listed User available capacity depends on spare reallocation scheme selected See...

Page 18: ...sizes Single unit shipping pack The drive normally ships in bulk packaging to provide maximum protection against transit damage Units shipped individually require additional protection as provided by...

Page 19: ...nsfer rate 10 0 Mbytes sec 7 Synchronous transfer rate for SCSI Fast 20 Ultra SCSI 16 bit data bus 5 0 to 40 Mbytes sec All notes for Sections 4 2 are listed at end of Section 4 2 3 ST446452 Drive cap...

Page 20: ...Sections 4 2 1 Execution time is 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 Ma...

Page 21: ...es can be used as a cache The cache can be divided into logical segments Mode Select page 08h byte 13 from which data is read and to which data is written The drive keeps track of the logical block ad...

Page 22: ...gments to calculate the segment size The default is three segments 4 5 1 Caching write data When the WCE Write Cache Enable bit is enabled the drive uses a drive buffer storage area where the data to...

Page 23: ...nder the control of ARLA Adaptive Read Look Ahead If the host uses software interleave ARLA enables prefetch of contiguous blocks from the disk when it senses that a prefetch hit will likely occur eve...

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Page 25: ...capable of being detected from the error or fault status provided through the drive or SCSI interface or is not capable of being recovered by normal drive or system recovery procedures without operat...

Page 26: ...lowing equation MTBF is based on the following assumptions 8 760 power on hours per year 250 average on off cycles per year Read seek write operation 20 of POH Operations at nominal voltages Systems p...

Page 27: ...perly equipped and staffed service and repair facility Troubleshooting and repair of PCBAs in the field is not recommended because of the extensive diagnostic equipment required for effective servicin...

Page 28: ...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...

Page 29: ...o 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 customer s expense to Seagate s designated fa...

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Page 31: ...t profile in Figure 3 4 This condition occurs when the Motor Start Option is enabled and the drive has not yet received a Start Motor command 5 See Section 6 2 1 Conducted Noise Immunity Specified vol...

Page 32: ...advertent writing during power up and down Daisy chain operation requires that power be maintained on the terminated device to ensure proper termination of the peripheral I O cables To automatically d...

Page 33: ...he MTBF specification for the drive is based on operating at an ambient temperature of 86 F 30 C Occasional excursions to drive ambient temperatures of 122 F 50 C or 41 F 5 C may occur without impact...

Page 34: ...air may be required to ensure that these values are not exceeded 3 Measure HDA temperature at point labeled HDA Temp Checkpoint on Figure 4 4 PCB mounted integrated circuit case Figure 4 Location of...

Page 35: ...th the restrictions of Section 8 4 Orientation of the side nearest the LED may be up or down 6 4 4 1 Shock a Operating normal The drive as installed for normal operation will operate error free while...

Page 36: ...ize Packaged Product Weight Drop Height 600 cu in 9 800 cu cm Any 60 in 1 524 mm 600 1 800 cu in 9 800 19 700 cu cm 0 20 lb 0 9 1 kg 48 in 1 219 mm 1 800 cu in 19 700 cu cm 0 20 lb 0 9 1 kg 42 in 1 06...

Page 37: ...on This includes both isolated drives and integrated drives The drive does not incur physical damage or degraded performance as a result of continuous vibration not exceeding 5 22 Hz 0 040 inches 1 02...

Page 38: ...9 25 21 84 139 70 2 17 79 24 74 93 82 30 A B C D E F G H J K L 0 010 0 010 0 010 0 020 0 010 0 005 0 010 0 010 0 010 0 020 0 020 25 25 25 50 25 13 25 25 25 50 50 Mounting holes two on each side 6 32 U...

Page 39: ...f 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 Fo...

Page 40: ...of 456 msec recovery time for all four blocks If either of these limits is reached and a block has not yet been recovered the command will end with CHECK CONDITION status and an unrecoverable read err...

Page 41: ...plug TE if termination is not provided by the host equip ment If the drive is attached to a bus that contains other devices and the new drive is not attached to the end of the bus the Terminator Enab...

Page 42: ...ediate spinup if the Start Command option jumper is disconnected Spinup delay equal to the SCSI Bus ID multiplied by 12 seconds if the Start Command option jumper is disconnected Spinup Delay Option D...

Page 43: ...t and Ready LED indicators J4A Reserved Active LED Connector Fault Ready LED Connector Active Fault Ready Note On some LEDs the flat side of indicator is cathode Pin 1 Pin 16 Pin 15 Pin 17 Pin 18 CATH...

Page 44: ...s are disabled J4B Jumpers DS ME Off Off Spindle starts immediately after power up Default Off On Spindle does not start until a Start Unit command is received from the host On Off Startup is delayed...

Page 45: ...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 th...

Page 46: ...s mounted is connected directly to the HDA and PCBA with no electri cally isolating shock mounts If you do not want the system chassis to be connected to the HDA PCBA ground you must provide a noncond...

Page 47: ...SCSI Interface Product Manual part number 77738479 Table 4 SCSI messages supported by Elite 47 family drives Message Name Message Code Supported by SCSI 2 Abort 06h Y Abort tag 0Dh Y Bus device reset...

Page 48: ...at N Bytes from index Y Physical sector format Y DPRY bit supported Y DCRT bit supported Y STPF bit supported Y IP bit supported Y DSP bit supported Y IMMED bit supported Y VS N Inquiry 12h Y Date cod...

Page 49: ...4h N Read 08h Y Read buffer modes 0 2 3 supported 3Ch Y Read capacity 25h Y Read defect data 37h Y Read extended 28h Y DPO bit supported Y FUA bit supported Y Read long 3Eh Y Reassign blocks 07h Y Rec...

Page 50: ...extended 2Bh Y Send diagnostics page 1Dh Y Supported diagnostics pages Y Translate page Y Set limits 33h N Start unit stop unit start stop spindle 1Bh Y Synchronize cache 35h Y Test unit ready 00h Y V...

Page 51: ...e drive for each Vital Product Data page the initiator wants the drive to send back 9 3 2 Mode Sense data The Mode Sense command provides a means for the drive to report its operating parameters to th...

Page 52: ...7 6 5 3 2 1 and 0 are changeable because those bits are all ones Bit 4 is not changeable In this particular example it indicates 7 of 8 error recovery control bits are changeable FF in column 4 indica...

Page 53: ...0 00 00 00 00 00 00 00 00 00 CHG 02 82 0E FF FF 00 00 00 00 00 00 00 00 87 00 00 00 DEF 03 83 16 00 A8 00 52 00 00 00 00 01 48 02 00 00 01 00 28 00 7C 40 00 00 00 CHG 03 83 16 00 00 FF FF 00 00 00 00...

Page 54: ...Y Asynchronous event notification Y Attention condition Y Contingent allegiance condition Y Capacity programming Y Deferred error handling N Differential interface circuits available Y Disconnect reco...

Page 55: ...Details of the physical electrical and logical characteristics are given in sections following while the SCSI operational aspects of Seagate drive interfaces are provided in the SCSI Interface Produc...

Page 56: ...46 Elite 47 Product Manual Rev A Figure 10 Physical interface Pin 1 J6 SCSI I O Connector Pin 1 DC Power Connector J15 DC Power Pin 1 2 3 4 Power 12V 12V ret 5V ret 5V J6 Pin 1 4 3 2 1...

Page 57: ...mpedance matching is especially important to maintain adequate margin at FAST and FAST 20 Ultra SCSI transfer rates Elite 47 drives use non shielded cable connectors Use a 68 conductor flat cable or 3...

Page 58: ...ble 10 4 SCSI ID7 has highest arbitration priority Priority is ID 7 to ID 0 then ID 15 to ID 8 ID 8 has the lowest pri ority 5 Last drive on daisy chain 6 If end device external terminator and closed...

Page 59: ...Elite 47 Product Manual Rev A 49 Figure 12 Non shielded 68 pin SCSI device connector Position 1 2X 050 2X R 125 2 060 197...

Page 60: ...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...

Page 61: ...to implement equivalent contact assignments 6 Connector contacts are on 0 100 inch 2 54 mm centers 7 8 bit devices which are connected to the 16 data bit differential I O shall leave the following sig...

Page 62: ...r characteristics Single ended drives use an ANSI SCSI single ended receiver with hysteresis gate or equivalent as a line receiver Figure 13 Single ended transmitters and receivers Notes 1 Part of act...

Page 63: ...he daisy chain Do not termi nate any other peripherals on the chain Note Remove the Enable SCSI Terminator TE jumper from J4A pins 19 and 20 when terminators are not required 9 9 Terminator power You...

Page 64: ...ntify MSG in T14 4 5 7 1 34 s Reselect identify MSG to status T15 4 5 8 Command dependent Command dependent Reselect identify MSG to data media T16 4 5 11 Command dependent Command dependent Data to s...

Page 65: ...10 T23 10 1 0 4 5 4 0 12 s 0 12 s Data in byte transfer parameter T24 4 5 12 0 04 s Data out byte transfer parameter T25 4 5 13 0 04 s Next data in byte access parameter T26 4 5 12 0 10 s 0 12 s Next...

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Page 67: ...You can also send E mail with your questions to DiscSupport Seagate com or TapeSupport Seagate com Seagate CompuServe forum Online technical support for Seagate products is available on CompuServe To...

Page 68: ...3 Location Phone number Australia 61 2 9725 3366 9 00 A M to 5 00 P M Eastern time M F France 33 1 41 86 10 86 9 30 A M to 12 30 P M 2 00 P M to 5 00 P M M F Germany Disc 49 89 140 9332 Tape 49 89 140...

Page 69: ...cache buffer 7 cache control prefetch multi segmented 11 cache operation 11 cache statistics page 38 caching parameters page 39 caching write data 12 capacities 7 unformatted 9 CDB 12 CE Marking 3 cer...

Page 70: ...ironmental requirements 15 error management 29 error rates 15 error recovery 29 error recovery page 39 error recovery process 16 error correction code 6 errors 15 16 ETC bit 38 European Union requirem...

Page 71: ...tors 47 48 mean time between failures 7 15 16 23 mechanical specifications 27 media characteristics 7 medium error 16 message parity error SCSI message 37 message phase 45 message reject SCSI message...

Page 72: ...6 specifications 15 remote switch 31 repair 17 reporting actual retry count 44 REQ ACK offset 45 request sense command 39 reservation conflict status 44 reserve command 39 reset condition 44 restore p...

Page 73: ...cal support services 57 temperature ambient 35 non operating 25 operating 23 terminate I O process SCSI message 37 terminator 31 53 circuits 52 enable jumper TE 31 power 53 requirements 31 53 test uni...

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Page 76: ...Seagate Technology Inc 920 Disc Drive Scotts Valley California 95066 4544 USA Publication Number 83329280 Rev A Printed in USA...

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