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Содержание CHEETAH ST34501FC

Страница 1: ...Cheetah 4LP FC Disc Drive ST34501FC Product Manual Volume 1...

Страница 2: ......

Страница 3: ...Cheetah 4LP FC Disc Drive ST34501FC Product Manual Volume 1...

Страница 4: ...Cheetah SeaFAX SeaFONE SeaNET SeaTDD and SeaBOARD are either trademarks or registered trademarks of Seagate Technology Inc or one of its subsidiaries All other trademarks or registered trademarks are...

Страница 5: ...Revision status summary sheet Revision Date Writer Engineer Sheets Affected A 07 11 97 L Newman P Kassel All...

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Страница 7: ...for 512 byte sectors 9 4 2 3 General performance characteristics 10 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 5 0 Reliabil...

Страница 8: ...rt login 31 9 1 5 Fibre Channel port login accept 33 9 1 6 Fibre Channel Process Login PRLI 33 9 1 7 Fibre Channel Process Accept ACC 33 9 1 8 Fibre Channel Arbitrated Loop options 34 9 2 Dual port su...

Страница 9: ...rface 25 Figure 6 LED indicator connector 26 Figure 7 Air flow 27 Figure 8 PCB temperature measurement locations 28 Figure 9 HDA case temperature measurement location 28 Figure 10 Physical interface 4...

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Страница 11: ...support the Fibre Channel Arbitrated Loop and SCSI Fibre Channel Protocol specifica tions to the extent described in this manual The Fibre Channel Interface Manual part number 77767496 describes the...

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Страница 13: ...hen 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...

Страница 14: ...nual Seagate part number 77767496 SCSI Interface Product Manual Seagate part number 77738479 ANSI Fibre Channel Documents X3 230 1995 FC Physical and Signaling Interface FC PH X3 272 19946 FC Arbitrat...

Страница 15: ...ocol The head and disc assembly HDA is environmentally sealed at the factory Air recirculates within the HDA through a non replaceable filter to maintain a contamination free HDA environment Refer to...

Страница 16: ...adjustments required Dedicated head landing zone Automatic shipping lock Embedded Grey Code track address to eliminate seek errors Self diagnostics performed at power on 1 1 interleave Zone bit recor...

Страница 17: ...d with the Cheetah 4LP FC Installation Guide part number 83329180 3 7 Factory installed options You may order the following items which are incorporated at the manufacturing facility during production...

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Страница 19: ...2 Seek performance characteristics Refer to paragraph 9 5 FC AL physical interface and to the Fibre Channel Interface Manual part number 77767496 for additional timing details 4 2 1 Seek time 4 2 2 Fo...

Страница 20: ...that which was requested by a Read command are retrieved and stored in the buffer for immediate transfer from the buffer to the host on subsequent Read commands that request those logical blocks this...

Страница 21: ...irst logical block address requested is not in any segment of the cache 1 The drive fetches the requested logical blocks from the disc and transfers them into a segment and then from there to the init...

Страница 22: ...f the segment being written into when the end of the segment is reached the data is written into the beginning of the same cache segment overwriting the data that was written there at the beginning of...

Страница 23: ...m of the individual device error rates 5 1 3 Write errors Write errors can occur as a result of media defects environmental interference or equipment malfunction Therefore write errors are not predict...

Страница 24: ...te data is saved to the disc so that the events that caused a predictive failure can be recre ated The drive measures and saves parameters once every two hours subject to an idle period on the inter f...

Страница 25: ...ive years Depot repair or replacement of major parts is permitted during the lifetime 5 3 4 Service philosophy Special equipment is required to repair the drive HDA To achieve the above service life r...

Страница 26: ...line to an optional port bypass circuit external to the drive defaults to the Enable Bypass state If the bypass circuit is present the next device in the loop will continue to receive the output of th...

Страница 27: ...ce includes ripple noise and transient response 6 At power up the motor current regulator limits the 12V current to an average value of less than 2 5 2 7A although instantaneous peaks may exceed this...

Страница 28: ...performing internal diagnostics T3 Spindle is up to speed and the Head Arm restraint is unlocked Note All times and currents are typical See Table 1 for maximum starting and operating current require...

Страница 29: ...r 6 4 3 Effective altitude sea level reference a Operating 1 000 to 10 000 feet 305 to 3 048 meters b Non operating 1 000 to 40 000 feet 305 to 12 210 meters 6 4 4 Shock and vibration Shock and vibrat...

Страница 30: ...n will not incur physical damage while subjected to periodic vibration not exceeding 15 minutes of duration at major resonant frequency 5 350 Hz 0 75 G Vibration occurring at these levels may degrade...

Страница 31: ...6 05 101 60 25 40 15 87 101 60 6 35 60 32 95 25 60 20 44 45 4 32 7 00 4 83 0 381 27 94 104 14 A B C D E F G H J K L M N P R S 0 010 0 010 0 026 0 010 0 020 0 005 0 005 0 010 0 010 0 010 0 020 0 015 0...

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Страница 33: ...re briefly outlined in this section References to other sec tions are provided when necessary 7 1 Drive internal defects errors Identified defects are recorded on the drive defects list tracks referre...

Страница 34: ......

Страница 35: ...et the AL_PA on the backpanel to a value of 0 the system issues a unique soft assigned physical address auto matically Loop initialization is the process used to verify or obtain an address The loop i...

Страница 36: ...equirements Recommended mating connector part number Berg receptacle 6 position Berg part number 690 006 8 3 Drive orientation The drive may be mounted in any orientation All drive performance charact...

Страница 37: ...ossible air flow patterns are shown in Figure 7 The air flow patterns are created by one or more fans either forcing or drawing air as shown in the illustrations Other air flow patterns are acceptable...

Страница 38: ...le HDA case temperature to meet the 1 000 000 hour MTBF is 45 C The air flow pattern with which the temperature guidelines above were generated is shown in Figure 7 Local average air velocities were 0...

Страница 39: ...he four mounting points fixed and evaluating the out of plane defection of the fourth mounting point when a known force F is applied to the fourth point 8 6 Grounding Signal ground PCB and HDA ground...

Страница 40: ......

Страница 41: ...urned for task management functions supported 9 1 4 Fibre Channel port login Table 5 identifies the required content of the N_Port Login PLOGI payload from an initiator Table 2 Link services supported...

Страница 42: ...Alternate credit model Other bits reserved Must 1 Not checked Port Login Accept will return a 0 not supported x Must 0 N_Port Must 1 XXX FS Receive buffer field size The FS field in the common and Cla...

Страница 43: ...0 00 00 00 00 00 00 00 00 Class 1 48 51 00 00 00 00 52 63 00 00 00 00 00 00 00 00 00 00 00 00 Class 2 64 67 00 00 00 00 68 79 80 00 00 00 00 00 FS FS 00 FF 00 00 Class 3 80 83 00 01 00 00 84 95 00 00...

Страница 44: ...alf Duplex Sent to open another device Accepted from another device OPEN Full Duplex Accepted from another device Private Loop Yes Public Loop No Old Port State No Loop Position Yes Loop Position Repo...

Страница 45: ...Y Translate page 1Dh Y Send diagnostics page Y Supported diagnostics pages Y Translate page 25h Y Read capacity 28h Y Read extended Y Disable page out Y Force unit access N Relative address 2Ah Y Writ...

Страница 46: ...ave mode 7 Y Firmware download option 2 3Ch Y Read buffer Y Read combined header and data mode 0 Y Read data mode 2 Y Read descriptor mode 3 3Eh Y Read long 3Fh Y Write long 40h N Change definition 41...

Страница 47: ...e flash E PROM An initiator can request and receive from the drive a list of default values and use those in a Mode Select command to set up new current and saved values where the values are change ab...

Страница 48: ...es for Mode page 81 Note in columns 5 and 6 bytes 04 and 05 there is 00h which indicates that in bytes 04 and 05 none of the bits are changeable Note also that bytes 06 07 09 10 and 11 are not changea...

Страница 49: ...00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 DEF 84 16 00 19 B0 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 27 31 00 00 CHG 84 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00...

Страница 50: ...notification Y Synchronized locked spindle operation Y Segmented caching N Zero latency read Y Queue tagging up to 64 que tags supported Y Deferred error handling Y Parameter rounding controlled by r...

Страница 51: ...ed in a loop together or with other compatible FC AL devices A maxi mum of 127 devices may have addresses however one of the addresses is reserved for a fabric port switch device This means 126 addres...

Страница 52: ...select device identification Option selection This 40 pin connector is designed to plug directly into a backpanel External cables are not required Part description Positions Part number Features AMP...

Страница 53: ...ing Three 5 volt pins provide logic power to the drive The current return for the 5 volt power supply is through the common ground pins The supply and return current must be distributed as evenly as p...

Страница 54: ...al to the drive 9 5 9 Enable Bypass Signal Port A Port B The Enable Bypass Port A EN BYP Port A and Enable Bypass Port B EN BYP Port B control the port bypass circuits PBC located external to the disc...

Страница 55: ...ve does not provide pull up resistors on these lines The backpanel is required to provide high and low inputs to the SEL ID lines as described in Section 9 6 1 SEL setting 7F hex maps to a valid AL PA...

Страница 56: ...14 7C 39 57 34 64 100 CE 0F 15 7A 3A 58 33 65 101 CD 10 16 79 3B 59 32 66 102 CC 11 17 76 3C 60 31 67 103 CB 12 18 75 3D 61 2E 68 104 CA 13 19 74 3E 62 2D 69 105 C9 14 20 73 3F 63 2C 6A 106 C7 15 21...

Страница 57: ...voltage characteristics are provided in Table 21 The outputs are not AC coupled in order to deliver maximum signal without rise and fall time degradation You must AC couple the receiver to isolate po...

Страница 58: ...2 Figure 16 provides the data valid eye diagram for typical and minimum requirements to recover data at the specified interface error rate Figure 16 Receive eye diagram Table 22 Differential PECL inpu...

Страница 59: ...ate com 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 CompuS...

Страница 60: ...65 488 7528 Taiwan 886 2 715 2923 USA 408 944 9120 Location Phone number Australia 61 2 9725 3366 9 00 A M to 5 00 P M M F England 44 1628 894083 10 00 A M to 1 00 P M 2 00 P M to 5 00 P M M F France...

Страница 61: ...cy 9 B backpanel 42 backplane 45 basic link service frames 31 Basic_Accept BA_ACC 31 Basic_Reject BA_RJT 31 BB Credit 32 bits per inch 9 bracket shield 29 buffer data 6 space 10 busy status 40 bypass...

Страница 62: ...44 signal 44 state 16 environmental interference 13 limits 18 requirements 13 error detection mechanisms FC 16 management 23 rates 13 error correction code 96 bit Reed Solomon 6 Error recovery page 0...

Страница 63: ...nd 36 Log sense command 36 logic power 43 logical block address 11 logical block reallocation scheme 6 logical block size 6 10 logical segments 10 login parameters 32 Logout LOGO 31 loop 34 41 44 46 d...

Страница 64: ...arameter rounding 40 pass through state 16 PBC 41 44 peak operating current 17 peak to peak measurements 18 PECL input 48 performance characteristics detailed 9 general 10 performance highlights 6 phy...

Страница 65: ...and 35 Seek command 34 seek error defined 13 rate 13 Seek extended command 35 seek performance characteristics 9 seek positioning error 15h 13 seek time average typical 9 full stroke typical 9 single...

Страница 66: ...it eye diagram 47 transmitters 43 transporting the drive 16 troubleshooting 49 TTL input characteristics 47 U UI 33 unique identifier 33 Unit attention page 00h command 35 Unit serial number page comm...

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Страница 68: ...Seagate Technology Inc 920 Disc Drive Scotts Valley California 95066 4544 USA Publication Number 83329190 Rev A Printed in USA...

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