Seagate Cheetah 18FC ST118202FC Product Manual Download Page 10 | Manualshive

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Summary of Contents for Cheetah 18FC ST118202FC

Page 1: ...Cheetah 18FC Disc Drive ST118202FC Product Manual Volume 1...

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Page 3: ...Cheetah 18FC Disc Drive ST118202FC Product Manual Volume 1...

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

Page 5: ...heet Revision Date Writer Engineer Sheets Affected A 06 15 98 L Newman P Kassel All B 07 24 98 L Newman P Kassel 4 6 7 9 10 14 15 19 23 30 38 34 41 44 46 49 and 52 C 11 5 98 L Newman P Kassel 7 13 14...

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Page 7: ...ulti segmented cache control 10 4 5 Cache operation 11 4 5 1 Caching write data 12 5 0 Reliability specifications 13 5 1 Error rates 13 5 1 1 Environmental interference 13 5 1 2 Interface errors 13 5...

Page 8: ...9 1 6 Fibre Channel Process Login PRLI 35 9 1 7 Fibre Channel Process Accept ACC 35 9 1 8 Fibre Channel fabric login 36 9 1 9 Fibre Channel fabric accept login 37 9 1 10 Fibre Channel Arbitrated Loop...

Page 9: ...rface 27 Figure 6 LED indicator connector 28 Figure 7 Air flow 29 Figure 8 PCBA temperature measurement locations 30 Figure 9 HDA case temperature measurement location 30 Figure 10 Physical interface...

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Page 11: ...pport 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 gen...

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Page 13: ...ckaged 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 ade...

Page 14: ...ignaling Interface 2 X3 303 199X FC PH 3 Fibre Channel Physical and Signaling Interface 3 X3 272 1996 FC Arbitrated Loop FC AL X3 269 1996 Fibre Channel Protocol for SCSI FCP NCITIS TR 19 Private Loop...

Page 15: ...he Fibre Channel interface FC AL topology or the SCSI fibre channel protocol The head and disc assembly HDA is environmentally sealed at the factory Air recirculates within the HDA through a non repla...

Page 16: ...tenance or 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...

Page 17: ...es OEM standard drives are shipped with the Cheetah 18FC Installation Guide part number 83329250 3 7 Factory installed options You may order the following items which are incorporated at the manufactu...

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Page 19: ...ek performance characteristics See Section 9 5 FC AL physical interface on page 46 and the Fibre Channel Interface Manual part number 77767496 for additional timing details 4 2 1 Access time 4 2 2 For...

Page 20: ...If the Prefetch feature is enabled data in contiguous logical blocks on the disc immediately beyond that which was requested by a Read command are retrieved and stored in the buffer for immediate tra...

Page 21: ...equested logical blocks from the cache to the initiator in accordance with the buffer full ratio specification given in Mode Select Disconnect Reconnect parameters page 02h 3 The drive prefetches addi...

Page 22: ...cks that are to be written are already stored in the cache from a previous read or write command If there are the respective cache segments are cleared The new data is cached for subsequent read comma...

Page 23: ...s a failure of the receiver on a port to recover the data as transmitted by the device port connected to the receiver The error may be detected as a running disparity error illegal code loss of word s...

Page 24: ...is issue a Log Sense command to log page 0x3E This allows you to control when S M A R T interruptions occur Forcing S M A R T with the RTZ command resets the timer Performance impact S M A R T attribu...

Page 25: ...n 8 4 1 are not exceeded Short term excursions up to the specification limits of the operating environment will not affect MTBF performance Operating the drive at case temperatures above these values...

Page 26: ...air facility Troubleshooting and repair of PCBs in the field is not recommended because of the extensive diagnostic equipment required for effective servicing The drive warranty is voided if the HDA i...

Page 27: ...rive defaults to the FC AL Monitoring state Pass through state when it is powered on by switching the power or hot plugged The control line to an optional port bypass circuit external to the drive def...

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Page 29: ...nd transient response 6 At power up the motor current regulator limits the 12 volt current to an average value of less than 2 1 amperes although instantaneous peaks may exceed this value These peaks s...

Page 30: ...12V current profile T0 Power is applied to the drive T1 Controller self tests are performed T2 Spindle begins to accelerate under current limiting after performing internal diagnostics T3 Spindle is u...

Page 31: ...ned by Seagate 6 4 2 Relative humidity The values below assume that no condensation on the drive occurs a Operating 5 to 95 relative humidity with a maximum gradient of 10 per hour b Non operating 5 t...

Page 32: ...ate error free while subjected to continuous vibration not exceeding 5 350 Hz 0 5 G Vibration may be applied on the X Y or Z axis b Operating abnormal Equipment as installed for normal operation will...

Page 33: ...er during idle mode is 4 4 bels typical when measured to ISO 7779 specification There will not be any discrete tones more than 10 dB above the masking noise on typical drives when measured according t...

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Page 35: ...hen an error occurs during drive operation the drive if programmed to do so performs error recovery proce dures to attempt to recover the data The error recovery procedures used depend on the options...

Page 36: ...nd with Check Condition status and an unrecoverable read error will be reported 7 3 FC AL system errors Information on the reporting of operational errors or faults across the interface is given in th...

Page 37: ...If you set the AL_PA on the backpanel to a value of 0 the system issues a unique soft assigned physical address automatically Loop initialization is the process used to verify or obtain an address Th...

Page 38: ...number 690 006 8 3 Drive orientation The drive may be mounted in any orientation All drive performance characterizations however have been done with the drive in horizontal discs level and vertical dr...

Page 39: ...air flow patterns are acceptable as long as the tem perature measurement guidelines are met Figure 7 Air flow To confirm that the required cooling for the electronics and HDA is provided place the dri...

Page 40: ...a tion of the drive at the maximum case temperature is intended for short time periods only Continuous opera tion at the elevated temperatures will reduce product reliability Figure 8 PCBA temperature...

Page 41: ...s The out of plane distortion X is determined by defining a plane with three of the four mounting points fixed and evaluating the out of plane deflection of the fourth mounting point when a known forc...

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Page 43: ...nses Table 5 lists the FC SCSI FCP response codes returned for task management functions supported Table 3 Link services supported Type of frame Link service Basic link service frames Abort Sequence A...

Page 44: ...offset Must 1 Random relative offset Not checked Port Login Accept will return a 0 not supported Valid version level x N_Port F_Port Must 0 N_Port Alternate credit model Must 1 Other bits reserved xx...

Page 45: ...0 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 00...

Page 46: ...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 08 40 00 00 00 00 Class 3 80 83 00 00 00 00 84 95 00 00 00 00 00 00 00 00...

Page 47: ...checked The FC AL drive uses BB Credit of zero 0 CF Common features This binary field selects the common features requested by the fabric login MSB Continuously increasing offset x Random relative of...

Page 48: ...used at least one port will attempt tak ing a soft address to prevent an address conflict Note When a ST118202FC drive is connected in loops with previous Seagate FC drive products Barracuda 4LP FC S...

Page 49: ...ing def page Y Firmware numbers page Y Date code page Y Jumper settings page 15h Y Mode select same pages as Mode Sense command shown below 3 16h Y Reserve N 3rd party reserved N Extent reservation 17...

Page 50: ...N Relative address 30h N Search data high 31h N Search data equal 32h N Search data low 33h N Set limits 34h N Prefetch 35h Y Synchronize cache 36h N Lock unlock cache 37h Y Read defect data 39h N Co...

Page 51: ...h Y Write long 40h N Change definition 41h Y Write same N PBdata N LBdata 42 4Bh N Not used 4Ch Y Log Select 4Dh Y Log Sense 4E 4Fh N Not used 50h N XD write 51h N XP write 52h N XD read 53 54h N Not...

Page 52: ...st that are not changeable by the Mode Select command get their values from default values storage When power is applied to the drive it takes saved values from the media and stores them as current va...

Page 53: ...n byte 02 hex value FF equates to the binary pattern 11111111 If there is a zero in any bit position in the field it means that bit is not changeable Since all of the bits in byte 02 are ones all of t...

Page 54: ...00 00 00 00 00 00 00 00 00 00 00 00 00 00 DEF 84 16 00 1B 32 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 27 3D 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 00 DEF 87...

Page 55: ...tification N Synchronized locked spindle operation Y Segmented caching N Zero latency read Y Queue tagging up to 128 queue tags supported Y Deferred error handling Y Parameter rounding controlled by R...

Page 56: ...ogether 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 addresses are availa...

Page 57: ...de 40 512 220 91 101N With polarization Molex 40 717431040 With polarization 1 618 003 in 41 1 0 08 mm 0 197 003 in 5 00 08 mm 2 places 1 28 in 32 47 mm 64 in 16 24 mm Pin 40 Pin 20 Pin 21 Pin 1 1 618...

Page 58: ...on ground Pin Signal name Signal type Pin Signal name Signal type 1 EN bypass port A TTL output 21 12 Volts charge 2 12 Volts 22 Ground 3 12 Volts 23 Ground 4 12 Volts 24 Port A_in Diff PECL input pai...

Page 59: ...e drive filter capacitors to charge Current to the drive through the long charge pins is limited by the system in which the drive operates Three of the 12 volt pins are shorter to allow capacitive pre...

Page 60: ...state of these signals can be wired into the backplane socket or driven by logic on the backplane 9 5 11 SEL_6 through SEL_0 ID lines The SEL_6 through SEL_0 ID lines determine drive address and opti...

Page 61: ...tion of the SEL lines A high level the default state indicates the drive requires address informa tion on the SEL lines A low level indicates the drive is attempting an ESI transfer The enclosure may...

Page 62: ...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 7...

Page 63: ...without rise and fall time degradation You must AC couple the receiver to isolate potentially different DC characteristics of the outputs and the receiver Table 22 TTL characteristics State Voltage C...

Page 64: ...cs are provided in Table 25 Figure 16 provides the data valid eye diagram for typical and minimum requirements to recover data at the specified interface error rate The inputs are AC coupled on the dr...

Page 65: ...ubleshooting tips and specifications for disc drives and tape drives This service is available 24 hours daily and requires a touch tone phone International callers can reach this service by dialing 1...

Page 66: ...1 905 812 8099 or 1 800 624 9857 FAX 1 905 812 7807 European Support Services For European customer support dial the toll free number for your specific country for presales support techni cal support...

Page 67: ...e Netherlands Asia Pacific Support Services If the customer service number for your country is not listed here dial our Asia Pacific headquarters located in Singapore during business hours from 9 00 A...

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Page 69: ...c link service frames 33 Basic_Accept BA_ACC 33 Basic_Reject BA_RJT 33 BB 34 37 BB Credit 34 37 buffer data 6 space 11 busy status 45 bypass circuit 17 Byte check command 40 bytes per surface 9 bytes...

Page 70: ...ts 3 enable bypass port A 50 port B 50 signal 50 state 17 Enclosure Services interface 48 Enclosure services page command 39 environmental interference 13 limits 21 requirements 13 error detection mec...

Page 71: ...nd 39 jumpers 27 L latency average rotational 9 10 LBdata 41 LED driver signals 53 Link Service Reject LS_RJT 33 link services supported 33 Lock unlock cache command 40 Log select command 41 Log sense...

Page 72: ...10 P P_LOGI received on Port A 35 received on Port B 35 parameter rounding 45 pass through state 17 PBC 46 50 PBdata 41 peak operating current 19 peak to peak measurements 20 PECL input 54 performance...

Page 73: ...mmand 39 rotation speed 9 running disparity 17 S safety 3 SCA part numbers 47 SCSI interface commands supported 39 SCSI Interface Product Manual 3 Search data equal command 40 high command 40 low comm...

Page 74: ...transporting the drive 17 TTL input characteristics 53 U UI 35 36 unique identifier 35 36 Unit attention page 00h command 39 Unit serial number page command 39 unrecoverable error 13 write error defi...

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Page 76: ...Seagate Technology Inc 920 Disc Drive Scotts Valley California 95066 4544 USA Publication Number 83329330 Rev C Printed in USA...

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