Cache operation | Seagate ST373554FC, ST3146954FC, ST336854FC

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Seagate ST373554FC, ST3146954FC, ST336854FC manual Cache operation

Contents

ST3146954FC ST373554FC ST336854FC Cheetah 15K.4 FCPage ST3146954FC ST373554FC ST336854FC March Rev. A Revision status summary sheet07/15/05 Rev. B DraftPage 4.0 Performance characteristics Contents5.0 Reliability specifications 6.0 Physical/electrical specifications 8.0 Installation 7.0 Defect and error management9.0 Interface requirements 10.0 Seagate Technology support services Cheetah 15K.4 FC Product Manual, Rev. B List of Figures Page Figure 1. Cheetah 15K.4 FC family disc drive 1.0 Scope Cheetah 15K.4 FC Product Manual, Rev. B 2.1 Standards 2.0 Applicable standards and reference documentation2.1.1 Electromagnetic compatibility 2.1.1.1 Electromagnetic susceptibility Electromagnetic compliance for the European Union 2.1.2 Electromagnetic complianceAustralian C-Tick Korean MIC 2.2 Reference documents Specification for Acoustic Test Requirement and ProceduresFibre Channel Interface Manual Cheetah 15K.4 FC Product Manual, Rev. B 3.0 General description 3.2 Media description 3.1 Standard features 3.4 Reliability 3.3 Performance3.5 Formatted capacities 3.5.1 Programmable drive capacity 3.7 Factory-installed options 3.6 Factory-installed accessories3.8 User-installed accessories 4.1 Internal drive characteristics 4.0 Performance characteristics4.2 Seek performance characteristics 4.2.1 Access time General performance characteristics 4.2.2 Format command execution time minutes4.3 Start/stop time 4.4 Prefetch/multi-segmented cache control 4.5 Cache operation 4.5.2 Prefetch operation 4.5.1 Caching write data Cheetah 15K.4 FC Product Manual, Rev. B Cheetah 15K.4 FC Product Manual, Rev. B 5.1 Error rates 5.0 Reliability specifications5.1.1 Recoverable Errors 5.1.2 Unrecoverable Errors 5.1.3 Seek errors 5.2 Reliability and service5.1.4 Interface errors 5.2.2 Preventive maintenance 5.2.4 S.M.A.R.T 5.2.3 Hot plugging the driveControlling S.M.A.R.T Performance impact Fully-enabled delayMaximum processing delay On-line only delay Description Parameter Code5.2.6 Drive Self Test DST 5.2.6.1 DST failure definition 5.2.6.2 Implementation 5.2.6.2.1 State of the drive prior to testing5.2.6.2.2 Invoking DST 5.2.6.2.3 Short and extended tests 5.2.6.2.4 Log page entries 5.2.7 Product warranty5.2.6.2.5 Abort Shipping Product repair and return information 6.1 AC power requirements 6.0 Physical/electrical specifications6.2 DC power requirements 3 See +12V current profile in Figure 6.2.2 Power sequencing General DC power requirement notes6.2.1 Conducted noise immunity 6.2.3 Current profiles Figure 3. Typical ST3146954FC drive, 2 Gbit, +5V current profile Figure 2. Typical ST3146954FC drive, 2 Gbit, +12V current profile Figure 5. Typical ST373554FC drive +5V current profile Figure 4. Typical ST373554FC drive +12V current profile Figure 7. Typical ST336854FC drive +5V current profile Figure 6. Typical ST336854FC drive +12V current profile ST3146954FC 6.3 Power dissipation Power watts ST373554FC ST336854FC 6.4.1 Temperature a. Operating 6.4 Environmental limits6.4.2 Relative humidity 6.4.4 Shock and vibration 6.4.3 Effective altitude sea level a. Operating6.4.4.1 Shock Package size Packaged/product weightDrop height Figure 12. Recommended mounting 6.4.4.2 Vibration a. Operating-normal 6.4.5 Air cleanliness6.4.6 Acoustics 6.4.7 Electromagnetic susceptibility Figure 13. Mounting configuration dimensions 6.5 Mechanical specifications 7.1 Drive internal defects/errors 7.0 Defect and error management7.2 Drive error recovery procedures Cheetah 15K.4 FC Product Manual, Rev. B 7.3 FC-AL system errors 7.4.1 Media Pre-Scan 7.4 Background Media Scan 8.1 Drive ID/option selection 8.0 Installation Figure 15. LED indicator connector 8.2 LED connectionsFigure 14. Physical interface 8.3 Drive orientation 8.2.1 J6 connector requirements8.4 Cooling 8.6 Grounding 8.5 Drive mountingK x X = F 15lb = 67N 9.1.1 Fibre Channel link service frames 9.1 FC-AL features9.0 Interface requirements 9.1.3 Fibre Channel task management responses 9.1.2 Fibre Channel task management functionsFibre Channel SCSI FCP task management functions Task name NPort login PLOGI payload 9.1.4 Fibre Channel port loginBytes 9.1.6 Fibre Channel Process Login 9.1.5 Fibre Channel port login acceptNPort Login Accept ACC payload Process Login PLRI payload 9.1.8 Fibre Channel fabric login 9.1.7 Fibre Channel Process Login AcceptProcess Login Accept ACC payload Fabric Login FLOGI payload Fabric Login Accept ACC payload 9.1.9 Fibre Channel fabric accept login 9.1.10 Fibre Channel Arbitrated Loop options 9.2 Dual port support Table 16 Supported commands 9.3 SCSI commands supportedCommand code Command name Table 16 Supported commands continued Command code 3 Reference Mode Sense command 1Ah for mode pages supported 9.3.2 Mode Sense data 9.3.1 Inquiry data 3. Current values CHG = Changeable bits indicates if default value is changeable4. Changeable values Definitions SAV = Current saved value MODE SENSE 10 BYTE HEADER DATA Cheetah 15K.4 FC Product Manual, Rev. B Cheetah 15K.4 FC Product Manual, Rev. B Miscellaneous features 9.4 Miscellaneous operating features and conditionsFeature or condition Miscellaneous status 9.5 FC-AL physical interface 9.5.1 Physical characteristics9.5.1.1 Physical description Features 9.5.2 Connector requirementsFC-AL SCA device connector dimensions Figure 20. J6 connector dimensions 9.5.4 Pin descriptions 9.5.3 Electrical description 9.5.7 Fault LED Out 9.5.6 Power9.5.5 FC-AL transmitters and receivers Figure 21. FC-AL transmitters and receivers 9.5.8 Active LED Out 9.5.9 Enable port bypass signals9.5.10 Motor start controls Normal command activity 9.5.11 SEL6 through SEL0 ID lines 9.5.11.1 Parallel Enclosure Services Interface ESI Arbitrated loop physical address ALPA values SettingALPA SEL ID TTL input characteristics 9.6 Signal characteristics9.5.12 Device control codes 9.6.1 9.6.3 FC Differential output 9.6.2 LED driver signals9.6.4 FC Differential input Bit Time Vout mv XMIT Eye Eye diagram data values Receive eye diagramVin mv 941 ps 659 ps 376 ps Cheetah 15K.4 FC Product Manual, Rev. B Online services 10.0 Seagate Technology support servicesSeagate Service Centers Internet USA/Canada/Latin America support services Seagate Service Centers Customer Service OperationsWarranty Service Data Recovery Services Africa/Middle East support services European support servicesFAX services-All Europe toll call Warranty Service Asia/Pacific support services Numerics Index Download microcode with offsets and save mode 7 front panel 38 FS 49, 50, 52 function NN 49 mounting 46 holes 46 orientationspin descriptions 66 PN 49 Self-Monitoring Analysis and Reporting Technology 9 LED driver 72 single-unit shipping pack kit 10 SMART 9 SMP = 1 in Mode Select command 63 SO 49UI 50, 51 unformatted Page Seagate Technology LLC