Seagate ST973451FC, ST936751FC manual Drive mounting, Grounding

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Note. Air flows in the direction shown (back to front) or in reverse direction (front to back)

Above unit

Under unit

Note. Air flows in the direction shown or in reverse direction (side to side)

Figure 13. Air flow

Above unit

Under unit

8.3Drive mounting

Use M3 x .5 metric screws to mount the drive using either side, bottom, or end mounting holes. Select a screw length that results in a minimum thread engagement of 0.12 inches when using the side-mounting holes or a minimum thread engagement of 0.10 inches when using the bottom or end mounting holes. Use a maximum torque of 4.5 +/- .45 in lbs. If the screws are torques above the specified values, threads could be stripped.

Note. Before mounting the drive in any kind of adapter frame, verify that the drive can meet the shock and vibration specifications while mounted in such an adapter frame.

8.4Grounding

Signal ground (PCBA) and HDA ground are connected together in the drive and cannot be separated by the user. The equipment in which the drive is mounted is connected directly to the HDA and PCBA with no electri- cally isolating shock mounts. If it is desired for the system chassis to not be connected to the HDA/PCBA ground, the systems integrator or user must provide a nonconductive (electrically isolating) method of mount- ing the drive in the host equipment.

Increased radiated emissions may result if you do not provide the maximum surface area ground connection between system ground and drive ground. This is the system designer’s and integrator’s responsibility.

42	Savvio 15K.1 FC Product Manual, Rev. B

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Contents Savvio 15K.1 FC ST973451FC ST936751FCPage Contents Installation Physical/electrical specificationsDefect and error management Interface requirementsSeagate Technology support services Savvio 15K.1 FC Product Manual, Rev. B List of Figures Page Scope Savvio 15K.1 family disc driveSavvio 15K.1 FC Product Manual, Rev. B Electromagnetic compatibility Applicable standards and reference documentationStandards Electromagnetic susceptibilityEuropean Union Restriction of Hazardous Substances RoHS Reference documents Ncits TR-19Savvio 15K.1 FC Product Manual, Rev. B General description Standard features Reliability Media descriptionPerformance Formatted capacitiesProgrammable drive capacity Factory-installed accessoriesOptions Seek performance characteristics Performance characteristicsInternal drive characteristics Access timeStart/stop time Format command execution timeGeneral performance characteristics Caching write data Prefetch/multi-segmented cache controlCache operation Prefetch operation Recoverable Errors Reliability specificationsError rates Seek errors Reliability and serviceUnrecoverable Errors Interface errorsControlling S.M.A.R.T Hot plugging the drive4 S.M.A.R.T Determining rate Performance impactReporting control Predictive failuresDrive Self Test DST Temperature Log Page 0DhParameter Code Description DST failure definitionInvoking DST State of the drive prior to testingImplementation Short and extended testsAbort Product warrantyLog page entries ShippingProduct repair and return information DC power requirements Physical/electrical specificationsAC power requirements General DC power requirement notes Current profiles Power sequencingConducted noise immunity +5V +12VTypical ST936751FC drive +12V and +5V current profiles ST973451FC Power dissipationCURRENT/POWER vs Throughput FC 1GB Random 8 Block Reads CURRENT/POWER vs Throughput FC 4GB Random 8 Block Reads FC CURRENT/POWER vs Throughput FC 1GB Random 8 Block Reads ST936751FCEnvironmental limits TemperatureFC CURRENT/POWER vs Throughput FC 4GB Random 8 Block Reads Shock and vibration Relative humidityEffective altitude sea level ShockPackage size Packaged/product weight Drop height Recommended mounting Corrosive environment Air cleanlinessVibration Acoustics Mechanical specifications Drive dimensions inchesDrive error recovery procedures Defect and error managementDrive internal defects/errors FC-AL system errors Deferred Auto-Reallocation Background Media ScanMedia Pre-Scan Idle Read After Write Cooling InstallationDrive orientation Drive mounting GroundingLink services supported Type of frame FC-AL featuresFibre Channel link service frames Interface requirementsFibre Channel Scsi FCP task management functions Fibre Channel task management functionsFibre Channel task management responses Task name SupportedFibre Channel port login NPort login Plogi payload BytesNPort Login Accept ACC payload Bytes Fibre Channel port login acceptFibre Channel Process Login Process Login Plri payloadProcess Login Accept ACC payload Bytes Fibre Channel Process Login AcceptFibre Channel fabric login Fabric Login Flogi payload BytesFibre Channel fabric accept login Fabric Login Accept ACC payload BytesFC-AL options supported Dual port supportFibre Channel Arbitrated Loop options Option SupportedScsi commands supported Supported commands Command code Command nameDisconnect/reconnect control page 02h Savvio 15K.1 FC Product Manual, Rev. B LBdata Supported commands Command code Supported 4 Command name Inquiry data Savvio inquiry data Bytes Data hexSupported Feature or condition Miscellaneous operating features and conditionsMiscellaneous features Miscellaneous statusPhysical description Physical characteristicsFC-AL physical interface Electrical description Connector requirementsPart description Positions Part number Features Pin descriptions FC-SCA pin descriptions Pin Signal name Signal typePin Signal name Signal type FC-AL transmitters and receivers PowerFault LED Out Motor start controls Enable port bypass signalsActive LED Out Parallel Enclosure Services Interface ESI 11 SEL6 through SEL0 ID linesHex Dec SettingArbitrated loop physical address Alpa values Device control codes Signal characteristicsTTL input characteristics Differential Pecl output Differential Pecl inputSavvio 15K.1 FC Product Manual, Rev. B Presales Support Seagate Technology support servicesInternet Technical SupportData Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index NumericsFAN Page Plogi SEL ID See also cooling