Seagate ST35000414SS, ST35000415SS manual Drive mounting, Grounding

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9.3Drive mounting

Mount the drive using the bottom or side mounting holes. If you mount the drive using the bottom holes, ensure that you do not physically distort the drive by attempting to mount it on a stiff, non-flat surface.

The allowable mounting surface stiffness is 80 lb/in (14.0 N/mm). The following equation and paragraph define the allowable mounting surface stiffness:

K x X = F < 15lb = 67N

where K is the mounting surface stiffness (units in lb/in or N/mm) and X is the out-of-plane surface distortion (units in inches or millimeters). 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 force (F) is applied to the fourth point.

9.4Grounding

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.

50	ConstellationES Series SAS Product Manual, Rev. D

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Contents Standard Models ST32000444SS ST31000424SS ST3500414SSST32000445SS ST31000425SS ST3500415SS Self-Encrypting Drive ModelsRevision history Contents About self-encrypting drives Defect and error managementInstallation Interface requirementsSeagate Technology support services ConstellationES Series SAS Product Manual, Rev. D List of Figures ST32000444SS & ST32000445SS model current profilesConstellationES Series SAS Product Manual, Rev. D Scope Electromagnetic compatibility Applicable standards and reference documentationStandards Electromagnetic susceptibilityAustralian C-Tick Electromagnetic complianceElectromagnetic compliance for the European Union Korean KCCReference documents European Union Restriction of Hazardous Substances RoHSGeneral description Standard features Media descriptionFormatted capacities PerformanceReliability Programmable drive capacityFactory-installed options Seek performance characteristics Performance characteristicsInternal drive characteristics Access timeGeneral performance characteristics Start/stop timePrefetch/multi-segmented cache control Cache operationCaching write data Prefetch operationRecoverable Errors Reliability specificationsError rates Unrecoverable ErrorsInterface errors Reliability and serviceSeek errors Preventive maintenancePerformance impact 4 S.M.A.R.TControlling S.M.A.R.T Reporting controlPredictive failures Temperature Log Page 0Dh Parameter Code DescriptionThermal monitor DST failure definition State of the drive prior to testingDrive Self Test DST ImplementationExtended test Function Code 010b Short and extended testsShort test Function Code 001b Log page entriesShipping Product warrantyProduct repair and return information PowerChoiceTM power management Physical/electrical specificationsPowerChoice modes AC power requirements DC power requirementsConstellationES Series SAS Product Manual, Rev. D ConstellationES Series SAS Product Manual, Rev. D Page Power sequencing General DC power requirement notesConducted noise immunity Current profiles ST32000444SS & ST32000445SS model current profilesST31000424SS & ST31000425SS model current profiles ST3500414SS & ST3500415SS model current profiles Power dissipation ST32000444SS and ST32000445SS in 3Gb operationST32000444SS and ST32000445SS in 6Gb operation ST31000424SS and ST31000425SS in 3Gb operation ST31000424SS and ST31000425SS in 6Gb operation ST3500414SS and ST3500415SS in 3Gb operation ST3500414SS CURRENT/POWER vs Throughput SAS 3.0GBOs per Second ST3500414SS and ST3500415SS in 6Gb operation Environmental limits Temperature a. OperatingRelative humidity Shock and vibration Effective altitude sea level a. OperatingShock Recommended mounting Acoustics Air cleanlinessVibration a. Operating-normal Corrosive environmentElectromagnetic susceptibility Mechanical specifications Mounting configuration dimensionsAbout self-encrypting drives Controlled accessAdmin SP Data encryptionDrive locking Default passwordRandom number generator RNG Data bandsSupported commands Authenticated firmware downloadPower requirements Cryptographic eraseDrive internal defects/errors Defect and error managementDrive error recovery procedures SAS system errors Media Pre-Scan Background Media ScanDeferred Auto-Reallocation Idle Read After Write Installation Drive orientationCooling Air flowDrive mounting GroundingSAS features Interface requirementsDual port support Scsi commands supported Supported commandsSupported commands Supported commands Supported commands Inquiry data Mode Sense dataConstellation ES inquiry data Page Mode Data Header 74 70 6d b0 00 00 02 3a 38 60 30 00 00 02 Miscellaneous features Miscellaneous operating features and conditionsMiscellaneous status SAS physical interface Datum B Section C C Section a a Electrical description Physical characteristicsConnector requirements Pin descriptionsSAS transmitters and receivers Signal characteristicsPower Ready LED OutDifferential signals SAS-2 Specification ComplianceLED drive signal General interface characteristicsWeb Seagate Technology support servicesWarranty Support Direct.seagate.com Spp.seagate.com Presales SupportData Recovery Services Call Center Toll-free Direct dial Technical Support Warranty ServiceData Recovery Services Authorized Service Centers Presales SupportIndex NumericsKCC Msid Mtbf See also cooling Page ConstellationES Series SAS Product Manual, Rev. D Page Seagate Technology LLC