Seagate ST400FX0012, ST100FX0002, ST200FX0002, ST400FX0002 manual Cooling, Air flow

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10.2Cooling

Cabinet cooling must be designed by the customer so that the temperature of the drive will not exceed temper- ature conditions specified in Section 7.5.1, "Temperature."

The rack, cabinet, or drawer environment for the drive must provide heat removal from the assembly. The sys- tem designer should confirm that adequate heat removal is provided using the temperature measurement guidelines described in Section 7.5.1.

Forced air flow may be required to keep temperatures at or below the temperatures specified in Section 7.5.1 in which case the drive should be oriented, or air flow directed, so that the least amount of air flow resistance is created while providing air flow. Also, the shortest possible path between the air inlet and exit should be cho- sen to minimize the travel length of air heated by the drive and other heat sources within the rack, cabinet, or drawer environment.

If forced air is determined to be necessary, possible air-flow patterns are shown in Figure 13. The air-flow pat- terns are created by one or more fans, either forcing or drawing air as shown in the illustrations. Conduction, convection, or other forced air-flow patterns are acceptable as long as the temperature measurement guide- lines of Section 7.5.1 are met.

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

Note. Image may not represent actual product, for reference only.

42	Pulsar XT.2 SAS Product Manual, Rev. B

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Contents ST400FX0002ST400FX0012 ST200FX0002 ST100FX0002 Standard Models Self-Encrypting Drive ModelsRevision history Contents Installation Physical/electrical specificationsDefect and error management About self-encrypting drivesPage Pulsar XT.2 SAS Product Manual, Rev. B List of Figures Page Seagate Technology support services Seagate Online Support and ServicesScope Electromagnetic compatibility Applicable standards and reference documentationStandards Electromagnetic susceptibilityAustralian C-Tick Electromagnetic complianceElectromagnetic compliance for the European Union Korean KCCReference documents China Restriction of Hazardous Substances RoHS DirectiveStandard features General descriptionReliability Media descriptionPerformance Programmable drive capacity Factory-installed optionsFormatted capacities Thin Provisioning Drive Configuration Performance characteristics Performance characteristicsInternal drive characteristics Access timeFormat Mode Dcrt Bit IP Bit 400GB 200GB 100GB PerformanceCaching write data Start/stop timeCache control Reliability specifications Error ratesEndurance Management Data Retention Reliability and servicePreventive maintenance Lifetime Endurance ManagementControlling S.M.A.R.T Maximum processing delay Fully-enabled delay4 S.M.A.R.T Performance impactPredictive failures Thermal monitorDST 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 entriesProduct repair and return information Product warrantyShipping StorageAC power requirements Physical/electrical specificationsPower specifications DC power requirements 400GB standard model DC power requirements200GB standard model DC power requirements 100GB standard model DC power requirements Conducted noise immunity General DC power requirement notesPower sequencing Current profilesCurrent profiles for 200GB models 200GB models in 6Gb operation Power dissipation400GB models in 6Gb operation 100GB models in 6Gb operation Temperature a. OperatingEnvironmental limits Shock and vibration Relative humidityEffective altitude sea level a. Operating Shock Recommended mountingCorrosive environment Air cleanlinessVibration a. Operating-normal Mechanical specifications Mounting configuration dimensions 400GB modelsWeight Pounds 100 grams About self-encrypting drives Controlled accessAdmin SP Data encryptionDrive locking Default passwordRandom number generator RNG Data bandsSupported commands Authenticated firmware downloadPower requirements Cryptographic eraseSSD Physical format address descriptor Bit Byte Defect and error managementDrive internal defects/errors Background Media Scan Drive error recovery proceduresSAS system errors Auto-ReallocationLevels of PI Setting and determining the current Type LevelProtection Information PI Identifying a Protection Information driveInstallation Drive orientationCooling Air flowDrive mounting GroundingSAS features Interface requirementsDual port support Scsi commands supported Supported commandsPersistent Reserve Read Capacity Write Mode Sense data Inquiry dataPage Mode Sense data for 400GB drives 14 1a 00 1aMode Sense data for 200GB drives Mode PagesMode Sense values for 100GB drives Miscellaneous status Miscellaneous operating features and conditionsMiscellaneous features SAS physical interfaceDatum 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 characteristicsIndex NumericsPage RNG See also cooling Page Seagate Technology LLC Americas