Seagate ST3600002SS, ST3450802SS manual Cooling, Air flow

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8.2Cooling

The host enclosure must dissipate heat from the drive. You should confirm that the host enclosure is designed to ensure that the drive operates within the temperature measurement guidelines described in Section 6.4.1. In some cases, forced airflow may be required to keep temperatures at or below the temperatures specified in Section 6.4.1.

If forced air is necessary, possible air-flow patterns are shown in Figure 9. The air-flow patterns are created by 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 guidelines of Section 6.4.1 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 9. Air flow

Above unit

Under unit

Cheetah NS 10K.2 SAS Product Manual, Rev. C

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Contents ST3600002SS ST3450802SS Cheetah NS 10K.2 SASPage Contents Interface requirements Defect and error managementInstallation Seagate Technology support servicesScope Electromagnetic susceptibility Standards, compliance and reference documentsStandards Electromagnetic compatibilityCompliance Reference documents General description Reliability Standard featuresMedia description PerformanceFactory-installed options Formatted capacitiesProgrammable drive capacity Seek performance Performance characteristicsInternal drive characteristics Access timeFormat command execution time minutes General performance characteristicsStart/stop time Prefetch/multi-segmented cache control Cache operationCaching write data Prefetch operation Unrecoverable Errors Reliability specificationsError rates Recoverable ErrorsHot plugging the drive Reliability and serviceInterface errors Preventive maintenanceReporting control 4 S.M.A.R.TControlling S.M.A.R.T Performance impactDrive Self Test DST Temperature Log Page 0Dh Parameter Code DescriptionPredictive failures Thermal monitorImplementation DST failure definitionProduct warranty Short test Function Code 001bExtended test Function Code 010b Shipping ST3600002SS DC power requirements Physical/electrical specificationsAC power requirements DC power requirementsGeneral DC power requirement notes ST3450802SS DC power requirementsPower sequencing Conducted noise immunityCurrent profiles Typical ST3600002SS drive +5V and +12V current profiles Power dissipation ST3600002SSST3450802SS Environmental limits Temperature a. OperatingShock Relative humidityEffective altitude sea level a. Operating Shock and vibrationRecommended mounting Package size Packaged/product weight Drop heightCorrosive environment Air cleanlinessVibration a. Operating-normal AcousticsChina Restriction of Hazardous Substances RoHS Directive Physical dimensions Mechanical specificationsDefect and error management Drive internal defects/errorsDrive error recovery procedures 77.81 Deferred Auto-Reallocation SAS system errorsBackground Media Scan Media Pre-ScanIdle Read After Write Drive orientation InstallationAir flow CoolingGrounding Drive mountingInterface requirements SAS featuresDual port support Commands supported by Cheetah NS 10K.2 SAS family drives Scsi commands supportedCommands supported by Cheetah NS 10K.2 SAS family drives Commands supported by Cheetah NS 10K.2 SAS family drives Commands supported by Cheetah NS 10K.2 SAS family drives Inquiry data 2Mode Sense dataBytes Data hex Page Mode Pages 2.1 ST3600002SS Mode Sense data2.2 ST3450802SS Mode Sense data Miscellaneous status Miscellaneous operating features and conditionsMiscellaneous features Supported Feature or conditionSAS physical interface Datum B Connector requirements Physical characteristicsSAS pin descriptions Pin Signal name Signal typeElectrical description Pin descriptionsReady LED Out Signal characteristicsPower SAS transmitters and receiversEye masks Eye masks overview LED drive signalDifferential signals General interface characteristicsReceive eye mask X2OP 0, 5xadditional sinusoidal jitter X1OP Signal characteristica Units 5Gb/s 0Gb/s Transmitter signal characteristics5Gb/s m, n 0Gb/s m, n Deterministic jitterq Receiver signal characteristicsSignal characteristic Units 5Gb/s 0Gb/s Maximum allowable jitterJitterh Receiver jitter toleranceImpedance requirements Sheet 1 5Gb/sa 0Gb/sa Sinusoidal Deterministic TotalElectrical TxRx connections Impedance requirements Sheet 2= -5, 437dB Shows the zero-length test load SAS-2 Specification compliance Receiver characteristicsAdditional information Seagate Technology support services Presales SupportTechnical Support Warranty Service Data Recovery Services Authorized Service CentersData Recovery Services Call Center Toll-free Direct dial Index Page SAS See also cooling Page Seagate Technology LLC

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