Seagate ST100FX0002, ST200FX0002, ST400FX0012 Power dissipation, 400GB models in 6Gb operation

Page 36

7.4Power dissipation

400GB models in 6Gb operation

Typical power dissipation under idle conditions in 6Gb operation is 5.92 watts 20.20 BTUs per hour).

To obtain operating power for typical random write operations, refer to the following I/O rate curve (see Figure 4). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by 3.4123.

Figure 4. 400GB (at 6Gb) DC current and power vs. input/output operations per second

200GB models in 6Gb operation

Typical power dissipation under idle conditions in 6Gb operation is 4.04 watts (13.79 BTUs per hour).

To obtain operating power for typical random write operations, refer to the following I/O rate curve (see Figure 5). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by 3.4123.

Figure 5. 200GB (at 6Gb) DC current and power vs. input/output operations per second

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

Image 36

Contents ST400FX0002ST400FX0012 ST200FX0002 ST100FX0002 Standard Models Self-Encrypting Drive ModelsRevision history Contents Physical/electrical specifications Defect and error managementInstallation 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 Applicable standards and reference documentation StandardsElectromagnetic compatibility Electromagnetic susceptibilityElectromagnetic compliance Electromagnetic compliance for the European UnionAustralian C-Tick Korean KCCReference documents China Restriction of Hazardous Substances RoHS DirectiveStandard features General descriptionMedia description PerformanceReliability Factory-installed options Formatted capacitiesProgrammable drive capacity Thin Provisioning Drive Configuration Performance characteristics Internal drive characteristicsPerformance characteristics Access timeFormat Mode Dcrt Bit IP Bit 400GB 200GB 100GB PerformanceStart/stop time Cache controlCaching write data Reliability specifications Error ratesEndurance Management Reliability and service Preventive maintenanceData Retention Lifetime Endurance ManagementMaximum processing delay Fully-enabled delay 4 S.M.A.R.TControlling S.M.A.R.T Performance impactPredictive failures Thermal monitorState of the drive prior to testing Drive Self Test DSTDST failure definition ImplementationShort and extended tests Short test Function Code 001bExtended test Function Code 010b Log page entriesProduct warranty ShippingProduct repair and return information StoragePhysical/electrical specifications Power specificationsAC power requirements DC power requirements 400GB standard model DC power requirements200GB standard model DC power requirements 100GB standard model DC power requirements General DC power requirement notes Power sequencingConducted noise immunity Current profilesCurrent profiles for 200GB models Power dissipation 400GB models in 6Gb operation200GB models in 6Gb operation Temperature a. Operating Environmental limits100GB models in 6Gb operation Relative humidity Effective altitude sea level a. OperatingShock and vibration Shock Recommended mountingAir cleanliness Vibration a. Operating-normalCorrosive environment Mechanical specifications Mounting configuration dimensions 400GB modelsWeight Pounds 100 grams Controlled access Admin SPAbout self-encrypting drives Data encryptionDefault password Random number generator RNGDrive locking Data bandsAuthenticated firmware download Power requirementsSupported commands Cryptographic eraseDefect and error management Drive internal defects/errorsSSD Physical format address descriptor Bit Byte Drive error recovery procedures SAS system errorsBackground Media Scan Auto-ReallocationSetting and determining the current Type Level Protection Information PILevels of 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 operating features and conditions Miscellaneous featuresMiscellaneous status SAS physical interfaceDatum B Section C C Section a a Physical characteristics Connector requirementsElectrical description Pin descriptionsSignal characteristics PowerSAS transmitters and receivers Ready LED OutSAS-2 Specification compliance LED drive signalDifferential signals General interface characteristicsIndex NumericsPage RNG See also cooling Page Seagate Technology LLC Americas