Seagate ST600MM0026 manual Physical/electrical specifications, PowerChoiceTM power management

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6.0Physical/electrical specifications

This section provides information relating to the physical and electrical characteristics of the drive.

6.1PowerChoiceTM power management

Drives using the load/unload architecture provide programmable power management to tailor systems for per- formance and greater energy efficiency.

The table below lists the supported PowerChoice modes. The further you go down in the table, the more power savings you get. For example, Idle_B mode results in greater power savings than Idle_A mode. Standby modes results in the greatest power savings.

PowerChoice modes

Mode	Description

Idle_A	Reduced electronics

Idle_B	Heads unloaded. Disks spinning at full RPM

Idle_C	Heads unloaded. Disks spinning at reduced RPM

Standby_Y	Heads unloaded. Disks spinning at reduced RPM

Standby_Z	Heads unloaded. Motor stopped (disks not spinning

PowerChoice can be invoked using one of these two methods:

•Power Condition mode page method—Enable and initialize the idle condition timers and/or the standby con- dition timers. The timer values are based on the values set in the Power Condition mode page.

•START STOP UNIT command method—Use the START STOP UNIT command (OPERATION CODE 1Bh). This allows the host to directly transition the drive to any supported PowerChoice mode.

If both the Power Condition mode page and START STOP UNIT command methods are used, the START STOP UNIT command request takes precedence over the Power Condition mode page power control and may disable the idle condition and standby condition timers. The REQUEST SENSE command reports the current PowerChoice state if active and also the method by which the drive entered the PowerChoice state.

When the drive receives a command, all power condition timers are suspended if they were enabled via the Power Condition mode page. Once all outstanding commands are processed, the power condition timers are reinitialized to the values defined in the Power Condition mode page.

20	Savvio 10K.4 FC Product Manual, Rev. A

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Contents Savvio 10K.4 FC ST9600204FC ST9450404FCRevision history Rev. a 03/26/10 Initial releaseContents Installation Seagate Technology support services Savvio 10K.4 FC Product Manual, Rev. a Scope Electromagnetic compatibility Standards, compliance and reference documentsStandards Electromagnetic susceptibilityEuropean Union Restriction of Hazardous Substances RoHS Reference documents Ncits TR-19General description Standard features Media descriptionFormatted capacities PerformanceReliability Programmable drive capacity Factory-installed optionsUser-installed accessories Access time Performance characteristicsInternal drive characteristics Seek performanceStart/stop time Format command execution time minutesGeneral performance characteristics Prefetch/multi-segmented cache controlCache operation Caching 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 Predictive failures Reporting controlDetermining rate Thermal monitorDrive Self Test DST State of the drive prior to testingTemperature Log Page 0Dh DST failure definitionShort test Function Code 001b Invoking DSTShort and extended tests Extended test Function Code 010bProduct warranty AbortPowerChoice modes Physical/electrical specificationsPowerChoiceTM power management AC power requirements DC power requirements DC power requirements for ST9600204FC model 2Gb 4Gb AmpsDC power requirements for ST9450404FC model 2Gb 4Gb Amps Conducted noise immunity General DC power requirement notesPower sequencing Current profiles Savvio 10K.4 FC Product Manual, Rev. a Power dissipation ST9600204FCST9450404FC Relative humidity Temperature a. OperatingEnvironmental limits Shock Effective altitude sea level a. OperatingShock and vibration Package size Packaged/product weight Drop height Recommended mountingAcoustics Air cleanlinessVibration a. Operating-normal Corrosive environmentChina Restriction of Hazardous Substances RoHS Directive Mechanical specifications Mounting configuration dimensionsDrive error recovery procedures Defect and error managementDrive internal defects/errors 77.87 Media Pre-Scan FC-AL system errorsBackground Media Scan Deferred Auto-Reallocation Idle Read After WriteDrive orientation InstallationDrive ID/option selection CoolingDrive mounting Air flowGrounding Link services supported Type of frame FC-AL featuresFibre Channel link service frames Interface requirementsFC Scsi FCP response codes Function name Response code Fibre Channel task management functionsFibre Channel task management responses Fibre 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 nameVerify error recovery page 07h Savvio 10K.4 FC Product Manual, Rev. a Temperature page 0Dh Savvio 10K.4 FC inquiry data Bytes Data hex Mode Sense dataInquiry data Page Mode Data Header 34 65 f8 70 00 00 02 Miscellaneous operating features and conditions Supported Feature or conditionPhysical description Physical characteristicsFC-AL physical interface Pin descriptions Connector requirementsElectrical description FC-SCA pin descriptions Pin Signal name Signal type FC-AL transmitters and receiversPower Fault LED OutMotor start controls Enable port bypass signalsActive LED Out Parallel Enclosure Services Interface ESI 11 SEL6 through SEL0 ID linesAlpa SEL ID Device control codes Signal characteristicsTTL input characteristics FC Differential input LED driver signalsFC Differential output Receive eye diagram Eye diagram data values Link rate GHz Web Seagate Technology support servicesWarranty Support Direct.seagate.com Spp.seagate.com Data Recovery Services Call Center Toll-free Direct dial Technical Support Warranty ServiceData Recovery Services Authorized Service Centers Presales SupportSavvio 10K.4 FC Product Manual, Rev. a Index FCP Flogi Plogi Page See also cooling Page Seagate Technology LLC