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Seagate ST9450404SS manual Physical/electrical specifications, PowerChoiceTM power management

Models: ST9600004SS ST9600104SS ST9450204SS ST9450304SS ST9450404SS ST9600204SS

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7.0Physical/electrical specifications

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

7.1PowerChoiceTM 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)

PowerChoiceTM 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.

Savvio 10K.4 SAS Product Manual, Rev. E

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Seagate ST9450404SS, ST9600204SS Physical/electrical specifications, PowerChoiceTM power management, PowerChoice modes

Contents

ST9600004SS ST9450204SS ST9600204SSST9600104SS ST9450404SSST9450304SSStandard Models Self-Encrypting Drive Models SED Fips 140-2 Models Revision history Contents Installation Defect and error managementAbout Fips About self-encrypting drives Interface requirementsPage Savvio 10K.4 SAS Product Manual, Rev. E List of Figures Page Seagate Online Support and Services Seagate Technology support services Scope Standards Applicable standards and reference documentationElectromagnetic compatibility Electromagnetic susceptibility Electromagnetic compliance for the European Union Electromagnetic complianceAustralian C-Tick Korean KCC European Union Restriction of Hazardous Substances RoHS Reference documents General description Media description Standard features Reliability PerformanceFormatted capacities Programmable drive capacity Factory-installed options Internal drive characteristics Performance characteristicsSeek performance characteristics Access time Start/stop time General performance characteristics Caching write data Prefetch/multi-segmented cache controlCache operation Prefetch operation Error rates Reliability specificationsRecoverable Errors Unrecoverable Errors Seek errors Reliability and serviceInterface errors Preventive maintenance Controlling S.M.A.R.T 4 S.M.A.R.TPerformance impact Reporting control Thermal monitor Temperature Log Page 0Dh Parameter Code DescriptionPredictive failures Drive Self Test DST State of the drive prior to testingDST failure definition Implementation Short test Function Code 001b Short and extended testsExtended test Function Code 010b Log page entries Product repair and return information Product warrantyShipping PowerChoice modes Physical/electrical specificationsPowerChoiceTM power management DC power requirements AC power requirementsPage 450GB standard model DC power requirements 0Gb mode Amps Conducted noise immunity General DC power requirement notesPower sequencing Current profiles for 600GB models Current profiles Current profiles for 450GB models GB models in 3Gb operation Power dissipation 600GB models in 6Gb operation 450GB models in 3Gb operation 450GB models in 6Gb operation Temperature a. OperatingEnvironmental limits Shock and vibration Relative humidityEffective altitude sea level a. Operating Shock Recommended mounting Corrosive environment Air cleanlinessVibration a. Operating-normal Acoustics Mounting configuration dimensions Mechanical specifications Level 2 security About FipsPurpose Admin SP Controlled accessAbout self-encrypting drives Data encryption Random number generator RNG Default passwordDrive locking Data bands Power requirements Authenticated firmware downloadSupported commands Cryptographic erase Drive error recovery procedures Defect and error managementDrive internal defects/errors SAS system errors Deferred Auto-Reallocation Background Media ScanMedia Pre-Scan Idle Read After Write Setting and determining the current Type LevelProtection Information PI Levels of PI Identifying a Protection Information drive Drive orientation Installation Air flow Cooling Grounding Drive mounting Interface requirements SAS features Dual port support Supported commands Scsi commands supported Supported commands Supported commands Supported commands Savvio inquiry data Mode Sense dataInquiry data Page Mode Pages Mode Sense data for 600GB drives Mode Sense values for 450GB drives Miscellaneous status Miscellaneous operating features and conditionsMiscellaneous features SAS physical interface Datum B Section C C Section a a Connector requirements Physical characteristicsElectrical description Pin descriptions Power Signal characteristicsSAS transmitters and receivers Ready LED Out LED drive signal SAS-2 Specification complianceDifferential signals General interface characteristics Numerics Index KCC Msid Mtbf See also cooling Page Savvio 10K.4 SAS Product Manual, Rev. E Page Seagate Technology LLC