Seagate ST31000426SS manual Physical/electrical specifications, PowerChoiceTM power management

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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, Idle2 mode results in greater power savings than Idle1 mode. Standby mode 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.

 

Recovery requires the NOTIFY (Enable Spinup) command.

 

 

Standby_Z

Heads unloaded. Motor stopped (disks not spinning)

 

Recovery requires the NOTIFY (Enable Spinup) command.

 

 

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.

Constellation ES Series SAS Product Manual, Rev. E

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Contents SED Fips 140-2 Models ST32000446SS ST31000426SS ST3500416SSStandard Models Self-Encrypting Drive Models Revision history Contents Installation Defect and error managementAbout Fips About self-encrypting drives Interface requirementsPower Constellation ES Series SAS Product Manual, Rev. E List of Figures Constellation ES Series SAS Product Manual, Rev. E Seagate Online Support and Services Seagate Technology support servicesScope Standards Applicable standards and reference documentationElectromagnetic compatibility Electromagnetic susceptibilityElectromagnetic compliance for the European Union Electromagnetic complianceAustralian C-Tick Korean KCCEuropean Union Restriction of Hazardous Substances RoHS Reference documentsGeneral description Media description Standard featuresReliability PerformanceFormatted capacities Programmable drive capacityFactory-installed options Internal drive characteristics Performance characteristicsSeek performance characteristics Access timeStart/stop time General performance characteristicsCache operation Prefetch/multi-segmented cache controlPrefetch operation Caching write dataError rates Reliability specificationsRecoverable Errors Unrecoverable ErrorsSeek errors Reliability and serviceInterface errors Preventive maintenanceControlling S.M.A.R.T 4 S.M.A.R.TPerformance impact Reporting controlThermal monitor Temperature Log Page 0Dh Parameter Code DescriptionPredictive failures Drive Self Test DST State of the drive prior to testingDST failure definition ImplementationShort test Function Code 001b Short and extended testsExtended test Function Code 010b Log page entriesProduct repair and return information Product warrantyShipping PowerChoice modes Physical/electrical specificationsPowerChoiceTM power management DC power requirements AC power requirementsConstellation ES Series SAS Product Manual, Rev. E Constellation ES Series SAS Product Manual, Rev. E Page Conducted noise immunity General DC power requirement notesPower sequencing TB model current profiles Current profilesConstellation ES Series SAS Product Manual, Rev. E GB model current profiles 2TB models in 3Gb operation Power dissipation2TB models in 6Gb operation 1TB models in 3Gb operation 1TB models in 6Gb operation Os per Second ST3500414SS CURRENT/POWER vs Throughput SAS 3.0GB500GB models in 3Gb operation 500GB models in 6Gb operation Relative humidity Temperature a. OperatingEnvironmental limits Shock Effective altitude sea level a. OperatingShock and vibration Recommended mounting Vibration a. Operating-normal Air cleanlinessAcoustics Corrosive environmentElectromagnetic susceptibility Mounting configuration dimensions Mechanical specificationsLevel 2 security About FipsPurpose Admin SP Controlled accessAbout self-encrypting drives Data encryptionRandom number generator RNG Default passwordDrive locking Data bandsPower requirements Authenticated firmware downloadSupported commands Cryptographic eraseDrive 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 Drive orientation InstallationAir flow CoolingGrounding Drive mountingInterface requirements SAS featuresDual port support Supported commands Scsi commands supportedSupported commands Supported commands Supported commands Constellation ES inquiry data Mode Sense dataInquiry data Page Mode Sense data changeable and default values for 2TB drives Mode Sense data changeable and default values for 1TB drives 3a 38 60 30 00 00 02 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 descriptionsPower Signal characteristicsSAS transmitters and receivers Ready LED OutLED drive signal SAS-2 Specification ComplianceDifferential signals General interface characteristicsNumerics IndexKCC Msid Mtbf See also cooling Page Constellation ES Series SAS Product Manual, Rev. E Page Seagate Technology LLC

ST3500414SS, ST3500415SS, ST32000445SS, ST31000425SS, ST32000446SS specifications

Seagate, a leader in data storage solutions, has introduced a range of high-capacity and reliable hard drives designed for enterprise environments, including the Seagate ST31000424SS, ST3500416SS, ST31000426SS, ST32000444SS, and ST32000446SS. Each of these models is built with an emphasis on performance, endurance, and advanced data protection technologies, catering to mission-critical applications and data-intensive workloads.

The ST31000424SS is a 1TB drive designed for servers and data centers. It offers a 7,200 RPM spindle speed and a 6 Gb/s SATA interface, ensuring quick data access and transfer rates. With a 64MB cache buffer, the ST31000424SS provides enhanced read/write performance, making it suitable for applications that demand quick responses from the storage subsystem.

Similarly, the ST3500416SS is a high-capacity 500GB model, also spinning at 7,200 RPM with a 6 Gb/s SATA interface. This drive is ideal for mid-range servers and enterprise storage, providing an excellent balance of performance and capacity for users looking to optimize their storage efficiency while maintaining lower power consumption.

The ST31000426SS expands the capacity to 1TB while retaining the same reliability and performance characteristics as its counterparts. Its robust design ensures reliability in multi-drive environments, making it an appealing choice for virtualization and database applications, where performance is critical.

The ST32000444SS and ST32000446SS represent Seagate's commitment to higher capacities, with both offering 2TB of storage. They both feature 7,200 RPM speeds, 6 Gb/s SATA interfaces, and 64MB cache buffers, catering to high-demand environments such as cloud storage and data analytics. The drives also integrate advanced error recovery and data integrity features, ensuring the protection of sensitive data, which is vital for enterprise users.

Each model supports Seagate's PowerChoice technology, which optimizes power consumption without sacrificing performance, enhancing energy efficiency in modern data centers. With a broad range of capacities and performance levels, these Seagate drives provide scalable solutions tailored to meet the robust demands of today’s enterprise applications, ensuring reliability and performance for critical data operations.
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