Seagate ST973401SS, ST936701SS manual Dual port support

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9.2Dual port support

Savvio SAS drives have two independent ports. These ports may be connected in the same or different SCSI domains. Each drive port has a unique SAS address.

The two ports run at the same link rate. The first port to successfully complete speed negotiation sets the link rate support by both ports. When the second port participates in speed negotiation, it indicates the only sup- ported speed is the speed selected by the first port. If the first port to complete speed negotiation looses sync before the second port completes speed negotiation, both ports revert back to the power on condition of allow- ing either link rate (1.5 or 3.0 Gbits/sec).

Subject to buffer availability, the Savvio drives support:

•Concurrent port transfers—The drive supports receiving COMMAND, TASK management transfers on both ports at the same time.

•Full duplex—The drive supports sending XFER_RDY, DATA and RESPONSE transfers while receiving frames on both ports.

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Savvio SAS Product Manual, Rev. D

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Contents Savvio SAS ST973401SS ST936701SSPage Contents Defect and error management InstallationSeagate Technology support services Interface requirementsList of Figures Page Scope Savvio family disc driveSavvio SAS Product Manual, Rev. D Applicable standards and reference documentation StandardsElectromagnetic compatibility Electromagnetic susceptibilityElectromagnetic compliance Electromagnetic compliance for the European UnionAustralian C-Tick Korean MICReference documents SAS Interface ManualSavvio SAS Product Manual, Rev. D General description Media description Standard featuresPerformance Factory-installed accessories ReliabilityFormatted capacities Programmable drive capacityFactory-installed options User-installed accessoriesPerformance characteristics Internal drive characteristicsSeek performance characteristics Access timeFormat command execution time for 512-byte sectors minutes General performance characteristicsPrefetch/multi-segmented cache control Start/stop timeCache operation Caching write data Prefetch operation Savvio SAS Product Manual, Rev. D Reliability specifications Error ratesRecoverable Errors Unrecoverable ErrorsReliability and service Seek errorsInterface errors Preventive maintenanceHot plugging the drive 4 S.M.A.R.TControlling S.M.A.R.T Performance impactReporting control Determining ratePredictive failures Thermal monitorTemperature Log Page 0Dh Parameter Code Description Drive Self Test DSTDST failure definition ImplementationState of the drive prior to testing Invoking DSTShort and extended tests Short test Function Code 001bProduct warranty Log page entriesAbort ShippingProduct repair and return information Physical/electrical specifications AC power requirementsDC power requirements ST973401SS DC power requirementsGeneral DC power requirement notes ST936701SS DC power requirementsST936701SS Gbit mode Amps Power sequencing Conducted noise immunityCurrent profiles +5V +12VTypical ST973401SS drive +12V current profile Typical ST936701SS drive +12V current profile ST973401SS in 3 Gbit operation Power dissipationST973401SS in 1.5 Gbit operation ST936701SS in 3 Gbit operation ST936701SS in 1.5 Gbit operationEnvironmental limits TemperatureRelative humidity Shock and vibration Effective altitude sea levelShock Package size Packaged/product weight Drop height Recommended mountingVibration Air cleanlinessCorrosive environment Acoustics Mechanical specifications Mounting configuration dimensionsSavvio SAS Product Manual, Rev. D Drive internal defects/errors Defect and error managementDrive error recovery procedures SAS system errors Installation Drive orientationCooling Air flowDrive mounting GroundingSavvio SAS Product Manual, Rev. D SAS features Interface requirementsDual port support Commands supported by Savvio SAS family drive Scsi commands supportedCommand name Command code Supported Commands supported by Savvio SAS family drive Commands supported by Savvio SAS family drive Commands supported by Savvio SAS family drive Mode Sense data Inquiry dataSavvio inquiry data Bytes Data hexPage DEF CHG Savvio SAS Product Manual, Rev. D Miscellaneous operating features and conditions Miscellaneous featuresSupported Feature or condition Miscellaneous statusSAS physical interface Datum B Section C C Section a a Physical characteristics Connector requirementsElectrical description Pin descriptionsSAS pin descriptions Pin Signal name Signal typeSAS transmitters and receivers Signal characteristics General interface characteristics Characteristic Units GbpsEye masks Eye masks overview Receive eye maskJitter tolerance masks Reveive tolerance eye maskPeak-to SinusoidalJitter Frequency in kHzTransmitter signal characteristics Signal characteristica Units GbpsReceiver signal characteristics Signal characteristic Units GbpsMaximum allowable jitter Gbps m, n Deterministic jitterqImpedance specifications Receiver jitter toleranceCompliant jitter test pattern Cjtpat Impedance requirements Sheet 1Impedance requirements Sheet 2 Transmitter characteristicsElectrical TxRx connections = -5,437dB Tctf Receiver characteristics ISI loss example at 1.5 GbpsSavvio SAS Product Manual, Rev. D Seagate Technology support services InternetPresales Support Technical SupportData Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Index NumericsPage SAS See also cooling
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ST936701SS, ST973401SS specifications

The Seagate ST936701SS and ST973401SS are high-performance enterprise hard drives designed for optimal data storage solutions in demanding environments. Both models belong to Seagate's Savvio series, which is renowned for its reliability and efficiency. These drives are tailored for critical applications such as database management, data warehousing, and online transaction processing.

The ST936701SS comes with a storage capacity of 36.4 GB, while the ST973401SS offers a larger capacity of 73.4 GB. This variance allows users to choose the drive that best suits their storage needs without compromising performance. Both drives utilize a 2.5-inch form factor, making them compact and suitable for high-density storage configurations.

A key feature of these drives is their impressive rotational speed of 10,000 RPM, which enhances data access times and improves overall system responsiveness. This speed allows for reduced latency and faster data transfer rates, critical for applications that require quick retrieval of large datasets.

In terms of technology, these drives utilize the Serial Attached SCSI (SAS) interface, which is favored in enterprise settings for its reliability and speed. SAS provides better performance than traditional SATA drives, particularly when dealing with high workloads, as it supports multiple concurrent connections and higher data throughput.

The ST936701SS and ST973401SS are also equipped with advanced features such as Seagate's Native Command Queuing (NCQ), which optimizes the order in which read and write commands are executed. This results in improved performance under multi-tasking conditions, essential for enterprise servers managing multiple requests simultaneously.

Additionally, both drives incorporate features aimed at enhancing data integrity and reliability. They support End-to-End Data Protection and are designed to endure the rigors of continuous operation, with MTBF (Mean Time Between Failures) ratings that bolster their reputation for durability.

Energy efficiency is another notable characteristic, as both drives are designed to reduce power consumption without sacrificing performance. This is particularly important in enterprise environments where power management contributes to lower operational costs.

In conclusion, the Seagate ST936701SS and ST973401SS drives are robust, reliable storage solutions tailored for enterprise applications. With their high performance, advanced technology features, and capacity options, they provide organizations with the scalability and efficiency required in today’s data-driven landscape. Whether it's for critical data management tasks or high-access applications, these drives stand out as a solid choice for any enterprise storage strategy.
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