Seagate ST973402SS, ST9146802SS manual Dual port support

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9.2Dual port support

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 10K.2 SAS Product Manual, Rev. B

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Contents Savvio 10K.2 SAS ST9146802SS ST973402SSPage Savvio 10K.2 SAS October Revision status summary sheet Rev. A06/23/06 Initial releasePage Contents 4.0 Performance characteristics5.0 Reliability specifications 6.0 Physical/electrical specifications7.0 Defect and error management 8.0 Installation10.0 Seagate Technology support services 9.0 Interface requirementsList of Figures Page 1.0 Scope Figure 1. Savvio 10K.2 SAS disc driveSavvio 10K.2 SAS Product Manual, Rev. B 2.0 Applicable standards and reference documentation 2.1 Standards2.1.1 Electromagnetic compatibility 2.1.1.1 Electromagnetic susceptibility2.1.2 Electromagnetic compliance Electromagnetic compliance for the European UnionAustralian C-Tick Korean MIC2.2 Reference documents Savvio 10K.2 SAS Installation GuideSCSI Commands Reference Manual Specification for Acoustic Test Requirement and ProceduresSavvio 10K.2 SAS Product Manual, Rev. B 3.0 General description 3.3 Performance 3.1 Standard features3.2 Media description 3.7 Factory-installed accessories 3.4 Reliability3.5 Formatted capacities 3.6 Programmable drive capacity3.8 Factory-installed options 4.0 Performance characteristics 4.1 Internal drive characteristics4.2 Seek performance characteristics 4.2.1 Access time4.2.3 4.2.2 Format command execution time for 512-byte sectors minutesGeneral performance characteristics 4.5 Cache operation 4.3 Start/stop time4.4 Prefetch/multi-segmented cache control 4.5.1 Caching write data 4.5.2 Prefetch operationSavvio 10K.2 SAS Product Manual, Rev. B Savvio 10K.2 SAS Product Manual, Rev. B 5.0 Reliability specifications 5.1 Error rates5.1.1 Recoverable Errors 5.1.2 Unrecoverable Errors5.2 Reliability and service 5.1.3 Seek errors5.1.4 Interface errors 5.2.2 Preventive maintenanceFully-enabled delay 5.2.4 S.M.A.R.TControlling S.M.A.R.T Performance impactReporting control Determining ratePredictive failures 5.2.5 Thermal monitorTable 11 Temperature Log Page 0Dh Parameter CodeDescription 5.2.6 Drive Self Test DST5.2.6.2.1 State of the drive prior to testing 5.2.6.2.2 Invoking DST5.2.6.2.3 Short and extended tests Short test Function Code 001b5.2.7 Product warranty 5.2.6.2.4 Log page entries5.2.6.2.5 Abort ShippingProduct repair and return information 6.0 Physical/electrical specifications 6.1 AC power requirements6.2 DC power requirements Table 12 ST9146802SS DC power requirementsTable 13 ST973402SS DC power requirements General DC power requirement notes6.2.2 Power sequencing 6.2.1 Conducted noise immunity6.2.3 Current profiles +12VFigure 3. ST973402SS current profile ST973402SS in 3 Gbit operation 6.3 Power dissipationST9146802SS in 3 Gbit operation 6.4 Environmental limits 6.4.1 Temperature6.4.2 Relative humidity 6.4.3 Effective altitude sea level6.4.4 Shock and vibration 6.4.4.1 ShockPackaged/product weight Package sizeDrop height Figure 7. Recommended mounting6.4.6 Corrosive environment 6.4.5 Air cleanliness6.4.4.2 Vibration 6.4.7 Acoustics 6.4.8 Electromagnetic susceptibility6.5 Mechanical specifications Figure 8. Mounting configuration dimensionsSavvio 10K.2 SAS Product Manual, Rev. B 7.2 Drive error recovery procedures 7.0 Defect and error management7.1 Drive internal defects/errors Savvio 10K.2 SAS Product Manual, Rev. B 7.3 SAS system errors 7.4 Background Media ScanTable 14 Read and write retry count maximum recovery times Maximum recovery time per7.7 Idle Read After Write 7.5 Media Pre-Scan7.6 Deferred Auto-Reallocation 8.0 Installation 8.1 Drive orientation8.2 Cooling Figure 10. Air flow8.3 Drive mounting 8.4 GroundingSavvio 10K.2 SAS Product Manual, Rev. B 9.1 SAS features 9.0 Interface requirements9.1.1 task management functions Table 15 SAS task management functions supported9.2 Dual port support 9.3 SCSI commands supported Table 17 Commands supported by Savvio SAS family driveTable 17 Commands supported by Savvio SAS family drive continued Table 17 Commands supported by Savvio SAS family drive continued Table 17 Commands supported by Savvio SAS family drive continued 9.3.1 Inquiry data Savvio inquiry data9.3.2 Mode Sense data Bytes4. Changeable values CHG = Changeable bits indicates if default value is changeable3. Current values MODE DATA HEADER 03 fa 00 10 00 00 00 BLOCK DESCRIPTOR Savvio 10K.2 SAS Product Manual, Rev. B Miscellaneous status 9.4 Miscellaneous operating features and conditionsMiscellaneous features 9.4.1 SAS physical interface Figure 11. Physical interfaceFigure 12. SAS device plug dimensions C OF DATUM B LFigure 13. SAS device plug dimensions detail 9.4.2 Physical characteristics 9.4.3 Connector requirements9.4.4 Electrical description 9.4.5 Pin descriptions9.5 Signal characteristics 9.4.7 Power9.4.6 SAS transmitters and receivers 9.5.1 Ready LED OutLED drive signal 9.5.2 Differential signalsTable 26 General interface characteristics 9.5.2.1 Eye masks 9.5.2.1.1 Eye masks overview9.5.2.1.2 Receive eye mask 9.5.2.1.3 Jitter tolerance masksFigure 15. Receive eye mask Figure 16. Reveive tolerance eye maskX2OP - 0, 5xadditional sinusoidal jitter - X1OP tionPeak-to sinusoidal9.5.2.2 Transmitter signal characteristics Table 27 Transmitter signal characteristics9.5.2.3 Receiver signal characteristics Table 28 Receiver signal characteristics9.5.2.3.1 Jitter Table 29 Maximum allowable jitter9.5.2.3.4 Impedance specifications 9.5.2.3.2 Receiver jitter toleranceTable 30 Receiver jitter tolerance 9.5.2.3.3 Compliant jitter test pattern CJTPATR0 RR 9.5.2.4.1 Transmitter characteristicsTable 31 Impedance requirements Sheet 2 of 9.5.2.4 Electrical TxRx connections= -5, 437dB = -10, 884dBSAS internal connector Tx+ TCTF Tx10 nF Probe9.5.2.5 Receiver characteristics Figure 21. ISI loss example at 1.5 Gbps10.0 Seagate Technology support services Online servicesSeagate Service Centers Customer Service OperationsUSA/Canada/Latin America support services Seagate Service Centers European support servicesData Recovery Services Authorized Service CentersAfrica/Middle East support services Asia/Pacific support servicesFAX services-All Europe toll call Toll-free support numbersSeagate Service Centers Index NumericsPage Page See also cooling Page Seagate Technology LLC
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ST973402SS, ST9146802SS specifications

The Seagate ST973402SS and ST9146802SS are high-performance, enterprise-grade hard drives designed to meet the demanding needs of data-intensive applications. These drives are part of Seagate's Savvio and Barracuda product lines, aimed specifically at businesses and institutions requiring reliability, speed, and efficiency in storage solutions.

The ST973402SS is a 73GB, 2.5-inch hard drive, while the ST9146802SS offers a larger capacity of 146GB. Both models utilize a 10,000 RPM spindle speed, which significantly enhances their ability to handle fast data read and write operations. This speed ensures reduced latency and improved overall performance, making them ideal for environments where rapid access to data is crucial.

One of the standout features of these drives is their support for Serial Attached SCSI (SAS) interface. SAS technology provides a point-to-point connection, which allows for increased data transfer rates compared to traditional SATA drives. The ST973402SS and ST9146802SS are capable of transferring data at speeds of up to 600 MB/s, facilitating efficient data transfers in enterprise systems.

In terms of reliability, both models offer advanced features designed to improve data integrity and durability. They are built to withstand high workloads, with an annualized workload rate of up to 550 TB per year. This makes them well-suited for applications like databases and transactional storage, where sustained performance is required. Additionally, the drives feature Seagate’s PowerFit technology, which optimizes performance while minimizing power consumption.

To enhance data security, the drives come equipped with self-encrypting technology, ensuring that sensitive data is protected through hardware-based encryption. This is particularly important in environments where data breaches can lead to significant operational impacts.

The drives are also designed to operate efficiently in terms of thermal management, featuring robust heat dissipation capabilities. This helps to maintain optimal performance levels while prolonging the lifespan of the drives.

Overall, the Seagate ST973402SS and ST9146802SS are robust and reliable hard drives that cater to the needs of enterprise environments, combining high capacity, exceptional speed, advanced security features, and energy efficiency to help businesses maintain and manage large volumes of data effectively. With their proven performance and innovative technologies, these drives are well-equipped to support a wide range of applications in modern data centers.
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