Seagate BARRACUDA ST31000640SS user manual

User manual for the device Seagate BARRACUDA ST31000640SS

Device: Seagate BARRACUDA ST31000640SS
Category: Computer Drive
Manufacturer: Seagate
Size: 2.26 MB
Added : 11/30/2013
Number of pages: 82
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Abstracts of contents
Summary of the content on the page No. 1

Product Manual
®
Barracuda ES.2 SAS
ST31000640SS
ST3750630SS
ST3500620SS
100496298
Rev. E
April 2009

Summary of the content on the page No. 2

Copyright © 2008-2009 Seagate Technology LLC. All rights reserved. Printed in U.S.A. Publication number: 100496298, Rev. E, April 2009 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Barracuda ES.2, SeaTools and SeaTDD are either trademarks or registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States and/or other countries. All other trademarks or regist

Summary of the content on the page No. 3

Contents 1.0 Scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Standards, compliance and reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1.1 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . .

Summary of the content on the page No. 4

6.4.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 6.4.3 Effective altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 6.4.4 Shock and vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 6.4.5 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 6.4.6 Air

Summary of the content on the page No. 5

1.0 Scope ® ® This manual describes Seagate Technology LLC, Barracuda ES.2 SAS (Serial Attached SCSI) disk drives. Barracuda ES.2 drives support the SAS Protocol specifications to the extent described in this manual. The SAS Interface Manual (part number 100293071) describes the general SAS characteristics of Barracuda ES.2 and other Seagate SAS drives. Barracuda ES.2 SAS Product Manual, Rev. E 1

Summary of the content on the page No. 6

2 Barracuda ES.2 SAS Product Manual, Rev. E

Summary of the content on the page No. 7

2.0 Standards, compliance and reference documents The drive has been developed as a system peripheral to the highest standards of design and construction. The drive depends on its host equipment to provide adequate power and environment for optimum performance and compliance with applicable industry and governmental regulations. Special attention must be given in the areas of safety, power distribution, shielding, audible noise control, and temperature regulation. In particular, the drive mu

Summary of the content on the page No. 8

2.2 Compliance 2.2.1 Electromagnetic compliance Seagate uses an independent laboratory to confirm compliance with the directives/standards for CE Marking and C-Tick Marking. The drive was tested in a representative system for typical applications. The selected sys- tem represents the most popular characteristics for test platforms. The system configurations include: • Typical current use microprocessor • Keyboard • Monitor/display • Printer • External modem •Mouse Although the test system with

Summary of the content on the page No. 9

2.3 Reference documents SCSI Commands Reference Manual Seagate part number: 100293068 SAS Interface Manual Seagate part number: 100293071 Applicable ANSI SAS documents SFF-8323 3.5” Drive Form Factor with Serial Connector SFF-8460 HSS Backplane Design Guidelines SFF-8470 Multi Lane Copper Connector SFF-8482 SAS Plug Connector ANSI INCITS.xxx Serial Attached SCSI (SAS) Standard (T10/1562-D) ISO/IEC 14776-xxx SCSI Architecture Model-3 (SAM-3) Standard (T10/1561-D) ISO/IEC 14776-xxx SCSI P

Summary of the content on the page No. 10

6 Barracuda ES.2 SAS Product Manual, Rev. E

Summary of the content on the page No. 11

3.0 General description Barracuda ES.2 drives combine Tunneling Magnetoresistive (TMR) heads and a Serial Attached SCSI (SAS) interface to provide high performance, high capacity data storage for a variety of systems including engineer- ing workstations, network servers, mainframes, and supercomputers. The Serial Attached SCSI interface is designed to meet next-generation computing demands for performance, scalability, flexibility and high-density storage requirements. Barracuda ES.2 drives a

Summary of the content on the page No. 12

3.1 Standard features Barracuda ES.2 SAS drives have the following standard features: • Perpendicular recording technology • 1.5 / 3 Gbit Serial Attached SCSI (SAS) interface • Integrated dual port SAS controller • Support for SAS expanders and fanout adapters • Downloadable firmware using the SAS interface • 128 - deep task set (queue) • Supports up to 32 initiators • Jumperless configuration. • User-selectable logical block size (512, 520, 524, or 528 bytes per logical block) • Programmable lo

Summary of the content on the page No. 13

3.5 Formatted capacities Standard OEM models are formatted to 512 bytes per block. The block size is selectable at format time and must be a multiple of 4 bytes. Users having the necessary equipment may modify the data block size before issuing a format command and obtain different formatted capacities than those listed. To provide a stable target capacity environment and at the same time provide users with flexibility if they choose, Seagate recommends product planning in one of two modes: 1

Summary of the content on the page No. 14

10 Barracuda ES.2 SAS Product Manual, Rev. E

Summary of the content on the page No. 15

4.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Bar- racuda ES.2 SAS drives. 4.1 Internal drive characteristics ST31000640SS ST3750630SS ST3500620SS * Drive capacity 1,000 750 500 Gbytes (formatted, rounded value) Read/write data heads 8 6 4 Tracks per inch 150,000 150,000 150,000 TPI Peak bits per inch 1,090k 1,090k 1,090k BPI 2 Areal Density 164 164 164 Gbits/inch Internal data rate 1,287 1,287 1,287 Mbi

Summary of the content on the page No. 16

4.2.2 Format command execution time (minutes) ST31000640SS ST3750630SS ST3500620SS Maximum (with verify) 400 300 200 Maximum (without verify) 200 150 100 Execution time measured from receipt of the last byte of the Command Descriptor Block (CDB) to the request for a Status Byte Transfer to the Initiator (excluding connect/disconnect). 4.2.3 General performance characteristics Sustainable disk transfer rate*: Minimum 56 Mbytes/sec Maximum 116 Mbytes/sec SAS Interface maximum instantaneous trans

Summary of the content on the page No. 17

4.4 Prefetch/multi-segmented cache control The drive provides a prefetch (read look-ahead) and multi-segmented cache control algorithms that in many cases can enhance system performance. Cache refers to the drive buffer storage space when it is used in cache operations. To select this feature, the host sends the Mode Select command with the proper values in the applicable bytes in page 08h. Prefetch and cache operations are independent features from the standpoint that each is enabled and di

Summary of the content on the page No. 18

If read caching is enabled (RCD=0), then data written to the medium is retained in the cache to be made avail- able for future read cache hits. The same buffer space and segmentation is used as set up for read functions. The buffer segmentation scheme is set up or changed independently, having nothing to do with the state of RCD. When a write command is issued, if RCD=0, the cache is first checked to see if any logical blocks that are to be written are already stored in the cache from a previ

Summary of the content on the page No. 19

5.0 Reliability specifications The following reliability specifications assume correct host and drive operational interface, including all inter- face timings, power supply voltages, environmental requirements and drive mounting constraints. 8 Seek error rate: Less than 10 errors in 10 seeks 1 Read Error Rates 12 Recovered Data Less than 10 errors in 10 bits transferred (OEM default settings) 15 Unrecovered Data Less than 1 sector in 10 bits transferred 21 Miscorrected Data Less than 1 sector

Summary of the content on the page No. 20

5.1.3 Seek errors A seek error is defined as a failure of the drive to position the heads to the addressed track. After detecting an initial seek error, the drive automatically performs an error recovery process. If the error recovery process fails, a seek positioning error (Error code = 15h or 02h) will be reported with a Hardware error (04h) in the Sense 8 Key. Recoverable seek errors are specified at Less than 10 errors in 10 seeks. Unrecoverable seek errors (Sense Key = 04h) are clas


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