Manual do usuário Seagate Cheetah ST3450757SS

Manual para o dispositivo Seagate Cheetah ST3450757SS

Dispositivo: Seagate Cheetah ST3450757SS
Categoria: Unidade de disco
Fabricante: Seagate
Tamanho: 0.77 MB
Data de adição: 6/9/2013
Número de páginas: 62
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Resumos

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Resumos do conteúdo
Resumo do conteúdo contido na página número 1

Product Manual
®
Cheetah 15K.7 SAS
Standard models Self-Encrypting Drive models
ST3600057SS ST3600957SS
ST3450857SS ST3450757SS
ST3300657SS ST3300557SS
SED FIPS 140-2 models
ST3600857SS
ST3450657SS
ST3300457SS
100516226
Rev. F
December 2012

Resumo do conteúdo contido na página número 2

© 2012 Seagate Technology LLC. All rights reserved. Publication number: 100516226, Rev. F December 2012 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Cheetah and SeaTools are either trademarks or registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States and/or other countries. The FIPS logo is a certification mark of NIST, which does not imply produc

Resumo do conteúdo contido na página número 3

CONTENTS SEAGATE® TECHNOLOGY SUPPORT SERVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.0 SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.0 STANDARDS, COMPLIANCE AND REFERENCE DOCUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 STANDARDS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Resumo do conteúdo contido na página número 4

CONTENTS 6.2.2 Power sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 6.2.3 Current profiles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 6.3 POWER DISSIPATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 6.4 ENVIRONMENTAL LIMITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Resumo do conteúdo contido na página número 5

CONTENTS 11.4 MISCELLANEOUS OPERATING FEATURES AND CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 11.4.1 SAS physical interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 11.4.2 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 11.4.3 Connector requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 11.4.4 Electrical des

Resumo do conteúdo contido na página número 6

® Seagate Technology Support Services For information regarding online support and services, visit http://www.seagate.com/www/en-us/about/contact_us/ Available services include: • Presales & Technical support • Global Support Services telephone numbers & business hours • Authorized Service Centers For information regarding Warranty Support, visit http://www.seagate.com/support/warranty-and-returns/ For information regarding data recovery services, visit http://www.seagate.com/services-software/d

Resumo do conteúdo contido na página número 7

1.0 SCOPE ® ® This manual describes Seagate Technology LLC, Cheetah 15K.7 SAS (Serial Attached SCSI) disk drives. Cheetah 15K.7 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 Cheetah 15K.7 and other Seagate SAS drives. The Self-Encrypting Drive (SED) Users Guide, part number 100515636 describes the interface, general operation and security features available

Resumo do conteúdo contido na página número 8

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

Resumo do conteúdo contido na página número 9

Australian C-Tick If this model has the C-Tick Marking it complies with the Australia/New Zealand Standard AS/NZS3548 1995 and meets the Electromagnetic Compatibility (EMC) Framework requirements of Australia’s Spectrum Management Agency (SMA). Korean KCC If this model has the Korean Communications Commission (KCC) logo, it complies with paragraph 1 of Article 11 of the Electromagnetic Compatibility (EMC) Control Regulation and meets the Electromagnetic Compatibility Framework requirements

Resumo do conteúdo contido na página número 10

3.0 GENERAL DESCRIPTION Cheetah 15K.7 drives provide high performance, high capacity data storage for a variety of systems including engineering 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. Cheetah 15K.7 drives support the Serial Attached SCSI Protocol as described in the ANSI specifications, this document

Resumo do conteúdo contido na página número 11

3.1 STANDARD FEATURES Cheetah 15K.7 drives have the following standard features: • 1.5 / 3 / 6 Gbit Serial Attached SCSI (SAS) interface • Integrated dual port SAS controller supporting the SCSI protocol • Support for SAS expanders and fanout adapters • Firmware downloadable using the SAS interface • 128 - deep task set (queue) • Supports up to 32 initiators • Jumperless configuration. • User-selectable logical block size (512, 520, or 528 bytes per logical block) • Programmable logical block

Resumo do conteúdo contido na página número 12

3.4 RELIABILITY • 1,600,000 hour MTBF (Annualized Failure Rate (AFR) of 0.55%) • Incorporates industry-standard Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.) • 5-year warranty 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 one of the supported sizes listed in the table below. Seagate designs specify capacity points at certain block sizes that Seagate guarantees current and future pro

Resumo do conteúdo contido na página número 13

4.0 PERFORMANCE CHARACTERISTICS This section provides detailed information concerning performance-related characteristics and features of Cheetah 15K.7 drives. 4.1 INTERNAL DRIVE CHARACTERISTICS ST3600057SS ST3450857SS ST3300657SS ST3600957SS ST3450757SS ST3300557SS ST3600857SS ST3450657SS ST3300457SS * Drive capacity 600 450 300 Gbytes (formatted, rounded off value) Read/write data heads 8 6 4 Tracks per inch 165,000 165,000 165,000 TPI Peak bits per inch 1,361 1,361 1,361 KBPI 2 Areal D

Resumo do conteúdo contido na página número 14

4.2.3 General performance characteristics Sustainable disk transfer rate*: Minimum 122 Mbytes/sec (typical) Maximum 204 Mbytes/sec (typical) SAS Interface maximum instantaneous transfer rate 600 Mbytes/sec* per port Logical block sizes Default is 512-byte data blocks Sector sizes variable to 512, 520, and 528 kbytes. Read/write consecutive sectors on a track Yes Flaw reallocation performance impact (for flaws reallocated at format time using Negligible the spare sectors per sparing zone real

Resumo do conteúdo contido na página número 15

4.5 CACHE OPERATION Note. Refer to the SAS Interface Manual for more detail concerning the cache bits. Of the 16 Mbytes physical buffer space in the drive, approximately 13,000 kbytes can be used as a cache. The buffer is divided into logical segments from which data is read and to which data is written. The drive keeps track of the logical block addresses of the data stored in each segment of the buffer. If the cache is enabled (see RCD bit in the SAS Interface Manual ), data requested by

Resumo do conteúdo contido na página número 16

4.5.1 Caching write data Write caching is a write operation by the drive that makes use of a drive buffer storage area where the data to be written to the medium is stored while the drive performs the Write command. If read caching is enabled (RCD=0), then data written to the medium is retained in the cache to be made available 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 indep

Resumo do conteúdo contido na página número 17

5.0 RELIABILITY SPECIFICATIONS The following reliability specifications assume correct host and drive operational interface, including all interface timings, power supply voltages, environmental requirements and drive mounting constraints. 8 Seek error rate: Less than 10 errors in 10 seeks Read Error Rates 12 Recovered Data Less than 10 errors in 10 bits transferred (OEM default settings) 16 Unrecovered Data Less than 1 sector in 10 bits transferred 21 Miscorrected Data Less than 1 sector

Resumo do conteúdo contido na página número 18

5.2.1 Annualized Failrue Rate (AFR) and Mean time between failure (MTBF) These drives shall achieve an AFR of 0.55% (MTBF of 1,600,000 hours) when operated in an environment that ensures the HDA case temperatures do not exceed the values specified in Section 6.4. Operation at case temperatures outside the specifications in Section 6.4 may increase the AFR (decrease the MTBF). AFR and MTBF statistics are population statistics that are not relevant to individual units. AFR and MTBF specificat

Resumo do conteúdo contido na página número 19

Performance impact S.M.A.R.T. attribute data is saved to the disk so that the events that caused a predictive failure can be recreated. The drive measures and saves parameters once every two hours subject to an idle period on the drive interfaces. The process of measuring off-line attribute data and saving data to the disk is uninterruptable. The maximum on-line only processing delay is summarized below: Table 2: Maximum processing delay On-line only delay Fully-enabled delay DEXCPT = 0,

Resumo do conteúdo contido na página número 20

The current algorithm implements two temperature trip points. The first trip point is set at 68°C which is the maximum temperature limit according to the drive specification. The second trip point is user-selectable using the Log Select command. The reference temperature parameter in the temperature log page (see Table 2) can be used to set this trip point. The default value for this drive is 68°C, however, you can set it to any value in the range of 0 to 68°C. If you specify a temperatur


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