Manual de instrucciones de Seagate ST3146755SS

Manual de instrucciones del aparato Seagate ST3146755SS

Aparato: Seagate ST3146755SS
Categoría: Lector CD
Fabricante: Seagate
Tamaño: 2.28 MB
Fecha de añadido: 5/15/2013
Número de páginas: 88
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Resúmenes de contenidos
Resumen del contenido incluido en la página 1

Cheetah T10 SAS
ST3300555SS
ST3146755SS
ST373355SS

Resumen del contenido incluido en la página 2

©2006, Seagate Technology LLC All rights reserved Publication number: 100433694, A October 2006 Seagate, Seagate Technology, and the Seagate logo are registered trademarks of Seagate Technology LLC. SeaTools, SeaFONE, SeaBOARD, and SeaTDD are either registered trade- marks or trademarks of Seagate Technology LLC. Other product names are registered trade- marks or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. No part of t

Resumen del contenido incluido en la página 3

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

Resumen del contenido incluido en la página 4

6.4.1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 6.4.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 6.4.3 Effective altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 6.4.4 Shock and vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 6.4.5 Air c

Resumen del contenido incluido en la página 5

List of Figures Figure 1. Cheetah T10 SAS disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Figure 2. Typical ST3300555SS drive current profiles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Figure 3. Typical ST3146755SS drive current profiles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Figure 4. Typ

Resumen del contenido incluido en la página 6

2 Cheetah T10 SAS Product Manual, Rev. A

Resumen del contenido incluido en la página 7

1.0 Scope ® ® This manual describes Seagate Technology LLC, Cheetah SAS (Serial Attached SCSI) disc drives. Cheetah drives support the SAS Protocol specifications to the extent described in this manual. The SAS Inter- face Manual (part number 100293071) describes the general SAS characteristics of Cheetah T10 and other Seagate SAS drives. Figure 1. Cheetah T10 SAS disc drive Cheetah T10 SAS Product Manual, Rev. A 1

Resumen del contenido incluido en la página 8

2 Cheetah T10 SAS Product Manual, Rev. A

Resumen del contenido incluido en la página 9

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

Resumen del contenido incluido en la página 10

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 • 3.5-inch floppy disc drive • Keyboard • Monitor/display • Printer • External modem •Mouse A

Resumen del contenido incluido en la página 11

2.3 Reference documents Cheetah T10 SAS Installation Guide Seagate part number: 100433695 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 Architecur

Resumen del contenido incluido en la página 12

6 Cheetah T10 SAS Product Manual, Rev. A

Resumen del contenido incluido en la página 13

3.0 General description Cheetah drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood (PRML) read channel electronics, embedded servo technology, and a Serial Attached SCSI (SAS) interface to provide high performance, high capacity data storage for a variety of systems including engineering workstations, net- work servers, mainframes, and supercomputers. The Serial Attached SCSI interface is designed to meet next- generation computing demands for performance, s

Resumen del contenido incluido en la página 14

3.1 Standard features Cheetah drives have the following standard features: • 1.5 / 3 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, 524, or 528 bytes per logical block) • Perpendicular recording technology •

Resumen del contenido incluido en la página 15

3.4 Reliability • 1,400,000 hour MTBF (Annualized Failure Rate (AFR) of 0.62%) • 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 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 t

Resumen del contenido incluido en la página 16

3.8 Options (factory installed) You may order the following items which are incorporated at the manufacturing facility during production or packaged before shipping. Some of the options available are (not an exhaustive list of possible options): • Other capacities can be ordered depending on sparing scheme and sector size requested. • Single-unit shipping pack. The drive is normally shipped in bulk packaging to provide maximum protection against transit damage. Units shipped individually requi

Resumen del contenido incluido en la página 17

4.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Cheetah drives. 4.1 Internal drive characteristics ST3300555SS ST3146755SS ST373355SS *,** Drive capacity 300.0 146.8 73.4 Gbytes (formatted, rounded off value) Read/write data heads 8 4 2 Tracks per surface (total) 74,340 74,340 74,340 Tracks (user accessible) Tracks per inch 125,000 125,000 125,000 TPI Peak bits per inch 890k 890k 890k KBPI 2 Areal Density

Resumen del contenido incluido en la página 18

4.2.2 Format command execution time (minutes) ST3300555SS ST3146755SS ST373355SS 145 90 60 Maximum (with verify) 90 45 30 Maximum (without verify) 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 disc transfer rate*: Minimum 55.5 Mbytes/sec Maximum 93 Mbytes/sec SAS Interface maximum instantaneous transfer ra

Resumen del contenido incluido en la página 19

The START STOP UNIT command may be used to command the drive to stop the spindle. Stop time is 30 sec- onds (maximum) from removal of DC power. There is no power control switch on the drive. 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 sen

Resumen del contenido incluido en la página 20

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 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 indepen


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