Manual de instrucciones de Seagate MOMENTUS ST98823SB

Manual de instrucciones del aparato Seagate MOMENTUS ST98823SB

Aparato: Seagate MOMENTUS ST98823SB
Categoría: Lector CD
Fabricante: Seagate
Tamaño: 0.82 MB
Fecha de añadido: 6/9/2013
Número de páginas: 44
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Resumen del contenido incluido en la página 1

Product Manual
®
Momentus 5400.2 SATA
ST9120821SB
ST9100824SB
ST98823SB
ST96812SB
ST94813SB
100392442
Rev. B
August 2007

Resumen del contenido incluido en la página 2

©2004-2007, Seagate Technology LLC All rights reserved. Publication number: 100392442, Rev. B August 2007 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Momentus, Seagate- SeaBOARD, SeaFONE, SeaTDD, and SeaTools are either trademarks or registered trade- marks of Seagate Technology LLC or one of its affiliated companies in the United States and/ or other countries. All other trademarks or registere

Resumen del contenido incluido en la página 3

Contents 1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Specification summary table . . . . . . . . . . . . . . . .

Resumen del contenido incluido en la página 4

ii Momentus 5400.2 SATA Blade Server Product Manual, Rev. B

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List of Figures Figure 1. Momentus 5400.2 SATA disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2. Typical +5V only startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 3. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 4. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . .

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1.0 Introduction This manual describes the functional, mechanical and interface specifications for the following Seagate ® Momentus 5400.2 SATA Blade Server model drives: � ST9120821SB � ST9100824SB � ST98823SB � ST96812SB � ST94813SB These drives provide the following key features: � 5,400 RPM spindle speed. � 8 Mbyte buffer. � High instantaneous (burst) data-transfer rates (up to 150 Mbytes per second). � Tunneling Magnetoresistive (TMR) recording heads. � State-of-the-art cache and on-the-fl

Resumen del contenido incluido en la página 8

1.1 About the Serial ATA interface The Serial ATA interface provides several advantages over the traditional (parallel) ATA interface. The primary advantages include: � Easy installation and configuration with true plug-and-play connectivity. It is not necessary to set any jump- ers or other configuration options. � Thinner and more flexible cabling for improved enclosure airflow and ease of installation. � Scalability to higher performance levels. In addition, Serial ATA makes the transition f

Resumen del contenido incluido en la página 9

2.0 Drive specifications Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate the ST9120821SB, ST9100824SB, ST98823SB, ST96812SB, ST94813SB and ST93811AS models. 2.1 Specification summary table The specifications listed in this table are for quick reference. For details on specification measurement or defi- nition, see the appropriate sectio

Resumen del contenido incluido en la página 10

Table 1: Drive specifications Drive specification ST9120821SB ST9100824SB ST98823SB ST96812SB ST94813SB Track-to-track seek time 1.0 (read), 1.5 (write) (msec typical) Average seek, read (msec typical) 12.5 Average seek, write (msec typical) 14.5 Seek power (typical) 2.20 watts Read/write power (typical) Read: 1.90 watts; Write: 2.30 watts Idle mode, low power (typical) 0.80 watts Standby mode (typical) 0.28 watts** Sleep mode (typical) 0.28 watts** Voltage tolerance (including noise) +5.0V ± 5

Resumen del contenido incluido en la página 11

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting. **Typical notebooks will pull power to the drive when entering S3 and S4; while in the S3 and S4 states, drive sleep and drive standby modes will not contribute to battery power consumption. ***During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power to op

Resumen del contenido incluido en la página 12

2.4 Physical organization Drive model Read/write heads Number of discs ST9120821SB 4 2 ST9100824SB 4 2 ST98823SB 3 2 ST96812SB 2 1 ST94813SB 2 1 2.5 Recording and interface technology Interface Serial ATA (SATA) Recording method 16/17 EPRML Recording density BPI (bits/inch max) 778k Track density TPI (tracks/inch max) 126k 2 Areal density (Mbits/inch max) 98.2 Spindle speed (RPM) (± 0.2%) 5,400 Maximum Internal transfer rate (Mbytes/sec) 42 I/O data-transfer rate (Mbytes/sec max) 150 (SATA 1.

Resumen del contenido incluido en la página 13

2.7 Seek time Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using drive diagnostics. The specifications in the table below are defined as follows: � Track-to-track seek time is an average of all possible single-track seeks in both directions. � Average seek time is a true statistical random average of at least 5,000 measurements of seeks between random tracks, less overhead. Table 2: Typical seek times Typical seek times (msec) Read Write T

Resumen del contenido incluido en la página 14

2.9 Power specifications The drive receives DC power (+5V) through a native SATA power connector. 2.9.1 Power consumption Power requirements for the drives are listed in the table on page 8. Typical power measurements are based on an average of drives tested, under nominal conditions, at 25°C ambient temperature, after 25 minutes of oper- ation. • Spinup power Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating speed. � Seek mode During seek m

Resumen del contenido incluido en la página 15

Figure 2. Typical +5V only startup and operation current profile 2.9.2 Deferred spinup Momentus 5400.2 SATA drives provide a deferred spinup feature which storage subsystem controllers can use to sequence disc drive initialization. This is beneficial to systems which include multiple Serial ATA hard disc drives because it allows subsystem controllers to stagger the spinup of each drive to accommodate available power supply current. This feature does not impact time-to-ready in typical de

Resumen del contenido incluido en la página 16

2.9.3 Conducted noise Input noise ripple is measured at the host system power supply across an equivalent 15-ohm resistive load on the +5 volt line. Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave injected noise at up to 10 MHz. Note. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current. 2.9.4 Voltage tolerance Voltage tolerance (including noise): 5V ± 5% 2.10 Environmental specificatio

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2.10.5 Shock All shock specifications assume that the drive is mounted securely with the input shock applied at the drive mounting screws. Shock may be applied in the X, Y or Z axis. 2.10.5.1 Operating shock These drives comply with the performance levels specified in this document when subjected to a maximum operating shock of 250 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more than two times per second. 2.10.5.2 Nonoperating shock The nonoperating shock leve

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2.11 Acoustics Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All mea- surements are consistent with ISO document 7779. Sound power measurements are taken under essentially free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward. For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is defined by the following equation: (Number of seeks per second =

Resumen del contenido incluido en la página 19

2.13 Reliability Measurement type Specification 14 Nonrecoverable read errors 1 per 10 bits read, max. Annualized Failure Rate (AFR) 1.74% at maximum case temperature of 40°C and 8,760 power on hours (POH). Load/Unload (U/UL) 25°C, 50% relative humidity 600,000 software-controlled power on/off cycles 20,000 hard power on/off cycles 32°C, 80% relative humidity 600,000 software-controlled power on/off cycles 5°C, 80% relative humidity 20,000 hard power on/off cycles 5°C, 10% relat

Resumen del contenido incluido en la página 20

Korean RRL If these drives have the Korea Ministry of Information and Communication (MIC) logo, they comply with para- graph 1 of Article 11 of the Electromagnetic Compatibility control Regulation and meet the Electromagnetic Compatibility (EMC) Framework requirements of the Radio Research Laboratory (RRL) Ministry of Information and Communication Republic of Korea. These drives have been tested and comply with the Electromagnetic Interference/Electromagnetic Susceptibil- ity (EMI/EMS) for Cla


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