Manual de instrucciones de Seagate Momentus ST93205620AS

Manual de instrucciones del aparato Seagate Momentus ST93205620AS

Aparato: Seagate Momentus ST93205620AS
Categoría: Lector CD
Fabricante: Seagate
Tamaño: 0.75 MB
Fecha de añadido: 3/2/2013
Número de páginas: 44
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Resumen del contenido incluido en la página 1

Product Manual
®
Momentus XT
ST95005620AS
ST93205620AS
ST92505610AS
100610268
Rev. B
September 2010

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Revision history Revision Date Sheets affected or comments Rev. A 03/25/10 Initial release. Rev. B 09/01/10 1, 4 & 13. (Non-op shock 900Gs @ 1ms) © 2010 Seagate Technology LLC. All rights reserved. Publication number: 100610268, Rev. B, September 2010 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Momentus and SeaTools are either trademarks or registered trademarks of Seagate Technology LLC or one

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 . . . . . . . . . . . . . . . .

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ii Momentus XT Product Manual, Rev. B

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List of Figures Figure 1. Typical +5V only startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 2. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 3. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 4. Mounting dimensions—top, side and end view . . . . . . . . .

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1.0 Introduction This manual describes the functional, mechanical and interface specifications for the following Seagate ® Momentus XT model drives: Standard models ST95005620AS ST93205620AS ST92505610AS These drives provide the following key features: • 7200-RPM spindle speed. • 32MB buffer. • Quiet operation. Fluid Dynamic Bearing (FDB) motor. • High instantaneous (burst) data-transfer rates (up to 3Gbs). • Perpendicular recording technology. • State-of-the-art cache and on-the-fly error-corr

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 normally necessary to set any jumpers 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 tran

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. 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 section of this manual. Table 1: Drive specifications Drive specification ST95005620AS ST93205620AS ST92505610AS Formatted GB (512 bytes/sector)* 500 320 250 Guaranteed sectors 976,773,168

Resumen del contenido incluido en la página 10

Table 1: Drive specifications Drive specification ST95005620AS ST93205620AS ST92505610AS Read power (watts typical) 2.4 Write power (watts typical) 2.3 Idle mode, low power (watts typical) 0.8 Standby mode (watts typical) 0.40 *** Sleep mode (watts typical) 0.40 *** Voltage tolerance (including noise) +5V ± 5% Ambient temperature (°C) 0 to 60 (operating) –40 to 70 (nonoperating) Temperature gradient (°C per hour max) 20 (operating), 35 (nonoperating) Relative humidity 5% to 95% (operating and n

Resumen del contenido incluido en la página 11

2.2 Formatted capacity Model Formatted capacity* Guaranteed sectors Bytes per sector ST95005620AS 500GB 976,773,168 512 ST93205620AS 320GB 625,142,448 512 ST92505610AS 250GB 488,397,168 512 *One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting. 2.2.1 LBA mode When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1, where n is the number of guar

Resumen del contenido incluido en la página 12

2.4 Physical organization Drive model Read/write heads Number of discs ST95005620AS 4 2 ST93205620AS 3 ST92505610AS 2 1 2.5 Recording and interface technology Interface Serial ATA (SATA) Recording method Perpendicular Recording density BPI (bits/in max) 1,490k Track density TPI (tracks/in max) 265k 2 Areal density (Gb/in max) 394 Spindle speed (RPM) (± 0.2%) 7200 Maximum Internal transfer rate (Gb/s) 1.23 I/O data-transfer rate (Gb/s max) 3.0 Interleave 1:1 Cache buffer 32MB (32,768KB) 2.6 Physi

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 5000 measurements of seeks between random tracks, less overhead. Table 2: Typical seek times Typical seek times (ms) Read Track-to-t

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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. • 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 mode, the read/write actuator arm

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2.9.1.1 Typical current profile Figure 1. Typical +5V only startup and operation current profile Momentus XT Product Manual, Rev. B 9

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2.9.2 Conducted noise Input noise ripple is measured at the host system power supply across an equivalent 15-ohm resistive load on the +5V line. Using 5V power, the drive is expected to operate with a maximum of 100mV 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. 2.9.3 Voltage tolerance Voltage tolerance (including noise): 5V ± 5% 10 Momentus XT Product Manual, Rev. B

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2.9.4 Power-management modes The drive provides programmable power management to provide greater energy efficiency. In most systems, you can control power management through the system setup program. The drive features the following power-management modes: Table 4: Power management modes Power modes Heads Spindle Buffer Active (operating) Tracking Rotating Full power Idle, performance Tracking Rotating Self refresh—low power Idle, active Floating Rotating Self refresh—low power Idle, low power

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2.10 Environmental specifications This section provides the temperature, humidity, shock, and vibration specifications for Momentus XT drives. 2.10.1 Ambient temperature Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Actual drive case temperature should not exceed 65°C (149°F) within the operating ambient conditions. Above 1000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet. Operating: 0°C to 60°C

Resumen del contenido incluido en la página 19

2.10.6 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. 2.10.6.1 Operating shock These drives comply with the performance levels specified in this document when subjected to a maximum operating shock of 350 Gs based on half-sine shock pulses of 2 ms. Shocks should not be repeated more than one time per axis. 2.10.6.2 Nonoperating shock The nonoperating shock level tha

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*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 operational levels. Test for Prominent Discrete Tones (PDTs) Seagate follows the ECMA-74 standards for measurement and identification of PDTs. An exception to this pro- cess is the use of the absolute threshold of hearing. Seagate uses the lower limit for the threshold curve* to discern tone audibility and to compensate for the inaudible components


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