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Product Manual
Barracuda LP Series SATA
ST32000542AS
ST31500541AS
ST31000520AS
100564361
Rev. A
April 2009
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Revision history Revision Date Sheets affected or comments Rev. A 04/16/09 Initial release. Copyright © 2009 Seagate Technology LLC. All rights reserved. Printed in U.S.A. Publication number: 100564361, Rev. A 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 LP Series, SeaTools and SeaTDD are either trade- marks or registered trademarks of Seagate Technology LLC or one of its affil
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Contents 1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Formatted capacity . . . . . . . . . . . . . . . . . . . .
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ii Barracuda LP Series SATA Product Manual, Rev. A
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List of Figures Figure 1. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 2. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Figure 3. Mounting dimensions (2.0, 1.5 and 1.0 TB models). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Barracuda LP Series SATA Product Manual, Rev. A iii
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1.0 Introduction This manual describes the functional, mechanical and interface specifications for the following Seagate ® Barracuda LP Series model drives: ST32000542AS ST31500541AS ST31000520AS These drives provide the following key features: • 5,900 RPM spindle speed. • High instantaneous (burst) data-transfer rates (up to 300 Mbytes per second). • Perpendicular recording, Tunneling Magnetoresistive (TMR) recording heads and EPRML technology, for increased areal density. • State-of-the-ar
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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
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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 following drive models: ST32000542AS ST31500541AS ST31000520AS Specification summary tables The specifications listed in the following tables are for quick reference. For details on specification measure- ment or definition, see the appropriate section of this
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Table 1: Drive specifications summary for 2000 and 1500 Gbyte models Drive specification ST32000542AS ST31500541AS ST31000520AS Formatted capacity 2000 Gbytes 1500 Gbytes 1000 Gbytes (512 bytes/sector)* Guaranteed sectors 3,907,029,168 2,930,277,168 1,953,525,168 Heads 8 4 Discs 4 2 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density 1417 kbits/in max Track density 236 ktracks/in avg 2 Areal density 341.5 Gbits/in avg Spindle
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Drive specification ST32000542AS ST31500541AS ST31000520AS Operational Shock 70 Gs at 2 msec max Non-Operational Shock 350 Gs at 2 msec max Vibration, operating 5–350 Hz: 0.50 Gs 350–500 Hz: 0.25 Gs Vibration, nonoperating 5–350 Hz: 5.0 Gs 350–500 Hz: 2.0 Gs Drive acoustics, sound power Idle** 2.5 bels (typical) 1.9 bels (typical) 2.6 bels (max) 2.1 bels (max) Seek Profile 2.6 bels (typical) 2.0 bels (typical) 2.8 bels (max) 2.2 bels (max) 14 Nonrecoverable read errors 1 per 10 bi
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2.1 Formatted capacity Formatted Guaranteed Model capacity* sectors Bytes per sector ST32000542AS 2000 Gbytes 3,907,029,168 ST31500541AS 1500 Gbytes 2,930,277,168 512 ST31000520AS 1000 Gbytes 1,953,525,168 *One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting. 2.1.1 LBA mode When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1, where n is th
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2.4 Physical characteristics ST32000542AS and ST31500541AS ST31000520AS Maximum height 26.1 mm (1.028 inches) Maximum width 101.85 mm (4.010 inches) Maximum length 146.99 mm (5.787 inches) Typical weight 655 grams (1.444 lb.) 622 grams (1.371lb.) Cache buffer 32 Mbytes (16,384 kbytes) 2.5 Access time Access time measurements are taken with nominal power at 25°C ambient temperature. All times are mea- sured using drive diagnostics. The specifications in the table below are defined as follows: •
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2.7 Power specifications The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 4 on page 20. 2.7.1 Power consumption Power requirements for the drives are listed in the table on page 9. Typical power measurements are based on an average of drives tested, under nominal conditions, using 5.0V and 12.0V input voltage 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 operat
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Table 2: DC power requirements Power dissipation (2TB and 1.5TB models) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps Spinup — — 2.8 (peak) Idle* † 5.50 0.168 0.337 Operating (average) 6.80 0.360 0.420 Standby 0.500 0.350 0.010 Sleep 0.500 0.350 0.010 Power dissipation (1TB models) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps Spinup — — 2.0 (peak) Idle* † 3.00 0.218 0.216 Operating (average) 5.70 0.335 0.350 Standby 0.321 0.225 0.096 Sleep 0.321 0.225 0.096 *During periods of drive
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2.7.1.1 Typical current profiles Figure 1. Typical 12V startup and operation current profile (4 disk typical) Figure 2. Typical 12V startup and operation current profile (2 disk typical) 10 Barracuda LP Series SATA Product Manual, Rev. A
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2.7.2 Conducted noise Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on the +12 volt line or an equivalent 15-ohm resistive load on the +5 volt line. • Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave injected noise at up to 10 MHz. • 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. Equival
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2.7.4 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: Power modes Heads Spindle Buffer Active Tracking Rotating Enabled Idle Tracking Rotating Enabled Standby Parked Stopped Enabled Sleep Parked Stopped Disabled • Active mode The drive is in Active mode during the read/write and seek operation
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2.8 Environmental specifications 2.8.1 Ambient temperature Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Actual drive case temperature should not exceed 69°C (156°F) within the operating ambient conditions. Operating: 0° to 60°C (32° to 140°F) Nonoperating: * –40° to 70°C (–40° to 158°F) * See Section 2.11.1 for reliability projections. 2.8.2 Temperature gradient Operating: 20°C per hour (68°F per hour max), without condensation Nonoper
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2.8.5 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. 2.8.5.1 Operating shock These drives comply with the performance levels specified in this document when subjected to a maximum operating shock of 70 Gs based on half-sine shock pulses of 2 msec during read operations. Shocks should not be repeated more than two times per second. 2.8.5.2 Nonoperating shock The nono
