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Product Manual
Barracuda 7200.12 Serial ATA
ST3320418AS
ST31000528AS
ST3250318AS
ST3750528AS
ST3160318AS
ST3500418AS
ST3500410AS
100529369
Rev. B
February 2009
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Revision history Revision Date Sheets affected or comments Rev A 08/15/08 Initial release. Rev. B) 02/12/09 fc, 1, 3-19, 22-25, 29-30 and 37. Copyright © 2008-2009 Seagate Technology LLC. All rights reserved. Printed in U.S.A. Publication number: 100529369, Rev. B, February 2009 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Barracuda, SeaTools and SeaTDD are either trademarks or registered trademar
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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 7200.12 Serial ATA Product Manual, Rev. B
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List of Figures Figure 1. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 2. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 3. Mounting dimensions (1000 and 750 GB models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 4. Mounting dimensions (500, 320, 250 and 160 GB models) . . . . . .
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1.0 Introduction This manual describes the functional, mechanical and interface specifications for the following Seagate ® Barracuda 7200.12 Serial ATA model drives: ST31000528AS ST3500418AS ST3320418AS ST3160318AS ST3750528AS ST3500410AS ST3250318AS These drives provide the following key features: • 7,200 RPM spindle speed. • High instantaneous (burst) data-transfer rates (up to 300 Mbytes per second). • Perpendicular recording, Tunneling Magnetoresistive (TMR) recording heads and EPRML techn
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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: ST31000528AS ST3500418AS ST3320418AS ST3160318AS ST3750528AS ST3500410AS ST3250318AS Specification summary tables The specifications listed in the following tables are for quick reference. For details on specification measure- ment or d
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Table 1: Drive specifications summary for 1000 and 750 Gbyte models Drive specification ST31000528AS ST3750528AS Formatted capacity (512 bytes/sector)* 1000 Gbytes 750 Gbytes Guaranteed sectors 1,953,525,168 1,465,149,168 Heads 4 3 Discs 2 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density 1413 kbits/in max Track density 236 ktracks/in avg 2 Areal density 329 Gbits/in avg Spindle speed 7,200 RPM Internal data transfer rate 16
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Drive specification ST31000528AS ST3750528AS Vibration, operating 2–22 Hz: 0.25 Gs, Limited displacement 22–350 Hz: 0.50 Gs 350–500 Hz: 0.25 Gs Vibration, nonoperating 5–22 Hz: 2.0 Gs 22–350 Hz: 5.0 Gs 350–500 Hz: 2.0 Gs Drive acoustics, sound power Idle** 2.6 bels (typical) 2.7 bels (max) Seek 2.8 bels (typical) 3.0 bels (max) 14 Nonrecoverable read errors 1 per 10 bits read Annualized Failure Rate (AFR) 0.32% Warranty To determine the warranty for a specific drive, use a web b
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Table 2: Drive specifications summary for 500 Gbyte models Drive specification ST3500418AS and ST3500410AS ST3320418AS Formatted capacity (512 bytes/sector)* 500 Gbytes 320 Gbytes Guaranteed sectors 976.773,168 625,142,448 Heads 2 Discs 1 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density 1413 kbits/in max Track density 236 ktracks/in avg 2 Areal density 329 Gbits/in avg Spindle speed 7,200 RPM Internal data transfer rate 169
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Drive specification ST3500418AS and ST3500410AS ST3320418AS Vibration, operating 2–22 Hz: 0.25 Gs, Limited displacement 22–350 Hz: 0.50 Gs 350–500 Hz: 0.25 Gs Vibration, nonoperating 5–22 Hz: 2.0 Gs 22–350 Hz: 5.0 Gs 350–500 Hz: 2.0 Gs Drive acoustics, sound power Idle** 2.6 bels (typical) 2.7 bels (max) Seek 2.8 bels (typical) 3.0 bels (max) 14 Nonrecoverable read errors 1 per 10 bits read Annualized Failure Rate (AFR) 0.32% Warranty To determine the warranty for a specific dri
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Table 3: Drive specifications summary for 250 Gbyte models Drive specification ST3250318AS ST3160318AS Formatted capacity (512 bytes/sector)* 250 Gbytes 160 Gbytes Guaranteed sectors 488,397,168 312,581,808 Heads 1 Discs 1 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density 1413 kbits/in max Track density 236 ktracks/in avg 2 Areal density 329 Gbits/in avg Spindle speed 7,200 RPM Internal data transfer rate 1695 Mbits/sec max
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Drive specification ST3250318AS ST3160318AS Vibration, operating 2–22 Hz: 0.25 Gs, Limited displacement 22–350 Hz: 0.50 Gs 350–500 Hz: 0.25 Gs Vibration, nonoperating 5–22 Hz: 2.0 Gs 22–350 Hz: 5.0 Gs 350–500 Hz: 2.0 Gs Drive acoustics, sound power Idle** 2.6 bels (typical) 2.7 bels (max) Seek 2.8 bels (typical) 3.0 bels (max) 14 Nonrecoverable read errors 1 per 10 bits read Annualized Failure Rate (AFR) 0.32% Warranty To determine the warranty for a specific drive, use a web br
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2.1 Formatted capacity Formatted Guaranteed Model Bytes per sector capacity* sectors ST31000528AS 1000 Gbytes 1,953,525,168 ST3750528AS 750 Gbytes 1,465,149,168 ST3500418AS 500 Gbytes 976,773,168 ST3500410AS 512 ST3320418AS 320 Gbytes 625,142,448 ST3250318AS 250 Gbytes 488,397,168 ST3160318AS 160 Gbytes 312,581,808 *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 W
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2.3 Recording and interface technology Interface Serial ATA (SATA) Recording method Perpendicular Recording density (kbits/inch max) 1413 Track density (ktracks/inch avg) 236 2 Areal density (Gbits/inch avg) 329 Spindle speed (RPM) 7,200 ± 0.2% Internal data transfer rate (Mbits/sec max) 1695 Sustained data transfer rate (Mbytes/sec max) 125 I/O data-transfer rate (Mbytes/sec max) 300 2.4 Physical characteristics Maximum height 1000 and 750 GB models 26.1 mm (1.028 inches) 500, 320, 250 and 1
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2.5 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. Typical seek times (msec) Read Write Track-to-track 1.0 1.2 Aver
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2.7 Power specifications The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 2 on page 22. 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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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
