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Product Manual
Barracuda
ST31000524AS
ST3750525AS
ST3500413AS
ST3320413AS
ST3250312AS
ST3160316AS
100636864
Rev. B
March 2011
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Document Revision History Revision Date Description of Change Rev. A 08/20/2010 Initial release. Rev. B 03/04/2011 Added Reliability section. Copyright © 2011 Seagate Technology LLC. All rights reserved. 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 trademarks of Seagate Technology LLC or one of its affiliated companies in the Unit
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Contents Seagate Technology Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.0 Drive Specifications . . . . . . . . . . . . . . . . . . . . . . .
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Barracuda SATA Product Manual, Rev. B
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Figures Figure 1 Attaching SATA cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Figure 2 Mounting dimensions (1000 and 750GB models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Figure 3 Mounting dimensions (500, 320, 250 and 160GB models) . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Barracuda SATA Product Manual, Rev. B
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Barracuda SATA Product Manual, Rev. B
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Seagate Technology Support Services For information regarding online support and services, visit http://www.seagate.com/www/en-us/about/ contact_us/ Available services include: • Presales & Technical support • Global Support Services telephone numbers & business hours • Authorized Service Centers For information regarding Warranty Support, visit http://www.seagate.com/www/en-us/support/warranty_&_returns_assistance For information regarding data recovery services, visit http://www.i365.com For
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8 Barracuda SATA Product Manual, Rev. B
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1.0 Introduction This manual describes the functional, mechanical and interface specifications for the following Seagate ® Barracuda model drives: ST31000524AS ST3500413AS ST3250312AS ST3750525AS ST3320413AS ST3160316AS These drives provide the following key features: • 7200 RPM spindle speed. • High instantaneous (burst) data-transfer rates (up to 600MB per second). • Perpendicular recording technology provides the drives with increased areal density. • State-of-the-art cache and on-the-fly
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Introduction www.seagate.com The Serial ATA host adapter and drive share the function of emulating parallel ATA device behavior to provide backward compatibility with existing host systems and software. The Command and Control Block registers, PIO and DMA data transfers, resets, and interrupts are all emulated. The Serial ATA host adapter contains a set of registers that shadow the contents of the traditional device registers, referred to as the Shadow Register Block. All Serial ATA devices b
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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: ST31000524AS ST3500413AS ST3250312AS ST3750525AS ST3320413AS ST3160316AS 2.1 Specification summary tables The specifications listed in the following tables are for quick reference. For details on specification measurement or definition
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Drive Specifications www.seagate.com Table 1 Drive specifications summary for 1000 and 750 models (continued) Drive Specification ST31000524AS ST3750525AS Startup current (typical) 12V (peak) 2.0A 2.0A Voltage tolerance (including noise) 5V +10% / -7.5% 5V +10% / -7.5% 12V +10% / -7.5% 12V +10% / -7.5% Ambient temperature 0° to 60°C (operating) 0° to 60°C (operating) –40° to 70°C (non-operating) –40° to 70°C (non-operating) Temperature gradient 20°C per hour max (operating) 20°C per hour max (
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www.seagate.com Drive Specifications Table 2 Drive specifications summary for 500GB and 320 models (continued) Drive Specification ST3500413AS ST3320413AS Recording density (max.) 1413kb/in 1413kb/in Track density (avg.) 236 ktracks/in 236 ktracks/in 2 2 Areal density (avg.) 329Gb/in 329Gb/in Spindle speed 7200 RPM 7200 RPM Internal data transfer rate (max) 1695Mb/s 1695Mb/s Sustained data transfer rate OD (max) 125MB/s 125MB/s I/O data-transfer rate (max.) 600MB/s 600MB/s ATA data-transf
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Drive Specifications www.seagate.com Table 2 Drive specifications summary for 500GB and 320 models (continued) Drive Specification ST3500413AS ST3320413AS Warranty To determine the warranty for a specific drive, use a web browser to access the following web page: support.seagate.com/customer/warranty_validation.jsp From this page, click on the “Verify Your Warranty” link. You will be asked to provide the drive serial number, model number (or part number) and country of purchase. The system
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www.seagate.com Drive Specifications Table 3 Drive specifications summary for 250GB and 160GB models (continued) Drive Specification ST3250312AS ST3160316AS Relative humidity 5% to 95% (operating) 5% to 95% (operating) 5% to 95% (non-operating) 5% to 95% (non-operating) Relative humidity gradient (max.) 30% per hour 30% per hour Wet bulb temperature 37.7°C max (operating) 37.7°C max (operating) 40.0°C max (non-operating) 40.0°C max (non-operating) Altitude, operating –60.96m to 3,048m –60.96m
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Drive Specifications www.seagate.com 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 guaranteed sectors as defined above. See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-bit addressing support of drives with capacities over 137GB. 2.3 Default logical geometry Cylinders Read/write heads Sectors per track 16,383 16 63 LBA mode When address
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www.seagate.com Drive Specifications 2.4 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 (Mb/s max) 1695 Sustained data transfer rate (MB/s max) 125 I/O data-transfer rate (MB/s max) 600 2.5 Physical characteristics Maximum height 1000 and 750GB models 26.1mm / 1.028 in 500,
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Drive Specifications www.seagate.com These drives are designed to consistently meet the seek times represented in this manual. Physical seeks, regardless of mode (such as track-to-track and average), are expected to meet the noted values. However, due to the manner in which these drives are formatted, benchmark Note tests that include command overhead or measure logical seeks may produce results that vary from these specifications. 2.7 Start/stop times 1000 and 750GB models 500, 320, 250 and
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www.seagate.com Drive Specifications Table 4 DC power requirements (2-disk) Power dissipation (2-disk values shown) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps Spinup — — 2.0 (peak) Idle* † 5.0 0.168 0.337 Idle* † (with offline activity) 5.40 0.153 0.387 Operating 6.57 0.496 0.341 Standby 0.79 0.35 0.01 Sleep 0.79 0.35 0.01 Table 5 DC power requirements (1-disk) Power dissipation (1-disk values shown) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps Spinup — — 2.0 (peak) Idle* † 4.60 0.
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Drive Specifications www.seagate.com 2.8.4 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 dur
