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Product Manual
Barracuda ES.2 Serial ATA
ST31000340NS ST3500320NS
ST3750330NS ST3250310NS
100468393
Rev. A
August 2007
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Revision history Revision Date Sheets affected or comments Rev. A 08/10/07 Initial release Copyright © 2007 Seagate Technology LLC. All rights reserved. Printed in U.S.A. Publication number: 100468393, Rev. A August 2007 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 compa
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Contents 1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Specification summary tables . . . . . . . . . . . . . . .
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ii Barracuda ES.2 Serial ATA Product Manual, Rev. A
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List of Figures Figure 1. Typical 5V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 2. Typical 12V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 3. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 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 ® Barracuda ES.2 Serial ATA model drives: ST31000340NS ST3750330NS ST3500320NS ST3250310NS 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 technology provides the drives with increased areal density. • State-of-the-art cache and on-the-fly err
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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: ST31000340NS ST3750330NS ST3500320NS ST3250310NS 2.1 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 se
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Table 1: Drive specifications summary for 1000 GB (1 Tbyte) and 750 GB models Drive specification ST31000340NS ST3750330NS Formatted Gbytes (512 bytes/sector)* 1000 750 Guaranteed sectors 1,953,525,168 1,465,149,168 Heads 8 6 Discs 4 3 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density, KBPI (kbits/in max) 1,090 Track density, KTPI (ktracks/in avg.) 150 2 Areal density, (Gbits/in avg) 164 Spindle speed (RPM) 7,200 Internal da
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Drive specification ST31000340NS ST3750330NS Vibration, operating 5–22 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, Limited displacement 22–350 Hz: 5.0 Gs 350–500 Hz: 2.0 Gs Drive acoustics, sound power (bels) Active 3.25 (typical) 3.4 (max) Idle** 2.7 (typical) 2.9 (max) Performance seek 3.05 (typical) 3.2 (max) Quiet seek 2.95 (typical) 3.1 (max) 15 No
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Table 2: Drive specifications summary for 500 GB and 250 GB models Drive specification ST3500320NS ST3250310NS Formatted Gbytes (512 bytes/sector)* 500 250 Guaranteed sectors 976,773,168 488,397,168 Heads 4 2 Discs 2 1 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density, KBPI (kbits/in max) 1,090 Track density, KTPI (ktracks/in avg.) 150 2 Areal density, (Gbits/in avg) 164 Spindle speed (RPM) 7,200 Internal data transfer rate
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Drive specification ST3500320NS ST3250310NS Vibration, operating 5–22 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, Limited displacement 22–350 Hz: 5.0 Gs 350–500 Hz: 2.0 Gs Drive acoustics, sound power (bels) Active 3.25 (typical) 3.4 (max) Idle** 2.5 (typical) 2.7 (max) Performance seek 2.85 (typical) 3.0 (max) Quiet seek 2.75 (typical) 2.9 (max) 15 Non
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2.2 Formatted capacity Formatted Guaranteed Model capacity* sectors Bytes per sector ST31000340NS 1000 Gbytes 1,953,525,168 ST3750330NS 750 Gbytes 1,465,149,168 512 ST3500320NS 500 Gbytes 976,773,168 ST3250310NS 250 Gbytes 488,397,168 *One Gbyte 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
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2.4 Recording and interface technology 1000GB 750GB 500GB 250GB Interface Serial ATA (SATA) Recording method Perpendicular Recording density, KBPI (kbits/inch max) 1,090 Track density, KTPI (ktracks/inch avg) 150 2 Areal density (Gbits/inch avg) 164 Spindle speed (RPM) (± 0.2%) 7,200 Internal data transfer rate (Mbits/sec max) 1287 Sustained data transfer rate (Mbytes/sec max) 105 I/O data-transfer rate (Mbytes/sec max) 300 (Ultra DMA mode 5) 2.5 Physical characteristics Maximum height 26.1
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2.6 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 0.8 1.0 Avera
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2.8 Power specifications The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 4 on page 24. 2.8.1 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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2.8.1.1 Typical current profiles Figure 1. Typical 5V startup and operation current profile 12 Barracuda ES.2 Serial ATA Product Manual, Rev. A
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Figure 2. Typical 12V startup and operation current profile 2.8.2 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-p
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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 during the read/write and seek operation
