Seagate DB35.4 User Manual

Product Manual

DB35.4 Series SATA

ST3250310CS

100477758 Rev. C May 2008

Revision history

Revision Date Sheets affected or comments

Rev. A 09/06/07 Initial release. Rev. B 11/07/07 4-13. Rev. C 05-13-08 4, 7 and 12.

Publication number: 100477758, Rev. C May 2008

Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. DB35 Series, SeaTools and SeaTDD are either trademarks or registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States and/or other countries. All other trademarks or registered trademarks are the property of their respective owners.

When referring to hard drive capacity, one gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes. Your computer’s operating system may use a different standard of measure ment and report a lower capacity. In addition, some of the listed capacity is used for formatting and other functions, and thus will not be available for data storage. Seagate reserves the right to change, without notice, product offerings or specifications.

Contents

1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 Specification summary tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.5 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.6 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.7 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.8 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.8.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.8.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.8.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.8.4 Power-management modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.9 Environmental specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.9.1 Drive case temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.9.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.9.3 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.9.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.9.5 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.9.6 Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.10 Acoustics emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.11 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.12 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.12.1 Annualized Failure Rate (AFR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.13 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.13.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.13.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.13.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.14 Environmental protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.14.1 European Union Restriction of Hazardous Substances (RoHS) Directive . . . . . 16

2.14.2 China Restriction of Hazardous Substances (RoHS) Directive . . . . . . . . . . . . . 16

2.15 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.3.3 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

DB35.4 Series SATA Product Manual, Rev. C i

ii DB35.4 Series SATA Product Manual, Rev. C

List of Figures

Figure 1. Typical 5V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 2. Typical 12V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 3. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 4. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Figure 5. Mounting dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

DB35.4 Series SATA Product Manual, Rev. C iii

1.0 Introduction

This manual describes the functional, mechanical and interface specifications for the following Seagate DB35.4

These drives provide the following key features:

• Low profile deck design for improved air-flow and low-profile system design.

• High instantaneous (burst) data-transfer rates (up to 300 Mbytes per second).

• Perpendicular recording, Tunneling Magnetoresistive (TMR) recording heads and EPRML technology, for

• State-of-the-art cache and on-the-fly error-correction algorithms.

• Native Command Queueing with command ordering to increase performance in demanding applications.

• Full-track multiple-sector transfer capability without local processor intervention.

• Quiet operation.

• SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.

• Support for S.M.A.R.T. drive monitoring and reporting.

• Supports latching SATA cables and connectors.

Series model drive:

increased areal density.

ST3250310CS

DB35.4 Series SATA Product Manual, Rev. C 1

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 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 transition from parallel ATA easy by providing legacy software support. Serial ATA was designed to allow you to install a Serial ATA host adapter and Serial ATA disc drive in your current system and expect all of your existing applications to work as normal.

The Serial ATA interface connects each disc drive in a point-to-point configuration with the Serial ATA host adapter. There is no master/slave relationship with Serial ATA devices like there is with parallel ATA. If two drives are attached on one Serial ATA host adapter, the host operating system views the two devices as if they were both “masters” on two separate ports. This essentially means both drives behave as if they are Device 0 (master) devices.

Note. The host adapter may, optionally, emulate a master/slave environment to host software where two

devices on separate Serial ATA ports are represented to host software as a Device 0 (master) and Device 1 (slave) accessed at the same set of host bus addresses. A host adapter that emulates a master/slave environment manages two sets of shadow registers. This is not a typical Serial ATA environment.

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 behave like Device 0 devices. For additional information about how Serial ATA emulates parallel ATA, refer to the “Serial ATA: High Speed Serialized AT Attachment” specification. The specification can be downloaded from www.serialata.org.

2 DB35.4 Series SATA Product Manual, Rev. C

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 model:

ST3250310CS

2.1 Specification summary tables

The specifications listed in the following tables are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual.

DB35.4 Series SATA Product Manual, Rev. C 3

Table 1: Drive specifications summary for 250 Gbyte model

Drive specification ST3250310CS

Formatted capacity (512 bytes/sector)* 250 Gbytes

Guaranteed sectors 488,397,168

Heads 2

Discs 1

Bytes per sector 512

Default sectors per track 63

Default read/write heads 16

Default cylinders 16,383

Recording density 1,049 kbits/in max

Track density 155 ktracks/in avg

Areal density 163 Gbits/in2 avg

Internal data transfer rate 1,212 Mbits/sec max

Sustained data transfer rate OD 106 Mbytes/sec max

I/O data-transfer rate 300 Mbytes/sec max

ATA data-transfer modes supported PIO modes 0–4

Cache buffer 8 Mbytes

Height (max) 20.20 mm (0.794 inches)

Width (max) 101.6 mm (4.000 inches)

Length (max) 146.99 mm (5.787 inches)

Weight (typical) 382 grams (0.842 lb.)

Power-on to ready 16 sec max

Standby to ready 16 sec max

Track-to-track seek time <1.0 msec typical read;

Average seek, read <14.0 msec typical

Average seek, write <15.0 msec typical

Startup current (typical) 12V (peak) 2.0 amps

Voltage tolerance (including noise) 5V ± 5%

Operating temperature (Drive Case temperature) 0° to 75°C

Nonoperating temperature (Ambient) –40° to 70°C

Temperature gradient (max) 20°C per hour max (operating)

Relative humidity 5% to 90% (operating)

Relative humidity gradient 30% per hour max

Wet bulb temperature (max) 37.7°C max (operating)

Altitude, operating –60.96 m to 3,048 m

Altitude, nonoperating (below mean sea level, max)

Operational Shock 63 Gs at 2 msec max

Non-Operational Shock 350 Gs at 2 msec max

Vibration, operating 5–350 Hz: 0.50 Gs

Multiword DMA modes 0–2 Ultra DMA modes 0–6

<1.2 msec typical write

12V ± 10%

30°C per hour max (nonoperating)

5% to 95% (nonoperating)

40.0°C max (nonoperating)

(–200 ft. to 10,000+ ft.)

–60.96 m to 12,192 m (–200 ft. to 40,000+ ft.)

350–500 Hz:: 0.25 Gs

4 DB35.4 Series SATA Product Manual, Rev. C

Drive specification ST3250310CS

Vibration, nonoperating 5–350 Hz: 5.0 Gs

Drive acoustics, sound power

Idle** 2.5 bels (typical)

CE Seek Profile 2.6 bels (typical)

Nonrecoverable read errors 1 per 10

Annualized Failure Rate (AFR) 0.68%

Warranty 5 years on distribution units.

Contact start-stop cycles 50,000 at 25°C, 50% rel. humidity

Supports Hotplug operation per the Serial ATA Revision 2.5 specification

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment

and formatting.

**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.

350–500 Hz:: 1.0 Gs

2.8 bels (max)

bits read

To determine the warranty for a specific drive, use a web browser to access the following web page: 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 will display the warranty information for your drive.

Yes

www.seagate.com/support/service/

DB35.4 Series SATA Product Manual, Rev. C 5

2.2 Formatted capacity

Model

ST3250310CS 250 Gbytes 488,397,168 512

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment

and formatting.

Formatted capacity*

Guaranteed sectors

Bytes per sector

2.2.1 LBA mode

When addressing the drive 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 48bit addressing support of drives with capacities over 137 Gbytes.

2.3 Default logical geometry

Cylinders Read/write heads Sectors per track

16,383 16 63

LBA mode

When addressing the drive 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.

2.4 Recording and interface technology

Interface Serial ATA (SATA)

Recording method Perpendicular

Recording density (kbits/inch max) 1,049

Track density (ktracks/inch avg) 155

Areal density (Gbits/inch2 avg) 163

Internal data transfer rate (Mbits/sec max) 1,212

Sustained data transfer rate (Mbytes/sec max) 106

I/O data-transfer rate (Mbytes/sec max) 300

6 DB35.4 Series SATA Product Manual, Rev. C

2.5 Physical characteristics

Maximum height 20.20 mm (0.794 inches)

Maximum width 101.6 mm (4.000 inches)

Maximum length 146.99 mm (5.787 inches)

Typical weight 382 grams (0.842 lb.)

Cache buffer 8 Mbytes (8,192 kbytes)

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 <1.0 <1.2

Average <14.0 <15.0

*Measured in performance mode.

**Measured in quiet mode.

Note. 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 tests that include command overhead or measure logical seeks may produce results that vary from these specifications.

2.7 Start/stop times

Power-on to Ready (sec) 16 (max)

Standby to Ready (sec) 16 (max)

Ready to spindle stop (sec) 10 (max)

DB35.4 Series SATA Product Manual, Rev. C 7

2.8 Power specifications

The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 4 on page 18.

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 operating speed.

• Idle mode power

Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in a random track location.

• Operating (CE seek profile)

Operating power is measured by simulating a typical PVR operating environment, using a 50% write 50% read algorithm.

• Standby mode

During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/ write electronics are in power-down mode.

Table 2: DC power requirements

Power dissipation Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps

Spinup — — 2.0 (peak)

Idle* 5.33 0.415 0.272

Operating (CE seek profile) 7.97 0.641 0.397

Standby 1.06 0.115 0.040

Sleep 1.06 0.115 0.040

*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.

8 DB35.4 Series SATA Product Manual, Rev. C

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