Seagate ST90250N1A1ASRK, ST903203N1A2ASRK, ST905003N1A1ASRK, ST9120410AS, ST9120410ASG User Manual

Product Manual

Momentus 7200.4 SATA

ST9500420AS	ST9500420ASG
ST9320423AS	ST9320423ASG
ST9250410AS	ST9250410ASG
ST9160412AS	ST9160412ASG
ST9120410AS	ST9120410ASG
ST980412AS	ST980412ASG

100534376 Rev. C November 2010

© 2010 Seagate Technology LLC. All rights reserved. Publication number: 100534376, Rev. C, November 2010

Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Momentus and SeaTools 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.

No part of this publication may be reproduced in any form without written permission of Seagate Technology LLC. Call 877-PUB-TEK1(877-782-8351) to request permission.

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 measurement 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 table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.4 Physical organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.5 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.6 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.7 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.8 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.9 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.9.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.9.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.9.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.9.4 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.10 Environmental specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.10.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.10.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.10.3 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.10.4 Wet bulb temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.10.5 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.10.6 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.10.7 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.11 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.12 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.13 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.13.1 Free Fall Protection feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.14 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.14.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.14.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.14.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.15 Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.15.1 European Union Restriction of Hazardous Substances (RoHS) . . . . . . . . . . . . 17 2.15.2 China Restriction of Hazardous Substances (RoHS) Directive . . . . . . . . . . . . . 17

2.16 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 4.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 4.3.3 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

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ii	Momentus 7200.4 SATA Product Manual, Rev. C

List of Figures

Figure 1. Typical +5V only startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 2. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 3. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 4. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

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1.0Introduction

This manual describes the functional, mechanical and interface specifications for the following Seagate Momentus® 7200.4 SATA model drives:

Standard models	Free Fall Protection models
ST9500420AS	ST9500420ASG
ST9320423AS	ST9320423ASG
ST9250410AS	ST9250410ASG
ST9160412AS	ST9160412ASG
ST9120410AS	ST9120410ASG
ST980412AS	ST980412ASG

These drives provide the following key features:

•7200-RPM spindle speed.

•16-Mbyte buffer.

•Free Fall Protection (on ST9500420ASG, ST9320423ASG, ST9250410ASG, ST9160412ASG, ST9120410ASG and ST980412ASG models only)

•Quiet operation. Fluid Dynamic Bearing (FDB) motor.

•High instantaneous (burst) data-transfer rates (up to 3.0 Gbits per second).

•Perpendicular recording technology.

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

•Native Command Queuing (NCQ) with command ordering.

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

•1000 Gs nonoperating shock and 350 Gs of operating shock.

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

•The 3D Defense System™, which includes Drive Defense, Data Defense and Diagnostic Defense, offers the industry’s most comprehensive protection for disc drives.

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

•Support for Read Multiple and Write Multiple commands.

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1.1About 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 normally 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 http://www.serialata.org.

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2.0Drive specifications

Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power.

2.1Specification summary table

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

Table 1:	Drive specifications
		ST9500420AS	ST9320423AS		ST9250410AS	ST9160412AS		ST9120410AS	ST980412AS
Drive specification		ST9500420ASG	ST9320423ASG		ST9250410ASG	ST9160412ASG		ST9120410ASG	ST980412ASG
Formatted GB (512 bytes/sector)*		500		320	250		160	120	80
Guaranteed sectors		976,773,168		625,142,448	488,397,168		312,581,808	234,441,648	156,301,488
Bytes per sector		512
Physical read/write heads		4		3/4	2		2	1/2	1
Discs		2		2	1		1	1	1
Cache (Mbytes)		16
Recording density in BPI (max)		1490k
Track density TPI (max)		265k
Areal density (Gb/in2 max)		394
Spindle speed (RPM)		7200
Average latency (msec)		4.17
Internal transfer rate (Gb/s max)		1.23
I/O data transfer rate (Gb/s max)		3.0
ATA data-transfer modes supported		SATA 1.0, Serial ATA Revision 2.6
		PIO modes 0–4
		Multiword DMA modes 0–2
		Ultra DMA modes 0–6
Height (max)		9.5 +/- 0.2 mm (0.370 +/- .008 in)
Width (max)		69.85 +/- 0.25 mm (2.750 +/- 0.010 in)
Length (max)		100.35 +0.20 / -0.25 mm (3.951 +0 .008 / -0.010					in)
Weight (max)		110 grams (0.238 lb)			105 grams (0.227 lb)
Power-on to ready (sec typical)		4.5
Standby to ready (sec typical)		3.0
Track-to-track seek time, read		1.5
(ms typical)
Average seek, read (ms typical)		11.0
Average seek, write (ms typical)		13.0
Startup current, +5V (max)		1.0 amps
Seek power (typical)		2.2 watts

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Table 1:	Drive specifications
		ST9500420AS	ST9320423AS	ST9250410AS	ST9160412AS	ST9120410AS	ST980412AS
Drive specification		ST9500420ASG	ST9320423ASG	ST9250410ASG	ST9160412ASG	ST9120410ASG	ST980412ASG
Read power (typical)		2.1 watts
Write power (typical)		2.2 watts
Idle mode, low power (typical)		0.69 watts
Standby mode		0.20 watts (typical)***
Sleep mode		0.20 watts (typical)***
Voltage tolerance (including noise)		+5V ± 5%
Ambient temperature		0°C to 60°C (operating)
		–40°C to 70°C (nonoperating)
Temperature gradient		20°C (operating), 35°C (nonoperating)
(°C per hour max)
Relative humidity		5% to 95% (operating and nonoperating
Relative humidity gradient		30% per hour max
Wet bulb temperature (°C max)		37.7 (operating)
		40 (nonoperating)
Altitude, operating		–304.8 m to 3048 m (–1000 ft to 10,000+ ft)
Altitude, nonoperating		–304.8 m to 12,192 m (–1000 ft to 40,000+ ft)
(meters below mean sea level, max)
Shock, operating (Gs max at 2 msec)		350
Shock, nonoperating		800
(Gs max at 2 msec)
Shock, nonoperating		1,000
(Gs max at 1 msec)
Shock, nonoperating		600
(Gs max at 0.5 msec)
Vibration, operating		1.0 G (0 to peak, 5–500 Hz)
Vibration, nonoperating		5 Gs (0 to peak, 5–500 Hz)
Drive acoustics, sound power (bels)
Idle**		2.3 (typical)
		2.5 (max)
Performance seek		2.6 (typical)
		2.7 (max)
Nonrecoverable read errors		1 per 1014 bits read
Annualized Failure Rate (AFR)		0.5%
Load/Unload (U/UL) cycles
25°C, 50% relative humidity		600,000 software-controlled power on/off cycles
		50,000 hard power on/off cycles
32°C, 80% relative humidity		600,000 software-controlled power on/off cycles
5°C, 80% relative humidity		50,000 hard power on/off cycles
5°C, 10% relative humidity
55°C, 16% relative humidity
Warranty		For information regarding Warranty Support, visit
		http://www.seagate.com/www/en-us/support/warranty_&_returns_assistance
Supports Hotplug operation per		Yes (requires COMRESET from host after a hotplug event)
Serial ATA Revision 2.6 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.

***Typical notebooks will pull power to the drive when entering S3 and S4; while in the S3 and S4 states, drive sleep and drive standby modes will not contribute to battery power consumption.

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2.2Formatted capacity

Model	Formatted capacity*	Guaranteed sectors	Bytes per sector
ST9500420AS and ST9500420ASG	500 Gbytes	976,773,168	512
ST9320423AS and ST9320423ASG	320 Gbytes	625,142,448	512
ST9250410AS and ST9250410ASG	250 Gbytes	488,397,168	512
ST9160412AS and ST9160412ASG	160 Gbytes	312,581,808	512
ST9120410AS and ST9120410ASG	120 Gbytes	234,441,648	512
ST980412AS and ST980412ASG	80 Gbytes	156,301,488	512

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

2.2.1LBA 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 48bit addressing support of drives with capacities over 137 Gbytes.

2.3Default logical geometry

Cylinders	Read/write heads	Sectors per track
16,383	16	63

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.

2.4Physical organization

Drive model	Read/write heads	Number of discs
ST9500420AS and ST9500420ASG	4	2
ST9320423AS and ST9320423ASG	3/4	2
ST9250410AS and ST9250410ASG	2	1
ST9160412AS and ST9160412ASG	2	1
ST9120410AS and ST9120410ASG	1/2	1
ST980412AS and ST980412ASG	1	1

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2.5Recording and interface technology

Interface	Serial ATA (SATA)
Recording method	Perpendicular
Recording density BPI (bits/inch max)	1490k
Track density TPI (tracks/inch max)	265k
Areal density (Gbits/inch2 max)	394
Spindle speed (RPM) (± 0.2%)	7200
Maximum Internal transfer rate (Gbits/sec)	1.23
I/O data-transfer rate (Gbits/sec max)	3.0
Interleave	1:1
Cache buffer	16 Mbytes (16,384 kbytes)

2.6Physical characteristics

Drive specification
Height	(mm)	9.5 +/-0.2
	(inches)	0.370 +/-0.008
Width	(mm)	69.85 +/-0.25
	(inches)	2.750 +/-0.010
Length	(mm)	100.35 +0.20 / -0.25
	(inches)	3.951 +0.008 / -.010
Typical weight		110 grams
	ST9500420AS
	ST9500420ASG	0.238 pounds
	ST9320423AS
	ST9320423ASG
	ST9250410AS	105 grams
	ST9250410ASG	0.227 pounds
	ST9160412AS
	ST9160412ASG
	ST9120410AS
	ST9120410ASG
	ST980412AS
	ST980412ASG

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2.7Seek 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 5000 measurements of seeks between random tracks, less overhead.

Table 2: Typical seek times

Typical seek times (msec)	Read
Track-to-track	1.5
Average	11.0
Full-stroke	22.0
Average latency	4.17

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.

2.8Start/stop times

Time to ready	Typical	Max @ 25°C
Power-on to Ready (sec)	4.5	5.0
Standby to Ready (sec)	3.0	3.5

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2.9Power specifications

The drive receives DC power (+5V) through a native SATA power connector.

2.9.1Power consumption

Power requirements for the drives are listed in the table on page 8. Typical power measurements are based on an average of drives tested, under nominal conditions, 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.

•Seek mode

During seek mode, the read/write actuator arm moves toward a specific position on the disc surface and does not execute a read or write operation. Servo electronics are active. Seek mode power is measured based on three random seek operations every 100 msecs. This mode is not typical.

•Read/write power and current

Read/write power is measured with the heads on track, based on three 63 sector read or write operations every 100 msecs.

•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.

•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 model

Table 3:	DC power
Power dissipation		+5V input average (25° C)
Spinup (max)		1.0 amps
Seek		2.2 watts
Read		2.1 watts
Write		2.2 watts
Idle, performance*		1.4 watts
Idle, active*		1.0 watts
Idle, low power mode*		0.69 watts
Standby		0.20 watts
Sleep		0.20 watts

*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.

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