Seagate S ST91603010AS, ST92503010A User Manual
Product Manual
Momentus® Thin Series SATA
ST92503010AS
ST91603010AS
100586949
Rev. B
March 2010
Revision history
Revision Date Sheets affected or comments
Rev. A 10/21/09 Initial release.
Rev. B 03/02/10 3-4, 10 & 35.
Copyright © 2010 Seagate Technology LLC. All rights reserved. Printed in U.S.A.
Publication number: 100586949, Rev. B March 2010
Seagate, Seagate Technology and the Wave logo a re re gistered tradema rks of Seagate Technology LLC
in the United States and/or other countries. Momentus and SeaTools are either trade mar ks or regi stered
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 own
ers. No part of this publication may be reproduced in any form without written permission of Seagate
Technology LLC.
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.6 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.7 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.8 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.9 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.9.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.9.2 Deferred spinup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.9.3 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.9.4 Voltage tolerance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.9.5 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.10 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10.3 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10.4 Altitude. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10.5 Shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.10.6 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.11 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.12 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.13 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.14 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.14.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.14.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.14.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.15 Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.15.1 European Union Restriction of Hazardous Substances (RoHS) . . . . . . . . . . . . 15
2.15.2 China Restriction of Hazardous Substances (RoHS) Directive . . . . . . . . . . . . . 15
2.16 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.3.3 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Momentus Thin Series SATA Product Manual, Rev. B i
ii Momentus Thin Series SATA Product Manual, Rev. B
List of Figures
Figure 1. Typical +5V only startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 2. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 3. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 4. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Momentus Thin Series SATA Product Manual, Rev. B iii
1.0 Introduction
This manual describes the functional, mechanical and interface specifications for the following Seagate
Momentus
• ST92503010AS
• ST91603010AS
These drives provide the following key features:
• 5400-RPM spindle speed.
• 8-MB buffer.
• Quiet operation. Fluid Dynamic Bearing (FDB) motor.
• High instantaneous (burst) data-transfer rates (up to 3Gb/s).
• 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 disk drives.
• Support for S.M.A.R.T. drive monitoring and reporting.
• Support for Read Multiple and Write Multiple commands.
®
Thin Series SATA model drives:
Momentus Thin Series SATA Product Manual, Rev. B 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 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 disk drive in your current
system and expect all of your existing applications to work as normal.
The Serial ATA interface connects each disk 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 reg isters, 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.
2 Momentus Thin Series SATA Product Manual, Rev. B
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
ST92503010AS and ST91603010AS models.
2.1 Specification 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
Drive specification ST92503010AS ST91603010AS
Formatted GB (512 bytes/sector)* 250 160
Guaranteed sectors 488,397,168 312,581,808
Bytes per sector 512
Physical read/write heads 2
Discs 1
Cache (MB) 8
Recording density in BPI (bits/in avg) 1434k
Track density TPI (tracks/in avg) 265k
2
Areal density (Gb/in
Spindle speed (RPM) 5400
Average latency (ms) 5.6
Internal transfer rate (Mb/s max) 1175
I/O data transfer rate (MB/s max) 300
ATA data-transfer modes supported SATA 1.0, Serial ATA Revision 2.6
Height (max) 7.0 mm (0.276 in)
Width (max) 70.10 mm (2.76 in)
Length (max) 100.55 mm (3.959 in)
Weight (max) <92.0 g (<0.203 lb)
Power-on to ready (sec typical) 3.4
Standby to ready (sec typical) 1.8
Track-to-track seek time, read (ms typical) 1
Average seek, read (ms typical) 14
Full-stroke seek, read (ms) 30 (max)
Startup current, +5V (max) 1.0A
Read/write power (typical) Read: 1.4W; Write: 1.78W
avg) 380
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
Momentus Thin Series SATA Product Manual, Rev. B 3
Table 1: Drive specifications
Drive specification ST92503010AS ST91603010AS
Idle mode, low power (typical) 0.58W
Standby mode 0.20W (typical)***
Sleep mode 0.20W (typical)***
Voltage tolerance (including noise) +5V ± 10%
Ambient temperature 0° to 60°C (operating), –40° to 70°C (nonoperating)
Temperature gradient
(°C per hour max)
Relative humidity 5% to 95% (operating)
Relative humidity gradient 30% per hour max
Wet bulb temperature
(°C max)
Altitude, operating –304.8 m to 3,048 m (–1000 ft. to 10,000
Altitude, nonoperating
(meters below mean sea level, max)
Shock, operating (Gs max at 2ms) 350
Shock, nonoperating (Gs max at 2ms) 800
Shock, nonoperating (Gs max at 1ms) 1000
Shock, nonoperating (Gs max at 0.5ms) 600
Vibration, operating (Swept Sine) 1.0 Gs (0 to peak, 5–500 Hz)
Vibration, nonoperating 5.0 Gs (0 to peak, 5–500 Hz)
Drive acoustics, sound power (bels)
Idle** 2.0 (typical)
Performance seek 2.4 (typical)
Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) 0.48%
Load/Unload (U/UL) cycles
25°C, 50% relative humidity
32°C, 80% relative humidity
5°C, 80% relative humidity
5°C, 10% relative humidity
55°C, 16% relative humidity
Warranty To determine the warranty for a specific drive, use a web browser to access the follow-
Supports Hotplug operation per Serial ATA
Revision 2.6 specification
20°C (operating)
35°C (nonoperating)
5% to 95% (nonoperating)
37.7 (operating)
40 (nonoperating)
+ ft.)
–304.8 m to 12,192 m (–1000 ft. to 40,000
2.2 (max)
2.5 (max)
14
bits read
600,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
600,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
ing web page: support.sea
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 (requires COMPRESET from host after a hotplug event)
gate.com/customer/warranty_validation.jsp
+ ft.)
*One GB 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.
4 Momentus Thin Series SATA Product Manual, Rev. B
2.2 Formatted capacity
Model Formatted capacity* Guaranteed sectors Bytes per sector
ST92503010AS 250 GB 488,397,168
ST91603010AS 160 GB 312,581,808
*One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment
and formatting.
512
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 137 GB.
2.3 Default 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.
2.4 Physical organization
Drive model Read/write heads Number of discs
ST92503010AS
ST91603010AS
2 1
2.5 Recording and interface technology
Interface Serial ATA (SATA)
Recording method Perpendicular
Recording density BPI (bits/in avg) 1434k
Track density TPI (tracks/in avg) 265k
Areal density (Gb/in2 avg) 380
Spindle speed (RPM) (± 0.2%) 5400
Maximum Internal transfer rate (Mb/s) 1175
I/O data-transfer rate (MB/s max) 300
Interleave 1:1
Cache buffer 8 MB (8,192 KB)
Momentus Thin Series SATA Product Manual, Rev. B 5
2.6 Physical characteristics
Drive specification
Height (mm)
(in)
Width (mm)
(in)
Length (mm)
(in)
Weight (max)
ST92503010AS and ST91603010AS
6.8 +/-0.2
0.268 +/-0.0079
69.85 +/-0.25
2.75 +/-0.0098
100.35 +0.20/-0.25
3.951 +0.008/-0.010
92.0 g
0.203 lb
2.7 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
• Average seek time is a true statistical random aver
random tracks, less overhead.
Table 2: Typical seek times
Typical seek times (ms) Read
Track-to-track 1
possible single-track seeks in both directions.
age of at least 5000 measurements of seeks between
Average 14
Full-stroke 30 (max)
Average latency 5.56
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.
2.8 Start/stop times
Time to ready Typical
Power-on to Ready (sec) 3.4 3.6
Standby to Ready (sec) 1.8 2.0
Max @ 25
°C
6 Momentus Thin Series SATA Product Manual, Rev. B
2.9 Power specifications
The drive receives DC power (+5V) through a native SATA power connector.
2.9.1 Power consumption
Power requirements for the drives are listed in the t ab le on
page 7. T ypi cal powe r measur ements 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 towar
d a specific position on the disk surface and does
not execute a read or write operation. Servo electr on ics a re active . Seek m ode p ower is measur ed based on
three random seek operations every 100ms. This mode is not typical.
• Read/write
Read/write power is measured with the heads on track, base
power and current
d on three 63 sector read or write operations
every 100ms.
• Idle mode power
Idle mode power is measured with the drive up to spee
d, 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) 1.00A
Seek 1.54W
Read 1.40W
Write 1.78W
Idle, performance* 1.30W
Idle, active* 0.70W
Idle, low power mode* 0.58W
Standby** 0.20W
Sleep 0.20W
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increa se acoustic and
power to operational levels.
**Standby power is measured at steady state (after 200ms from transition)
Momentus Thin Series SATA Product Manual, Rev. B 7
2.9.1.1 Typical current profile
Figure 1. Typical +5V only startup and operation current profile
2.9.2 Deferred spinup
Momentus Thin Series SATA drives do not support the defer
red spinup option. If you require this option, refer
to the Momentus 5400.3 SATA Blade Server family of drives.
2.9.3 Conducted noise
Input noise ripple is measured at the host system powe r
supply across an equivalent 15-ohm resistive load on
the +5 volt line.
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. Equ
ivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write
current.
2.9.4 V oltage tolerance
Voltage tolerance (including noise):
5V
± 10%
8 Momentus Thin Series SATA Product Manual, Rev. B
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