Seagate ST910021AS,Momentus 7200.1 SATA,ST980825AS,ST96023AS,ST94015AS Product Manual
Users Guide
Momentus 7200.1 SATA
ST910021AS
ST980825AS
ST96023AS
ST94015AS
Users Guide
Momentus 7200.1 SATA
ST910021AS
ST980825AS
ST96023AS
ST94015AS
©2004, 2005 Seagate Technology LLC All rights reserved
Publication number: 100320528, Rev. A
May 2005
Seagate, Seaga te Technology, and the Seagate logo are regi stered trademarks of S eagate
Technology LLC. SeaTools, SeaFONE, SeaBOARD, and SeaTDD are either registered
trademarks or tradema rks of Seaga te Techno logy LLC. O ther produc t names are r egistered
trademarks or trademarks of their owners.
Seagate reserves the right to ch ange, witho ut notice, product offerings or spec ifications . No
part of this publication may be reproduc ed in any form w ithout wr itte n per mi ssio n of Seagate
Technology LLC.
Revision status summary sheet
Revision Date Sheets Affected
Rev. A 05/17/2005 All.
Momentus 7200.1 SATA Product Manual, Rev. A iii
iv Momentus 7200.1 SATA Product Manual, Rev. A
Contents
1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 About the Serial ATA (SATA) 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
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 Deferred spinup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.9.3 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.9.4 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.9.5 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.10.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.10.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.10.3 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.10.4 Altitude. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.10.5 Shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.10.6 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.11 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.12 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.13 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.14 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.14.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.14.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.14.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.15 Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.16 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.3.3 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Momentus 7200.1 SATA Product Manual, Rev. A v
vi Momentus 7200.1 SATA Product Manual, Rev. A
List of Figures
Figure 1. Typical 5V startup and operating current profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 2. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 3. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 4. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Momentus 7200.1 SATA Product Manual, Rev. A vii
1.0 Introduction
This manual describes the functional, mechanical and interface specifications for the following Seagate
Momentus® 7200.1 SATA model drives:
• ST910021AS
• ST980825AS
• ST96023AS
• ST94015AS
These drives provide the following key features:
• 7,200 RPM spindle speed
• 8 Mbyte buffer
• High instantaneous (burst) data-transfer rates (up to 150 Mbytes per second).
• Giant magnetoresistiv e (GMR) recording heads and EPRML technology, provide the drives with increase d
areal density.
• State-of-the-art cache and on-the-fly error-correction algorithms.
• Full-track multiple-sector transfer capability without local processor intervention.
• Quiet operation.
• 800 Gs nonoperating 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.
Momentus 7200.1 SATA Product Manual, Rev. A 1
1.1 About the Serial ATA (SATA) interface
The Serial ATA interface provides several advantages over the traditional (parallel) ATA interface. The primary
advantages include:
• Easy installation and c onfiguration with tru e plug-and- play conn ectivity. 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 t o install a Serial ATA host adapter and Serial ATA disc drive in your curren t
system and expect all of your existing applications to work as normal.
The Serial ATA interface co nnects each disc drive in a point-to-point c onfiguration with the Serial ATA host
adapter. There is no master/slave relationship with Seria l ATA devices like there is with para llel 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 essenti ally mean s both dr ives behav e as if they are Dev ice 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 repres ented to host so ftware as a Device 0 ( maste r) and
Device 1 (slave) acce ssed at the s ame set of ho st bus addr esses. A h ost adapter tha t emulat es a
master/slave environment manages two sets of shadow register s. This is not a typical Serial ATA
environment.
The Serial ATA host adapter and driv e shar e the funct ion of emul ating parall el ATA device beh avior to provid e
backward compatibility with existing host systems an d software. The Command and Contr ol 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 S hado w Register Block. All Se rial ATA devic es beh ave l ik e De vi ce 0 de vi ces . F or add i tional information about how Ser ial ATA emulates parallel ATA, refer to the “Serial ATA: High Speed Serialized
AT Attachment” specification. The specification can be downloaded from http://www.serialata.com.
2 Momentus 7200.1 SATA Product Manual, Rev. A
2.0 Drive specifications
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal
power. For convenience, the phrases t he drive and this drive are used throughout th is manual to indi cate the
ST910021AS, ST980825AS, ST96023AS, and ST94015AS models.
2.1 Specification summary table
The specificatio ns lis ted in th is table ar e for quick reference. F or de tails on s pec i ficati on me as ur eme nt o r de finition, see the appropriate section of this manual.
Table 1: Drive specifications
Drive specification ST910021AS ST980825AS ST96023AS ST94015AS
Formatted Gbytes (512 bytes/sector) 100 80 60 40
Guaranteed sectors 195,371,568 156,301,488 117,210,240 78,140,160
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Physical read/write heads 4 4 3 2
Discs 2 2 2 1
Recording density in BPI (bits/inch max) 700,000
Track density TPI (tracks/inch max) 114,0 00
Areal density (Gbits/inch2 max) 81
Spindle speed (RPM) 7,200
Internal transfer rate (Mbits/sec max) 539
Sustained transfer rate OD (Mbytes/sec) 45.8
I/O data transfer rate (Mbytes/sec max) 150 (SATA 1.0)
ATA data-transfer modes supported SATA 1.0, SATA II
Cache buffer (Mbytes) 8
Height (max) 9.5 +/- 0.2 mm (0.374 +/- .0078 inches)
Width (max) 69.85 mm (2.75 +/- 0.0098 inches)
Length (max) 100.5 +/- 1.6 mm (3.957 +/- 0.063 inches)
Weight (typical) 115 grams (0.254 lb)
Average latency (msec) 4.2 msec
Power-on to ready (typical) 4 seconds
Standby to ready (typical) 3 seconds
Startup current (typical) +5V (peak) 1.28 amps
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–5
Momentus 7200.1 SATA Product Manual, Rev. A 3
Table 1: Drive specifications
Drive specification ST910021AS ST980825AS ST96023AS ST94015AS
Track-to-track seek time (msec typical) 1.5 (read), 2.0 (write)
Average seek, read (msec typical) 10.5
Average seek, write (msec typical) 12.5
Seek power (typical) 2.6 watts
Operating power (typical) 2.4 watts
Idle mode, low power (typical) 0.95 watts
Standby mode (typical) 0.28 watts**
Sleep mode 0.28 watts**
Voltage tolerance (including noise) +5V ± 5% / -8% startup
Ambient temperature 5° to 55°C (op.)
Temperature gradient
(°C per hour max)
Relative humidity 5% to 90% (operating)
Relative humidity gradient (non-condensing) 30% per hour max (operating and nonoperating)
Wet bulb temperature
(°C max)
Altitude, operating –304.8 m to 3,048 m
Altitude, nonoperating
(meters below mean sea level, max)
Shock, operating (Gs max at 2 msec) 250
Shock, nonoperating (Gs max at 2 msec) 800
Shock, nonoperating (Gs max at 1 msec) 900
Shock, nonoperating (Gs max at 0.5 msec) 400
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* 2.5 (typical)
Seek 2.9 (typical)
Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) 0.73%
Service life 5 Years
Warranty 5 Years on distribution units.
Load/Unload (L/UL) cycles
40°C, 50% relative humidity
32°C, 80% relative humidity
5°C, 80% relative humidity
5°C, 10% relative humidity
55°C, 16% relative humidity
–40° to 70°C (nonop.)
20°C (operating)
30°C (nonoperating)
5% to 95% (nonoperating)
30°C (operating)
40°C (nonoperating)
(–1000 ft to 10,000+ ft)
–304.8 m to 12,192 m
(–1000 ft to 40,000+ ft)
2.8 (max)
3.1 (max)
14
bits read
To determine the warranty for a specific drive, use a web browser to access the following web page:
www.seagate.com/support/service/
From this page, click on the “V erify Your Warranty” link. You will be asked to provide the
drive serial number, model number (or part number) and country of purchase. The sys
tem will display the warranty information for your drive.
600,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
100,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
-
4 Momentus 7200.1 SATA Product Manual, Rev. A
Table 1: Drive specifications
Drive specification ST910021AS ST980825AS ST96023AS ST94015AS
Supports Hotplug operation per SATA II specification
*During periods of drive idle, some o ffline activity may occur according to th e S.M.A.R.T. specification, which may increase ac oustic 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.
Yes
2.2 Formatted capacity
Model Formatted capacity Guaranteed sectors Bytes per sector
ST910021AS 100 Gbytes 195,371,568 512
ST980825AS 80 Gbytes 156,301,488 512
ST96023AS 60 Gbytes 117,210,240 512
ST94015AS 40 Gbytes 78,140,160 512
2.2.1 LBA mode
When addressing these d rives in LBA mode, all bl ocks (sectors) are c onsecutively numbered fr om 0 to n–1,
where n is the number of guaranteed sectors as defined above.
See Section 4. 3.1, "Id enti fy Dev i ce co mma nd" ( wor ds 60 -6 1 a nd 1 00- 10 3) for a ddi tio nal in for ma tio n ab out 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 these d rives in LBA mode, all bl ocks (sectors) are c onsecutively numbered fr om 0 to n–1,
where n is the number of guaranteed sectors as defined above.
Momentus 7200.1 SATA Product Manual, Rev. A 5
2.4 Physical organization
Drive model Read/write heads Number of discs
ST910021AS 4 2
ST980825AS 4 2
ST96023AS 3 2
ST94015AS 2 1
2.5 Recording and interface technology
Interface Serial ATA (SATA)
Recording method 16/17 EPRML
Recording density BPI (bits/inch max) 700,000
Track density TPI (tracks/inch max) 114,000
Areal density (Mbits/inch2 max) 81
Spindle speed (RPM) (± 0.2%) 7,200
Maximum Internal transfer rate (Mbits/sec) 539
Sustained transfer rate OD (Mbytes/sec max) 45.8
I/O data-transfer rate (Mbytes/sec max) 150 (SATA 1.0)
Interleave 1:1
Cache buffer 8 Mbytes (8,192 kbytes)
2.6 Physical characteristics
Drive specification
Height (mm)
(inches)
Width (mm)
(inches)
Length (mm)
(inches)
Typical w eig ht (grams)
(pounds)
9.5 +/-0. 2
0.374 +/-0.0078
69.85 +/-0.25
2.75 +/-0.0098
100.5+/-1.6
3.957 +/- 0.063
115 grams
(0.254 lb)
6 Momentus 7200.1 SATA Product Manual, Rev. A
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