Seagate EE25.2 - Series 80 GB Hard Drive User manual

Product Manual
EE25.2 Series
100448541
Rev. E
December 2008
SATA
ST980817SM
ST980818SM
ST960817SM
ST960818SM
ST940817SM
ST940818SM
ST930817SM
ST930818SM
PATA
ST980817AM
ST980818AM
ST960817AM
ST960818AM
ST940817AM
ST940818AM
ST930817AM
ST930818AM

Copyright © 2007 - 2008 Seagate Technology LLC. All rights reserved. Printed in USA.
Publication number: 100448541, Rev. E, December 2008
Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC
in the United States and/or other countries. EE25 Series is either a trademark or registered trademark 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. Your computer’s oper-
ating 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 stor-
age. Quantitative usage examples for various applications are for illustrative purposes. Actual quantities
will vary based on various factors, including file size, file format, features and application software. Sea-
gate reserves the right to change, without notice, product offerings or specifications.

EE25.2 Series Product Manual, Rev. E i
Contents
1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Specification summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4 Physical organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.5 Recording technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.6 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.7 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.8 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.9 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.9.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.9.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.9.3 Voltage tolerance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.9.4 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.10 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.10.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.10.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.10.3 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.11 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.11.1 Shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.11.2 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.12 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.13 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.14 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.15 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.15.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.15.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.15.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.16 Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.16.1 European Union Restriction of Hazardous Substances (RoHS) . . . . . . . . . . . . 24
2.17 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.0 Mounting and configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.1 Handling and static discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.2 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.3 Breather filter hole precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.4 How to configure the drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.4.1 How to configure and connect Serial ATA (SATA) drives . . . . . . . . . . . . . . . . . 28
3.4.2 How to configure Parallel ATA (PATA) drives . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.0 Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.1 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.1.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.1.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . 32
4.2 Parallel ATA (ATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.2.1 PATA interface signals and connector pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.4 Identify Device command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.5 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4.6 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

ii EE25.2 Series Product Manual, Rev. E

EE25.2 Series Product Manual, Rev. E iii
List of Figures
Figure 1. Typical 5V startup and operation current profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 2. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 3. Breather filter hole location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 4. SATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 5. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 6. Jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

iv EE25.2 Series Product Manual, Rev. E

EE25.2 Series Product Manual, Rev. E 1
1.0 Introduction
This manual describes the functional, mechanical and interface specifications for the following Seagate®
EE25.2 Series drives:
These drives provide the following key features:
• Extreme operating environment capabilities:
• 5,400-RPM spindle speed and 8-Mbyte buffer combine for superior performance.
• Quiet operation. Fluid Dynamic Bearing (FDB) motor.
• High instantaneous (burst) data transfer rates (up to 3 Gbytes per second) using SATA interface.
• Giant magnetoresistive (GMR) recording heads and EPRML technology, which provide the drives with
increased areal density.
• State-of-the-art cache and on-the-fly error-correction algorithms.
• Full-track multiple-sector transfer capability without local processor intervention.
Market Capacity Interface Model
Extreme 80 GBytes PATA ST980817AM
Extreme 80 Gbytes SATA ST980817SM
Extreme 60 Gbytes PATA ST960817AM
Extreme 60 Gbytes SATA ST960817SM
Extreme 40 Gbytes PATA ST940817AM
Extreme 40 Gbytes SATA ST940817SM
Extreme 30 Gbytes PATA ST930817AM
Extreme 30 Gbytes SATA ST930817SM
Rugged 80 GBytes PATA ST980818AM
Rugged 80 Gbytes SATA ST980818SM
Rugged 60 Gbytes PATA ST960818AM
Rugged 60 Gbytes SATA ST960818SM
Rugged 40 Gbytes PATA ST940818AM
Rugged 40 Gbytes SATA ST940818SM
Rugged 30 Gbytes PATA ST930818AM
Rugged 30 Gbytes SATA ST930818SM
Extreme temperature range: -30°C to 85°C
Rugged temperature range: -20°C to 75°C

2 EE25.2 Series Product Manual, Rev. E
•900Gs nonoperating shock and 300 Gs 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.
• PATA models support for autodetection of master/slave drives that use cable select (CSEL).

EE25.2 Series Product Manual, Rev. E 3
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 to indicate the models documented in
this manual.
2.1 Specification summary
The specifications listed in the following two tables are for quick reference. For details on specification mea-
surement or definition, see the appropriate section of this manual.

4 EE25.2 Series Product Manual, Rev. E
Table 1: Specifications for 80 Gbyte models
Drive specification ST980817AM
(Extreme) ST980818AM (Rugged) ST980817SM (Extreme) ST980818SM (Rugged)
Formatted (512 bytes/sector)* 80 Gbytes
Guaranteed sectors 156,301,488
Interface PATA SATA
Bytes per sector 512
Physical read/write heads 2
Discs 1
Cache 8 Mbytes
Recording density, BPI 840k bits/inch (typical)
Track density. TPI 150k tracks/inch (typical)
Areal density 126 Gbits/inch2 (typical)
Spindle speed 5,400 RPM
Internal data transfer rate 450 Mbits/sec max
I/O data transfer rate 100 Mbytes/sec Up to 3 Gbits/sec
Sustained throughput, typical (nominal operating conditions) 45 Mbytes/sec maximum
ATA data-transfer modes supported PIO modes 0–4; Multiword DMA modes 0–2; Ultra DMA modes 0–5
Height 9.5 +/-0.2 mm (0.374 +/-.008 inches)
Width 69.85 +/-0.25 mm (2.750 +/-0.010 inches)
Length 100.2 +/-0.25 mm
(3.945 +/-0.010 inches) 100.5 +/- 1.58 mm (3.957 +/- 0.062 inches)
Weight 102 grams (0.22 lb) (maximum)
Average latency 5.6 msec
Power-on to ready
-20 to 85°C for extreme models (75°C for rugged models)
-30 to -20°C (extreme models only)
3 sigma maximum at extreme cold temperature
3.0 seconds (typical), 5 seconds (max)
12 seconds (typical)
<30 seconds
Standby to ready
-20 to 85°C for extreme models (75°C for rugged models)
-30 to -20°C (extreme models only)
3 sigma maximum at extreme cold temperature
3.0 seconds (typical), 5 seconds (max)
12 seconds (typical)
<30 seconds
Track-to-track seek time 1.0 msec (read, typical), 1.5 msec (write, typical)
Average seek time (random) 12.5 msec (typical), 14 msec (max)
Average seek, read (random) 13 msec (typical), 14 msec (max)
Average seek, write (random) 14 msec (typical), 15 msec (max)
Full-stroke seek 23 msec (typical); 24 msec (max)
Startup current 5V 1.30 amps (typical)
1.55 amps (max) 1.30 amps (typical) 1.55 amps (max)
Seek power at 25°C 1.65 watts / 0.33 amps (typical) 2.45 watts / 0.49 amps
Read power at 25°C 1.40 watts / 0.28 amps (typical) 3.00 watts / 0.60 amps (typical)
Write power at 25°C 1.50 watts / 0.30 amps (typical) 2.30 watts / 0.46 amps (typical)
Idle mode (active idle at 25°C) 1.65 watts / 0.33 amps (typical) 2.35 watts / 0.47 amps (typical)
Standby mode at 25°C 0.26 watts / 0.05 amps (typical)*** 1.10 watts / 0.22 amps (typical)***
Sleep mode at 25°C 0.26 watts / 0.05 amps (typical)*** 1.10 watts / 0.22 amps (typical)***
Voltage tolerance (including noise) 5V ± 5%
Ambient temperature
Operating
Nonoperating
-30° to 85°C (Extreme); -20° to 75°C (Rugged);
–40° to 95°C (Extreme and Rugged)

EE25.2 Series Product Manual, Rev. E 5
* 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 hostand S4; while in the S3 and S4 states, drive sleep and drive standbymodes will not contribute to battery power consumption.
Temperature gradient
(noncondensing) 20°C/hour (operating) 30°C/hour (nonoperating)
Relative humidity (noncondensing) 5% to 90% (operating)
5% to 95% (nonoperating)
Relative humidity gradient (noncondensing) 30% per hour max
Wet bulb temperature 30°C (operating, max)
40°C (nonoperating, max)
Altitude, operating (Extreme models: -30°C to 85°C)
Altitude, operating (Rugged models: -20°C to 75°C) –304.8 m to 5,500 m (–1000 ft to 18,100 ft)
Altitude, nonoperating (below mean sea level, max) –304.8 m to 12,192 m (–1,000 ft to 40,000 ft)
Shock, operating
at 2 msec
at 11 msec
300 Gs max
150 Gs max
Shock, nonoperating
at 2 msec
at 1 msec
at 0.5 msec
800 Gs max
900 Gs max
400 Gs max
Vibration, operating (linear swept sine)
(max displacement may apply below 10 hz) 2.0 Gs (0 to peak, 5–500 Hz); (X, Y, Z axis, 45° angles)
Vibration, nonoperating (linear swept sine)
(max displacement may apply below 22 hz) 5.0 Gs (0 to peak, 5–500 Hz); (X, Y, Z axis, 45° angles)
Vibration, operating (linear random) .003 G2/hz (5–500 Hz); (X, Y, Z axis, 45° angles)
Vibration, nonoperating (linear random) .025 G2/Hz, 3.5 Grms (5–500 Hz); (X, Y, Z axis, 45° angles)
Drive acoustics, sound power
Idle** 1.7 Bels (typical)
1.9 Bels (max)
Seek 1.9 Bels (typical)
2.1 Bels (max)
Nonrecoverable read errors 1 per 1014 bits read
Mean Time Before Failure (MTBF) 1,000,000 power-on hours
At 8,760 POH (Power On Hours) per year
Max ambient air temperature: 25°C.
Load/Unload (U/UL) cycles
25°C, 50% relative humidity
-30°C, 0% relative humidity (extreme models)
85°C, 20% relative humidity (extreme models)
-20°C, 0% relative humidity (rugged models)
75°C, 20% relative humidity (rugged models)
1,200,000 software-controlled power on/off cycles
100,000 hard power on/off cycles
300,000 software-controlled
100,000 hard power on/off cycles
300,000 software-controlled
100,000 hard power on/off cycles
Service life 10 years (form, fit, and function replacement)
Warranty To determine the warranty for a specific drive, use a web browser to
access the follow-ing web page:
support.seagate.com/customer/warranty_validation.jsp
You will be asked to provide the drive serial number, model number (or
part number) and country of purchase.
After submitting this information, the system will display the warranty
information for your drive.
Drive specification ST980817AM
(Extreme) ST980818AM (Rugged) ST980817SM (Extreme) ST980818SM (Rugged)

6 EE25.2 Series Product Manual, Rev. E
Table 2: Specifications for 60 Gbyte models
Drive specification ST960817AM
(Extreme) ST960818AM (Rugged) ST960817SM (Extreme) ST960818SM (Rugged)
Formatted (512 bytes/sector)* 60 Gbytes
Guaranteed sectors 117,210,240
Interface PATA SATA
Bytes per sector 512
Physical read/write heads 2
Discs 1
Cache 8 Mbytes
Recording density, BPI 840k bits/inch (typical)
Track density. TPI 150k tracks/inch (typical)
Areal density 126 Gbits/inch2 (typical)
Spindle speed 5,400 RPM
Internal data transfer rate 450 Mbits/sec max
I/O data transfer rate 100 Mbytes/sec Up to 3 Gbits/sec
Sustained throughput, typical (nominal operating conditions) 45 Mbytes/sec maximum
ATA data-transfer modes supported PIO modes 0–4; Multiword DMA modes 0–2; Ultra DMA modes 0–5
Height 9.5 +/-0.2 mm (0.374 +/-.008 inches)
Width 69.85 +/-0.25 mm (2.750 +/-0.010 inches)
Length 100.2 +/-0.25 mm
(3.945 +/-0.010 inches) 100.5 +/- 1.58 mm (3.957 +/- 0.062 inches)
Weight 102 grams (0.22 lb) (maximum)
Average latency 5.6 msec
Power-on to ready
-20 to 85°C for extreme models (75°C for rugged models)
-30 to -20°C (extreme models only)
3 sigma maximum at extreme cold temperature
3.0 seconds (typical), 5 seconds (max)
12 seconds (typical)
<30 seconds
Standby to ready
-20 to 85°C for extreme models (75°C for rugged models)
-30 to -20°C (extreme models only)
3 sigma maximum at extreme cold temperature
3.0 seconds (typical), 5 seconds (max)
12 seconds (typical)
<30 seconds
Track-to-track seek time 1.0 msec (read, typical), 1.5 msec (write, typical)
Average seek time (random) 12.5 msec (typical), 14 msec (max)
Average seek, read (random) 13 msec (typical), 14 msec (max)
Average seek, write (random) 14 msec (typical), 15 msec (max)
Full-stroke seek 23 msec (typical); 24 msec (max)
Startup current 5V 1.30 amps (typical)
1.55 amps (max) 1.30 amps (typical) 1.55 amps (max)
Seek power at 25°C 1.65 watts / 0.33 amps (typical) 2.45 watts / 0.49 amps
Read power at 25°C 1.40 watts / 0.28 amps (typical) 3.00 watts / 0.60 amps (typical)
Write power at 25°C 1.50 watts / 0.30 amps (typical) 2.30 watts / 0.46 amps (typical)
Idle mode (active idle at 25°C) 1.65 watts / 0.33 amps (typical) 2.35 watts / 0.47 amps (typical)
Standby mode at 25°C 0.26 watts / 0.05 amps (typical)*** 1.10 watts / 0.22 amps (typical)***
Sleep mode at 25°C 0.26 watts / 0.05 amps (typical)*** 1.10 watts / 0.22 amps (typical)***
Voltage tolerance (including noise) 5V ± 5%
Ambient temperature
Operating
Nonoperating
-30° to 85°C (Extreme); -20° to 75°C (Rugged);
–40° to 95°C (Extreme and Rugged)

EE25.2 Series Product Manual, Rev. E 7
* 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 host systems 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.
Temperature gradient
(noncondensing) 20°C/hour (operating) 30°C/hour (nonoperating)
Relative humidity (noncondensing) 5% to 90% (operating)
5% to 95% (nonoperating)
Relative humidity gradient (noncondensing) 30% per hour max
Wet bulb temperature 30°C (operating, max)
40°C (nonoperating, max)
Altitude, operating (Extreme models: -30°C to 85°C)
Altitude, operating (Rugged models: -20°C to 75°C) –304.8 m to 5,500 m (–1000 ft to 18,100 ft)
Altitude, nonoperating (below mean sea level, max) –304.8 m to 12,192 m (–1,000 ft to 40,000 ft)
Shock, operating
at 2 msec
at 11 msec
300 Gs max
150 Gs max
Shock, nonoperating
at 2 msec
at 1 msec
at 0.5 msec
800 Gs max
900 Gs max
400 Gs max
Vibration, operating (linear swept sine)
(max displacement may apply below 10 hz) 2.0 Gs (0 to peak, 5–500 Hz); (X, Y, Z axis, 45° angles)
Vibration, nonoperating (linear swept sine)
(max displacement may apply below 22 hz) 5.0 Gs (0 to peak, 5–500 Hz); (X, Y, Z axis, 45° angles)
Vibration, operating (linear random) .003 G2/hz (5–500 Hz); (X, Y, Z axis, 45° angles)
Vibration, nonoperating (linear random) .025 G2/Hz, 3.5 Grms (5–500 Hz); (X, Y, Z axis, 45° angles)
Drive acoustics, sound power
Idle** 1.7 Bels (typical)
1.9 Bels (max)
Seek 1.9 Bels (typical)
2.1 Bels (max)
Nonrecoverable read errors 1 per 1014 bits read
Mean Time Before Failure (MTBF) 1,000,000 power-on hours
At 8,760 POH (Power On Hours) per year
Max ambient air temperature: 25°C.
Load/Unload (U/UL) cycles
25°C, 50% relative humidity
-30°C, 0% relative humidity (extreme models)
85°C, 20% relative humidity (extreme models)
-20°C, 0% relative humidity (rugged models)
75°C, 20% relative humidity (rugged models)
1,200,000 software-controlled power on/off cycles
100,000 hard power on/off cycles
300,000 software-controlled
100,000 hard power on/off cycles
300,000 software-controlled
100,000 hard power on/off cycles
Service life 10 years (form, fit, and function replacement)
Warranty To determine the warranty for a specific drive, use a web browser to
access the follow-ing web page:
support.seagate.com/customer/warranty_validation.jsp
You will be asked to provide the drive serial number, model number (or
part number) and country of purchase.
After submitting this information, the system will display the warranty
information for your drive.
Drive specification ST960817AM
(Extreme) ST960818AM (Rugged) ST960817SM (Extreme) ST960818SM (Rugged)

8 EE25.2 Series Product Manual, Rev. E
Table 3: Specifications for 40 Gbyte models
Drive specification ST940817AM
(Extreme) ST940818AM (Rugged) ST940817SM (Extreme) ST940818SM (Rugged)
Formatted (512 bytes/sector)* 40 Gbytes
Guaranteed sectors 78,140,160
Interface PATA SATA
Bytes per sector 512
Physical read/write heads 1
Discs 1
Cache 8 Mbytes
Recording density, BPI 840k bits/inch (typical)
Track density. TPI 150k tracks/inch (typical)
Areal density 126 Gbits/inch2 (typical)
Spindle speed 5,400 RPM
Internal data transfer rate 450 Mbits/sec max
I/O data transfer rate 100 Mbytes/sec Up to 3 Gbits/sec
Sustained throughput, typical (nominal operating conditions) 45 Mbytes/sec maximum
ATA data-transfer modes supported PIO modes 0–4; Multiword DMA modes 0–2; Ultra DMA modes 0–5
Height 9.5 +/-0.2 mm (0.374 +/-.008 inches)
Width 69.85 +/-0.25 mm (2.750 +/-0.010 inches)
Length 100.2 +/-0.25 mm
(3.945 +/-0.010 inches) 100.5 +/- 1.58 mm (3.957 +/- 0.062 inches)
Weight 102 grams (0.22 lb) (maximum)
Average latency 5.6 msec
Power-on to ready
-20 to 85°C for extreme models (75°C for rugged models)
-30 to -20°C (extreme models only)
3 sigma maximum at extreme cold temperature
3.0 seconds (typical), 5 seconds (max)
12 seconds (typical)
<30 seconds
Standby to ready
-20 to 85°C for extreme models (75°C for rugged models)
-30 to -20°C (extreme models only)
3 sigma maximum at extreme cold temperature
3.0 seconds (typical), 5 seconds (max)
12 seconds (typical)
<30 seconds
Track-to-track seek time 1.0 msec (read, typical), 1.5 msec (write, typical)
Average seek time (random) 12.5 msec (typical), 14 msec (max)
Average seek, read (random) 13 msec (typical), 14 msec (max)
Average seek, write (random) 14 msec (typical), 15 msec (max)
Full-stroke seek 23 msec (typical); 24 msec (max)
Startup current 5V 1.30 amps (typical)
1.55 amps (max) 1.30 amps (typical) 1.55 amps (max)
Seek power at 25°C 1.65 watts / 0.33 amps (typical) 2.45 watts / 0.49 amps
Read power at 25°C 1.40 watts / 0.28 amps (typical) 3.00 watts / 0.60 amps (typical)
Write power at 25°C 1.50 watts / 0.30 amps (typical) 2.30 watts / 0.46 amps (typical)
Idle mode (active idle at 25°C) 1.65 watts / 0.33 amps (typical) 2.35 watts / 0.47 amps (typical)
Standby mode at 25°C 0.26 watts / 0.05 amps (typical)*** 1.10 watts / 0.22 amps (typical)***
Sleep mode at 25°C 0.26 watts / 0.05 amps (typical)*** 1.10 watts / 0.22 amps (typical)***
Voltage tolerance (including noise) 5V ± 5%
Ambient temperature
Operating
Nonoperating
-30° to 85°C (Extreme); -20° to 75°C (Rugged);
–40° to 95°C (Extreme and Rugged)

EE25.2 Series Product Manual, Rev. E 9
* 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 host systems 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.
Temperature gradient
(noncondensing) 20°C/hour (operating) 30°C/hour (nonoperating)
Relative humidity (noncondensing) 5% to 90% (operating)
5% to 95% (nonoperating)
Relative humidity gradient (noncondensing) 30% per hour max
Wet bulb temperature 30°C (operating, max)
40°C (nonoperating, max)
Altitude, operating (Extreme models: -30°C to 85°C)
Altitude, operating (Rugged models: -20°C to 75°C) –304.8 m to 5,500 m (–1000 ft to 18,100 ft)
Altitude, nonoperating (below mean sea level, max) –304.8 m to 12,192 m (–1,000 ft to 40,000 ft)
Shock, operating
at 2 msec
at 11 msec
300 Gs max
150 Gs max
Shock, nonoperating
at 2 msec
at 1 msec
at 0.5 msec
800 Gs max
900 Gs max
400 Gs max
Vibration, operating (linear swept sine)
(max displacement may apply below 10 hz) 2.0 G (0 to peak, 5–500 Hz); (X, Y, Z axis, 45° angles)
Vibration, nonoperating (linear swept sine)
(max displacement may apply below 22 hz) 5.0 Gs (0 to peak, 5–500 Hz); (X, Y, Z axis, 45° angles)
Vibration, operating (linear random) .003 G2/hz (5–500 Hz); (X, Y, Z axis, 45° angles)
Vibration, nonoperating (linear random) .025 G2/Hz, 3.5 Grms (5–500 Hz); (X, Y, Z axis, 45° angles)
Drive acoustics, sound power
Idle** 1.7 Bels (typical)
1.9 Bels (max)
Seek 1.9 Bels (typical)
2.1 Bels (max)
Nonrecoverable read errors 1 per 1014 bits read
Mean Time Before Failure (MTBF) 1,000,000 power-on hours
At 8,760 POH (Power On Hours) per year
Max ambient air temperature: 25°C.
Load/Unload (U/UL) cycles
25°C, 50% relative humidity
-30°C, 0% relative humidity (extreme models)
85°C, 20% relative humidity (extreme models)
-20°C, 0% relative humidity (rugged models)
75°C, 20% relative humidity (rugged models)
1,200,000 software-controlled power on/off cycles
100,000 hard power on/off cycles
300,000 software-controlled
100,000 hard power on/off cycles
300,000 software-controlled
100,000 hard power on/off cycles
Service life 10 years (form, fit, and function replacement)
Warranty To determine the warranty for a specific drive, use a web browser to
access the follow-ing web page:
support.seagate.com/customer/warranty_validation.jsp
You will be asked to provide the drive serial number, model number (or
part number) and country of purchase.
After submitting this information, the system will display the warranty
information for your drive.
Drive specification ST940817AM
(Extreme) ST940818AM (Rugged) ST940817SM (Extreme) ST940818SM (Rugged)

10 EE25.2 Series Product Manual, Rev. E
Table 4: Specifications for 30 Gbyte models
Drive specification ST930817AM
(Extreme) ST930818AM (Rugged) ST930817SM (Extreme) ST930818SM (Rugged)
Formatted (512 bytes/sector)* 30 Gbytes
Guaranteed sectors 58,605,120
Interface PATA SATA
Bytes per sector 512
Physical read/write heads 1
Discs 1
Cache 8 Mbytes
Recording density, BPI 840k bits/inch (typical)
Track density. TPI 150k tracks/inch (typical)
Areal density 126 Gbits/inch2 (typical)
Spindle speed 5,400 RPM
Internal data transfer rate 450 Mbits/sec max
I/O data transfer rate 100 Mbytes/sec Up to 3 Gbits/sec
Sustained throughput, typical (nominal operating conditions) 45 Mbytes/sec maximum
ATA data-transfer modes supported PIO modes 0–4; Multiword DMA modes 0–2; Ultra DMA modes 0–5
Height 9.5 +/-0.2 mm (0.374 +/-.008 inches)
Width 69.85 +/-0.25 mm (2.750 +/-0.010 inches)
Length 100.2 +/-0.25 mm
(3.945 +/-0.010 inches) 100.5 +/- 1.58 mm (3.957 +/- 0.062 inches)
Weight 102 grams (0.22 lb) (maximum)
Average latency 5.6 msec
Power-on to ready
-20 to 85°C for extreme models (75°C for rugged models)
-30 to -20°C (extreme models only)
3 sigma maximum at extreme cold temperature
3.0 seconds (typical), 5 seconds (max)
12 seconds (typical)
<30 seconds
Standby to ready
-20 to 85°C for extreme models (75°C for rugged models)
-30 to -20°C (extreme models only)
3 sigma maximum at extreme cold temperature
3.0 seconds (typical), 5 seconds (max)
12 seconds (typical)
<30 seconds
Track-to-track seek time 1.0 msec (read, typical), 1.5 msec (write, typical)
Average seek time (random) 12.5 msec (typical), 14 msec (max)
Average seek, read (random) 13 msec (typical), 14 msec (max)
Average seek, write (random) 14 msec (typical), 15 msec (max)
Full-stroke seek 23 msec (typical); 24 msec (max)
Startup current 5V 1.30 amps (typical)
1.55 amps (max) 1.30 amps (typical) 1.55 amps (max)
Seek power at 25°C 1.65 watts / 0.33 amps (typical) 2.45 watts / 0.49 amps
Read power at 25°C 1.40 watts / 0.28 amps (typical) 3.00 watts / 0.60 amps (typical)
Write power at 25°C 1.50 watts / 0.30 amps (typical) 2.30 watts / 0.46 amps (typical)
Idle mode (active idle at 25°C) 1.65 watts / 0.33 amps (typical) 2.35 watts / 0.47 amps (typical)
Standby mode at 25°C 0.26 watts / 0.05 amps (typical)*** 1.10 watts / 0.22 amps (typical)***
Sleep mode at 25°C 0.26 watts / 0.05 amps (typical)*** 1.10 watts / 0.22 amps (typical)***
Voltage tolerance (including noise) 5V ± 5%
Ambient temperature
Operating
Nonoperating
-30° to 85°C (Extreme); -20° to 75°C (Rugged);
–40° to 95°C (Extreme and Rugged)

EE25.2 Series Product Manual, Rev. E 11
* 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 host systems 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.
Temperature gradient
(noncondensing) 20°C/hour (operating) 30°C/hour (nonoperating)
Relative humidity (noncondensing) 5% to 90% (operating)
5% to 95% (nonoperating)
Relative humidity gradient (noncondensing) 30% per hour max
Wet bulb temperature 30°C (operating, max)
40°C (nonoperating, max)
Altitude, operating (Extreme models: -30°C to 85°C)
Altitude, operating (Rugged models: -20°C to 75°C) –304.8 m to 5,500 m (–1000 ft to 18,100 ft)
Altitude, nonoperating (below mean sea level, max) –304.8 m to 12,192 m (–1,000 ft to 40,000 ft)
Shock, operating
at 2 msec
at 11 msec
300 Gs max
150 Gs max
Shock, nonoperating
at 2 msec
at 1 msec
at 0.5 msec
800 Gs max
900 Gs max
400 Gs max
Vibration, operating (linear swept sine)
(max displacement may apply below 10 hz) 2.0 Gs (0 to peak, 5–500 Hz); (X, Y, Z axis, 45° angles)
Vibration, nonoperating (linear swept sine)
(max displacement may apply below 22 hz) 5.0 Gs (0 to peak, 5–500 Hz); (X, Y, Z axis, 45° angles)
Vibration, operating (linear random) .003 G2/hz (5–500 Hz); (X, Y, Z axis, 45° angles)
Vibration, nonoperating (linear random) .025 G2/Hz, 3.5 Grms (5–500 Hz); (X, Y, Z axis, 45° angles)
Drive acoustics, sound power
Idle** 1.7 Bels (typical)
1.9 Bels (max)
Seek 1.9 Bels (typical)
2.1 Bels (max)
Nonrecoverable read errors 1 per 1014 bits read
Mean Time Before Failure (MTBF) 1,000,000 power-on hours
At 8,760 POH (Power On Hours) per year
Max ambient air temperature: 25°C.
Load/Unload (U/UL) cycles
25°C, 50% relative humidity
-30°C, 0% relative humidity (extreme models)
85°C, 20% relative humidity (extreme models)
-20°C, 0% relative humidity (rugged models)
75°C, 20% relative humidity (rugged models)
1,200,000 software-controlled power on/off cycles
100,000 hard power on/off cycles
300,000 software-controlled
100,000 hard power on/off cycles
300,000 software-controlled
100,000 hard power on/off cycles
Service life 10 years (form, fit, and function replacement)
Warranty To determine the warranty for a specific drive, use a web browser to
access the follow-ing web page:
support.seagate.com/customer/warranty_validation.jsp
You will be asked to provide the drive serial number, model number (or
part number) and country of purchase.
After submitting this information, the system will display the warranty
information for your drive.
Drive specification ST930817AM
(Extreme) ST930818AM (Rugged) ST930817SM (Extreme) ST930818SM (Rugged)

12 EE25.2 Series Product Manual, Rev. E
2.2 Formatted capacity
*OneGbyteequals onebillionbytes whenreferringtoharddrivecapacity. Accessiblecapacity mayvarydependingonoperatingenvironment
and formatting.
2.3 Default logical geometry
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.
Model Formatted capacity* Guaranteed sectors Bytes per sector
ST980817AM 80 Gbytes 156,301,488 512
ST980818AM 80 Gbytes 156,301,488 512
ST980817SM 80 Gbytes 156,301,488 512
ST980818SM 80 Gbytes 156,301,488 512
ST960817AM 60 Gbytes 117,210,240 512
ST960818AM 60 Gbytes 117,210,240 512
ST960817SM 60 Gbytes 117,210,240 512
ST960818SM 60 Gbytes 117,210,240 512
ST940817AM 40 Gbytes 78,140,160 512
ST940818AM 40 Gbytes 78,140,160 512
ST940817SM 40 Gbytes 78,140,160 512
ST940818SM 40 Gbytes 78,140,160 512
ST930817AM 30 Gbytes 58,605,120 512
ST930818AM 30 Gbytes 58,605,120 512
ST930817SM 30 Gbytes 58,605,120 512
ST930818SM 30 Gbytes 58,605,120 512
Cylinders Read/write heads Sectors per track
16,383 16 63

EE25.2 Series Product Manual, Rev. E 13
2.4 Physical organization
2.5 Recording technology
Model Read/write heads Number of disks
ST980817AM 2 1
ST980818AM 2 1
ST980817SM 2 1
ST980818SM 2 1
ST960817AM 2 1
ST960818AM 2 1
ST960817SM 2 1
ST960818SM 2 1
ST940817AM 1 1
ST940818AM 1 1
ST940817SM 1 1
ST940818SM 1 1
ST930817AM 1 1
ST930818AM 1 1
ST930817SM 1 1
ST930818SM 1 1
Technology Specification
Recording density BPI 840k bits/inch typical
Track density TPI 150k tracks/inch typical
Areal density 126 Gbits/inch2typical
Spindle speed 5,400 RPM (± 0.2%)
Internal data-transfer rate 450 Mbits/sec max
I/O data transfer rate PATA: 100 Mbytes/sec max
SATA: Up to 3 Gbits/sec max
Sustained throughput, typical (nominal operating conditions) 45 Mbytes/sec maximum
Interleave 1:1
Cache buffer 8 Mbytes (8,192 kbytes)

14 EE25.2 Series Product Manual, Rev. E
2.6 Physical characteristics
2.7 Seek time
Seek measurements are taken with nominal power. All times are measured using drive diagnostics. The spec-
ifications 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.
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 or exceed 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 speci-
fications.
PATA SATA
Height (mm)
(inches) 9.5 +/–0.2 0.374 +/–0.008 9.5 +/–0.2 0.374 +/–0.008
Width (mm)
(inches) 69.85 +/–0.25 2.750 +/–0.010 69.85 +/–0.25 2.750 +/–0.010
Length (mm)
(inches) 100.2 +/–0.25 3.945 +/–0.010 100.5 +/- 1.58 3.957 +/- 0.062
Maximum weight (grams)
(pounds) 102 0.22 102 0.22
Read (all temperatures) Write (all temperatures)
msec msec
Typical Max Typical Max
Track-to-track 0.7 112
Average 13 14 14 15
Full-stroke 23 24 25 27
Average latency 5.6 5.6