Maxtor STM3250824AS, STM3500630AS, STM3320620AS, STM3320820AS, STM3250820AS User Manual
...
Product Manual
DiamondMax 21
STM3500630AS
STM3320620AS
STM3320820AS
STM3250824AS
STM3250820AS
STM3250310AS
STM3160815AS
STM3160215AS
STM380815AS
STM380215AS
STM340215AS
100451230
Rev. C
August 2007
Revision status summary sheet
Revision Date Sheets Affected
Rev. A 03/02/07 Initial Release.
Rev. B 05/10/07 Front cover 1, 3-4, 6-8, 14-16, 22, 26, 29-30 & 36.
Rev. C 08/29/07 1, 3-5, 8-10, 16-21, 24-26, 29, 39 and 41.
Copyright © 2006, 2007 Seagate Technology LLC. All rights reserved. Printed in U.S.A.
Publication number: 100451230, Rev. C August 2007
Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate
Technology LLC in the United States and/or other countries. DiamondMax, MaxBlast, Maxtor
and the Maxtor logo 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.
One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting. Seagate
reserves the right to change, without notice, product offerings or specifications.
Contents
1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Specification summary tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.2.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.4 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.5 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.6 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.7 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.8 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.8.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.8.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.8.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.8.4 Power-management modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.9 Environmental specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.9.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.9.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.9.3 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.9.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.9.5 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.9.6 Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.10 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.11 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.12 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.12.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF) . . . 26
2.13 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.13.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.13.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.13.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.14 Environmental protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.14.1 European Union Restriction of Hazardous Substances (RoHS) Directive . . . . . 28
2.14.2 China Restriction of Hazardous Substances (RoHS) Directive . . . . . . . . . . . . . 28
2.15 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4.3.3 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.0 Maxtor support services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
DiamondMax 21 Serial ATA Product Manual, Rev. C i
ii DiamondMax 21 Serial ATA Product Manual, Rev. C
List of Figures
Figure 1. Typical 5V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Figure 2. Typical 12V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Figure 3. Serial ATA connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Figure 4. Attaching SATA cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Figure 5. Drive dimensions for STM3500630AS, STM3250824AS, STM3250820AS and 320 GB models . . . . . . .31
Figure 6. Drive dimensions for 40-160 GB and STM3250310AS models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
DiamondMax 21 Serial ATA Product Manual, Rev. C iii
1.0 Introduction
This manual describes the functional, mechanical and interface specifications for the following DiamondMax®
21 Serial ATA model drives:
STM3500630AS STM3250824AS STM3160815AS STM380815AS
STM3320620AS STM3250820AS STM3160215AS STM380215AS
STM3320820AS STM3250310AS STM340215AS
These drives provide the following key features:
• 7,200 RPM spindle speed.
• High instantaneous (burst) data-transfer rates (up to 300 Mbytes per second).
• Perpendicular recording, Tunneling Magnetoresistive (TMR) recording heads and EPRML technology, for
increased areal density.
• State-of-the-art cache and on-the-fly error-correction algorithms.
• Native Command Queueing with command ordering to increase performance in demanding applications.
• Full-track multiple-sector transfer capability without local processor intervention.
• Quiet operation.
• SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.
• Support for S.M.A.R.T. drive monitoring and reporting.
• Supports latching SATA cables and connectors.
DiamondMax 21 Serial ATA Product Manual, Rev. C 1
1.1 About the Serial ATA interface
The Serial ATA interface provides several advantages over the traditional (parallel) ATA interface. The primary
advantages include:
• Easy installation and configuration with true plug-and-play connectivity. It is not necessary to set any jumpers or other configuration options.
• Thinner and more flexible cabling for improved enclosure airflow and ease of installation.
• Scalability to higher performance levels.
In addition, Serial ATA makes the transition from parallel ATA easy by providing legacy software support. Serial
ATA was designed to allow you to install a Serial ATA host adapter and Serial ATA disc drive in your current
system and expect all of your existing applications to work as normal.
The Serial ATA interface connects each disc drive in a point-to-point configuration with the Serial ATA host
adapter. There is no master/slave relationship with Serial ATA devices like there is with parallel ATA. If two
drives are attached on one Serial ATA host adapter, the host operating system views the two devices as if they
were both “masters” on two separate ports. This essentially means both drives behave as if they are Device 0
(master) devices.
Note. The host adapter may, optionally, emulate a master/slave environment to host software where two
devices on separate Serial ATA ports are represented to host software as a Device 0 (master) and
Device 1 (slave) accessed at the same set of host bus addresses. A host adapter that emulates a
master/slave environment manages two sets of shadow registers. This is not a typical Serial ATA
environment.
The Serial ATA host adapter and drive share the function of emulating parallel ATA device behavior to provide
backward compatibility with existing host systems and software. The Command and Control Block registers,
PIO and DMA data transfers, resets, and interrupts are all emulated.
The Serial ATA host adapter contains a set of registers that shadow the contents of the traditional device registers, referred to as the Shadow Register Block. All Serial ATA devices behave like Device 0 devices. For additional information about how Serial ATA emulates parallel ATA, refer to the “Serial ATA: High Speed Serialized
AT Attachment” specification. The specification can be downloaded from www.serialata.org.
2 DiamondMax 21 Serial ATA Product Manual, Rev. C
2.0 Drive specifications
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal
power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate the
following drive models:
STM3500630AS STM3250824AS STM3160815AS STM380815AS
STM3320620AS STM3250820AS STM3160215AS STM380215AS
STM3320820AS STM3250310AS STM340215AS
2.1 Specification summary tables
The specifications listed in the following tables are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual.
DiamondMax 21 Serial ATA Product Manual, Rev. C 3
Table 1: Drive specifications summary for 500 Gbyte models
Drive specification STM3500630AS
Formatted capacity (512 bytes/sector)* 500 Gbytes
Guaranteed sectors 976,773,168
Heads 6
Discs 3
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density 813 kbits/in max
Track density 145 ktracks/in avg
Areal density 114.4 Gbits/in2 avg
Spindle speed 7,200 RPM
Internal data transfer rate 1,030 Mbits/sec max
Sustained data transfer rate OD 72 Mbytes/sec max
I/O data-transfer rate 300 Mbytes/sec max
ATA data-transfer modes supported PIO modes 0–4
Cache buffer 16 Mbytes
Height (max) 26.1 mm (1.028 inches)
Width (max) 101.6 mm (4.000 inches) +/- 0.010 inches
Length (max) 146.99 mm (5.787 inches)
Weight (typical) 635 grams (1.40 lbs)
Average latency 4.16 msec
Power-on to ready 15 sec max
Standby to ready 15 sec max
Track-to-track seek time <0.8 msec typical read; <1.0 typical write
Average seek, read <8.5 msec typical
Average seek, write <10.0 msec typical
Startup current (typical) 12V (peak) 2.8 amps
Voltage tolerance (including noise) 5V ± 5%
Ambient temperature 0° to 60°C (operating)
Temperature gradient 20°C per hour max (operating)
Relative humidity 5% to 90% (operating)
Relative humidity gradient 30% per hour max
Wet bulb temperature 37.7°C max (operating)
Altitude, operating –60.96 m to 3,048 m
Altitude, nonoperating
(below mean sea level, max)
Operational Shock 68 Gs max at 2 msec
Non-Operational Shock 300 Gs max at 2 msec
Multiword DMA modes 0–2
Ultra DMA modes 0–6
12V ± 10%
–40° to 70°C (nonoperating)
30°C per hour max (nonoperating)
5% to 95% (nonoperating)
37.7°C max (nonoperating)
(–200 ft. to 10,000+ ft.)
–60.96 m to 12,192 m
(–200 ft. to 40,000+ ft.)
4 DiamondMax 21 Serial ATA Product Manual, Rev. C
Drive specification STM3500630AS
Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement
Vibration, nonoperating 5–22 Hz: 0.25 Gs, Limited displacement
Drive acoustics, sound power
Idle** 2.8 bels (typical)
Performance seek 3.7 bels (typical)
Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) 0.34%
Warranty 3 years on distribution units.
Contact start-stop cycles 50,000 at 25°C, 50% rel. humidity
Supports Hotplug operation per the Serial ATA Revision 2.5 specification Yes
22–350 Hz: 0.50 Gs
350–500 Hz:: 0.25 Gs
22–350 Hz: 5.0 Gs
350–500 Hz:: 1.0 Gs
3.0 bels (max)
3.9 bels (max)
14
bits read
DiamondMax 21 Serial ATA Product Manual, Rev. C 5
Table 2: Drive specifications summary for 320 Gbyte models
Drive specification STM3320820AS STM3320620AS
Formatted capacity (512 bytes/sector)* 320 Gbytes
Guaranteed sectors 625,142,448
Heads 4
Discs 2
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density 781 kbits/in max
Track density 145 ktracks/in avg
Areal density 114.4 Gbits/in2 avg
Spindle speed 7,200 RPM
Internal data transfer rate 1,030 Mbits/sec max
Sustained data transfer rate OD 72 Mbytes/sec max
I/O data-transfer rate 300 Mbytes/sec max
ATA data-transfer modes supported PIO modes 0–4
Cache buffer 16 Mbytes 8 Mbytes
Height (max) 26.1 mm (1.028 inches)
Width (max) 101.6 mm (4.000 inches) +/- 0.010 inches
Length (max) 146.99 mm (5.787 inches)
Weight (typical) 635 grams (1.4 lbs)
Average latency 4.16 msec
Power-on to ready 15 sec max
Standby to ready 15 sec max
Track-to-track seek time <0.8 msec typical read; <1.0 typical write
Average seek, read <8.5 msec typical
Average seek, write <10.0 msec typical
Startup current (typical) 12V (peak) 2.8 amps
Voltage tolerance (including noise) 5V ± 5%
Ambient temperature 0° to 60°C (operating)
Temperature gradient 20°C per hour max (operating)
Relative humidity 5% to 90% (operating)
Relative humidity gradient 30% per hour max
Wet bulb temperature 37.7°C max (operating)
Altitude, operating –60.96 m to 3,048 m
Altitude, nonoperating
(below mean sea level, max)
Operational Shock 68 Gs max at 2 msec
Non-Operational Shock 350 Gs max at 2 msec
Multiword DMA modes 0–2
Ultra DMA modes 0–6
12V ± 10%
–40° to 70°C (nonoperating)
30°C per hour max (nonoperating)
5% to 95% (nonoperating)
37.7°C max (nonoperating)
(–200 ft. to 10,000+ ft.)
–60.96 m to 12,192 m
(–200 ft. to 40,000+ ft.)
6 DiamondMax 21 Serial ATA Product Manual, Rev. C
Drive specification STM3320820AS STM3320620AS
Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement
Vibration, nonoperating 5–22 Hz: 0.25 Gs, Limited displacement
Drive acoustics, sound power
Idle** 2.5 bels (typical)
Performance seek 3.0 bels (typical)
Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) 0.34%
Warranty 3 years on distribution units.
Contact start-stop cycles 50,000 at 25°C, 50% rel. humidity
Supports Hotplug operation per the Serial ATA Revision 2.5 specification Yes
*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.
22–350 Hz: 0.50 Gs
350–500 Hz:: 0.25 Gs
22–350 Hz: 5.0 Gs
350–500 Hz:: 1.0 Gs
2.9 bels (max)
3.2 bels (max)
14
bits read
DiamondMax 21 Serial ATA Product Manual, Rev. C 7
Table 3: Drive specifications summary for 250 Gbyte models
Drive specification STM3250824AS STM3250820AS STM3250310AS
Formatted capacity (512 bytes/sector)* 250 Gbytes
Guaranteed sectors 488,397,168
Heads 3 2
Discs 2 1
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density 790.1 813 kbits/in max 1,110 kbits/in max
Track density 124.5 ktracks/in avg 145 ktracks/in avg 160 ktracks/in avg
Areal density 97.96 Gbits/in2 avg 114.4 Gbits/in2 avg 176 Gbits/in2 avg
Spindle speed 7,200 RPM
Internal data transfer rate 867.2 Mbits/sec max 1,030 Mbits/sec max 1,303 Mbits/sec max
Sustained data transfer rate OD 76.6 Mbytes/sec max 72 Mbytes/sec max 110 Mbytes/sec max
I/O data-transfer rate 300 Mbytes/sec max
ATA data-transfer modes supported PIO modes 0–4
Cache buffer 8 Mbytes
Height (max) 26.1 mm (1.028 inches) 19.99 mm (.787 inches)
Width (max) 101.6 mm (4.000 inches) +/- 0.010 inches
Length (max) 146.99 mm (5.787 inches)
Weight (typical) 580 grams (1.28 lb.) 600 grams (1.32 lb.) 368 grams (.811 lbs)
Average latency 4.16 msec
Power-on to ready 11 se c max
Standby to ready 11 s ec max 15 sec max
Track-to-track seek time <0.8 msec typical read,
Average seek, read <8.0 msec typical <8.5 msec typical <11.0 msec typical
Average seek, write <9.0 msec typical <10.0 msec typical <12.0 msec typical
Startup current (typical) 12V (peak) 2.8 amps 2.0 amps
Voltage tolerance (including noise) 5V ± 5%
Ambient temperature 0° to 60°C per hour max (operating)
Temperature gradient 20°C (operating)
Relative humidity 5% to 90% (operating)
Relative humidity gradient 30% per hour max
Wet bulb temperature 37.7°C max
Altitude, operating –60.96 m to 3,048 m
Altitude, nonoperating
(below mean sea level, max)
Operational Shock 63 Gs max at 2 msec 68 Gs max at 2 msec 63 Gs max at 2 msec
Multiword DMA modes 0–2
Ultra DMA modes 0–6
<1.0 msec typical write
12V ± 10%
–40° to 70°C per hour max (nonoperating)
30°C (nonoperating)
5% to 95% (nonoperating)
(operating)
40.0°C max
(nonoperating)
(–200 ft. to 10,000+ ft.)
–60.96 m to 12,192 m
(–200 ft. to 40,000+ ft.)
37.7°C max (operating)
37.7°C max (nonoperating)
<1.0 msec typical read,
<1.2 msec typical write
8 DiamondMax 21 Serial ATA Product Manual, Rev. C
Drive specification STM3250824AS STM3250820AS STM3250310AS
Non-Operational Shock 350 Gs max at 2 msec
Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement
Vibration, nonoperating 5–22 Hz: 0.25 Gs, Limited displacement
Drive acoustics, sound power
Idle** 2.7 bels (typical)
Performance seek 3.4 bels (typical)
Quiet seek 2.7 bels (typical)
Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) 0.34%
Warranty 3 years on distribution units.
Contact start-stop cycles 50,000 at 25°C, 50% rel. humidity
Supports Hotplug operation per the
Serial ATA Revision 2.5 specification
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment
and formatting.
**During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and
power to operational levels.
22–350 Hz: 0.50 Gs
350–500 Hz:: 0.25 Gs
22–350 Hz: 5.0 Gs
350–500 Hz:: 1.0 Gs
2.9 bels (max)
3.6 bels (max)
14
bits read
Yes
2.5 bels (typical)
2.9 bels (max)
3.0 bels (typical)
3.2 bels (max)
2.6 bels (typical)
2.7 bels (max)
2.8 bels (max)
DiamondMax 21 Serial ATA Product Manual, Rev. C 9
Table 4: Drive specifications summary for the 160 Gbyte models
Drive specification STM3160815AS STM3160215AS
Formatted capacity (512 bytes/sector)* 160 Gbytes
Guaranteed sectors 312,581,808
Heads 2
Discs 1
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density 824 kbits/in max
Track density 137.259 ktracks/in avg
Areal density 101 Gbits/in2 avg
Spindle speed 7,200 RPM
Internal data transfer rate 930 Mbits/sec max
Sustained data transfer rate OD 78 Mbytes/sec max
I/O data-transfer rate 300 Mbytes/sec max
ATA data-transfer modes supported PIO modes 0–4
Cache buffer 8 Mbytes 2 Mbytes
Height (max) 19.99 mm (0.787 inches)
Width (max) 101.6 mm (4.000 inches) +/- 0.010 inches
Length (max) 146.99 mm (5.787 inches)
Weight (typical) 380 grams (0.838 lb.)
Average latency 4.16 msec
Power-on to ready 7.9 sec max
Standby to ready 7.9 sec max
Track-to-track seek time <1.0 msec typical read; <1.2 msec typical write
Average seek, read <11 msec typical
Average seek, write <12 msec typical
Startup current (typical) 12V (peak) 2.8 amps
Voltage tolerance (including noise) 5V ± 5%
Ambient temperature 0° to 60°C (operating)
Temperature gradient 20°C per hour max (operating)
Relative humidity 5% to 90% (operating)
Relative humidity gradient 30% per hour max
Wet bulb temperature 37.7°C max (operating)
Altitude, operating –60.96 m to 3,048 m
Altitude, nonoperating
(below mean sea level, max)
Operational Shock 63 Gs max at 2 msec
Non-Operational Shock 350 Gs max at 2 msec
Multiword DMA modes 0–2
Ultra DMA modes 0–6
12V ± 10%
–40° to 75°C (nonoperating)
30°C per hour max (nonoperating)
5% to 95% (nonoperating)
40°C max (nonoperating)
(–200 ft. to 10,000+ ft.)
–60.96 m to 12,192 m
(–200 ft. to 40,000+ ft.)
10 DiamondMax 21 Serial ATA Product Manual, Rev. C
Drive specification STM3160815AS STM3160215AS
Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement
Vibration, nonoperating 5–22 Hz: 0.25 Gs, Limited displacement
Drive acoustics, sound power
Idle** 2.8 bels (typical)
Quiet seek 3.0 bels (typical)
Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) 0.34%
Warranty 3 years on distribution units.
Contact start-stop cycles 50,000 at 25°C, 50% rel. humidity
Supports Hotplug operation per the Serial ATA Revision 2.5 specification Yes
*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.
22–350 Hz: 0.5 Gs
350–500 Hz:: 0.25 Gs
22–350 Hz: 5.0 Gs
350–500 Hz:: 1.0 Gs
3.0 bels (max)
3.2 bels (max)
14
bits read
DiamondMax 21 Serial ATA Product Manual, Rev. C 11
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