Product Manual
LD25 Series SATA
ST9402115AS
ST920217AS
100371155
Rev . C
August 2007
©2007, Seagate Technology LLC All rights reserved.
Publication number: 100371155, 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. LD25 Series, SeaTools and SeaTDD 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. 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. Seagate reserves the right to change, without notice,
product offerings or specifications.
LD25 Series SATA Product Manual, Rev. C
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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
2.3 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 Time to ready. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.9 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.9.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.9.2 Deferred spinup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.9.3 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.9.4 Voltage tolerance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.9.5 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
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
2.15.1 European Union Restriction of Hazardous Substances (RoHS) . . . . . . . . . . . . 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
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List of Figures
Figure 1. Typical +5V only startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 2. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 3. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 4. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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1.0 Introduction
This manual describes the functional, mechanical and interface specifications for the following Seagate
LD25 Series SATA model drives:
• ST9402115AS
• ST920217AS
Seagate LD25 Series drives comprise a new product category of 2.5-inch form factor drives designed for non-
notebook PC applications such as:
• Consumer electronics (gaming, small PVRs/DVRs)
• Ultra-small desktop PCs
• Internet appliances
LD25 Series drives are quieter, lighter and use less power than 3.5-inch drives. They are ideal for applications
requiring the form and fit of a notebook drive but without some of the design specifications required by notebook drives such as high shock tolerance, high performance, and power management. LD25 Series drives are
not presently suited for notebook applications or environments with high operating temperatures.
These drives provide the following key features:
• 5,400 RPM spindle speed
• 2 Mbyte buffer
• High instantaneous (burst) data-transfer rates (up to 150 Mbytes per second).
• Tunneling Magnetoresistive (TMR) recording heads.
• State-of-the-art cache and on-the-fly error-correction algorithms.
• Full-track multiple-sector transfer capability without local processor intervention.
• Quiet operation.
• 500 Gs nonoperating shock.
• SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.
• The 3D Defense System™, w hich in clu des Drive Defense , D at a Defen se and D iagnost ic Defense, offers the
industry’s most comprehensive protection for disc drives.
• Support for S.M.A.R.T. drive monitoring and reporting.
• Support for Read Multiple and Write Multiple commands.
®
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1.1 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 sof tw ar e suppo rt. 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 cont ai ns a set of registe rs that sha dow the conte nts of the traditional device r egisters, 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.com.
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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
ST9402115AS and ST920217AS 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.
T a ble 1: Drive speci ficat ion s
Drive specification ST9402115AS ST920217AS
Formatted Gbytes (512 bytes/sector)* 40 20
Guaranteed sectors 82,443,600 41,021,800
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Physical read/write heads 2 1
Discs 1 1
Recording density in BPI (bits/in ch max) 675,900
Track density TPI (tracks/inch max) 114,000
Areal density (Gbits/inch2 max) 81
Spindle speed (RPM) 5,400
Internal transfer rate (Mbytes/sec max) 57.6
I/O data transfer rate (Mbytes/sec max) 150
ATA data-transfer modes supported SATA 1.0, SATA II
Cache buffer (Mbytes) 2
Height (max) 9.5 +/- 0.2 mm (0.374 +/- .0078 inches)
Width (max) 69.85 mm (2.75 +/- 0.0098 inches)
Length (max) 100.5078 +/- 1.57 mm (3.957 +/- 0.062 inches)
Weight (typical) 100 grams (0.22 lb)
Average latency (msec) 5.6
Power-on to ready (sec typical) 4.0
Standby to ready (sec typical) 3.0
Track-to-track seek time (msec typical) 1.0 (read), 1.5 (write)
Average seek, read (msec typical) <16
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
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T a ble 1: Drive speci ficat ion s
Drive specification ST9402115AS ST920217AS
Average seek, write (msec typical) <16
Full-stroke seek (msec) 22 (typical); 24 (max)
Startup current 5V, (amps typical) (max = +/- 10%) 1.0
Seek power, random r/w, desktop usage (watts, typical) 2.9
Idle mode (watts, typical) 2.5
Standby and sleep modes (watts, typical) <1.15
Voltage tolerance (including noise) +5.0V ± 5%
Ambient temperature 5° to 55°C (operating), –40° to 70°C (nonoperating)
Temperature gradient
(°C per hour max, noncondensing)
Relative humidity
(noncondensing)
Relative humidity gradient 30% per hour max
Wet bulb temperature (°C max) 30 (operating)
Altitude, operating –304.8 m to 3,048 m (–1000 ft to 10,000+ ft)
Altitude, nonoperating (below mean sea level, max) –304.8 m to 12,192 m (–1000 ft to 40,000+ ft)
Shock, operating (Gs max at 2 msec) 100
Shock, nonoperating (Gs max at 2 msec) 500
Shock, nonoperating (Gs max at 1 msec) 350
Shock, nonoperating (Gs max at 0.5 msec) 200
Vibration, operating 0.5 G (22–350 Hz)
Vibration, nonoperating 5 Gs (0 to peak, 22–350 Hz)
Drive acoustics, sound power (bels)
Idle** 2.4 (typical)
Seek 2.7 (typical)
Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) <1.0%, Desktop and gaming use
Service life 5 Y ears
Warranty To determine the warranty for a specific drive, use a web browser to access
Load/Unload (U/UL) cycles
Controlled L/UL cycles
(40°C, 50% relative humidity)
Emergency L/UL cycles
(40°C, 50% relative humidity)
Supports Hotplug operation per SATA II specification Yes
20°C (operating)
30°C (nonoperating)
8% to 90% (operating)
5% to 95% (nonoperating)
40 (nonoperating)
0.25 G (351–500 Hz)
1.0 G (351–500 Hz)
14
bits read
the following web page:
www.seagate.com/support/service/
From this page, click on the “Verify Y our 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.
50,000
20,000
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment
and formatting.
**During period s of driv e idle, some offline activ ity may oc cu r acc or ding to th e S. M.A .R.T. s pe cif icati on, whi ch ma y in crease acoustic and
power to operational levels.
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2.2 Formatted ca pacity
Model Formatted capacity* Guaranteed sectors Bytes per sector
ST9402115AS 40 Gbytes 82,443,600 512
ST920217AS 20 Gbytes 41,021,800 512
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting.
2.3 Default logi cal geometr y
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
ST9402115AS 2 1
ST920217AS 1 1
2.5 Recording and inter f ac e technolo gy
Interface Serial ATA (SATA)
Recording density BPI (bits/inch max) 675,900
Track density TPI (tracks/inch max) 114,000
Areal density (Gbits/inch2 max) 81
Spindle speed (RPM) (± 0.2%) 5,400
Maximu m Internal tr a n sfer rate (Mbytes/se c) 57.6
I/O data-transfer rate (Mbytes/sec max) 150 (SATA 1.0)
Interleave 1:1
Cache buffer 2 Mbytes (2,048 kbytes)
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2.6 Physical characteristics
Height (mm)
(inches)
Width (mm)
(inches)
Length (mm)
(inches)
Typical weight (grams)
(pounds)
9.5 +/-0.2
0.374 +/-0.0078
69.85 +/-0.25
2.75 +/-0.0098
100.5078 +/-1.57
3.957 +/-0.062
100
0.22
2.7 Seek time
Seek measurem ent s a re t ake n wi th nom inal po w er a t 25 °C amb ient temperature. All tim es a re m easu red using
drive diagnostics. The specifications in the table below are defined as follows:
• Track-to-track seek time is an average of all possible single-track seeks in both directions.
• Average seek time is a true statistical random average of at least 5,000 measurements of seeks between
random tracks, less overhead.
Table 2: Typical seek times
T yp ical seek times (msec) Read Write
Track-to-track <2 <2
Average <16 <16
Full-stroke <24 <24
Average latency 5.6 5.6
Note. These drives are designed to consisten tly me et t he se ek t imes r epr esente d in thi s manu al. P hysical
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 Time to ready
Time to ready Typical
Power-on to Ready (sec) 4.0 8.0
St andby to Ready (sec) 3.0 8.0
Max @ 25°C
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2.9 Power specifications
The drive receives DC power (+5V) through a native SATA power connector.
2.9.1 Power consumption
Power requiremen ts for the dr i ves are lis ted in the ta bl e on p age 7 . Typical power measurements are based on
an average of drives tested, under nominal conditions, at 25°C ambient temperature.
• Spinup power
Spinup power is measured from the time of power-on to the time that the drive spindle re aches operating speed.
• Seek mode
During seek mod e, the read /write actuator arm move s toward a spe cific positi on on the d isc surface and does
not execute a read or write operati on. Servo ele ctronics ar e acti ve. Seek mode power is mea sure d based on
three random seek operations every 100 msecs. This mode is not typical.
• Read/write power and current
Read/write power is measured with the heads on track, based on three 63 sector read or write operations
every 100 msecs.
• Operating powe r and current
Operating power is measured using 40 percent random seeks, 40 percent read/write mode (1 write for each
10 reads) and 20 percent drive idle mode.
• Idle mode power*
Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in
a random track location.
• Standby mode
During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/
write electronics are in power-down model
T a ble 3: DC power
Power di s s ipation +5V input average (25° C)
Spinup current 1.0 Amp
Seek, random r/w, desktop usage 2. 9 Watts
Idle* 2.5 Watts
Standby and sleep modes <1.15 Watts
*During periods of drive i dle, some offl ine activity may occur acc ording to the S. M.A.R.T. speci fica tion, which may i ncrease acoust ic and
power to operational levels.
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2.9.1.1 Typical current profile
Figure 1. Typical +5V only startup and operation current profile
2.9.2 Deferred spinup
LD25 Series SATA drives provide a deferred spinup feature which storage subsystem controllers can use to
sequence disc drive initialization. This is beneficial to systems which include multiple Serial ATA hard disc
drives because it allows subsystem controllers to stagger the spinup of each drive to accommodate available
power supply current. This feature does not impact time-to-ready in typical desktop systems.
To accommo date th e defer red spinup of mu lt iple disc dri ves in an enclosur e, LD 25 Serie s SATA disc drives will
spin up only after power is applied to the drive and after successful PHY (Physical layer) initialization. PHY initialization occurs after the PHY enters the DP7:DR_Ready state. This state is reached after a successful
exchange of Out-Of-Band (OOB) signals with a functional ho st-side Serial ATA port. In desktop systems, SATA
transceivers should initialize OOB as soon as power comes ready to guarantee the drive spins up quickly.
Seagate disc drives will not spin up without an operational host-side Serial ATA transceiver.
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Additional details
Upon system power up, PHY communication is initiated with a COMRESET signal, which is generated by the
host-side transceiver. COMRESET is followed by a COMINIT signal generated by the disc drive transceiver.
COMRESET and COMINIT are followed by an exchange of COMWAKE signals and Align primitives. The disc
drive will spin up after the successful exchange of Align primitives cause the PHY to come ready.
For more details, refer to:
• Section 6.8 of the Serial ATA 1.0 High-Speed Serialized AT Attachment specification
• Section 6.2 of the Serial ATA II: Extensions to Serial ATA 1.0 specification
• SATA 1.0 design guides
Note. These specifications and guides are available on the Serial ATA web site (www.serialata.org).
2.9.3 Conducted noise
Input noise ripple is measured at the host system power 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. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write
current.
2.9.4 Voltage tolerance
Voltage tolerance (including noise):
5V ± 5%
2.9.5 Power-manageme nt modes
The drive provides programmable power management to provide greater energy efficiency. In most systems,
you can control power management through the system setup program. The drive features the following
power-management modes:
Table 4: Power management modes
Power modes Heads Spindle Buffer
Active (operating) Tracking Rotating Enabled
Idle, performance Tracking Rotating Enabled
Idle, active Floating Rotating Disabled
Idle, low power Parked Rotating Disabled
Standby Parked Stopped Disabled
Sleep Parked Stopped Disabled
• Active mode
The drive is in Active mode during the read/write and seek operations.
• Idle mode
The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disc
access is necessary.
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• Standby mode
The drive enters Standby mode when the host sends a Standby Immediat e c omma nd. If the ho st has set the
standby timer, the drive can also enter Standby mode automatically after the drive has been inactive for a
specifiable length of time. The standby tim er delay is established using a Standby or Idle command. In Sta ndby
mode, the drive buffer is enabled, the heads are parked and the spindle is at rest. The drive accepts all
commands and returns to Active mode any time disc access is necessary.
• Sleep mode
The drive enter s S leep m ode after rece iv ing a Slee p com man d fro m th e ho st. In Sl eep mod e, th e dr ive buffer
is disabled, the heads are parked and the spindle is at rest. The drive leaves Sleep mode after it receives a
Hard Reset or So ft Reset from the host. After re ceiving a reset , the drive exi ts Sleep mode and en ters Standby
mode with all current translation parameters intact.
• Idle and Standby timers
Each time the drive performs an Active function (read, write or seek), the standby timer is reinitialized and
begins counting down from its specified delay times to zero. If the standby timer reaches zero before any
drive activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the
drive accepts all commands and returns to Active mode when disc access is necessary.
LD25 Series SATA Product Manual, Rev. C
11
2.10 E nvironmental spec if ications
2.10.1 Ambient temperature
Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.
Actual drive case temperature should not exceed 65°C (149°F) within the operating ambient conditions.
Above 1,000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet.
Operating: 5° to 55°C (41° to 131°F)
Nonoperating: –40° to 70°C (–40° to 158°F)
2.10.2 Temperatu re gradient
Operating 20°C per hour (68°F per hour max), without condensation
Nonoperating 30°C per hour (86°F per hour max)
2.10.3 Humidity
2.10.3.1 Relative humidity
Operating 8% to 90% noncondensing (30% per hour max)
Nonoperating 5% to 95% noncondensing (30% per hour max)
2.10.3.2 Wet bulb temperature
Operating 30°C (86°F max)
Nonoperating 40°C (104°F max)
2.10.4 Altitude
Operating –304.8 m to 3,048 m (–1,000 ft to 10,000+ ft)
Nonoperating –304.8 m to 12,192 m (–1,000 ft to 40,000+ ft)
12
LD25 Series SATA Product Manual, Rev. C
2.10.5 Shock
All shock specifications assume that the drive is mounted securely with the input shock applied at the drive
mounting screws. Shock may be applied in the X, Y or Z axis.
2.10.5.1 Operating shock
These drives comply with the performance levels specified in this document when subjected to a maximum
operating shock of 100 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more
than two times per second.
2.10.5.2 Nonoperatin g sho ck
The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subse quently put into operation is 500 Gs based o n a nonr epetiti ve half-sine shock pul se
of 2 msec duration.
The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subsequently put into operation is 35 0 Gs based o n a nonr epetitive hal f-sine shock pulse
of 1 msec duration.
The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subsequently put into operation is 200 Gs based o n a nonr epetitive hal f-sine shock pulse
of 0.5 msec duration.
2.10.6 Vibration
All vibration specifications assume that the drive is mounted securely with the input vibration applied at the
drive mounting screws. Vibration may be applied in the X, Y or Z axis.
2.10.6.1 Operating vibration
The maximum vibration levels that the drive may experience while meeting the performance standards specified in this document are specified below.
22–350 Hz 0.5 Gs (0 to peak).
351-500 Hz 0.25 Gs
2.10.6.2 Nonoperatin g vibr ati on
The maximum nonoperating vibration levels that the drive may experience without incurring physical damage or degradation in performance when subsequently put into operation are specified below.
22–350 Hz: 5.0 Gs (0 to peak).
351-500 Hz 1.0 G
LD25 Series SATA Product Manual, Rev. C
13
2.11 Acoustics
Drive acoustics are measured as overall A-weighted acoustic sound power levels. All measurements are consistent with ISO document 7779. Sound power measurements are taken under essentially free-field conditions
over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.
Note. For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is
defined by the following equation:
(Number of seeks per second = 0.4 / (average latency + average access time))
Table 5: Drive level acoustics
Idle* Seek
2.4 bels (typ) 2.7 bels (typ)
*During periods of drive i dle, some offl ine activity may occur acc ording to the S. M.A.R.T. speci fica tion, which may i ncrease acoust ic and
power to operational levels.
2.12 Electromagnetic immunity
When properly installed in a representative host system, the drive operates without errors or degradation in
performance when subjected to the radio frequency (RF) environments defined in the following table:
T a bl e 6: Radio frequency enviro nm en t s
Test Description Performance level Reference standard
Electrostatic discharge Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV B EN 61000-4-2: 95
Radiated RF immunity 80 to 1,000 MHz, 3 V/m,
80% AM with 1 kHz sine
900 MHz, 3 V/m, 50% pulse modulation @
200 Hz
Electrical fast transient ± 1 kV on AC mains, ± 0.5 kV on external
I/O
Surge immunity ± 1 kV differential, ± 2 kV common, AC
mains
Conducted RF immunity 150 kHz to 80 MHz, 3 Vrms, 80% AM with
1 kHz sine
Voltage dips, interrupts 0% open, 5 seconds
0% short, 5 seconds
40%, 0.10 seconds
70%, 0.01 seconds
A - 1) No upset or degradation in performance beyond manufacturer’s specified limits.
2) No data loss.
B - 1) Unit self recovers without user intervention.
2) No data loss.
C - 1) Upset OK provided that unit will function after user intervention.
A EN 61000-4-3: 96
ENV 50204: 95
B EN 61000-4-4: 95
B EN 61000-4-5: 95
A EN 61000-4-6: 97
C
C
C
B
EN 61000-4-11: 94
14
LD25 Series SATA Product Manual, Rev. C
2.13 Reliability
Measurement type Specification
Nonrecoverable read errors 1 per 1014 bits read, max.
Annualized Failure Rate (AFR) <1.0% Desktop and Gaming use
Load/Unload (L/UL)
Controlled L/UL cycles
(40°C, 50% Relative Humidity)
50,000
Emergency L/UL cycles
(40°C, 50% Relative Humidity)
Service Life 5 Years
Warranty To determine the warranty for a specific drive, use a web browser to access the
20,000
following web page:
www.seagate.com/support/service/
From this page, click on the “Verify Your Warranty” link. You will be asked to pro-
vide the drive serial number, model number (or part number) and country of purchase. The system will display the warranty information for your drive.
2.14 Agency cert ificatio n
2.14.1 Safety certification
The drives are recognized in accordance with UL 1950 and CSA C22.2 (950) and meet all applicable sections
of IEC950 and EN 60950 as tested by TUV North America.
2.14.2 Electromagnetic compatibilit y
Hard drives that displ ay th e CE mark com pl y wit h the Euro pean Union (EU) requirements specified in the Elec tromagnetic Compatibility Directive (89/336/EEC). Testing is performed to the levels specified by the product
standards for Information Technology Equipment (ITE). Emission levels are defined by EN 55022, Class B and
the immunity levels are defined by EN 55024.
Seagate uses an inde pend ent laboratory to confirm compl ian ce with the EC directives specified i n t he pr evious
paragraph. Drives are teste d in representa tive end-user systems. Although CE-marked Seagate drives comply
with the directives when used in the test systems, we cannot guarantee that all systems will comply with the
directives. The drive is designed for operation inside a properly designed enclosure, with properly shielded I/O
cable (if necessary) and terminators on all unused I/O ports. Computer manufacturers and system integrators
should confirm EMC compliance and provide CE marking for their products.
LD25 Series SATA Product Manual, Rev. C
15
Korean RRL
If these drives have the Korea Ministry of Information and Communication (MIC) logo, they comply with paragraph 1 of Article 11 of the Electromagnetic Compatibility control Regulation and meet the Electromagnetic
Compatibility (EMC) Framework requirements of the Radio Research Laboratory (RRL) Ministry of Information
and Communication Republic of Korea.
These drives have been tested and com ply with the Electr omag netic Inter fere nce/E lectro magn etic Susce ptibility (EMI/EMS) for Class B products. Drives ar e tested in a representative, end-user system by a Korean-recognized lab.
• EUT name (model numbers): ST9402115AS, ST920217AS.
• Certificate numbers:
ST9402115AS E-D011-05-2395(B)
ST920217AS E-D011-05-2395(B)
• Trade name or applicant: Seagate Technology
• Manufacturing date: June 2005
• Manufacturer/nationality: Seagate Technology International
Australian C-Tick (N176)
If these models have the C-Tick marking, they comply with the Australia/New Zealand Standard AS/NZS3548
1995 and meet the Electromagnetic Compatibility (EMC) Framework requirements of the Australian Communication Authority (ACA).
2.14.3 FCC verification
These drives are intended to be cont ai ned solely w ithin a person al compute r or similar enclosu re (no t attached
as an external device ). As su ch, ea ch dr ive is co nsidere d to be a suba ssembly even when it is individually mar keted to the customer. As a subassembly, no Federal Communications Commission verification or certification
of the device is required.
Seagate Technology LLC has tested this device in enclosures as described above to ensure that the total
assembly (enclosure, disc drive, motherboard, power supply, etc.) does comply with the limits for a Class B
computing device, pursuant to Subpart J, Part 15 of the FCC rules. Operation with noncertified assemblies is
likely to result in interference to radio and television reception.
Radio and television interference. This equipment generates and uses radio frequency energy and if not
installed and used in strict accordance with the manufacturer’s instructions, may cause interference to radio
and television reception.
This equipment is designed to provide reasonable protection against such interference in a residential installation. However , there is no guarantee that interfer ence will not occur in a particular inst allation. If this equipm ent
does cause interference to radio or television, which can be determined by turning the equipment on and off,
you are encouraged to try one or more of the following corrective measures:
• Reorient the receiving antenna.
• Move the device to one side or the other of the radio or TV.
• Move the device farther away from the radio or TV.
• Plug the computer into a different outlet so that the receiver and computer are on different branch outlets.
If necessary, you should consult your dealer or an experienced radio/television technician for additional suggestions. You may find helpful the following booklet prepared by the Federal Communications Commission:
How to Identify and Resolve Radio-Television Interference Problems. This booklet is available from the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402. Refer to publication number 004-000-00345-4.
16
LD25 Series SATA Product Manual, Rev. C
2.15 Environmental protection
Seagate designs its products to meet environmental protection requirements worldwide, including regulations
restricting certain chemica l subst ances .
2.15.1 European Union Restriction of Hazardous Substances (RoHS)
A new law, the European Union Restriction of Hazardous Substances (RoHS) directive, will restrict the presence of chemical substances, including Lead (Pb), in electronic products effective July 2006.
A number of parts and materials in Seagate products are procured from external suppliers. We rely on the
rep-resentat ions o f our sup pl iers reg ardi ng the pr esence of RoHS subst ances in these p arts and mate rials. Our
supplier contracts require compliance with our chemical substance restrictions, and our suppliers document
their compliance wi th our re quire ment s by providing material conte nt declar ations for al l par ts an d mater ial s for
the disc drives documented in this publication. Current supplier declarations include disclosure of the inclusion
of any RoHS-regulated substance in such parts or materials.
Seagate also has internal system s in place to en sure ongoing complian ce with the RoHS Directive and all laws
and regulations which restrict chemical content in electronic products. These systems include standard
operat-ing procedures that ensure that restricted substances are not utilized in our manufacturing operations,
labora-tory analytical validation testing, and an internal auditing process to ensure that all standard operating
procedures are complied with.
2.16 Corrosive environment
Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to
light industrial environments containing sulfurous gases, chlorine and nitric oxide, classes G and H per ASTM
B845. However, this accelerated testing cannot duplicate every potential application environment.
Users should use caution exposing any electronic components to uncontrolled chemical pollutants and corrosive chemicals as electr onic dr i ve com ponen t reliab ilit y can be af fecte d by th e i nst allation environment. Th e si l-
ver, copper, nickel and gold films used in Seagate products are especially sensitive to the presence of sulfide,
chloride, and nitr ate c ont ami na nt s. S ulfur is found to be the m ost dam aging . In ad di tion, e lectron i c comp onent s
should never be exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or
exposed to an am bient rel at ive hum idity gr eate r th an 9 5%. Mat erial s used in cabin et fa bri cation , such as vulcanized rubber, that can outgas corrosive compounds should be minimized or eliminated. The useful life of any
electronic equipment may be extended by replacing materials near circuitry with sulfide-free alternatives.
LD25 Series SATA Product Manual, Rev. C
17
3.0 Configuring and mounting the drive
This section contains the specifications and instructions for configuring and mounting the drive.
3.1 Handling and static-discharg e precautio ns
After unpacking, and before installation, the drive may be exposed to potential handling and electrostatic discharge (ESD) hazards. Observe the following standard handling and static-discharge precautions:
Caution:
• Keep the drive in the electrostatic discharge (ESD) bag until you are ready for installation to limit the drive’s
exposure to ESD.
• Before handling the drive, put on a grounded wrist strap, or ground yourself frequently by touching the metal
chassis of a computer that is plugg ed into a grounded outlet. Wear a grounded wrist strap through out the entire
installation procedure.
• Handle the drive only by its edges or frame.
• The drive is fragile—handle it with care. Do not press down on the drive top cover.
• Always rest the drive on a padded, antistatic surface until you mount it in the computer.
• Do not touch the connector pins or the printed circuit board.
• Do not remove the factory-installed labels from the drive or cover them with additional labels. Removal voids
the warranty. Some factory-installed labels contain information needed to service the drive. Other labels are
used to seal out dirt and contamination.
18
LD25 Series SATA Product Manual, Rev. C
3.2 Configuring the drive
(
SATA interface connector
S
r
r
Each drive on the Serial ATA interface connects in a point-to-point configuration with the Serial ATA host
adapter. There is no master/slave relationship because each drive is considered a master in a point-to-point
relationships. 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 sep a rate ports. This means both drives b ehave as if they are
Device 0 (master) devices.
Serial ATA drives ar e des ig ned f or e asy inst al lation wi th no jump ers, t erm in ator s, or other settin gs. It is not n ecessary to set any jumpers on this drive for proper operation. The jumper block adjacent to the signal connector
is for factory use only.
Jumper block
SATA power connector
factory use only)
Figure 2. Serial ATA connectors
3.3 Serial ATA cables and connectors
The Serial ATA interface cable consists of four conductors in two differential pairs, plus three ground connections. The cable size may be 30 to 26 AWG with a maximum length of one meter (39.37 inches). See Table 7
for connector pin definitions. Either end of the SATA signal cable can be attached to the drive or host.
For direct backplane connection, the drive connectors are inserted directly into the host receptacle. The drive
and the host receptacle incorporate features that enable the direct connection to be hot pluggable and blind
mateable.
For installations which require cables, you can connect the drive as illustrated in Figure 3.
SATA interface connecto
Power connecto
ATA interface cable
Power cable
Figure 3. At tac hing SATA cabling
Each cable is keyed to ensure correct orientation.
LD25 Series SATA Product Manual, Rev. C
19
3.4 Drive mounting
You can mount the drive using four screws in the side-mounting holes or four screws in the bottom-mounting
holes. See Figure 4 for drive mounting di m ensions. Follow these i mpo rt ant mo unting pr ecauti o ns when mou nting the drive:
• Allow a minimum clearance of 0.030 inches (0.76 mm) around the entire perimeter of the drive for cooling.
• Use only M3 UNC mounting screws.
• Do not overtighten the mounting screws (maximum torque: 4.0 inch-lb).
• Four (4) threads (0.080 inches) minimum screw engagement recommended.
Measurements shown below are in inches.
1 DIMENSIONS PER EIA-720 OR SFF 8201 SPECIFICATION.
2 DIMENSIONS PER SFF 8212 OR SFF 8223.
3 DRIVE LENGTH W/ PATA IS 3.945±.057 (WORST CASE).
DRIVE LENGTH W/ SATA IS 3.957±.062 (WORST CASE).
3.945 ± .010
C
OF CONN.
OF DRIVE
C
DATUM B
( .189 )
2
(BASE)
2
.157
2
.399
1
2.750 ±.010
(BASE)
(.490 )
.217 ±.050
.217 ±.050
(.673 )
.020
)
(
SECTION B-B (SATA)
.039 B C D
2 .152
DETAIL A (PATA)
B
.039 B C D
.016 C
2 .012
DETAIL A (SATA)
SATA
.399
2
.370
PATA
.374 ±.008
-D-
2X .118
BOTH SIDES
1
BASE
BASE
.551
.551 1
1
3.567
1
3.567
(BASE) 1
3
2X M3 X 0.5-6H
MOUNTING HOLES; BOTH SIDES
.12 MIN FULL THREAD
0.148 ±.010 X 90
1
4X M3 X 0.5-6H
MOUNTING HOLES; BOTH SIDES
.10 MIN FULL THREAD
0.148 ±.010 X 90
1
1
2.430
B
-B-
1
2
DETAIL A
.160
-C-
Figure 4. Mounting dime nsions—top, side and end v ie w
20
LD25 Series SATA Product Manual, Rev. C
LD25 Series SATA Product Manual, Rev. C
21
4.0 Seria l ATA (S ATA) inte rface
These drives use the industry-standard Serial ATA interface that supports FIS data transfers. It supports ATA
programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–6. The drive
also supports the use of the IORDY signal to provide reliable high-speed data transfers.
For detailed information about the Serial ATA interface, refer to the “Serial ATA: High Speed Serialized AT
Attachment” specification.
Note. ST9402115AS and ST920217AS drives do not support Native Command Queueing (NCQ).
4.1 Hot-Plug compatibility
LD25 Series SATA drives incorp orate connecto rs which enabl e you to hot plug these drives i n accord ance with
the Serial ATA: High Speed Serialized AT Attachment specification revision 2.0. This specification can be
downloaded from http://www.serialata.com.
4.2 Serial ATA device plug connector pin definitions
Table 7 summarizes the signals on the Serial ATA interface and power connectors..
Table 7: Serial ATA connector pin definitions
Segment Pin Function Definition
Signal
S1 Ground 2nd mate
S2 A+ Differential signal pair A from Phy
S3 AS4 Ground 2nd mate
S5 B- Differential signal pair B from Phy
S6 B+
S7 Ground 2nd mate
Key and spacing separate signal and power segments
22
LD25 Series SATA Product Manual, Rev. C
Table 7: Serial ATA connector pin definitions
Segment Pin Function Definition
Power
P1 V
P2 V
P3 V
33
33
33
3.3V power
3.3V power
3.3V power, pre-charge, 2nd mate
P4 Ground 1st mate
P5 Ground 2nd mate
P6 Ground 2nd mate
P7 V
P8 V
P9 V
5
5
5
5V power, pre-charge, 2nd mate
5V power
5V power
P10 Ground 2nd mate
P11 Reserved The pin corresponding to P11 in the backplane receptacle connector is also reserved
The corresponding pin to be mated with P11 in the power cable receptacle connector
shall always be grounded
P12 Ground 1st mate.
P13 V
P14 V
P15 V
12
12
12
12V power, pre-charge, 2nd mate
12V power
12V power
Notes:
1. All pins are in a single row, with a 1.27 mm (0.050”) pitch.
2. The comments on the mating sequence apply to the case of backplane blindmate connector only. In this
case, the mating sequences are:
• the ground pins P4 and P12.
• the pre-charge power pints and the other ground pins.
• the signal pins and the rest of the power pins.
3. There are three power pins for each voltage. One pin from each voltage is used for pre-charge when
installed in a blind-mate backplane configuration.
4. All used voltage pins (Vx) must be terminated.
LD25 Series SATA Product Manual, Rev. C
23
4.3 Supported ATA commands
The following table lists Serial ATA standard commands that the drive supports. For a detailed description of
the ATA commands, refer to the Serial ATA: High Speed Serialized AT Attachment specification. See
“S.M.A.R.T. commands” on page 30.for details and subcommands used in the S.M.A.R.T. implementation.
Command nam e Comma nd c ode (in hex)
A TA-standard commands
Device Configuration Restore B1h/C0h
Device Configuration Freeze Lock B1h/C1h
Device Configuration Identify B1h/C2h
Device Configuration Set B1h/C3h
Download Microcode 92h
Execute Device Diagnostics 90h
Flush Cache E7h
Flush Cache Extended EAh
Identify Device ECh
Initialize Device Parameters 91h
Read Buffer E4h
Read DMA C8h
Read DMA Extended 25h
Read DMA without Retries C9h
Read Long with Retries 22h
Read Long without Retries 23h
Read Multiple C4h
Read Multiple Extended 29h
Read Native Max Address F8h
Read Native Max Address Extended 27h
Read Sectors 20h
Read Sectors Extended 24h
Read Sectors without Retries 21h
Read Verify Sectors 40h
Read Verify Sectors Extended 42h
Read Verify Sectors without Retries 41h
Seek 70h
Set Features EFh
Set Max Address F9h
24
LD25 Series SATA Product Manual, Rev. C
Command nam e Comma nd c ode (in hex)
Note: Individual Set Max commands are
identified by the value placed in the Set Max
Features register as defined to the right.
Address:
Password:
Lock:
Unlock:
Freeze Lock:
Set Multiple Mode C6h
S.M.A.R.T. Disable Operations B0h/D9h
S.M.A.R.T. Enable/Disable Autosave B0h/D2h
S.M.A.R.T. Enable Operations B0h/D8h
S.M.A.R.T. Enable/Disable Auto Offline B0h/DBh
S.M.A.R.T. Enable One Attribute Modifica-
B0h/E0h
tion
S.M.A.R.T. Execute Offline B0h/D4h
S.M.A.R.T. Read Attribute Thresholds B0h/D1h
S.M.A.R.T. Read Data B0h/D0h
S.M.A.R.T. Read Log Sector B0h/D5h
S.M.A.R.T. Return St atus B0h/DAh
S.M.A.R.T. Save Attribute Values B0h/D3h
S.M.A.R.T. Write Attribute Thresholds B0h/D7h
00
01
02
03
04
H
H
H
H
H
S.M.A.R.T. Write Attribute Values B0h/E1h
S.M.A.R.T. Write Log Sector B0h/D6h
Write Buffer E8h
Write DMA CAh
Write DMA Extended 35h
Write DMA without Retries CBh
Write Long with Retries 32h
Write Long without Retries 33h
Write Multiple C5h
Write Sectors 30h, 31h
Write Sectors Extended 34h
ATA-st a ndard powe r- m a nagement c om m a nds
Check Power Mode 98h or E5h
Idle 97h or E3h
Idle Immediate 95h or E1h
Sleep 99h or E6h
Standby 96h or E2h
St andby Immediate 94h or E0h
A TA-standard security commands
LD25 Series SATA Product Manual, Rev. C
25
Command nam e Comma nd c ode (in hex)
Security Set Password F1h
Securit y Un l o ck F2h
Security Erase Prepare F3h
Security Erase Unit F4h
Security Freeze Lock F5h
Security Disable Password F6h
26
LD25 Series SATA Product Manual, Rev. C
4.3.1 Identify Device command
The Identify Device command (command code ECH) transfers information about the drive to the host following
power up. The data is organized as a single 512-byte block of data, whose contents are shown in the table on
page 27. All reserved bits or words should be set to zero. Parameters listed with an “x” are drive-specific or
vary with the state of the drive. See Section 2.0 on page 3 for default parameter settings.
The following commands contain drive-specific features that may not be included in the Serial ATA specification.
Word Description Value
0
Configuration information:
• Bit 15: 0 = ATA; 1 = ATAPI
• Bit 7: removable media
0C5A
• Bit 6: removable controller
• Bit 0: reserved
1 Number of logical cylinders 16,383
2 ATA-reserved 0000
3 Number of logical heads 16
4 Retired 0000
5 Retired 0000
6 Number of logical sectors per logical track: 63 003F
7–9 Retired 0000
10–19 Serial number: (20 ASCII characters, 0000H = none) ASCII
20 Retired 0000
21 Retired 0400
22 Obsolete 0000
23–26 Firmware revision (8 ASCII character string, padded with
x.xx
blanks to end of string)
27–46 Drive model number: (40 ASCII characters, padded with
blanks to end of string)
ST9402115AS
ST920217AS
H
H
H
H
H
H
H
H
H
47 (Bits 7–0) Maximum sectors per interrupt on Read multiple
and Write multiple (16)
48 Reserved 0000
49 Standard S t andby timer, IORDY supported and may be dis-
abled
50 ATA-reserved 0000
51 PIO data-transfer cycle timing mode 0200
52 Retired 0200
53 Words 54–58, 64–70 and 88 are valid 0007
54 Number of current logical cylinders xxxx
55 Number of current logical heads xxxx
56 Number of current logical sectors per logical track xxxx
57–58 Current capacity in sectors xxxx
8010
2F00
H
H
H
H
H
H
H
H
H
H
H
LD25 Series SATA Product Manual, Rev. C
27
Word Description Value
59 Number of sectors transferred during a Read Multiple or
xxxx
Write Multiple command
60–61 Total number of user-addressable LBA sectors available
(see Section 2.2 for related information)
ST9402115AS = 82,443,600
ST920217AS = 41,021,800
62 Retired 0000
63 Multiword DMA active and modes supported (see note fol-
xx07
lowing this table)
64 Advanced PIO modes supported (modes 3 and 4 supported) 0003
65 Minimum multiword DMA transfer cycle time per word (120
0078
nsec)
66 Recommended multiword DMA transfer cycle time per word
0078
(120 nsec)
67 Minimum PIO cycle time without IORDY flow control (240
00F0
nsec)
68 Minimum PIO cycle time with IORDY flow control (120 nsec) 0078
69–74 ATA-reserved 0000
75 Queue depth 0000
76–79 ATA-reserved 0000
80 Major version number 003E
81 Minor version number 0000
82 Command sets supported 306B
83 Command sets supported 4001
84 Command sets support extension 4000
85 Command sets enabled 30xx
86 Command sets enabled 0001
87 Command sets enable extension 4000
88 Ultra DMA support and current mode (see note following this
xx3F
table)
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
89 Security erase time 0000
90 Enhanced security erase time 0000
92 Master password revision code FFFE
93 Hardware reset value
(see description following this table)
94 Auto acoustic management setting xxxx
95–99 ATA-reserved 0000
100–
103
Total number of user-addressable LBA sectors available
(see Section 2.2 for related information)
These words are required for drives that support the 48-bit
addressing feature. Maximum value: 0000FFFFFFFFFFFFh.
H
H
H
xxxx
H
H
H
ST9402115AS = 82,443,600
ST920217AS = 41,021,800
28
LD25 Series SATA Product Manual, Rev. C
Word Description Value
104–
127
128 Se cu r i ty status 0001
129–
159
160–
254
255 Integrity word xxA5
ATA-reserved 0000
Seagate-reserved xxxx
ATA-reserved 0000
H
H
H
H
H
Note. See the bit descriptions below for words 63, 88, 93 and 94 of the Identify Drive data:
Description (if bit is set to 1)
Bit Word 63
0 Multiword DMA mode 0 is supported.
1 Multiword DMA mode 1 is supported.
2 Multiword DMA mode 2 is supported.
8 Multiword DMA mode 0 is currently active.
9 Multiword DMA mode 1 is currently active.
10 Multiword DMA mode 2 is currently active.
Bit Word 88
0 Ultra DMA mode 0 is supported.
1 Ultra DMA mode 1 is supported.
2 Ultra DMA mode 2 is supported.
3 Ultra DMA mode 3 is supported.
4 Ultra DMA mode 4 is supported.
8 Ultra DMA mode 0 is currently active.
9 Ultra DMA mode 1 is currently active.
10 Ultra DMA mode 2 is currently active.
11 Ultra DMA mode 3 is currently active.
12 Ultra DMA mode 4 is currently active.
13 Ultra DMA mode 5 is currently active.
Bit Word 93
13 1 = 80-conductor cable detected, CBLID above VIH
0 = 40-conductor cable detected, CBLID below VIL
LD25 Series SATA Product Manual, Rev. C
29
4.3.2 Set Features command
This command con trols the implement ation of var ious features that the dr iv e sup port s. When the drive receives
this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an interrupt. If the value in the register does not represent a feature that the drive supports, the command is aborted.
Power-on default has the read look-ahead and write caching features enabled. The acceptable values for the
Features register are defined as follows:
T a ble 8: Set Feat ur es comman d value s
02
03
55
82
AA
F1
Enable write cache (default).
H
Set transfer mode (based on value in Sector Count register).
H
Sector Count register values:
00HSet PIO mode to default (PIO mode 2).
01HSet PIO mode to default and disable IORDY (PIO mode 2).
08HPIO mode 0
09HPIO mode 1
0AHPIO mode 2
0BHPIO mode 3
0CHPIO mode 4 (default)
20HMultiword DMA mode 0
21HMultiword DMA mode 1
22HMultiword DMA mode 2
40HUltra DMA mode 0
41HUltra DMA mode 1
42HUltra DMA mode 2
43HUltra DMA mode 3
44HUltra DMA mode 4
45HUltra DMA mode 5
Disable read look-ahead (read cache) feature.
H
Disable write cache
H
Enable read look-ahead (read cache) feature (default).
H
Report full capacity available
H
Note. At power-on, or after a hardware or software reset, the default values of the features are as indi-
cated above.
30
LD25 Series SATA Product Manual, Rev. C
4.3.3 S.M.A.R.T. commands
S.M.A.R.T. provides near-term failure prediction for disc drives. When S.M.A.R.T. is enabled, the drive monitors predetermined drive attributes that are susceptible to degradation over time. If self-monitoring determines
that a failure is likely, S.M.A.R.T. makes a status report available to the host. Not all failures are predictable.
S.M.A.R.T. predictability is limited to the attributes the drive can monitor. For more information on S.M.A.R.T.
commands and implementation, see the Draft ATA-5 Standard.
SeaTools diagnostic software activates a built-in drive self-test (DST S.M.A.R.T. command for D4H) that eliminates unnecessary drive returns. The diagnostic software ships with all new drives and is also available at:
http://seatools.seagate.com.
This drive is ship ped wi th S. M.A.R. T. features disabled. You must have a recent BIOS or software pa ckage that
supports S.M.A.R.T. to enable this feature. The table below shows the S.M.A.R.T. command codes that the
drive uses.
T a ble 9: S.M.A. R. T. commands
Code in features register S.M.A.R.T. command
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
DA
H
H
H
H
H
H
H
H
H
H
H
S.M.A.R.T. Read Data
Vendor-specific
S.M.A.R.T. Enable/Disable Attribute Autosave
S.M.A.R.T. Save Attribute Values
S.M.A.R.T. Execute Off-line Immediate (runs DST)
S.M.A.R.T. Read Log Sector
S.M.A.R.T. Write Log Sector
Vendor-specific
S.M.A.R.T. Enable Operations
S.M.A.R.T. Disable Operations
S.M.A.R.T. Return Status
Note. If an appropriate code is not written to the Features Register, the command is aborted and 0x 04
(abort) is written to the Error register.
LD25 Series SATA Product Manual, Rev. C
31
5.0 Seagate Technology support services
Internet
For information regarding Seagate products and services, visit www.seagate.com. Worldwide support is
available 24 hours daily by email for your questions.
Presales Support:
Presales@Seagate.com
T e chn i cal Supp or t:
DiscSupport@Seagate.com
Warranty Support:
http://www.seagate.com/support/service/index.html
mySeagate
my.seagate.com is the industry's first Web portal designed specifically for OEMs and distributors. It provides
self-service access to critical applications, personalized content and the tools that allow our partners to
manage their Seagate account functions. Submit pricing requests, orders and returns through a single,
password-protected Web interface-anytime, anywhere in the world.
spp.seagate.com
spp.seagate.com supports Seagate resellers with product information, program benefits and sales tools. You
may register for customiz e d communi cation s that ar e not ava ila ble on the web. The s e communi catio ns cont ai n
product launch, EOL, pricing, promotions and other channel-related information. To learn more about the
benefits or to register, go to spp.seagate.com, any time, from anywhere in the world.
Seagate Service Centers
Presales Support
Our Presales Support staff can help you determine which Seagate products are best suited for your specific
application or computer system, as well as product availability and compatibility.
Technical Support
Seagate technical support is available to assist you online at support.seagate.com or through one of our call
centers. Have your system configuration information and your “ST” model number available.
SeaTDD™ (+1-405-324-3655) is a telecommunications device for the deaf (TDD). You can send questions or
comments 24 hours daily and exchange messages with a technical support specialist during normal business
hours for the call center in your region.
32
LD25 Series SATA Product Manual, Rev. C
Customer Service Operations
Warranty Service
Seagate offer s worldwi de custom er supp ort for Seagate pro duct s . Seagate distr i butors, OEM s and other direct
customers should contact their Seagate Customer Service Operations (CSO) representative for warrantyrelated issues. Resellers or end users of drive products should contact their place of purchase or Seagate
warranty service for assistance. Have your serial number and model or part number available.
Data Recove ry Services
Seagate offers data recovery services for all formats and all brands of storage media. Our data recovery
services labs are currently located throughout the world. . Additional information, including an online request
form and data loss prevention resources, is available at http://services.seagate.com/index.aspx
Authorized Service Centers
Seagate Service Centers are available on a global basis for the return of defective products. Contact your
customer support representative for the location nearest you.
USA/Canada/Latin America support services
For an extensive list of telephone numbers to technical support, presales and warranty service in USA/
Canada/Latin America, including business hours, go to the "Contact Us" page on www.seagate.com.
Global Customer Support
Presales, Technical, and Warranty Support
Call Center Toll-free Direct dial
USA, Canada,
and Mexico 1-800-SEAGATE +1-405-324-4700
Data Recovery Services
Call Center Toll-free Direct dial FAX
USA, Canada, 1-800-475-01435 +1-905-474-2162 1-800-475-0158
and Mexico +1-905-474-2459
Europe, the Middle East and Africa Support Services
For an extensive list of telephone numbers to technical support, presales and warranty service in Europe, the
Middle East and Africa, go to the "Contact Us" page on www.seagate.com.
Asia/Pacific Support Services
For an extensive list of telephone numbers to technical support, presales and warranty service in Asia/Pacific,
go to the "Contact Us" page on www.seagate.com.
LD25 Series SATA Product Manual, Rev. C
33
Index
A
ACA 15
acoustics 4, 13
Active mode 9
Address 23
AFR 14
Agency certification 14
Altitude 11
Altitude, nonoperating 4
Altitude, operating 4
Ambient temperature 4, 11
ambient temperature 6
Annualized Failure Rate 14
Annualized Failure Rate (AFR) 4
Areal density 3, 5
ATA commands 23
ATA data-transfer modes supported 3
Australia/New Zealand Standard AS/NZS3548 1995
15
Australian Communication Authority (ACA) 15
Australian C-Tick 15
Average seek time 6
Average seek, read 3
Average seek, write 4
B
bels 4
BPI 3
buffer 3, 5
Bytes per sector 3, 5
C
cables and connectors 18
Cache 3
cache 5
capacity 5
case temperature 11
CE mark 14
certification 14
Check Power Mode 24
chemical substances 16
Class B computing device 15
compatibility 14
Conducted noise 9
Conducted RF immunity 13
Configuring the drive 17
connectors 18
CSA C22.2 (950) 14
current 4
Cylinders 5
cylinders 3
D
data-transfer rates 1
DC power 7
Default logical geometry 5
Default sectors per track 3
density 3
Device Configuration Freeze Lock 23
Device Configuration Restore 23
Device Configuration Set 23
Diagnostics 23
dimensions 19
Discs 3
dissipation 7
Download Microcode 23
E
ead/write heads 3
Electrical fast transient 13
Electromagnetic compatibility 14
Electromagnetic Co mpati b ility Directive (8 9/336/EEC)
14
Electromagnetic immunity 13
Electrostatic discharge 13
electrostatic discharge (ESD) 17
EN 55022, Class B 14
EN 55024 14
EN 60950 14
Environmental protection 16
Environmental specifications 11
error-correction algorithms 1
errors 4, 14
ESD 17
EU 14
European Union (EU) requirements 14
European Union Restriction of Hazardous Substanc-
es 16
evice Configuration Identify 23
Execute Device Diagnostics 23
F
FCC verification 15
features 1
Federal Communications Commission 15
Flush Cache 23
Flush Cache Extended 23
Formatted capacity 5
Formatted Gbytes 3
Freeze Lock 23
G
Gbytes 5
geometry 5
gradient 4
34
LD25 Series SATA Product Manual, Rev. C
Guaranteed sectors 3, 5
guaranteed sectors 5
mounting screws 12
mounting the drive 17
H
handling 17
Handling precautions 17
heads 3, 5
Height 3
height 6
Humidity 11
humidity 4
I
I/O data-transfer rate 3, 5
Identify 23
Identify Device 23
Identify Device command 26
Idle 7, 24
Idle and Standby timers 10
Idle Immediate 24
Idle mode 4, 9
Idle mode power 7
IEC950 14
Information Technology Equipment (ITE) 14
Initialize Device Parameters 23
Input noise ripple 9
Interface 5
interface 21
Interleave 5
Internal data transfer rate 3
Internal data-transfer rate 5
is 6
ISO document 7779 13
ITE 14
N
noise 9
nominal power 6
Nonoperating shock 12
Nonoperating vibration 12
Nonrecoverable read errors 4
nonrecoverable read errors 14
O
operating power and current 7
Operating shock 12
Operating vibration 12
P
Physical characteristics 6
Physical organization 5
Physical read/write heads 3
point-to-point 2, 18
Power consumption 7
power dissipation 7
power management 9
Power specifications 7
Power-management modes 9
Power-on to Ready 6
Power-on to ready 3
precautions 17, 19
programmable power management 9
Q
quick reference 3
K
Korean RRL 15
L
latency 3
LBA mode 5
Lead 16
Length 3
length 6
Load/Unload 14
logical geometry 5
M
master/slave 2
Max Address 23
maximum temperature 11
Microcode 23
mounting 19
R
Radiated RF immunity 13
Radio and television interference 15
radio frequency (RF) 13
random track location 7
Read Buffer 23
Read DMA 23
Read DMA Extended 23
Read DMA without Retries 23
read errors 4, 14
Read Long with Retries 23
Read Long without Retries 23
Read Multiple 23
Read Multiple Extended 23
Read Native Max Address 23
Read Native Max Address Extended 23
Read Sectors 23
Read Sectors Extended 23
Read Sectors without Retries 23
LD25 Series SATA Product Manual, Rev. C
35
Read Verify Sectors 23
Read Verify Sectors Extended 23
Read Verify Sectors without Retries 23
Read/write heads 5
read/write power and current 7
Recording density 3, 5
Recording technology 5
Relative humidity 4, 11
Reliability 14
resistance 9
Retries 23
RF 13
RoHS 16
RPM 3
RRL 15
S
S.M.A.R.T. 24
S.M.A.R.T. implementation 23
Safety certification 14
SATA 5, 21
screws 12, 19
sector 5
Sectors per track 5
sectors per track 3
Security Disable Password 25
Security Erase Prepare 25
Security Erase Unit 25
Security Freeze Lock 25
Security Set Password 25
Security Unlock 25
Seek 23
seek mode 7
Seek time 6
seek time 3
Seeking 7
Serial ATA 5
Serial ATA (SATA) interface 21
serial ATA ports 2
Service Life 14
servo electronics 7
Set Features 23
Set Max Address 23
Set Multiple Mode 24
Shock 12
Shock, nonoperating 4
Shock, operating 4
single-track seeks 6
Sleep 24
Sleep mode 10
sound power 4
Specification summary table 3
Spindle speed 3, 5
Spinup 7
spinup power 7
Standby 7, 24
Standby Immediate 24
Standby mode 4, 7, 10
Standby to Ready 6
Standby to ready 3
Start/stop times 6
Startup current 4
static-discharge 17
support services 31
Surge immunity 13
T
technical support services 31
temperature 4, 6, 11
Temperature gradient 4, 11
timers 10
TPI 3
Track density 3, 5
Track-to-track seek time 3, 6
Tunneling Magnetoresistive (TMR) heads 1
TUV North America 14
U
UL 1950 14
V
Vibration 12
Vibration, nonoperating 4
Vibration, operating 4
Voltage dips, interrupts 13
Voltage tolerance 4, 9
W
Warranty 14
Weight 3
weight 6
Wet bulb temperature 4, 11
Width 3
width 6
Write Buffer 24
Write DMA 24
Write DMA Extended 24
Write Long with Retries 24
Write Long without Retries 24
Write Multiple 24
Write Sectors 24
36
LD25 Series SATA Product Manual, Rev. C
Seagate Technology LLC
920 Disc Drive, Scotts Valley, California 95066-4544, USA
Publication Number: 100371155, Rev. C, Printed in USA
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