Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate
Technology LLC in the United States and/or other countries. Momentus, SeagateSeaBOARD, SeaFONE, SeaTDD, and SeaTools are either trademarks or registered trademarks of Seagate Technology LLC or one of its affiliate d comp a nies 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 and one terabyte, or TB, equals one trillion
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 p urpo ses. Actual quan tities w ill vary based on vari ou s factors, including fi le
size, file format, features and application software. Seagate reserves the right to change,
without notice, product offerings or specifications.
• State-of-the-art cache and on-the-fly error-correction algorithms.
• Full-track multiple-sector transfer capability without local processor intervention.
• 900 Gs nonoperating shock and 350 Gs operating shock.
• SeaTools™ diagnostic software performs a drive self-test that eliminates unnecessary drive returns.
• The 3D Defense S ystem ™, which i nclude s Drive D efen se, Dat a Defe nse, and Diagnostic Defense , of fers 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.
1.1System requirements
The following hardware and software is required to use these drives.
Host system requirements:
• Windows XP with Service Pack 2 (or later) when utilizing the Windows Drive Trust API.
• System/BIOS that supports ATA Security commands.
1.2About Momentus 54 00 FDE . 2 SATA disc driv es
The Momentus® 5400 FDE.2 SATA drives contain drive trust technology providing Full-Disc Encryption (FDE)
using proven Advanced Encryption Standard (AES) data encryption and decryption.
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Momentus 5400 FDE.2 SATA Product Manual, Rev. B
Feature list
• Automatically encrypts (and decrypts) all data on the drive
• Operations are performed with no measurable performance loss
• All user data is encrypted on write operations and decrypted on read operations
Benefits
• Drive-level protection of data
• Drives that are stolen, taken out of service, or re-purposed remain fully protected
• Near instantaneous disposal and re-purposing of the drive (ensures that data from previous user is not
accessible by the new drive owner)
• Able to be deployed within a trusted computing environment
The drive encrypts every write operation and decrypts every read operation without user intervention. The
encryption and decryption is done on the drive itself, so there is a near-zero performance impact when the
drive writes and reads data. The performance-optimized encryption and decryption engine performs at the
SATA interface speed.
The purpose of full-disc encryption on the drive is to protect the data stored on the drive in the event that the
host system is lost or stolen. This data at r est pro tection a ssures th e system own er that if their system is lost or
stolen, their data will not be accessible without the correct credentials.
Note.To ensure that the system reauthenticates the user, turn the laptop power off (shut down) rather
than putting it in sleep mode. The system will authenticate the user at powerup.
Having the encryption/decryption on the drive also provides the highest level of security for data because all
data, including the boot sector bytes, operating system, temp and even the swap files are encrypted at the
drive level.
Momentus 5400 FDE.2 SATA drives contain two security interfaces:
1. The ATA Security Interface
This interface is provided for compatibility with the existing ATA Security Command Set. The ATA Security
Interface is active upon shipment and ready for use.
2. The Drive Trust Security Interface
This interface is provided to enable a robust enterprise-level security and management policy. Use of the
Drive Tr ust S ecuri ty Inte rface req uires additi on al sof twar e to mana ge t he D rive Trust interface . Please co ntact your system or software provider for more details.
1.2.1Drive state upon shipment
Upon shipment from the Seagate factory, the ATA Security Interface is enabled and functioning. The following
is the detailed state of the drive upon shipment.
• Full Disc Encryption is active and functioning. All user data is encrypted on write and decrypted on read.
• The user interface to the drive is active and all read and write commands are allowed.
• The ATA user password is null (no value).
• The ATA master password is set to the Security ID (SID).
• ATA Security is set to the unlocked state. No password is required to access the drive.
Momentus 5400 FDE.2 SATA drives may be integrated into the computer system in the same way you would
integrate a non-FDE Momentus drive.
The encryption key is enabled and operational when the drive leaves the Seagate factory. No user id is
required to access the drive, so the data on the drive is accessible to anyone possessing the drive.
Momentus 5400 FDE.2 SATA Product Manual, Rev. B
3
2.0Drive 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
ST9160824AS, ST9120827AS and ST980816AS models.
2.1Specification 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.
Guaranteed sectors312,581,808234,441,648156,301,488
Bytes per sector512
Physical read/write heads432
Discs221
Cache (Mbytes)8
Recording density in BPI (bits/inch max)870k
Track density TPI (tracks/inch max)150k
Areal density (Gbits/inch2 max)132
Spindle speed (RPM)5,400
Internal transfer rate (Mbits/sec max)352
I/O data transfer rate (Mbytes/sec max)150
ATA data-transfer modes supportedSATA 1.0, Serial ATA Revision 2.5
Height (max)9.5 +/- 0.2 mm (0.374 +/- .0078 inches)
Width (max)69.85 mm (2.75 +/- 0.0098 inches)
Length (max)100.50 +/- 0.25 mm (3.957 +/- 0.010 inches)
Weight (typical)100 grams (0.22 lb)96 grams (0.21 lb)
Average latency (msec)5.6
Power-on to ready (sec typical)3.0
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)12.5
Average seek, write (msec typical)14.5
Full-stroke seek (msec)22 (typical); 24 (max)
Startup current, +5V (typical)1.0 amps
Seek power (typical)2.0 watts
Read/write power (typical)Read: 1.9 watts; Write: 1.8 watts
Idle mode, low power (typical)0.85 watts
Standby mode0.46 watts (typical)***
Sleep mode0.46 watts (typical)***
Voltage tolerance (including noise)+5V ± 5%
Ambient temperature 0° to 60°C (operating), –40° to 70°C (nonoperating)
Temperature gradient (°C per hour max)20°C (operating)
Relative humidity5% to 90% (operating)
Relative humidity gradient30% 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 (meters below mean sea level,
max)
Shock, operating
(Gs max at 2 msec)
Shock, nonoperating
(Gs max at 2 msec)
Shock, nonoperating
(Gs max at 1 msec)
Shock, nonoperating
(Gs max at 0.5 msec)
Vibration, operating1.0 G (0 to peak, 5–500 Hz)
Vibration, nonoperating5 Gs (0 to peak, 5–500 Hz)
Drive acoustics, sound power (bels)
Idle**2.4 (typical)
Supports Hotplug operation per Serial ATA Revision 2.5
specification
30°C (nonoperating)
5% to 95% (nonoperating)
40 (nonoperating)
–304.8 m to 12,192 m (–1000 ft to 40,000+ ft)
350
800
900
400
2.6 (max)
3.2 (max)
14
bits read
600,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
600,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
T o determine the warranty for a specific drive, use a web browser to access
the following web page:
www.seagate.com/support/service/
From this page, click on the “Verify Y our W arranty” link. You will be asked to
provide the drive serial number, model number (or part number) and country
of purchase. The system will display the warranty information for your drive.
Yes (requires COMPRESET from host after a hotplug event)
Momentus 5400 FDE.2 SATA Product Manual, Rev. B
5
*One Gbyte equals one billi on 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 activity may occur ac cor ding to the S.M.A.R.T. specification, whi ch ma y in crease acoustic and
power to operational levels.
***Typical notebooks will pull power to th e drive when ente ring S3 and S4; while in the S3 and S4 states, dr ive sleep and drive standby
modes will not contribute to battery power consumption.
2.2Fo rm a tte d ca pacity
ModelFormatted capacity*Guaranteed sectors Bytes per sector
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capaci ty may vary depending on operating envi ronme nt
and formatting.
2.2.1LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,
where n is the number of guaranteed sectors as defined above.
See Section 4.2.5, "Identify Device command" (words 60-61 and 100-103) for additional information about 48bit addressing support of drives with capacities over 137 Gbytes.
2.3Default logical geom etry
CylindersRead/write headsSectors per track
16,3831663
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.
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Momentus 5400 FDE.2 SATA Product Manual, Rev. B
2.4Physica l organization
Drive modelRead/write headsNumber of discs
ST9160824AS42
ST9120827AS32
ST980816AS21
2.5Re cording and inter face technology
InterfaceSerial ATA (SATA)
Recording methodPerpendicular
Recording density BPI (bits/inch max)870k
Track density TPI (tracks/inch max)150k
Areal density (Gbits/inch2 max)
Spindle speed (RPM) (± 0.2%)5,400
Maximum Internal transfer rate (Mbits/sec)352
I/O data-transfer rate (Mbytes/sec max)150
Interleave1:1
Cache buffer8 Mbytes (8,192 kbytes)
132
2.6Physical characteristics
Drive specification
Height(mm)
(inches)
Width(mm)
(inches)
Length(mm)
(inches)
Typical weight
ST9160824AS
ST9120827AS
ST980816AS
9.5 +/-0.2
0.374 +/-0.0078
69.85 +/-0.25
2.75 +/-0.0098
100.50 +/-0.25
3.957 +/-0.010
100 grams
0.22 pounds
96 grams
0.21 pounds
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7
2.7Seek tim e
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.
T yp ical seek times (msec)Read Write
Track-to-track1.01.5
Average12.514.5
Full-stroke22.024.0
Average latency5.565.56
Note.These drives ar e de si gned to consisten tl y 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.
2.8Start/stop times
Time to readyTypical
Power-on to Ready (sec)3.08.0
St andby to Ready (sec)3.08.0
Max @ 25°C
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Momentus 5400 FDE.2 SATA Product Manual, Rev. B
2.9Power specifications
The drive receives DC power (+5V) through a native SATA power connector.
2.9.1Power consumption
Power requirements for the drives are listed in table 2. 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.
• 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 2: DC power
Power di s s ipation+5V input average (25° C)
Spinup (typical)1.0 amps
Seek2.0 watts
Read1.9 watt s
Write1.8 watts
Idle, performance*1.5 watts
Idle, active*0.9 watts
Idle, low power mode*0.85 watt s
Standby0.46 watts
Sleep0.46 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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9
2.9.1.1Typical current profile
Figure 1. Typical +5V only startup and operation current profile
2.9.2Deferred spinup
Momentus 5400 FDE.2 SATA drives do not support the deferred spinup option. If you require this option, refer
to the Momentus 5400.3 SATA Blade Server family of drives.
2.9.3Conducted 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.
2.9.4Voltage tolerance
Voltage tolerance (including noise):
5V ± 5%
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Momentus 5400 FDE.2 SATA Product Manual, Rev. B
2.9.5Power-manag eme 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 3: Power management modes
Power modesHeadsSpindleBuffer
Active (operating)TrackingRotatingFull power
Idle, performanceTrackingRotatingSelf refresh—low power
Idle, activeFloatingRotatingSelf refresh—low power
Idle, low powerParkedRotatingSelf ref resh—low power
StandbyParkedStoppedSelf refresh—low power
SleepParkedStoppedSelf refresh—low power
• 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.
• 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, thedrive buffer is in Self Refresh Low Power mode, 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 in Self Refresh Low Power mode, the heads are parked and the spindle is at rest. The drive leaves Sleep
mode after it receives a Hard Reset or Soft Reset from the host. After receiving a reset, the drive exits Sleep
mode and enters 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.
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11
2.10Environmental specifications
2.10.1Ambient 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.
Operating0° to 60°C (32° to 140°F)
Nonoperating–40° to 70°C (–40° to 158°F)
2.10.2Temperature gradient
Operating20°C per hour (68°F per hour max), without condensation
Nonoperating30°C per hour (86°F per hour max), without condensation
2.10.3Humidity
2.10.3.1Relative humidity
Operating5% to 90% noncondensing (30% per hour max)
Nonoperating5% to 95% noncondensing (30% per hour max)