Seagate and Seagate Technology are registered tradem arks of Seagate Technology LLC.
DiscWizard, SeaTools, SeaFONE, SeaBOARD, SeaTDD, 3D Defense System and the Wave
logo are either registered trademarks or trademarks of Seagate Technology LLC. Other product names are registered trademarks or trademarks of their owners.
Seagate reserves the right to ch ange, witho ut notice, product offerings or spec ifications . No
part of this publication may be reproduc ed in any form w ithout wr itte n per mi ssio n of Seagate
• High instantaneous (burst) data transfer rates (up to 100 Mbytes per second) using Ultra DMA mode 5.
• Giant magnetoresistive (GMR) recording heads and EPRML technology, which provide the drives with
increased areal density.
• State-of-the-art cache and on-the-fly error-correction algorithms.
• Full-track multiple-sector transfer capability without local processor intervention.
• 800 Gs nonoperating shock and 225 Gs operating shock.
• SeaTools™ diagnostic software performs a drive self-test that eliminates unnecessary drive returns.
• The 3D Defense System™, which includes Drive Defense, Data Defense, and Diagnostic Defense, offers the
industry’s most comprehensive protection for disc drives.
• Support for S.M.A.R.T. drive monitoring and reporting.
• Support for Read Multiple and Write Multiple commands.
• Support for autodetection of master/slave drives that use cable select (CSEL).
Figure 1. Momentus disc drive
Momentus Blade Server Product Manual, Rev. A1
2Momentus Blade Server Product Manual, Rev. A
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
ST94811AB model drives.
2.1Specification summary
The specificatio ns lis ted in th is table ar e for quick reference. F or details on specification me as ur eme nt o r de finition, see the appropriate section of this manual.
T able 1: Specifications
Drive specificationST94811AB
Formatted Gbytes (512 bytes/sector)40
Guaranteed sectors78,140,160
Bytes per sector512
Physical read/write heads2
Discs1
Cache (Mbytes)2
Recording density, BPI (bits/inch max)642,000
Track density, TPI (tracks/inch max)100,780
Areal density (Mbits/inch
Spindle speed (RPM)5,400
Internal data transfer rate OD (Mbytes/sec max)48.25
Sustained data transfer rate OD (Mbytes/sec)34.5
I/O data transfer rate (Mbytes/sec max)100
ATA data transfer modes supportedPIO modes 0–4; Multiword DMA modes 0–2; Ultra DMA modes 0–5
Height9.5 +/–0.2 mm (0.374 +/–.0078 inches)
Width69.85 +/–0.25 mm (2.75 +/–0.0098 inches)
Length100.2 +/–0.25 mm (3.945 +/–0.0098 inches)
Weight (typical)99 grams (0.218 lb.)
Average latency (msec)5.6
Power-on to ready (sec typical)3.9
Standby to ready (sec typical)2.6 sec
Startup current 5V (peak)1.2 amps
Track-to-track seek time (msec typical)1.5 (read), 2.0 (write)
Average seek time (msec typical)12.0
Average seek, read (msec typical)12.0
Average seek, write (msec typical)14.0
2
max)65
Momentus Blade Server Product Manual, Rev. A3
Table 1: Specifications (Continued)
Drive specificationST94811AB
Full-stroke seek (msec)22 (typical); 26 (max)
Seek power (typical)2.4 watts
Read/write power (typical)2.4 watts
Idle, performance mode (typical)2.5 watts
Standby mode0.36 watts (typical)**
Sleep mode0.36 watts (typical)**
Voltage tolerance (including noise)5V ± 5%
Ambient temperature5° to 55°C (operating)
Temperature gradient (°C per hour max)20°C (operating)
Relative humidity (noncondensing)5% to 90% (operating)
Relative humidity gradient30% per hour max
Wet bulb temperature (°C max)33°C (operating)
Altitude, operating–192.12 m to 3,048 m (–650 ft to 10,000+ ft)
Altitude, nonoperating (below mean sea level, max)–304.8 m to 12,192 m (–1,000 ft to 40,000+ ft)
Shock, operating (Gs max at 2 msec)225
Shock, nonoperating (Gs max at 2 msec)800
Shock, nonoperating (Gs max at 1 msec)800
Shock, nonoperating (Gs max at 0.5 msec)400
Vibration, operating (max displacement may apply below 10
hz)
Vibration, nonoperating (max displacement may apply below
22 hz)
Drive acoustics, sound power (bels)
Idle*2.3 (typical)
Performance seek3.0 (typical)
Nonrecoverable read errors
Mean time between failures (power-on hours)500,000 at 25°C (8,760 POH/year)
300,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
100,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
*During periods of drive idle, some o ffline activity may occur according to the S. M.A.R.T. specification, which may increase acoust ic and
power to operational levels.
**Typical notebooks will pull power to the drive when entering S3 and S4; while in the S3 and S4 states, drive sleep and drive standby modes
will not contribute to battery power consumption.
4Momentus Blade Server Product Manual, Rev. A
2.2Formatted capacity
ModelFormatted capacityGuaranteed sectors Bytes per sector
ST94811AB40 Gbytes78,140,160512
2.3Default logical geometry
CylindersRead/write headsSectors per track
16,3831663
LBA mode
When addressing these d rives in LBA mode, all bl ocks (sectors) are c onsecutively numbered fr om 0 to n–1,
where n is the number of guaranteed sectors as defined above.
2.4Physical organization
ModelRead/write headsNumber of discs
ST94811AB21
2.5Recording and interface technology
TechnologySpecification
InterfaceParallel ATA
Recording methodRLL 0,11
Recording density BPI (bits/inch max)642,000
Track density TPI (tracks/inch max)100,780
2
Areal density (Mbits/inch
Spindle speed (RPM) (± 0.2%)5,400
Internal data transfer rate OD (Mbytes/sec max)48.25
Sustained data transfer rate OD (Mbytes/sec max)34.5
I/O data transfer rate (Mbytes/sec max)100 (Ultra DMA mode 5)
Interleave1:1
Cache buffer
ST94811AB 8 Mbytes (8,192 kbytes)
max)65
Momentus Blade Server Product Manual, Rev. A5
2.6Physical characteristics
Height(mm)
(inches)
Width(mm)
(inches)
Length(mm)
(inches)
Typical w eig ht(grams)
(pounds)
9.5 +/–0.2
0.374 +/–0.0078
69.85 +/–0 .25
2.75 +/–0.0098
100.2 +/–0 .25
3.945 +/–0.0098
99
0.218
2.7Seek time
Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using
drive diagnostics. The specifications 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 rand om average of at least 5, 000 measurements of see ks between
random tracks, less overhead.
Typical seek times (msec)*Read Write
Track-to-track1.52.0
Average12.014.0
Full-stroke22.026.0
Average latency5.65.6
*Measured in performance mode
Note. These drives are designed to consistently meet the seek times represented in this manual. Physical seeks,
regardless of mode (such as track-to-track and average), are expected to meet or exceed the noted values.
However, due to the manner in which these drives are formatted, benchmark tests that include command
overhead or measure logical seeks may produce results that vary from these specifications.
2.8Time to ready
Time to readyTypicalMax
Power-on to Ready (sec)3.98
Standby to Ready (sec)2.68
6Momentus Blade Server Product Manual, Rev. A
2.9Power specifications
The drive receives DC power (+5V) through the interface connector.
2.9.1Power consumption
Power requirements for the drives are listed in the table on page 7. Typical power measurements are based on
an average of drives tested, under nominal conditions, using 5.0V input voltage at 25°C ambient temperature.
• Spinup power
Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating speed.
• Seek mode
During seek mode, the read/write actuator arm moves toward a specific position on the disc surface and does
not execute a read or write operation. Servo electronics are active. Seek mode power is measured based on
three random seek operations every 100 msecs. This mode is not typical.
• Read/write power and current
Read/write power is meas ured with the heads on track, based on thr ee 63 sector read or writ e operations
every 100 msecs.
• Operating power and current
Operating power is mea sure d using 40 percent random seek s, 40 p er cent r ead /wr ite mo de ( 1 wri te fo r e ac h
10 reads) and 20 percent drive idle mode.
• Idle mode power
Idle mode power is measur ed wi th th e driv e up to s pee d, wi th ser vo electr on ics act ive and with the heads in
a random track location.
• Standby mode
During Standby mode, the driv e accepts commands, but the drive is not spinning, and the ser vo and read/
write electronics are in power-down mode.
Table 2: DC power
Power diss ipation (watts)Average (watts, 25° C)5V typ amps
*During periods of drive idle, some o ffline activity may occur according to th e S.M.A.R.T. specification, which may increase ac oustic and
power to operational levels.
2.87
0.72
Momentus Blade Server Product Manual, Rev. A7
2.9.1.1T ypical current profile
A
.5
1.2
1.0
0.8
mps
0.6
0.4
0.2
0.0
+5 Volt Current during spindle start — Typical Amperes
0.00.51.01.52.02.53.03.54.0
Seconds
4
Figure 2. Typical 5V startup and operation current profile
2.9.2Conducted noise
Input noise ripple is mea su red at the ho st system power supply acro ss an equ iv al ent 15 -o hm res ist ive load on
the +5 volt line.
Using 5-volt power, the drive is expected to operate with a maxim um of 100 mV peak-to-peak square-wav e
injected noise at up to 10 MHz.
Note. Equival ent resistance is calcul ated by dividing the nomina l voltage by the typical RMS read/write
current.
2.9.3Voltage tolerance
Voltage tolerance (including noise):
5V ± 5%
8Momentus Blade Server Product Manual, Rev. A
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
40°C (104°F) within the operating ambient conditions.
Above 1,000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet.
Operating5° to 55°C (41° to 131°F)
Nonoperating–40° to 65°C (–40° to 153°F)
2.10.2T e mperature gradient
Operating20°C per hour (68°F per hour max), without condensation
Nonoperating30°C per hour (86°F per hour max)
2.10.3Humidity
2.10.3.1Relative humidity
Operating 5% to 90% noncondensing (30% per hour max)
Nonoperating 5% to 95% noncondensing (30% per hour max)
2.10.3.2Wet bulb temperature
Operating 33°C (91.4°F max)
Nonoperating 40°C (104°F max)
2.10.4Altitude
Operating–198.12 m to 3,048 m (–650 ft to 10,000+ ft)
Nonoperating–304.8 to 12,192 m (–1,000 ft to 40,000+ ft)
Momentus Blade Server Product Manual, Rev. A9
2.10.5Shock
All shock specificat ions assume that the drive is mou nted securely with the input s hock applied at the drive
mounting screws. Shock may be applied in the X, Y, or Z axis.
2.10.5.1Operating shock
These drives compl y with the performance level s specified in this docu ment when subjected to a ma ximum
operating shock of 225 Gs based on half-sine shock pul ses of 2 msec. Shocks sh ould not be repeated more
than two times per second.
2.10.5.2Nonoperating shock
The nonoperating s hock l evel that th e driv e can expe rience withou t incur ring ph ysic al d amage or degr adatio n
in performance when subsequently put into operation is 800 Gs based on a nonrepetitive half-sine shock pulse
of 2 msec duration.
The nonoperating s hock l evel that th e driv e can expe rience withou t incur ring ph ysic al d amage or degr adatio n
in performance when subsequently put into operation is 800 Gs based on a nonrepetitive half-sine shock pulse
of 1 msec duration.
The nonoperating s hock l evel that th e driv e can expe rience withou t incur ring ph ysic al d amage or degr adatio n
in performance when subsequently put into operation is 400 Gs based on a nonrepetitive half-sine shock pulse
of 0.5 msec duration.
2.10.6Vibration
All vibration spec ifications assume that the drive is moun ted securely with the input vibration applied at the
drive mounting screws. Vibration may be applied in the X, Y, or Z axis.
2.10.6.1Operating vibration
The following table lists the maximum vibration lev els that the dri ve may expe rience while meet ing the perfor mance standards specified in this document.
5–500 Hz1.0 Gs (0 to peak). Max displacement may apply below 10 Hz.
2.10.6.2Nonoperating vibration
The following table l ists the maximum no noperating v ibration that the drive may expe rience witho ut incurring
physical damage or degradation in performance when subsequently put into operation.
5–500 Hz5.0 Gs (0 to peak). Max displacement may apply below 22 Hz.
10Momentus Blade Server Product Manual, Rev. A
2.11Acoustics
Drive acoustics a re measured as overall A -weighted acoustic soun d power levels (no pu re tones). All measurements are consistent with ISO document 7779. S ound power measureme nts 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)
T able 3: Drive level acoustics
Acoustic mode
Idle*Performance Seek
2.3 bels (typ)
2.5 bels (max)
*During periods of drive idle, some o ffline activity may occur according to th e S.M.A.R.T. specification, which may increase ac oustic and
power to operational levels.
3.0 bels (typ)
3.2 bels (max)
2.12Electromagnetic immunity
When properly installed in a representative host system, the drive operates without err ors or degradation in
performance when subjected to the radio frequency (RF) environments defined in the following table:
Max case temperature: 40°C at the case measurement location shown in Figure 4.
300,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
100,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
2.14Agency certification
2.14.1Safety certification
The drives are recogni ze d in ac co rd anc e with UL 1950 and CSA C22.2 (950 ) and m eet all applicable sections
of IEC950 and EN 60950 as tested by TUV North America.
2.14.2Electromagnetic compatibility
Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the Electromagnetic Compatibility Di rective (89/336/EE C). Testing is perform ed to the levels specif ied 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 independent laboratory to confirm compliance with the EC directives specified in the previous
paragraph. Drives are tested in representative end-user systems. Although CE-marked Seagate drives comply
with the directives wh en used in the test systems, we cannot guarantee that all systems will comply wit h the
directives. The drive is designed for operation inside a properly designed enclosure, with properly shielded I/O
cable (if necessary) and termi nators on all unu sed I/O ports. Compute r manufacture rs and system inte grators
should confirm EMC compliance and provide CE marking for their products.
12Momentus Blade Server Product Manual, Rev. A
Korean RRL
If these drives have the Korea M inistry of Information a nd Comm unicatio n (MIC) log o, they co mply with paragraph 1 of Article 11 of the Electromagnetic Compatibili ty control Regulation and meet the Electr omagnetic
Compatibility (EMC) Framework req ui remen ts of the Radio Resear c h Labo rator y (RRL) Mini st ry of Informa tio n
and Communication Republic of Korea.
These drives have been tested and comply with the Electromagnetic Interference/Electromagnetic Susceptibility (EMI/EMS) for Class B products. Drives are tested in a representative, end-user system by a Korean-recognized lab.
• EUT name (model number): ST94811AB.
• Certificate numbers:
ST94811ABE-H011-03-1189(B)
• Trade name or applicant: Seagate Technology
• Manufacturing date: June 2004
• Manufacturer/nationality: USA and Singapore
Australian C-Tick (N176)
If these models h ave the C-Tick marki ng, t hey com ply with the Aus tralia/N ew Z ealand Standard AS/NZS3548
1995 and meet the Electromagnetic Compatibility (EMC) Framework requirements of the Australian Communication Authority (ACA).
2.14.3FCC verification
These drives are intended to be contained solely within a personal computer or similar enclosure (not attached
as an external device). As such, each drive is considered to be a subassembly even when it is individually marketed to the customer. As a subassembly, no Federal Communications Commission verification or ce rt ifica tion
of the device is required.
Seagate Technology LLC has tested this device in enclosures as described above to ensure that the total
assembly (enclosure, dis c drive, motherboard, power supply, etc.) does comply with the limits for a Class B
computing device , pursuant to S ubpart J, Part 15 of the FCC rules. Ope ration with no ncertified a ssemblies is
likely to result in interference to radio and television reception.
Radio and television interferen ce. This equipment generates and uses radio frequency ene rgy and if not
installed and used in strict accordance with th e manufacturer ’s instructions, may cause i nterference 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 interference will not occur in a particular installation. If this equipment
does cause interfer ence to radio or te levision, whic h can be determi ned by turning t he 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 Feder al 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 publ ication number 004-000-00345-4.
Momentus Blade Server Product Manual, Rev. A13
14Momentus Blade Server Product Manual, Rev. A
3.0Configuring and mounting the drive
This section contains the specifications and instructions for configuring and mounting the drive.
3.1Handling and static discharge precautions
After unpacking, and before installation, the dr ive may be ex posed to pote ntial handli ng and electros tatic discharge (ESD) hazards. Observe the following standard handling and static-discharge precautions:
Caution:
• Keep the drive in the ele ctrosta tic d ischar ge (ES D) bag until you ar e read y for i nstalla tion to limi t the d rive’s
exposure to ESD.
• Before handling the drive, put on a gr oun ded wrist st ra p, or grou nd y ours elf frequently by touching the metal
chassis of a computer that is plugged into a grounded outlet. Wear a grounded wrist strap throughout 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 l abe ls c on tai n i nfo rm ation needed to service the drive. Other l ab els are
used to seal out dirt and contamination.
3.2Jumper settings
3.2.1Master/slave configuration
Use the options jumper block shown in Figure 3 to configure the drive for operation. This jumper block is the 4pin header adjacent to pi ns 1 and 2 of the I/O signal pins. For ad ditional information about us ing the Cable
select option, see Section 3.2.2.
The “Master or single drive” option is the factory default setting.
Drive is master (or single drive)
Drive is slave
Cable select
Figure 3. Jumper settings
Momentus Blade Server Product Manual, Rev. A15
3.2.2Cable-select option
Computers that use cable sele ct determine the master and slave drives by selecting or deselecting pin 28,
CSEL, on the interface bus. Master and sl ave dr iv es are det er mined by their physi c al pos i tio n on the cab le. To
enable cable se lect, set a jump er as shown in F igure 3 . R efer t o you r compu ter m anual to de termi ne whet her
your computer supports this option.
3.3Drive mounting
You can mount the d rive using fo ur screws in the side-moun ting holes or four screws i n the bottom-moun ting
holes. See Figure 4 for drive mounting dimensions. Follow these important mounting precautions when mounting 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.
3.945 +/-0.0098
(100.2 +/-.25)
0.490 +/- .010
(12.446 +/- .254)
0.680 +/- .010
(17.27 +/- .254)
Breather Hole
Do not cover
or seal.
.399
(10.135)
.157
(3.9878)
2.750 +/- .0098
(69.85 +/- .25)
inches
(mm)
3.567
(90.602)
3.567
(90.60)
.374 +/- .0078
(9.5 +/- .2)
Both sides
2X .118
.551
(13.99)
.551
(13.99)
Figure 4. Mounting dimensions—top, side and end view
Recommended case
temp. measurement location
2X M3 X 0.5-6H
Mounting holes
Both sides
.12 min. full thread
4X M3 X 0.5-6H
Mounting holes
.10 min. full thread
2.430
(61.722)
.160
(4.06)
16Momentus Blade Server Product Manual, Rev. A
4.0ATA interface
These drives use t he industry-standard ATA task file inter face that supports 16-bit d ata transfers. It suppo rts
ATA programmed input/output (PIO) mode s 0– 4; multiw ord DMA m odes 0– 2, and Ul tra DMA modes 0–5. The
drive also supports the use of the IORDY signal to provide reliable high-speed data transfers.
For detailed information about the ATA interface, refer to the draft of AT Attachment with Packet Interface Extension (ATA/ATAPI-6), NCITS T13 1410D, subsequently referred to as the Draft ATA-6 Standard.
4.1ATA interface signals and connector pins
The following table summarizes the signals on the 44-pin ATA interface connector. For a detailed description of
these signals, refer to the Draft ATA-6 Standard.
The following table lists ATA-standard commands that the dr iv e supp or ts. For a detaile d descr i pti on of the ATA
commands, refer to the Draft A TA-6 Standard. See “S.M.A.R.T commands” on page 24 for details and subcom-
mands used in the S.M.A.R.T. implementation.
Table 6: Supported commands
Command nameCommand code (in hex)
ATA-standard commands
The Identify Device command (command code ECH) transfers information about the drive to the host following
power up. The data is o rg ani ze d a s a sin gle 512-byte block of data, who se conte nts ar e sho wn in the table o n
page 27. All reserved bits or words s hould be set to zero. Parameter s listed with an “x” are drive-sp ecific 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 Draft A T A-6 St andard.
WordDescriptionValue
0
1Number of logical cylinders16,383
2ATA-reserved0000
3Number of logical heads16
4Retired0000
5Retired0000
6Number of logical sectors per logical track: 63003F
7–9Retired0000
10–19Serial number: (20 ASCII characters, 0000H = none)ASCII
(8 ASCII character string, padded with blanks to end of string)
27–46Drive model number: (40 ASCII characters, padded with blanks to end of
ST94811AB
string)
47(Bits 7–0) Maximum sectors per interrupt on Read multiple and Write mul-
8010
tiple (16)
48Reserved0000
49Standard Standby timer, IORDY supported and may be disabled2F00
50ATA-reserved0000
51PIO data-transfer cycle timing mode0200
52Retired0200
53Words 54–58, 64–70 and 88 are valid0007
54Number of current logical cylinders xxxx
H
H
H
H
H
H
H
H
H
H
H
20Momentus Blade Server Product Manual, Rev. A
WordDescriptionValue
55Number of current logical heads xxxx
56Number of current logical sectors per logical trackxxxx
57–58Current capacity in sectorsxxxx
59Number of sectors transferred during a Read Multiple or Write Multiple
xxxx
command
60–61Total number of user-addressable LBA sectors available
ST94811AB = 78,140,160
(see Section 2.2 for related information)
62Retired0000
63Multiword DMA active a nd mod es su pported (see no te foll owin g this t abl e)xx07
64Advanced PIO modes supported (modes 3 and 4 supported)0003
65Minimum multiword DMA transfer cycle time per word (120 nsec)0078
66Recommended multiword DMA transfer cycle time per word (120 nsec)0078
67Minimum PIO cycle time without IORDY flow control (240 nsec)00F0
68Minimu m PIO cycle time wi th IORDY flow control (120 nsec) 0078
69–74ATA-reserved0000
75Queue depth0000
76–79ATA-reserved0000
80Major version number007E
81Minor version number0000
82Command sets supported346B
83Command sets supported7D01
84Command sets support extension4003
85Command sets enabled34xx
86Command sets enabled3xxx
87Command sets enable extension4003
88Ultra DMA support and current mode
xx3F
(see note following this table)
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
89Security erase time0000
90Enhanced security erase time0000
91Advanced power management value0040
92Master password revision codeFFFE
93Hardware reset value (see description following this table)xxxx
94Auto acoustic management settingxxxx
95–127ATA-reserved0000
128Security status0001
129–
Seagate-reservedxxxx
159
H
H
H
H
H
H
H
H
H
Momentus Blade Server Product Manual, Rev. A21
WordDescriptionValue
160–
ATA-reserved0000
254
255Integrity wordxxA5
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)
BitWord 63
0Multiword DMA mode 0 is supp orted.
1Multiword DMA mode 1 is supp orted.
2Multiword DMA mode 2 is supp orted.
8Multiword DMA mode 0 is currently active.
9Multiword DMA mode 1 is currently active.
10Multiword DMA mode 2 is currently active.
BitWord 88
0Ultra DMA mode 0 is supported.
1Ultra DMA mode 1 is supported.
H
H
2Ultra DMA mode 2 is supported.
3Ultra DMA mode 3 is supported.
4Ultra DMA mode 4 is supported.
8Ultra DMA mode 0 is currently active.
9Ultra DMA mode 1 is currently active.
10Ultra DMA mode 2 is currently active.
11Ultra DMA mode 3 is currently active.
12Ultra DMA mode 4 is currently active.
13Ultra DMA mode 5 is currently active.
BitWord 93
131 = 80-conductor cable detected, CBLID above V
0 = 40-conductor cable detected, CBLID below VIL
IH
22Momentus Blade Server Product Manual, Rev. A
4.1.3Set Features command
This command controls the implementation of various features that the drive supports. When the drive receives
this command, it sets BSY, checks the contents of the Features re gister, clears BSY and generates an interrupt. If the value in the register does not represent a feature that the driv e supports, the comman d is aborted .
Power-on default has the rea d look-ahe ad and write cach ing features enabled . The ac ceptable va lues for th e
Features register are defined as follows:
T able 7: Features register values
02
03
Enable write cache (default).
H
Set transfer mode (based on value in Sector Count register).
H
Sector Count register values:
Set PIO mode to default (PIO mode 2).
Set PIO mode to default and disable IORDY (PIO mode 2).
PIO mode 0
PIO mode 1
PIO mode 2
PIO mode 3
PIO mode 4 (default)
Multiword DMA mode 0
Multiword DMA mode 1
Multiword DMA mode 2
Ultra DMA mode 0
Ultra DMA mode 1
Ultra DMA mode 2
Ultra DMA mode 3
Ultra DMA mode 4
Ultra DMA mode 5
05
55
82
00
H
01
H
08
H
09
H
0A
H
0B
H
0C
H
20
H
21
H
22
H
40
H
41
H
42
H
43
H
44
H
45
H
Enable advanced power management
H
Disable read look-ahead (read cache) feature.
H
Disable write cache.
H
AAHEnable read look-ahead (read cache) feature (default).
F1
Report full capacity available
H
Note.At power-on, or after a hardware or software reset, the de fault values of the features ar e as indi-
cated above.
Momentus Blade Server Product Manual, Rev. A23
4.1.4S.M.A.R.T. commands
S.M.A.R.T. provides near-ter m failure prediction for disc driv es. When S.M.A.R.T. is enabled, the drive monitors predetermined driv e attr i bute s tha t are susceptible to d egr ad ation over time. If sel f-mon ito ri ng de termi nes
that a failure is likely, S.M.A.R.T. makes a status report available to t he host. Not all failure s are predictable.
S.M.A.R.T. predictability i s limited to the attrib utes the drive can mo nitor. For more information on S.M.A.R.T.
commands and implementation, see the Draft ATA-6 Standard.
SeaTools diagnosti c software activa tes a b uilt- in driv e sel f-test ( DST S .M.A.R .T. command for D4
nates unnecessary drive returns. The diagnostic software ships with all new drives and is also available at:
) that elimi-
H
http://seatools.seagate.com.
This drive is shipped with S.M.A.R.T. features disabled. Y ou must have a recent BIOS or software package that
supports S.M.A.R.T. to enable this feature. The table below shows the S.M.A.R.T. command c odes that the
drive uses.
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.
24Momentus Blade Server Product Manual, Rev. A
5.0Seagate Technology support services
Online Services
Internet
www.seagate.com for informatio n about Seagate products and servic es. Worldwide support is availab le 24
hours daily by e-mail for your questions.
Presales Support: www.sea
Technical Support: www.seagate.com/support/email/email_disc_support.html or DiscSupport@Seagate.com
gate.com/support/email/email_presales.html or DiscPresales@Seagate.com
mySeagate
my.seagate.com is the industry’s firs t Web portal designed specific ally for OEMs and di stributors. It provi des
self-service a ccess to cr itical app lications, personaliz ed content and the tool s that allo w our partner s to manage their Seagate account fun ctions. Submit prici ng requests, order s and returns through a singl e, passwordprotected Web interface—anytime, anywhere in the world.
reseller.seagate.com
reseller.seagate.com supports Seag ate resellers with produc t information, program benefi ts and sales tools.
You may register fo r customized communication s that are not available on the web . These communications
contain product launc h, EOL, pr icing, promoti ons and oth er channel- related infor mation. To learn more about
the benefits or to register, go to reseller.sea
gate.com, any time, from anywhere in the world.
Automated Phone Services
SeaFONE® (1-800-SEAGATE) is the Seagate toll-free number (1-800-732-4283) to access our automated
self-help and di rectory a ssistance f or Seagate s upport ser vices. Using a touch- tone phone, you can find service and support phone numbers for disc drives 24 hours daily. International callers can reac h this service by
dialing +1-405-324-477 0.
Presales, Technical Support and Warranty Service
Presales Support
Our Presales Suppo rt staff can help you deter mine which Seagate products are best suited for your specific
application or computer system.
Technical Support
If you need help installing your dr iv e, consul t yo ur syste m’s documentation or contact the deal er’s support ser vices department for assista nce specific to your sy stem. Seagate techn ical support is also av ailable to assist
you online at support.sea
tion and your drive’s “ST” model number available.
SeaTDD™ (+1-405-324-3655) is a telecommunica tions devi ce fo r the deaf (TD D). You can send question s or
comments 24 hours d aily and e xcha nge m essag es wi th a technic al s upport speci alist during nor mal b usine ss
hours for the call center in your region.
Momentus Blade Server Product Manual, Rev. A25
gate.com or through one of our call centers. Have your system configuration informa-
Warranty Service
Seagate offers worldwide customer supp ort for Seagate drives. Seagate dis tributors, OEMs and other direct
customers should contact their Seagate service center representative for warranty-related issues. Resellers or
end users of drive products should contact their place of purchase or one of the Seagate warranty service centers for assistance. Have your drive’s “ST” model number and serial number available.
Authorized Service Centers
In some locations outside the US, you can contact an Authorized Service Center for service.
USA/Canada/Latin America Support Services
Presales Support
Call CenterToll-freeDirect dialFAX
Americas1-877-271-3285
Technical Support
Call CenterToll-freeDirect dialFAX
Americas1-800-SEAGATE
Warranty Service
Call CenterToll-freeDirect dialFAX / Internet
USA, Mexico and 1-800-468-3472
Latin America
Canada
Memofix
Brazil
MA Centro de Serviços
5
1-800-636-6349+1-905-660-4936+1-905-660-4951
5
—+55-21-2509-7267+55-21-2507-6672
1
+1-405-324-4730
2
+1-405-324-4700
4
+1-405-324-4720
1
3
4
+1-405-324-4704
+1-405-324-4702
+1-405-324-4722
www.memofix.com
www.mainformatica.com.br/produtos.htm
1
Hours of operation are 8:00 A.M. to 11:45 A.M. and 1:00 P.M. to 6:00 P.M., Monday through Friday (Central time)
2
For product-specific phone number
3
Hours of operation are 8:00 A.M. to 8:00 P.M., Monday through Friday (Central time)
4
Hours of operation are 8:30 A.M. to 12:15 P.M. and 1:30 P.M. to 5:30 P.M., Monday through Friday (Central time)
5
Authorized Service Center
26Momentus Blade Server Product Manual, Rev. A
European Support Services
For presales and technical support in Europe, dial the toll-free number for your specific location. If your location
is not listed h ere, dial our presales and te chnical support call center at +1-405-324-4714 from 8:00
11:45
A.M. and 1:00 P.M. to 5:00 P.M. (Central Europe time) Monday through Friday. The presales and technical
support call center is located in Oklahoma City, USA.
For European warranty service , dial the tol l-free numb er for you r specific locatio n. If your l ocation is not liste d
here, dial our European warranty service center at +31-20-316-7222 from 8:30
A.M. to 5:00 P.M. (Central
Europe time) Monday through Friday. The warranty service center is located in Amsterdam, The Netherlands.
Toll-Free Support Numbers
Call CenterPr esales and Technical SupportWarranty Service
For presales and tec hnical suppo rt in Africa and the Midd le East, dia l our presal es and technic al support c all
center at +1-405-32 4-471 4 from 8:00
day through Friday. The presales and technical support call center is located in Oklahoma City, USA.
For warranty service in Afric a and th e Middle East, dia l our Eur opean war ranty se rvice c enter at + 31-20-3167222 from 8:30
A.M. to 5:00 P.M. (Centr al Euro pe time ) Mond ay throu gh Frid ay, or send a FAX to +31-20-653-
3513. The warranty service center is located in Amsterdam, The Netherlands.
A.M. to 11:45 A.M. and 1:00 P.M. to 5:00 P.M. (Central Europe time) Mon-
Momentus Blade Server Product Manual, Rev. A27
Asia/Pacific Support Services
For Asia/Pacific pr esales and technical s upport, dial the toll-fre e number for your specific location. The Asia/
Pacific toll-free numbers are available from 6:00
ern time) Monday through Friday, except as noted. If your location is not listed here, direct dial one of our technical support loca tions. Warranty service is available from 9:0 0
10:00
A.M. to 7:00 P.M. November through March (Australian Eastern time) Monday through Friday.
Call CenterToll-freeDirect dialFAX
Australia1800-14-7201——
China (Mandarin)
1, 4
800-810-9668+86-10-6225-5336—
Hong Kong800-90-0474——
Hong Kong (Cantonese)
2, 4
India
1, 4
001-800-0830-1730——
1-600-33-1104——
Indonesia001-803-1-003-2165——
3, 4
Japan
0034 800 400 554——
Malaysia1-800-80-2335——
New Zealand0800-443988——
Singapore800-1101-150—+65-6488-7525
Taiwan (Mandarin)
acoustics 11
agency certification (regulatory) 12
altitude 9
ambient co nditions 3
ambient temperature 6, 9
areal density 1, 5
ATA interface 17
ATA-standard commands 18
Australian C-Tick 13
autodetection 1
average seek time 6
B
BPI 5
buffer 5
burst 1
C
cable select 1
cable-select option 16
cache 1, 5
case temperature 9
CE mark 12
certification 12
Check Power Mode 19
commands 18
compliance 12
conducted noise 8
conducted RF immunity 11
configuring the drive 15
connector pins 17
CSA C22.2 (950) 12
CSEL 16
C-Tick 13
current profile 8
cycles 12
D
Data Defense 1
data-transfer rates 1
DC power 7
density 5
Diagnostic Defense 1
diagnostic software 1, 24
discs 5
dissipation 7
master/slave 1
Master/slave configuration 15
maximum temperature 9
Mean time between failures (MTBF) 12
modes 17
monitoring 1
mounting the drive 15, 16
R
radiated RF immunity 11
radio and television interference 13
radio frequency (RF) 11
random track location 7
Read Buffer 18
Read DMA 18
Read DMA Extended 18
read errors 12
Read Multiple 1, 18
Read Multiple Extended 18
Read Native Max Address 18
Read Native Max Address Extended 18
Read Sectors 18
Read Sectors Extended 18
Read Verify Sectors 18
Read Verify Sectors Extended 18
read/write heads 5
read/write power and current 7
recording and interface technology 5
recording density 5
recording heads 1
recording method 5
register 23
relative humidity 9
reliability 12
resistance 8
RF 11