2001 Seagate Technology LLC All rights reserved
Publication Number: 100140718, Rev. A, July 2001
Seagate, Seagate Technology and the Seagate logo are registered
trademarks of Seagate Technology LLC. SeaShield, SeaShell and U
Series CE 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 change, without notice, product offerings
or specifications. No part of this publication may be reproduced in any
form without written permission from Seagate Technology LLC.
This manual describes the functional, mechanical and interface specifications for the ST380020ACE, ST360020ACE, ST340810ACE and the
ST320410ACE. These drives provide the following key features:
8.9 msec seek time, 5,400-RPM and 2-Mbyte buffer combine for
•
excellent desktop performance
Low power consumption
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High instantaneous ( burst) data-tr ansfer rate s (up to 100 Mbyte s per
•
second) using Ultra DMA mode 5
Giant magnetoresistive (GMR) recording heads and GPRML technol-
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ogy, which provide the drives with increased areal density
State-of-the-art cache and on-the-fly error-correction algorithms
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Full-track multiple-sector transfer capability without local processor
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intervention
Quiet operation
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350 Gs nonoperating shock
•
The innovative, shoc k-absorbing SeaShiel d
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against electrostatic discharge ( ESD) and other handling d amage. It
also includes installation instructions and jumper settings.
®
cover protects the drive
SeaTools diagnostic software performs a drive self-test that eliminates
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unnecessary drive returns.
Support for S.M.A.R.T. drive monitoring and reporting
•
Support for drive self-test (DST) with S.M.A.R.T. Execute Off-line
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Immediate
Support for Read Multiple and Write Multiple commands
•
Support for autodetection of master/slave drives that use cable select
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(CSEL)
2U Series CE Family Product Manual, Rev. A
Specification summary table
The specifications listed in this ta ble are for quic k r efe renc e. Fo r detai ls
on specification meas urement or defi nitio n, see th e appropr iate s ectio n
of this manual.
Seek measurements are taken with nominal power at 25°C ambient
temperature. All times are measured 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.
•
Full-stroke seek time is one-half the time needed to seek from the first
data cylinder to the m ax imu m d ata cy l inder an d b ac k to the first data
cylinder. The full-stro ke t ypic al v alue is dete rm in ed by ave ragi ng 10 0
full-stroke seeks in both directi on s.
Typical seek times (msec)Read Write
Track-to-track1.22.0
Average9.910.9
Full-stroke22.024.0
Average latency: 5.55 msec——
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.
1.6 Start/stop times
Power-on to Ready (sec)6.5 (typical)
Standby to Ready (sec)6.5 (typical)
Ready to spindle stop (sec)10 (typical)
8U Series CE Family Product Manual, Rev. A
1.7 Power specifications
The drive receives DC power (+5V or +12V) through a four-pin standard
drive power connector.
1.7.1 Power consumption
Power requirements f or the drives are listed in the table on page 9.
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 di sc surface and does not execute a read or
write operation. S ervo e lectron ics are ac tive. Seek mode p ower represents the worst-case power consumption, using only random seeks
with read or write latency time. This mode is not typical and is provided
for worst-case information.
Read/Write power and current
•
Read/write power is measured with the heads on track, b ased on a
16-sector write followed by a 32-msec delay, then a 16-sec tor read
followed by a 32-msec delay.
Operating power and current
•
Operating power is measured using 40 percent random seeks, 40
percent read/write mode (1 write for each 10 reads) and 20 pe rcent
drive inactive.
Idle mode power
•
Idle mode power is measured with the dri ve up to speed, with servo
electronics active and with the heads in a random track location.
Standby mode
•
During Standby mode , the drive acc epts comm ands, but the drive is
not spinning, and the servo and read /write electronics are in powerdown mode.
Figure 1. Typical startup and operation current profile
7
10U Series CE Family Product Manual, Rev. A
1.7.2 Conducted noise
Input noise ripple i s mea su re d a t the host system power su ppl y ac ro ss
an equivalent 80-ohm resistive load on the +12 volt line or an equivalent
15-ohm resistive load on the +5 volt line.
•
Using 12-volt power, the drive is expected to operate with a maximum
of 120 mV peak-to-peak square-wave injected noise at up to 10 MHz.
•
Using 5-volt power, th e dri ve is ex pected to op er ate with a ma xi mum
of 100 mV peak-to-peak square-wave injected noise at up to 10 MHz.
Note.
Equivalent resis tance is calcu lated by di viding the nomina l voltage by the typical RMS read/write current.
1.7.3 Voltage tolerance
Voltage tolerance (including noise): 5V ± 5% and 12V ± 10%
1.7.4 Power-management modes
The drive provides programmable power management to provide greater energy efficiency . In m ost sys tems, you can contr ol po wer mana gement through the system setup program. The drive features the following
power-management modes:
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
Immediate command. If the hos t has set the sta ndby ti mer, the drive
can also enter Standby mo de automatical ly after the driv e has been
inactive for a specifia ble length of time. The standby ti mer delay is
U Series CE Family Product Manual, Rev. A11
established using a Standby or Idle command. In Standby 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 enters Sleep m ode after receiv ing a Slee p command from
the host. In S leep mode, the drive buffer is disabl ed, the heads are
parked and the spindle is at res t. The drive l eaves Sleep mode a fter
it receives a Hard Reset or Soft Reset from the host. After receiving a
reset, the drive exits Sleep mo de 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 reinitia lized and begins counting down from its
specified delay times to zero. If the standby timer reaches zero before
any drive activity is require d, the dr ive make s a tran siti on to Stan dby
mode. In both Idle and Standby mode, the drive accepts all commands
and returns to Active mode when disc access is necessary.
1.8 Environmental tolerances
1.8.1 Ambient temperature
Ambient temperature i s defined as the temper a tur e o f t he env ironment
immediately surrounding the drive. Actual drive case temperature should
not exceed
ommended measurement locations are shown in Figure 3 on page 20.
Above 1,000 feet (305 m eters), the maximum temper ature is derated
linearly to 112°F (44°C) at 10,000 feet (3,048 meters).
Operating0° to 60°C (32° to 131°F)
Nonoperating–40° to 70°C (–40° to 158°F)
65°C (149°F) within the operating ambient conditions. Rec-
1.8.2 Temperature gradient
Operating/Nonoperating20°C per hour (36°F per hour) max,
without condensation
12U Series CE Family Product Manual, Rev. A
1.8.3 Humidity
1.8.3.1 Relative Humidity
Operating5% to 90% noncondensing (30% per hour max)
Nonoperating5% to 95% noncondensing (30% per hour max)
1.8.3.2 Wet bulb temperature
Operating29.4°C (84°F) max
Nonoperating40.0°C (104°F) max
1.8.4 Altitude
Operating–60.96 m to 3,048 m (–200 ft to 10,000+ ft)
Nonoperating–121.92 m to 12,192 m (–400 ft to 40,000+ ft)
1.8.5 Shock
All shock specifications assume that the drive is mounted securely with
the input shock appli ed at the drive mounting screws. Sh ock may be
applied in the X, Y or Z axis.
1.8.5.1 Operating shoc k
These drives comply with the performance levels specified in this document when subjected to a maximum op erating shock of 63 Gs (base d
on half-sine shock p ulses of 2 msec). Sh ocks should not be repe ated
more than two times per second.
1.8.5.2 Nonoperating shock
The nonoperating shock level that the drive can experience without
incurring physical damage or degradation in performance when subsequently put into operation is 350 Gs (based on nonrepetitive half-sin e
shock pulses of 1 and 2 msec duration).
1.8.6 Vibration
All vibration speci fications assume that the drive is mo unted securely
with the input vibration app lied at the dr ive mounting s crews. Vib ration
may be applied in the X, Y or Z axis.
U Series CE Family Product Manual, Rev. A13
1.8.6.1 Operati ng vibration
The following table lists the maximum vibration levels that the drive may experience while meeting the per formance standards specifie d in this document .
5–21 Hz0.02-inch displacement (peak to peak)
22–350 Hz0.5 Gs acceleration (zero to peak)
351–500 Hz0.25 Gs acceleration (zero to peak)
1.8.6.2 Nonoperating vibration
The following table lis ts the maximum nonoperatin g vibration that the
drive may experience without incurring physical damage or degradation
in performance when subsequently put into operation.
5–21 Hz0.2-inch displacement (peak to peak)
22–350 Hz5.0 Gs acceleration (zero to peak)
351–500 Hz1.0 Gs acceleration (zero to peak)
1.9 Drive acoustics
Drive acoustics are measured as overall A-weighted acoustic sound
power levels (no pure tones). All measurements are generally consistent
with ISO document 7779. Sound power measurements were taken
under essentially free-field conditions over a reflecting plane. For all
tests, the drive was oriented with the cover facing upward.
Note.
For seek mode tests, the drive was 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)
ST380020ACE, ST360020ACE, ST340810ACE and ST320410ACE
Acoustic modeIdlePerformance Seek
Sound power (bels)2.7 (typ) 3.0 (max)2.9 (typ) 3.2 (max)
14U Series CE Family Product Manual, Rev. A
1.10 Electromagnetic immunity
When properly installed in a representative host system, the drive
operates without errors or degra dation in performanc e when subjec ted
to the radio frequency (RF) environments defined in the following table:
TestDescriptionPerformance
± 2
kV; Air:
± 0.5
kV com-
kV
Electrostatic
discharge
Radiated RF
immunity
Electrical fast
transient
Surge
immunity
Conducted
RF
immunity
Voltage dips,
interrupts
Contact, HCP , VCP: ± 4
±
8 kV
80 to 1,000 MHz, 3 V/m,
80% AM with 1 kHz sine
900 MHz, 3 V/m, 50% pulse
modulation @ 200 Hz
Nonrecoverable read errors1 per 1013 bits read, max
Mean time between failures600,000 power-on hours (nom inal power ,
25°C ambient temperature)
Contact start-stop cycles50,000 cycles
(at nominal voltag e and temperature, with
60 cycles per hou r and a 5 0% duty cycle)
Preventive maintenanceNone required
1.12 Agency certification
1.12.1 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.
U Series CE Family Product Manual, Rev. A15
1.12.2 Electromagnetic compatibility
Hard drives that display the CE ma rk comply wit h the Europea n Union
(EU) requirements specified in the Electromagnetic Compatibility Directive (89/336/EEC). Testin g is performed to the levels specified by the
product standard s for Information Technology Equ ipment (ITE). E mission levels are defi ned by EN 55022, Clas s B and the immu nity levels
are defined by EN 55024.
Seagate uses an independent laboratory to confirm compliance with the
EC directives speci fied in t he previous paragrap h. Drives a re tested i n
representative end-user systems. Although CE-marked Seagate drives
comply with the dir ectives when used in the t est systems, we canno t
guarantee that all systems will c omply with th e directives. T he drive is
designed for operation inside a properly designed enclosure, with properly shielded I/O cable (if necessa ry) and termi nato rs on all unus ed I/O
ports. Computer manuf acturers and system integrators should co nfirm
EMC compliance and provide CE marking for their products.
Taiwan BSMI
If these drives have two Chinese words meaning “EMC certification”
followed by an eight digit identification number, as a Marking, it complies
with Chinese National Sta ndard (CNS) 13438 and meets the Electromagnetic Compatibili ty (EMC) Framework requirements of the Taiwanese Bureau of Standards, Metrology and Inspection (BSMI).
Korean RRL
If these models 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 comply with the Electromagnetic
Interference/Electromagnetic Susceptibility (EMI/EMS) for Class B products. Drives are tested in a representative, end-user system by a Koreanrecognized lab.
•
EUT name (model numbers): ST380020ACE, ST360020ACE,
ST340810ACE, ST32041 0AC E
If these models have the C-Tick marking, they comply with the Australia/
New Zealand Standard AS/NZ S3548 1995 and meet the Electr omagnetic Compatibility (EMC) Framework requirements of the Australian
Communication Authority (ACA).
1.12.3 FCC verification
These drives are intended to be contained solely within a personal computer or similar enclosure (not attached as an exter nal device). As su ch,
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 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 devi ce, pursuant to Subp art J, P art 15 of the FCC rul es.
Operation with noncertifie d assem blies is likely to resu lt in interf erenc e
to radio an d television reception.
Radio and television interference.
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 des igned to provide reasonable protection agai nst
such interference in a residential installation. However, there is no
guarantee that interfer ence will not occur in a particu lar installation. If
this equipment 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 s hould consult your deale r or an experienced ra dio/
television technician for additional suggestions. You may find helpful the
following booklet prepared by the Federal Communicatio ns Commis-
How to Identify and Resolve Radi o-Television Inte rference Prob-
sion:
. This booklet is available from the Supe rintendent of Doc uments,
lems
U.S. Government Printing Office, Washington, DC 20402. Refer to publication number 004-000-00345-4.
This equipment generates and
U Series CE Family Product Manual, Rev. A17
2.0 Configuring and mounting the drive
This section conta in s th e s pec if ic ati ons an d in st ru cti on s fo r c on fig ur in g
and mounting the drive.
2.1 Handling and static-discharge precautions
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:
The SeaShell™ replaces electrostatic discharge (ESD) bags. The
•
SeaShell package is a shock-ribbed, transparent clamshell enclosure
that limits a drive’s exposure to ESD and also protects against external
shocks and stresses . The design permits attaching cable s, software
loading and label/barc ode scanning with out removing the drive from
the SeaShell. This minimizes handling damage. Keep the drive in the
SeaShell package until you are ready for installation.
The drive is enclosed in a black, flexible cover called a SeaShield
•
not remove this per manent cover— it protects t he drive from el ectrostatic discharge (ESD) and minor impact damage. The soft SeaShield
cover also incl udes instal lation inst ructions a nd jumper s ettings. Removing the SeaShield voids the warranty.
Before handling the drive, put on a grounde d wrist strap, or ground
•
yourself frequentl y by touching the metal chas sis of a com puter that
is plugged into a grounded outlet. Wear a grounded wrist strap
throughout the entire installation procedure.
Handle the drive by its edges or frame
•
The drive is extremely fragile—handle it with care. Do not press down
•
on the drive top cover.
Always rest the drive on a padded, antista tic su rfac e until you moun t
•
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 factoryinstalled labels contain information needed to service the drive. Other
labels are used to seal out dirt and contamination.
only
.
.
Do
18U Series CE Family Product Manual, Rev. A
2.2 Jumper settings
2.2.1 Master/slave configuration
The options jumper block shown in Figure 2 is used to configure the drive
for operation. It is the 8-pin dual header between the interface connector
and the power connecto r. Use the following settings to c onfigure the
drive as a master or a slave.
Master or single drive
or single-drive operation with a jumper set on pins 7 and 8.
Drive as slave
Drive as master with a non-ATA-compatible slave
Set a jumper on pins 5 and 6 a nd a jumper o n pins 7 and 8. Use this
jumper s etting
installed.
. Remove all jumpers.
only
Options jumper block
. The drive is configured at the factory for a master
.
if the drive does not work as a master with no jumpers
Computers that use cable-select determine the master and slave drives
by selecting or dese lecting p in 28, CSEL, on the interfac e bus. Mas ter
and slave drives are determined by their physical position on the cable.
To enable cable select, set a jumper on pins 5 and 6 as shown in Figure
2 on page 18. Refer to your computer manual to determine whether your
computer supports this option.
2.2.3 Alternate capacity jumper
Some older computers may “hang” at startup if their BIOS detects a hard
drive that has values greater than either 4,092 (2.1 Gbytes) cylinders or
approximately 32 Gbyt es. To elim inate thi s problem , the drive inclu des
a capacity-limiting jumper that sets the drive’s default translation geometry
to 4,092 cylinders for model ST320410ACE and limits the drive’s capacity
to 2.1 Gbytes. The ST380020ACE, ST360020ACE and the ST340810ACE
are limited to 32 Gbytes when the alternate capacity jumper is used. To
realize the full capac ity of the drive, you can use thir d-party software
such as DiscWizard or Disk Manager.
If the alternate capa city j umper is used on dr ives under 32 Gbytes, the
drive’s true LBAs are found in ID words 60 and 61. On larg er-capacity
drives, the alternate capacity jumper “freezes” words 60 and 61 at a value
below the problem barrier point. The ATA Set Max command is used to
“unfreeze” and fill the real values in words 60 and 61 after the command
is issued.
Windows 98 or newer versions are needed to support drives with
capacities greater than 32 Gbytes.
2.2.4 Ultra ATA/100 cable
An 80-conductor 40-pin cable is required to run Ultra DMA mode 3, mode
4 and mode 5. This cabl e uses even -numbered c onductors connected
to the ground pins to improve signal integrity.
Notes:
1.
The drive supports both host and drive cable detection. The host
detects the 80-conductor cable by sampling pin 34, CBLID–, on
the interface bus. The drive detects the 80-cond uctor cable by
sensing a capacitor at the host side through the CBLID– signal.
The result is reported in a Fast Rise Detected bit (bit 13 of word
93 in the Identify drive parameter block).
2.
When using a 40- pin 80-con ductor cab le, attach the
black
nector to the motherboard, the
grey
drive, and the
connector to the slave.
connector to the master
blue
con-
20U Series CE Family Product Manual, Rev. A
2.1 Drive mounting
You can mount the drive in any orientation using four screws in the sidemounting holes or four screws in the bottom-mounting holes. See Figure
3 for drive mounting dimensions. Follow these important mounting
precautions when mounting the drive:
•
Allow a minimum clearanc e of 0.030 inches (0.76 mm) around the
entire perimeter of the drive for cooling.
•
Use only 6-32 UNC mounting screws. Insert the screws no more than
0.20 inch (5.08 mm) into the bottom mounting holes and no more than
0.14 inch (3.55 mm) into the side mounting holes.
•
Do not overtighten the mounting screws (maximum torque: 6 inch-lb).
•
Do not use a drive interface cable that is more than 18 inches long.
Note: Dimensions are shown in inches (mm).
1.00 ± 0.028
(25.4 ± 0.7)
3X 6-32 UNC-2B
max. insertion depth
0.14 (3.6) both sides
0.230 ± 0.015
(5.84 ± 0.38)
2.23 ± 0.03
(56.6 ± 0.8)
3.72 ± 0.03
(94.5 ± 0.8)
0.180 ± 0.015
(4.57 ± 0.38)
4X 6-32 UNC-2B
max. insertion
depth 0.22 (5.6)
3.750 ± 0.010
(95.25 ± 0.25)
4.00 ± 0.02
(101.3 ± 0.5)
Recommended
case temperature
measurement location
4.000 ± 0.010
(101.60 ± 0.25)
2.362 ± 0.010
(59.99 ± 0.25)
0.630 +0.030, –0.005
(16.00 +0.76, –0.13)
3X.250 ± .015
(6.35 ± 0.38)
(both sides)
5.75 ± 0.03
(146.2 ± 0.8)
0.125 +0.030, –0.005
(3.18 +0.76, –0.13)
Figure 3. Mounting dimensions—top, side and end view
1.750 ± 0.010
(44.45 ± 0.25)
2.375 +0.030, –0.005
(60.33 +0.76, –0.13)
Recommended
case temperature
measurement location
U Series CE Family Product Manual, Rev. A21
3.0 ATA interface
These drives use the industry-standard ATA task file interface that
supports 16-bit data transfers. It supports ATA programmed input/output
(PIO) modes 0–4; multiwor d DMA modes 0–2, and Ultr a DMA modes
0–5. The drive also s upports the use of the IORDY sig nal to provide
reliable high-speed data transfers.
You can use a da isy-chain ca ble to connect two drives to a single AT
host bus. For detailed i nformati on abou t the AT A int erface, r efer to th e
draft of
6), NCITS T13 1153D,
Standard
3.1 ATA interface signals and connector pins
Figure 4 on page 22 summarizes the signals on the ATA interface
connector that the drive supports. For a detailed description of these
signals, refer to the
AT Attachment with Packet Interface Extension (ATA/ATAPI-Rev
The Identify Drive command (command code ECH) transfer s information
about the drive to the host following power up. The data is organized as
a single 512-byte bl oc k of da ta, whose contents are shown in the table
on page 25. 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 1 of this manual for default parameter settings.
The following commands contain drive-specific features that may not be
included in the
Draft ATA-Rev 6 Standard.
U Series CE Family Product Manual, Rev. A25
WordDescriptionValue
0Configuration information:
•
Bit 15: 0 = ATA; 1 = ATAPI
•
Bit 7: removable media
•
Bit 6: removable controller
•
Bit 0: reserved
0C5A
H
1Number of logical cylinders
16,383
2ATA-reserved0000
3Number of logical heads
4Retired0000
5Retired0000
6Number of logical sectors per
logical track: 63003F
7–9Retired0000
10–19Serial number: (20 ASCII
characters, 0000
= none)ASCII
H
20Retired0000
21Retired0400
22Obsolete0004
23–26Firmware revision (8 ASCII
character string, padded with
blanks to end of string)
27–46Drive model number: (40
ASCII characters, padded
with blanks to end of string)
See the bit descriptions belo w for words 63, 88 and 93 of the
xx
Identify Drive data:
Description (if bit is set to 1)
BitWord 63
A5
H
H
H
H
H
H
H
H
0Multiword DMA mode 0 is supported.
1Multiword DMA mode 1 is supported.
2Multiword DMA mode 2 is supported.
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.
2Ultra DMA mode 2 is supported.
U Series CE Family Product Manual, Rev. A29
3Ultra DMA mode 3 is supported.
4Ultra DMA mode 4 is supported.
5Ultra DMA mode 5 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 V
IH
IL
BitWord 94
0–7Current AA M sett ing
8–15AAM Power on default
3.1.3 Set Features command
This command contr ol s the im pl eme ntation of various featu re s that the
drive supports. 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, th e command is aborted . Power-on d efault has the
read look-ahead and write caching features enabl ed. The acceptable
values for the Features register are defined as follows:
02
03
H
H
Enable write cache
(default).
Set transfer mode (based on value in Sector Count register).
Sector Count register values:
00
Set PIO mode to default (PIO mode 2).
H
01
Set PIO mode to default and disable IORDY
H
(PIO mode 2).
08
H
PIO mode 0
30U Series CE Family Product Manual, Rev. A
09
PIO mode 1
H
0A
PIO mode 2
H
0B
PIO mode 3
H
0C
PIO mode 4
H
(default)
20HMultiword DMA mode 0
21
Multiword DMA mode 1
H
22
Multiword DMA mode 2
H
40
Ultra DMA mode 0
H
41
Ultra DMA mode 1
H
42
Ultra DMA mode 2
H
43
Ultra DMA mode 3
H
44
Ultra DMA mode 4
H
45
Ultra DMA mode 5
H
05
42
55
82
AA
Enable advanced power management.
H
Auto Acoustic Management
H
FE
Performance Seek
H
80
Quiet Acoustic Seek
H
Disable read look-ahead (read cache) feature.
H
Disable write cache.
H
Enable read look-ahead (read cache) feature
H
(default).
Note.
At power-on, or after a hardware or software reset, the defaul t
values of the features are as indicated above.
U Series CE Family Product Manual, Rev. A31
3.1.4 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 attrib utes
that are susceptible to deg radation over time. If self-monitorin g determines
that a failure is likely, S.M.A.R.T. makes a status report available to the
host. Not all failur es are predi ctable. S.M.A.R. T. predict ability is lim ited to
the attributes the drive can monitor. For more information on S.M.A.R.T.
commands and implementation, see the
SeaTools diagnostic software activates a built-in drive self-test (DST)
S.M.A.R.T. comman d for D4
that eliminat es unnecessary drive r etur ns .
H
The diagnostic software ships with all new drives and is also available at:
http://seatools.sea
gate.com.
This drive is shipped with S.M.A.R.T. features disabled. You must have
a recent BIOS or software pack age th at supports S.M.A.R.T. to enabl e
this feature. The table below shows the S.M.A.R.T. command codes that
the drive uses.
Draft ATA-Rev 6 Standard.
Code in Features
Register
D0
H
D1
H
D2
H
D3
H
D4
H
D5
H
D6
H
D7
H
D8
H
D9
H
DA
H
Note.
If an appropriate code is not written to the Features Register, the
command is aborted and 0x04 (abort) is written to the Error
register.
S.M.A.R.T. Command
S.M.A.R.T. Read Data
Obsolete
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