. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
U Series CE Family
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ST380020ACE, ST360020ACE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ST340810ACE, ST320410ACE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ultra ATA Interface Drives
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product Manual
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
U Series CE Family
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ST380020ACE, ST360020ACE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ST340810ACE, ST320410ACE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ultra ATA Interface Drives
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product Manual
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
U Series CE Family Product Manual, Rev. A
iii
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Specification summary table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1.1 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Physical organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 Recording and interface technology . . . . . . . . . . . . . . . . . . . . 6
1.4 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.5 Seek time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.6 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.7 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.7.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.7.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.7.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.7.4 Power-management modes . . . . . . . . . . . . . . . . . . . . . 10
1.8 Environmental tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.8.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.8.2 Temperature gradient . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.8.3 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.8.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.8.5 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.8.6 Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.9 Drive acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.10 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.11 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.12 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.12.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.12.2 Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . 15
iv
U Series CE Family Product Manual, Rev. A
1.12.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . 17
2.1 Handling and static-discharge precautions . . . . . . . . . . . . . . 17
2.2 Jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.2.1 Master/slave configuration . . . . . . . . . . . . . . . . . . . . . . 18
2.2.2 Cable-select option . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.2.3 Alternate capacity jumper . . . . . . . . . . . . . . . . . . . . . . . 19
2.2.4 Ultra ATA/100 cable . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.1 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.0 ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1 ATA interface signals and connector pins . . . . . . . . . . . . . . 21
3.1.1 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . 23
3.1.2 Identify Drive command . . . . . . . . . . . . . . . . . . . . . . . . 24
3.1.3 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.1.4 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . . . . . . . . 31
U Series CE Family Product Manual, Rev. A
v
Figures
Figure 1. Typical startup and operation current profile . . . . . . . . . . . . 9
Figure 2. Master/slave jumper settings . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 3. Mounting dimensions—top, side and end view . . . . . . . . . 20
Figure 4. I/O pins and supported ATA signals. . . . . . . . . . . . . . . . . . 22
vi
U Series CE Family Product Manual, Rev. A
U Series CE Family Product Manual, Rev. A
1
Introduction
This manual describes the functional, mechanical and interface specifi-
cations 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
• High instantaneous (burst) data-transfer rates (up to 100 Mbytes per
second) using Ultra DMA mode 5
• Giant magnetoresistive (GMR) recording heads and GPRML technol-
ogy, 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
• Quiet operation
• 350 Gs nonoperating shock
• The innovative, shock-absorbing SeaShield® cover protects the drive
against electrostatic discharge (ESD) and other handling damage. It
also includes installation instructions and jumper settings.
• SeaTools diagnostic software performs a drive self-test that eliminates
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
Immediate
• Support for Read Multiple and Write Multiple commands
• Support for autodetection of master/slave drives that use cable select
(CSEL)
2
U Series CE Family Product Manual, Rev. A
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.
Drive Specification ST380020ACE ST360020ACE ST340810ACE ST320410ACE
Formatted Gbytes
(×10 bytes)
80
60
40
20
6
Guaranteed sectors
Bytes per sector
156,301,488
117,231,408
78,165,360
39,102,336
512
63
Default sectors per
track
Default read/write
heads
16
Default cylinders
16,383
Physical read/write
heads
4
2
3
2
2
1
1
1
Discs
Recording density
BPI (bits/inch max)
562, 436
58,000
Track density TPI
(tracks/inch)
Areal density (Mbits/
2
inch max)
32,622
5,400
Spindle speed (RPM)
Internal data-transfer
rate (Mbits/sec max)
436
100
I/O data-transfer rate
(Mbytes/sec max)
ATA data-transfer
modes
supported
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–5
Cache buffer (Mbytes)
Height (mm max)
Width (mm max)
Length (mm max)
Weight (typical)
2
26.1
101.8
147.0
680 grams (1.5 lb)
U Series CE Family Product Manual, Rev. A
3
Drive Specification ST380020ACE ST360020ACE ST340810ACE ST320410ACE
Track-to-track seek
time (msec typical)
1.2 (read) 2.0 (write)
Average seek time
(msec typical)
8.9
9.9
Average seek read
(msec typical)
Average seek write
(msec typical)
10.9
Full-stroke seek time
(msec typical)
22.0 (read) 24.0 (write)
5.55 msec
6.5 sec
Average latency
(msec)
Power-on to ready
(sec typical)
Standby to ready
(sec typical)
6.5 sec
Spindown
(sec typical)
10 sec
Startup current
(typical)
2.5 amps
7.5 watts
7.5 watts
5.0 watts
Seek power (typical)
Read/Write power
Idle mode (typical)
Standby mode
(typical)
1.2 watts
0.9 watts
Sleep mode (typical)
Voltage tolerance
(including noise)
5V ± 5%, 12V ± 10%
Ambient temperature
0° to 60°C (op.), –40° to 70°C (nonop.)
Temperature gradient
(°C per hour max)
20°C
Relative humidity
(op. and nonop.)
5% to 90% (op.)
5% to 95% (nonop.)
Relative humidity
gradient
30% per hour max
Wet bulb temperature
(°C max)
29.4 (op.), 40.0 (nonop.)
Altitude, operating
–60.96 m to 3,048 m (–200 ft to 10,000+ ft)
4
U Series CE Family Product Manual, Rev. A
Drive Specification ST380020ACE ST360020ACE ST340810ACE ST320410ACE
Altitude (meters be-
low mean sea level,
max)
–121.92 m to 12,192 m (–400 ft to 40,000+ ft)
63 Gs
Shock, operating
(Gs max at 2 msec)
Shock, nonoperating
(Gs max at 1 and 2
msec)
350 Gs
Vibration, operating
0.5 Gs (0 to peak, 22–350 Hz)
Vibration,
nonoperating
5 Gs (0 to peak, 22–350 Hz)
Drive acoustics
Sound power in bels
2.7 (typical), 3.0 (max)
2.9 (typical), 3.2 (max)
Idle mode
Performance Seek
Nonrecoverable
read errors
13
1 per 10 bits read
Mean time between
failures (power-on
hours)
600,000
Contact start-stop cy-
cles (25°C, 40%
relative humidity)
50,000
Yes
SeaShield
U Series CE Family Product Manual, Rev. A
5
1.0 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
ST380020ACE, ST360010ACE, ST340810ACE and the
ST320410ACE.
1.1 Formatted capacity
Drive Model
Formatted Gbytes
Guaranteed
sectors
Bytes per
sector
ST380020ACE
ST360020ACE
ST340810ACE
ST320410ACE
80
60
40
20
156,301,488
117,231,408
78,165,360
39,102,336
512
512
512
512
1.1.1 Default logical geometry
CHS Mode
Cylinders
Read/Write
heads
Sectors per
track
ST380020ACE
ST360020ACE
ST340810ACE
ST320410ACE
16,383
16,383
16,383
16,383
16
16
16
16
63
63
63
63
LBA Mode
When addressing drive in LBA mode, all blocks (sectors) are consecu-
tively numbered from 0 to n–1, where n is the number of guaranteed
sectors as defined above.
6
U Series CE Family Product Manual, Rev. A
1.2 Physical organization
Drive Model
ST380020ACE
ST360020ACE
ST340810ACE
ST320410ACE
Read/Write heads (GMR)
Number of discs
4
3
2
1
2
2
1
1
1.3 Recording and interface technology
Interface
ATA
Recording method
96/102 GPRML
562,436
58,000
Recording density BPI (bits/inch)
Track density TPI (tracks/inch)
Areal density (Mbits/inch2 max)
Spindle speed (RPM) (± 0.2%)
32,622
5,400
Internal data-transfer rate
(Mbits/sec max)
436
I/O data-transfer rate
(Mbytes/sec max)
16.6 (PIO mode 4)
100 (Ultra DMA mode 5)
Interleave
1:1
2
Cache buffer (Mbytes)
1.4 Physical characteristics
Drive Specification
ST380020ACE, ST360020ACE
ST340810ACE, ST320410ACE
Maximum height
Maximum width
(mm)
(inches)
26.1
1.028
(mm)
(inches)
101.8
4.020
Maximum length (mm)
(inches)
147.0
5.78
Typical weight
(grams)
(pounds)
680
1.5
U Series CE Family Product Manual, Rev. A
7
1.5 Seek time
Seek measurements are taken with nominal power at 25°C ambient
temperature. All times are measured using drive diagnostics. The spec-
ifications 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 maximum data cylinder and back to the first data
cylinder. The full-stroke typical value is determined by averaging 100
full-stroke seeks in both directions.
Typical seek times (msec)
Track-to-track
Read
1.2
Write
2.0
Average
9.9
10.9
24.0
—
Full-stroke
22.0
—
Average latency: 5.55 msec
Note. These drives are designed to consistently meet the seek times rep-
resented 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 format-
ted, 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)
Standby to Ready (sec)
Ready to spindle stop (sec)
6.5 (typical)
6.5 (typical)
10 (typical)
8
U 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 for 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 disc surface and does not execute a read or
write operation. Servo electronics are active. Seek mode power rep-
resents 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, based on a
16-sector write followed by a 32-msec delay, then a 16-sector 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 percent
drive inactive.
• 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 mode.
U Series CE Family Product Manual, Rev. A
9
Typical Amps Means
Power Mode
Spinup
Typical Watts
5V
12V
—
0.75
2.5
Seek (Random,
no read/write)
Performance mode
7.5
0.83
0.279
Operating (read/write)
Performance mode
7.5
5.0
1.2
0.9
0.94
0.63
0.2
0.233
0.154
0.017
0.0125
Idle
Standby
Sleep
0.15
1.7.1.1 Typical current profile
Current (amps)
2.0
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
5
1
2
3
4
6
7
Time (seconds)
Figure 1. Typical startup and operation current profile
10
U Series CE Family Product Manual, Rev. A
1.7.2 Conducted noise
Input noise ripple is measured at the host system power supply across
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, 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 volt-
age 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 great-
er energy efficiency. In most systems, you can control power manage-
ment through the system setup program. The drive features the following
power-management modes:
Power Modes Heads
Spindle
Rotating
Rotating
Stopped
Stopped
Buffer
Active
Idle
Tracking
Tracking
Parked
Enabled
Enabled
Enabled
Disabled
Standby
Sleep
Parked
• 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
Immediate command. If the host 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 timer delay is
U Series CE Family Product Manual, Rev. A
11
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 mode after receiving a Sleep command from
the host. In Sleep mode, the drive 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 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.
1.8 Environmental tolerances
1.8.1 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. Rec-
ommended measurement locations are shown in Figure 3 on page 20.
Above 1,000 feet (305 meters), the maximum temperature is derated
linearly to 112°F (44°C) at 10,000 feet (3,048 meters).
Operating
0° to 60°C (32° to 131°F)
Nonoperating
–40° to 70°C (–40° to 158°F)
1.8.2 Temperature gradient
Operating/Nonoperating
20°C per hour (36°F per hour) max,
without condensation
12
U Series CE Family Product Manual, Rev. A
1.8.3 Humidity
1.8.3.1 Relative Humidity
Operating
5% to 90% noncondensing (30% per hour max)
Nonoperating
5% to 95% noncondensing (30% per hour max)
1.8.3.2 Wet bulb temperature
Operating
29.4°C (84°F) max
Nonoperating
40.0°C (104°F) max
1.8.4 Altitude
Operating
–60.96 m to 3,048 m (–200 ft to 10,000+ ft)
–121.92 m to 12,192 m (–400 ft to 40,000+ ft)
Nonoperating
1.8.5 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.
1.8.5.1 Operating shock
These drives comply with the performance levels specified in this docu-
ment when subjected to a maximum operating shock of 63 Gs (based
on half-sine shock pulses of 2 msec). Shocks should not be repeated
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 subse-
quently put into operation is 350 Gs (based on nonrepetitive half-sine
shock pulses of 1 and 2 msec duration).
1.8.6 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.
U Series CE Family Product Manual, Rev. A
13
1.8.6.1 Operating vibration
The following table lists the maximum vibration levels that the drive may expe-
rience while meeting the performance standards specified in this document.
5–21 Hz
0.02-inch displacement (peak to peak)
0.5 Gs acceleration (zero to peak)
0.25 Gs acceleration (zero to peak)
22–350 Hz
351–500 Hz
1.8.6.2 Nonoperating vibration
The following table lists the maximum nonoperating vibration that the
drive may experience without incurring physical damage or degradation
in performance when subsequently put into operation.
5–21 Hz
0.2-inch displacement (peak to peak)
5.0 Gs acceleration (zero to peak)
1.0 Gs acceleration (zero to peak)
22–350 Hz
351–500 Hz
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 mode
Idle
Performance Seek
Sound power (bels)
2.7 (typ) 3.0 (max)
2.9 (typ) 3.2 (max)
14
U 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 degradation in performance when subjected
to the radio frequency (RF) environments defined in the following table:
Test
Description
Performance
Level
Reference
Standard
Electrostatic
discharge
Contact,HCP,VCP:±4 kV;Air:
B
A
EN 61000-4-2: 95
± 8 kV
Radiated RF 80 to 1,000 MHz, 3 V/m,
immunity
EN 61000-4-3: 96
ENV 50204: 95
80% AM with 1 kHz sine
900 MHz, 3 V/m, 50% pulse
modulation @ 200 Hz
Electrical fast ± 1 kV on AC mains, ± 0.5 kV
B
B
A
EN 61000-4-4: 95
EN 61000-4-5: 95
EN 61000-4-6: 97
transient
on external I/O
Surge
immunity
± 1 kV differential, ± 2 kV com-
mon, AC mains
Conducted
RF
150 kHz to 80 MHz, 3 Vrms,
80% AM with 1 kHz sine
immunity
Voltage dips, 0% open, 5 seconds
C
C
C
B
EN 61000-4-11: 94
interrupts
0% short, 5 seconds
40%, 0.10 seconds
70%, 0.01 seconds
1.11 Reliability
Nonrecoverable read errors
13
1 per 10 bits read, max
Mean time between failures
Contact start-stop cycles
600,000 power-on hours (nominal power,
25°C ambient temperature)
50,000 cycles
(atnominalvoltageandtemperature, with
60 cycles per hour and a 50% duty cycle)
Preventive maintenance
None 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. A
15
1.12.2 Electromagnetic compatibility
Hard drives that display the CE mark comply with the European Union
(EU) requirements specified in the Electromagnetic Compatibility Direc-
tive (89/336/EEC). Testing is performed to the levels specified by the
product standards for Information Technology Equipment (ITE). Emis-
sion 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 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 prop-
erly 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.
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 Standard (CNS) 13438 and meets the Electro-
magnetic Compatibility (EMC) Framework requirements of the Taiwan-
ese Bureau of Standards, Metrology and Inspection (BSMI).
Korean RRL
If these models have the Korea Ministry of Information and Communica-
tion (MIC) logo, they comply with paragraph 1 of Article 11 of the
Electromagnetic Compatibility control Regulation and meet the Electro-
magnetic 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 prod-
ucts. Drives are tested in a representative, end-user system by a Korean-
recognized lab.
• EUT name (model numbers): ST380020ACE, ST360020ACE,
ST340810ACE, ST320410ACE
• Certificate numbers: E-H011-01-2191 (B), E-H011-01-2206 (B),
E-H011-01-2190 (B), E-H011-01-2170 (B)
• Trade name or applicant: Seagate Technology
• Manufacturing date: June 2001
• Manufacturer/nationality: Singapore
16
U Series CE Family Product Manual, Rev. A
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 Electromag-
netic 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 com-
puter 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 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 interfer-
ence 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 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 Commis-
sion: How to Identify and Resolve Radio-Television Interference Prob-
lems. This booklet is available from the Superintendent of Documents,
U.S. Government Printing Office, Washington, DC 20402. Refer to pub-
lication number 004-000-00345-4.
U Series CE Family Product Manual, Rev. A
17
2.0 Configuring and mounting the drive
This section contains the specifications and instructions for configuring
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 cables, software
loading and label/barcode scanning without 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. Do
not remove this permanent cover—it protects the drive from electro-
static discharge (ESD) and minor impact damage. The soft SeaShield
cover also includes installation instructions and jumper settings. Re-
moving the SeaShield voids the warranty.
• Before handling the drive, put on a grounded wrist strap, or ground
yourself 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 by its edges or frame only.
• 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, 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
U 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 connector. Use the following settings to configure the
drive as a master or a slave.
Masteror single drive. The drive is configured at the factory for a master
or single-drive operation with a jumper set on pins 7 and 8.
Drive as slave. Remove all jumpers.
Drive as master with a non-ATA-compatible slave.
Set a jumper on pins 5 and 6 and a jumper on pins 7 and 8. Use this
jumper setting only if the drive does not work as a master with no jumpers
installed.
Options jumper block
Master or single drive
Drive is slave
Master with non ATA-
compatible slave
Cable select
Limit drive capacity
>32 Gbytes = 32 Gbytes
<32 Gbytes = 2.1 Gbytes
7 5 3 1
8 6 4
2
Circuit Board
Figure 2. Master/slave jumper settings
U Series CE Family Product Manual, Rev. A
19
2.2.2 Cable-select option
Computers that use cable-select determine the master and slave drives
by selecting or deselecting pin 28, CSEL, on the interface bus. Master
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 Gbytes. To eliminate this problem, the drive includes
acapacity-limitingjumperthatsetsthedrive’sdefaulttranslationgeometry
to4,092cylindersformodelST320410ACEandlimitsthedrive’scapacity
to2.1Gbytes.TheST380020ACE,ST360020ACEandtheST340810ACE
are limited to 32 Gbytes when the alternate capacity jumper is used. To
realize the full capacity of the drive, you can use third-party software
such as DiscWizard or Disk Manager.
If the alternate capacity jumper is used on drives under 32 Gbytes, the
drive’s true LBAs are found in ID words 60 and 61. On larger-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 cable uses even-numbered conductors 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-conductor 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-conductor cable, attach the blue con-
nector to the motherboard, the black connector to the master
drive, and the grey connector to the slave.
20
U Series CE Family Product Manual, Rev. A
2.1 Drive mounting
You can mount the drive in any orientation using four screws in the side-
mounting 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 clearance 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)
2.23 ± 0.03
0.180 ± 0.015
(4.57 ± 0.38)
0.230 ± 0.015
(5.84 ± 0.38)
(56.6 ± 0.8)
3.72 ± 0.03
(94.5 ± 0.8)
3X 6-32 UNC-2B
max. insertion depth
0.14 (3.6) both sides
4X 6-32 UNC-2B
max. insertion
depth 0.22 (5.6)
4.000 ± 0.010
(101.60 ± 0.25)
1.750 ± 0.010
(44.45 ± 0.25)
5.75 ± 0.03
(146.2 ± 0.8)
2.362 ± 0.010
(59.99 ± 0.25)
2.375 +0.030, –0.005
(60.33 +0.76, –0.13)
0.630 +0.030, –0.005
(16.00 +0.76, –0.13)
3.750 ± 0.010
(95.25 ± 0.25)
4.00 ± 0.02
(101.3 ± 0.5)
0.125 +0.030, –0.005
(3.18 +0.76, –0.13)
3X.250 ± .015
(6.35 ± 0.38)
(both sides)
Recommended
Recommended
case temperature
measurement location
case temperature
measurement location
Figure 3. Mounting dimensions—top, side and end view
U Series CE Family Product Manual, Rev. A
21
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; multiword DMA modes 0–2, and Ultra DMA modes
0–5. The drive also supports the use of the IORDY signal to provide
reliable high-speed data transfers.
You can use a daisy-chain cable to connect two drives to a single AT
host bus. For detailed information about the ATA interface, refer to the
draft of AT Attachment with Packet Interface Extension (ATA/ATAPI-Rev
6), NCITS T13 1153D, subsequently referred to as the Draft ATA-Rev 6
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 Draft ATA-Rev 6 Standard.
22
U Series CE Family Product Manual, Rev. A
Drive pin #
Host pin # and signal description
Signal name
–
1
2
Reset
1
2
3
4
5
6
7
8
9
Hardware Reset
Ground
DD7
Ground
3
Host Data Bus Bit 7
Host Data Bus Bit 8
Host Data Bus Bit 6
Host Data Bus Bit 9
Host Data Bus Bit 5
Host Data Bus Bit 10
Host Data Bus Bit 4
4
DD8
5
DD6
6
DD9
7
DD5
8
DD10
DD4
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
DD11
DD3
10 Host Data Bus Bit 11
11 Host Data Bus Bit 3
12 Host Data Bus Bit 12
13 Host Data Bus Bit 2
14 Host Data Bus Bit 13
15 Host Data Bus Bit 1
16 Host Data Bus Bit 14
17 Host Data Bus Bit 0
18 Device Data (15:0)
19 Ground
DD12
DD2
DD13
DD1
DD14
DD0
DD15
Ground
(removed)
DMARQ
Ground
DIOW–
STOP
Ground
(No Pin)
20
21 DMA Request
22 Ground
23 Device I/O Write:
Stop Ultra DMA Burst
24 Ground
24
25
DIOR
–
25 Device I/O Read:
Host Ultra DMA Ready:
Host Ultra DMA Data Strobe
26 Ground
27 I/O Channel Ready
Device Ultra DMA Ready
Device Ulta DMA Data Strobe
28 Cable Select
29 DMA Acknowledge
30 Ground
31 Device Interrupt
32 Reserved
33 Host Address Bus Bit 1
34 Passed Diagnostics
Cable Assembly Type Identifier
35 Device Address (2:0)
36 Device Address (2:0)
37 Chip Select (1:0)
38 Chip Select (1:0)
39 Drive Active/Slave Present
40 Ground
HDMARDY
–
HSTROBE
Ground
26
27
IORDY
DDMARDY–
DSTROBE
CSEL
28
29
30
31
32
33
34
–
DMACK
Ground
INTRQ
–
IOCS16
DA1
PDIAG
–
CBLID–
35
36
37
38
39
40
DA0
DA2
CS0
CS1
–
–
–
DASP
Ground
Pins 28, 34 and 39 are used for master-slave communication (details shown below).
Drive 1 (slave)
Drive 0 (master)
Host
28
34
39
28
34
39
CSEL
28
34
39
–
PDIAG
DASP–
Figure 4. I/O pins and supported ATA signals
U Series CE Family Product Manual, Rev. A
23
3.1.1 Supported ATA commands
The following table lists ATA-standard commands that the drive sup-
ports. For a detailed description of the ATA commands, refer to the Draft
ATA-Rev 6 Standard. See Section 3.1.4 on page 31 for details and
subcommands used in the S.M.A.R.T. implementation.
Command name
ATA-standard commands
Download Microcode
Command code (in hex)
92H
90H
Execute Device Diagnostics
Flush Cache
E7H
Format Track
50H
Identify Device
Initialize Device Parameters
Read Buffer
ECH
91H
E4H
Read DMA
C8H, C9H
C4H
Read Multiple
Read Sectors
20H, 21H
40H, 41H
F8H
Read Verify Sectors
Read Native Max Address
Recalibrate
10H
Seek
70H
Set Features
EFH
Set Multiple Mode
Set Max Address
S.M.A.R.T.
C6H
F9H
B0H
Write Buffer
E8H
Write DMA
CAH, CBH
24
U Series CE Family Product Manual, Rev. A
Command name
Write Multiple
Command code (in hex)
C5H
Write Sectors
30H, 31H
ATA-standard power-management commands
Check Power Mode
Idle
98H or E5H
97H or E3H
95H or E1H
99H or E6H
96H or E2H
94H or E0H
Idle Immediate
Sleep
Standby
Standby Immediate
ATA-standard security commands
Security Set Password
Security Unlock
F1H
F2H
F3H
F4H
F5H
F6H
Security Erase Prepare
Security Erase Unit
Security Freeze Lock
Security Disable Password
3.1.2 Identify Drive command
The Identify Drive 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 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. A
25
Word
Description
Value
0
Configuration information:
• Bit 15: 0 = ATA; 1 = ATAPI
• Bit 7: removable media
• Bit 6: removable controller
• Bit 0: reserved
0C5AH
16,383
0000H
16
1
2
3
4
5
6
Number of logical cylinders
ATA-reserved
Number of logical heads
Retired
0000H
0000H
Retired
Numberoflogicalsectorsper
logical track: 63
003FH
0000H
7–9
Retired
10–19 Serial number: (20 ASCII
characters, 0000H = none)
ASCII
0000H
0400H
0004H
20
21
22
Retired
Retired
Obsolete
23–26 Firmware revision (8 ASCII
characterstring, paddedwith
blanks to end of string)
x.xx
ST380020ACE
ST360020ACE
ST340810ACE
ST320410ACE
27–46 Drive model number: (40
ASCII characters, padded
with blanks to end of string)
47
Maximum sectors per inter-
rupt on Read multiple and
Write multiple (32)
8020H
0000H
2F00H
48
49
Reserved
Standard Standby timer,
IORDY supported and may
be disabled
26
U Series CE Family Product Manual, Rev. A
Word
Description
Value
50
Device-specific standby
timer value
0000H
51
PIO data-transfer cycle
timing mode
0200H
0200H
52
53
Retired
Words 54–58, 64–70 and 88
are valid
0007H
xxxxH
54
55
56
Number of current logical
cylinders
Number of current logical
heads
xxxxH
Number of current logical
sectors per logical track
xxxxH
xxxxH
57–58 Current capacity in sectors
59
Number of sectors trans-
ferred during a Read Multiple
or Write Multiple command
xxxxH
ST380020ACE = 160,045,200
ST360020ACE = 120,033,900
ST340810ACE = 80,022,600
ST320410ACE = 40,011,300
60–61 Total numberof user-addres-
sable LBA sectors available
(see Section 2.2.3 for related
information)
62
63
Retired
0000H
xx07H
Multiword DMA active and
modes supported (see note
following this table)
64
65
Advanced PIO modes sup-
ported (modes 3 and 4 sup-
ported)
0003H
0078H
Minimum multiword DMA
transfer cycle time per word
(120 nsec)
U Series CE Family Product Manual, Rev. A
27
Word
Description
Value
66
Recommended multiword
DMA transfer cycle time per
word (120 nsec)
0078H
67
68
Minimum PIO cycle time
without IORDY flow control
(240 nsec)
00F0H
0078H
Minimum PIO cycle time with
IORDY flow control (120
nsec)
69–74 ATA-reserved
75 Queue depth
76–79 ATA-reserved
0000H
0000H
0000H
007EH
0000H
346BH
4B09H
4003H
80
81
82
83
84
Major version number
Minor version number
Command sets supported
Command sets supported
Command sets support
extension
85
86
87
Command sets enabled
Command sets enabled
xxxxH
xxxxH
xxxxH
Command sets enable
extension
88
Ultra DMA support and
current mode
xx3FH
(see note following this table)
89
90
Security erase time
0000H
0000H
Enhanced security erase
time
91
Advanced Power Manage-
ment value
0040H
28
U Series CE Family Product Manual, Rev. A
Word
Description
Value
92
Master Password Revision
code
FFFEH
93
94
Hardware Reset Value
(see description following
this table)
xxxxH
xxxxH
Auto Acoustic Management
Setting
95–127 ATA-reserved
0000H
0001H
xxxxH
128
Security Status
129–
159
Seagate-reserved
160–
254
ATA-reserved
0000H
255
Integrity word
xxA5H
Note. See the bit descriptions below for words 63, 88 and 93 of the
Identify Drive data:
Description (if bit is set to 1)
Bit
0
Word 63
Multiword DMA mode 0 is supported.
Multiword DMA mode 1 is supported.
Multiword DMA mode 2 is supported.
Multiword DMA mode 0 is currently active.
Multiword DMA mode 1 is currently active.
Multiword DMA mode 2 is currently active.
Word 88
1
2
8
9
10
Bit
0
Ultra DMA mode 0 is supported.
Ultra DMA mode 1 is supported.
Ultra DMA mode 2 is supported.
1
2
U Series CE Family Product Manual, Rev. A
29
3
Ultra DMA mode 3 is supported.
Ultra DMA mode 4 is supported.
Ultra DMA mode 5 is supported.
Ultra DMA mode 0 is currently active.
Ultra DMA mode 1 is currently active.
Ultra DMA mode 2 is currently active.
Ultra DMA mode 3 is currently active.
Ultra DMA mode 4 is currently active.
Ultra DMA mode 5 is currently active.
Word 93
4
5
8
9
10
11
12
13
Bit
13
1 = 80-conductor cable detected, CBLID above VIH
0 = 40-conductor cable detected, CBLID below VIL
Bit
Word 94
0–7
Current AAM setting
8–15 AAM Power on default
3.1.3 Set 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 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:
02H
03H
Enable write cache (default).
Set transfer mode (based on value in Sector Count register).
Sector Count register values:
00H Set PIO mode to default (PIO mode 2).
01H Set PIO mode to default and disable IORDY
(PIO mode 2).
08H PIO mode 0
30
U Series CE Family Product Manual, Rev. A
09H PIO mode 1
0AH PIO mode 2
0BH PIO mode 3
0CH PIO mode 4 (default)
20H Multiword DMA mode 0
21H Multiword DMA mode 1
22H Multiword DMA mode 2
40H Ultra DMA mode 0
41H Ultra DMA mode 1
42H Ultra DMA mode 2
43H Ultra DMA mode 3
44H Ultra DMA mode 4
45H Ultra DMA mode 5
05H
Enable advanced power management.
Auto Acoustic Management
FEH Performance Seek
42H
80H Quiet Acoustic Seek
Disable read look-ahead (read cache) feature.
Disable write cache.
55H
82H
AAH
Enable read look-ahead (read cache) feature (default).
Note. At power-on, or after a hardware or software reset, the default
values of the features are as indicated above.
U Series CE Family Product Manual, Rev. A
31
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 attributes
thataresusceptibletodegradationovertime. Ifself-monitoringdetermines
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-Rev 6 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:
This drive is shipped with S.M.A.R.T. features disabled. You 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 codes that
the drive uses.
CodeinFeatures S.M.A.R.T. Command
Register
D0H
D1H
D2H
D3H
D4H
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
(runs DST)
D5H
D6H
D7H
D8H
D9H
DAH
S.M.A.R.T. Read Log Sector
S.M.A.R.T. Write Log Sector
Obsolete
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 0x04 (abort) is written to the Error
register.
Seagate Technology LLC
920 Disc Drive, Scotts Valley, California 95066, USA
Publication Number: 100140718, Rev. A, Printed in USA
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