.............................................
Barracuda ATA II Family
.............................................
ST330630A, ST320420A
.............................................
ST315320A, ST310210A
.............................................
Ultra ATA Interface Drives
.............................................
Product Manual
.............................................
.............................................
Barracuda ATA II Family
............................................
ST330630A, ST320420A
.............................................
ST315320A, ST310210A
.............................................
Ultra ATA Interface Drives
.............................................
Product Manual
.............................................
 2000 Seagate Technology, Inc. All rights reserved
Publication Number: 20400151-001, Rev. A, February 2000
Seagate, Seagate Technology, the Seagate logo and Barracuda are
registered trademarks of Seagate Technology, Inc. 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, Inc.
Barracuda ATA II 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Recording and interface technology . . . . . . . . . . . . . . . . . . . . 6
1.4 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.5 Seek time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.6 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.7 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.7.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
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 . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.8.3 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.8.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.8.5 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.8.6 Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.9 Drive acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.10 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.11 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.12 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.12.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.12.2 Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . 15
iv
Barracuda ATA II Family Product Manual, Rev. A
1.12.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
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/66 cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.3 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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 Device command . . . . . . . . . . . . . . . . . . . . . . . 24
3.1.3 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.1.4 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . . . . . . . . 30
Barracuda ATA II 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
Barracuda ATA II Family Product Manual, Rev. A
Barracuda ATA II Family Product Manual, Rev. A
1
Introduction
This manual describes the functional, mechanical and interface specifications for the ST330630A, ST320420A, ST315320A and the
ST310210A. These drives provide the following key features:
• Low power consumption
• Quiet operation
• High instantaneous (burst) data-transfer rates (up to 66.6 Mbytes per
second) using Ultra DMA mode 4
• 7,200-RPM spindle speed and 2-Mbyte buffer combine for superior
desktop performance
• 300 Gs nonoperating shock
• 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
• 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)
• The SeaShield® protective cover shields the drive against electrostatic
discharge (ESD) and other handling damage. It also includes installation instructions and jumper settings.
2
Barracuda ATA II 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 ST330630A
ST320420A
ST315320A
ST310210A
Guaranteed Mbytes
(×106 bytes)
30,606
20,404
15,303
10,202
Guaranteed sectors
59,777,640
39,851,760
29,888,820
19,925,880
Bytes per sector
512
Default sectors per
track
63
Default read/write
heads
16
16
16
16
Default cylinders
16,383
16,383
16,383
16,383
Physical read/write
heads
6
4
3
2
Discs
3
2
2
1
Recording density
BPI (bits/inch max)
357,452
Track density
TPI (tracks/inch)
21,368
Areal density
(Mbits/inch2 max)
7,638
Spindle speed
(RPM)
7,200
Internal data-transfer rate
(Mbits/sec max)
400
I/O data-transfer
rate
(Mbytes/secmax)
66.6
ATA data-transfer
modes supported
Cache buffer
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–4
2 Mbytes
Height (mm max)
26.1
Width (mm max)
101.8
Length (mm max)
147.0
Barracuda ATA II Family Product Manual, Rev. A
Drive Specification ST330630A
ST320420A
ST315320A
Weight (typical)
544 grams (1.2 lb)
Average latency
(msec)
4.16 msec
Power-on to ready
(sec typical)
11 sec
Standby to ready
(sec typical)
10 sec
Startup current
(typical) 12V (peak)
2.4 amps
3
ST310210A
2.0 amps
Track-to-track seek
time (msec typical)
1.2
Average seek time
(read, msec typical)
8.5
Full-stroke seek
time (msec max)
17.8 (read), 19.3 (write)
Seek power
(typical)
12.5 watts
11.6 watts
Read/Write power
(typical)
9.7 watts
8.5 watts
Idle mode
(typical)
8.0 watts
7.0 watts
Standby mode
1.5 watts (typical), 1.7 watts (max)
Sleep mode
0.8 watts (typical), 0.9 watts (max)
Voltage tolerance
(including noise)
5V ± 5% – 0.7 amps max
12V + 10%, – 5% – 2.4 amps max
Ambient temperature
0° to 55°C (op.), –40° to 65°C (nonop.)
Temperature gradient
(°C per hour max)
20°C
Relative humidity
(op. and nonop.)
8% to 80% (op.)
5% to 90% (nonop.)
Relative humidity
gradient
30% per hour max
Wet bulb temperature (°C max)
29.4 (op.), 29.4 (nonop.)
Altitude, operating
–122 m to 3,048 m (–400 ft to 10,000+ ft)
4
Barracuda ATA II Family Product Manual, Rev. A
Drive Specification ST330630A
Altitude (meters below mean sea level,
max)
ST320420A
ST315320A
–122 m to 12,192 m (–400 ft to 40,000+ ft)
Shock, operating
(Gs max at 2 msec)
63
Shock, nonoperating (Gs max at 2
msec)
300 Gs
Vibration, operating
0.5 Gs (0 to peak, 5–300 Hz)
Vibration,
nonoperating
5 Gs (0 to peak, 5–300 Hz)
Drive acoustics
Sound pressure
(dBA)
Idle mode
Seek mode
34.0 (typical), 39.0 (max)
39.0 (typical), 43.5 (max)
Nonrecoverable
read errors
1 per 1014 bits read
Mean time between
failures (power-on
hours)
500,000
Contact start-stop
cycles (25°C, 40%
relative humidity)
50,000
Service life (years)
5
SeaShield
ST310210A
Yes
Barracuda ATA II 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
ST330630A, ST320420A, ST315320A and the ST310210A.
1.1 Formatted capacity
Drive Model
Guaranteed Mbytes
(1 Mbyte = 106 bytes)
Guaranteed
sectors
Bytes per
sector
ST330630A
30,606
59,777,640
512
ST320420A
20,404
39,851,760
512
ST315320A
15,303
29,888,820
512
ST310210A
10,202
19,925,880
512
1.1.1 Default logical geometry
CHS Mode
Cylinders
Read/Write heads
Sectors per track
ST330630A
16,383
16
63
ST320420A
16,383
16
63
ST315329A
16,383
16
63
ST310210A
16,383
16
63
LBA Mode
When addressing these drives in LBA mode, all blocks (sectors) are
consecutively numbered from 0 to n–1, where n is the number of
guaranteed sectors as defined above.
1.2 Physical organization
Drive Model
Read/Write heads (GMR)
Number of discs
ST330630A
6
3
ST320420A
4
2
ST315320A
3
2
ST310210A
2
1
6
Barracuda ATA II Family Product Manual, Rev. A
1.3 Recording and interface technology
Interface
ATA
Recording method
16/17 EPRML
Recording density BPI (bits/inch)
357,452
Track density TPI (tracks/inch)
21,368
Areal density (Mbits/inch2 max)
7,638
Spindle speed (RPM) (± 0.2%)
7,200
Internal data-transfer rate
(Mbits/sec max)
400
I/O data-transfer rate
(Mbytes/sec max)
16.6 (PIO mode 4)
66.6 (Ultra DMA mode 4)
Interleave
1:1
Cache buffer
2 Mbytes
1.4 Physical characteristics
Drive Specification
ST330630A, ST320420A,
ST315320A, ST310210A
Maximum height (mm)
(inches)
26.1
1.028
Maximum width
(mm)
(inches)
101.8
4.020
Maximum length (mm)
(inches)
147.0
5.78
Typical weight
(pounds)
(grams)
544
1.2
1.5 Seek time
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.
Barracuda ATA II Family Product Manual, Rev. A
7
• 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)
Read
Write
Track-to-track
1.2
1.9
Average
8.5
9.5
Full-stroke (max)
17.8
19.3
Average latency: 4.16 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)
11 (typical)
Standby to Ready (sec)
10 (typical)
Ready to spindle stop (sec)
8 (typical)
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
8
Barracuda ATA II Family Product Manual, Rev. A
write operation. Servo electronics are active. Seek mode power 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, 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 powerdown mode.
Barracuda ATA II Family Product Manual, Rev. A
ST320420A, ST315320A and ST310210A
Power Mode
9
Typical Amps RMS
5V
12V
—
—
2.0 (peak)
Seeking (Random,
no read/write)
11.6
0.605
0.713
Operating (read/write)
8.5
0.609
0.449
Idle
7.0
0.480
0.384
Standby
1.5
0.258
0.007
Sleep
0.8
0.149
0.007
Typical Watts RMS
Spinup
ST330630A
Power Mode
Typical Amps RMS
Typical Watts RMS
5V
12V
—
—
2.4 (peak)
Seeking (Random,
no read/write)
12.5
0.602
0.793
Operating (read/write)
9.7
0.619
0.544
Idle
8.0
0.533
0.473
Standby
1.5
0.254
0.006
Sleep
0.8
0.145
0.006
Spinup
1.7.1.1 Typical current profile
2.5
Current (Amps)
2.0
1.5
1.0
0.5
0
0
1
2
3
4
5
6
7
Time (seconds)
Figure 1. Typical startup and operation current profile
8
9
10
10
Barracuda ATA II 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 voltage by the typical RMS read/write current.
1.7.3 Voltage tolerance
Voltage tolerance (including noise):
5V ± 5%
0.7 amps max
12V + 10%, – 5%
2.4 amps max
1.7.4 Power-management modes
The drive provides programmable power management to provide greater energy efficiency. In most systems, you can control power management through the system setup program. The drive features the following
power-management modes:
Power Modes
Heads
Spindle
Buffer
Active
Tracking
Rotating
Enabled
Idle
Tracking
Rotating
Enabled
Standby
Parked
Stopped
Enabled
Sleep
Parked
Stopped
Disabled
• Active mode
The drive is in Active mode during the read/write and seek operations.
• Idle mode
The buffer remains enabled, and the drive accepts all commands and
returns to Active mode any time disc access is necessary.
Barracuda ATA II Family Product Manual, Rev. A
11
• 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
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 Active 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 69°C (156°F) within the operating ambient conditions. Recommended 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 55°C (32° to 131°F)
Nonoperating
–40° to 65°C (–40° to 149°F)
12
Barracuda ATA II Family Product Manual, Rev. A
1.8.2 Temperature gradient
Operating/Nonoperating
20°C/hr (36°F/hour) max,
without condensation
1.8.3 Humidity
1.8.3.1 Relative Humidity
Operating
8% to 80% noncondensing (30% per hour max)
Nonoperating
5% to 90% 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
–122 m to 3,048 m (–400 ft to 10,000+ ft)
Nonoperating
–122 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 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 document 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 subsequently put into operation is 300 Gs (based on a nonrepetitive half-sine
shock pulse of 2 msec duration).
Barracuda ATA II Family Product Manual, Rev. A
13
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.
1.8.6.1 Operating vibration
The following table lists the maximum vibration levels that the drive may experience while meeting the performance standards specified in this document.
5–22 Hz
0.010-inch displacement (zero to peak)
22–300 Hz
0.5 Gs acceleration (zero to peak)
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.
5–22 Hz
0.10-inch displacement (zero to peak)
22–300 Hz
5.0 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)
Acoustic mode
Idle mode
Seek mode
Sound pressure
(dBA)
34.0 (typ) 39.0 (max)
39.0 (typ) 43.5 (max)
14
Barracuda ATA II 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: ± 8 kV
B
EN 61000-4-2: 95
Radiated RF
immunity
80 to 1000 MHz, 3 V/m, 80%
AM with 1 kHz sine
900 MHz, 3 V/m, 50% pulse
modulation @ 200 Hz
A
EN 61000-4-3: 96
ENV 50204: 95
Electrical
fast
transient
± 1 kV on AC mains, ± 0.5 kV
on external I/O
B
EN 61000-4-4: 95
Surge
immunity
± 1 kV differential, ± 2 kV common, AC mains
B
EN 61000-4-5: 95
Conducted
RF
immunity
150 kHz to 80 MHz, 3 Vrms,
80% AM with 1 kHz sine
A
EN 61000-4-6: 97
Voltage
dips,
interrupts
0% open, 5 seconds
0% short, 5 seconds
40%, 0.10 seconds
70%, 0.01 seconds
C
C
C
B
EN 61000-4-11: 94
1.11 Reliability
Nonrecoverable read errors
1 per 1014 bits read, max
Mean time between failures
500,000 power-on hours
(nominal power, 25°C ambient temperature)
Contact start-stop cycles
50,000 cycles
(at nominal voltage and temperature,
with 60 cycles per hour and a 50% duty
cycle)
Preventive maintenance
None required
Barracuda ATA II Family Product Manual, Rev. A
15
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.
1.12.2 Electromagnetic compatibility
Hard drives that display the CE mark comply with the European Union
(EU) requirements specified in the Electromagnetic Compatibility Directive (89/336/EEC). Testing is performed to the levels specified by the
product standards for Information Technology Equipment (ITE). Emission levels are defined by EN 55022, Class B and the immunity levels
are defined by EN 55024.
Seagate uses an 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 properly shielded I/O cable (if necessary) and terminators on all unused I/O
ports. Computer manufacturers and system integrators should confirm
EMC compliance and provide CE marking for their products.
Australian CE-Tick (N176)
If these models have the C-Tick marking, they comply with the Australia/
New Zealand Standard AS/NZS3548 1995 and meet the Electromagnetic Compatibility (EMC) Framework requirements of the Australian
Communication Authority (ACA).
1.12.3 FCC 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 certification of the device is required.
Seagate Technology, Inc. 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.
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Barracuda ATA II Family Product Manual, Rev. A
Radio and television interference. This equipment generates and
uses radio frequency energy and if not installed and used in strict
accordance with the manufacturer’s instructions, may cause interference to radio and television reception.
This equipment is designed to provide reasonable protection against
such interference in a residential installation. However, there is no
guarantee that 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 Commission: How to Identify and Resolve Radio-Television Interference Problems. This booklet is available from the Superintendent of Documents,
U.S. Government Printing Office, Washington, DC 20402. Refer to publication number 004-000-00345-4.
Barracuda ATA II 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 has a cover called SeaShield®. Do not remove this permanent cover—it protects the drive from electrostatic discharge (ESD)
and minor impact damage. The SeaShield cover also includes installation instructions and jumper settings. Removing 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 factoryinstalled labels contain information needed to service the drive. Other
labels are used to seal out dirt and contamination.
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Barracuda ATA II 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 6-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.
Master or 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.
Use this jumper setting only if the drive does not work as a master with
no jumpers installed.
Options jumper block
Drive is slave
Master or single drive
Master with non ATAcompatible slave
Cable select
Alternate capacity
(AC)
7 5 3 1
8 6 4 2
Figure 2. Master/slave jumper settings
Circuit Board
Barracuda ATA II 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” if their BIOS detects a hard drive that
has more than 4,092 cylinders at startup. To eliminate this problem, the
drive includes a capacity-limiting jumper that sets the drive’s default
translation geometry to 4,092 cylinders. This limits the drive’s capacity
to 2.1 Gbytes unless third-party software is used.
2.2.4 Ultra ATA/66 cable
An 80-conductor 40-pin cable is required to run Ultra DMA mode 3 and
mode 4. This cable uses even-numbered conductors connected to the
ground pins to improve signal integrity.
Note. 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).
2.3 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
4 on page 20 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.
• The screws should be inserted no more than 0.200 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.
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Barracuda ATA II Family Product Manual, Rev. A
Note. Dimensions are shown in mm (inches)
94.3± 0.8
[3.71± 0.03]
71.8 ± 0.8
[2.83 ± 0.03]
56.5 ± 0.8
[2.23 ± 0.03]
26.10 Max
[1.028]
5.83 ± 0.38
[0.230 ± 0.015]
Pin One J2
Pin One J3
Pin One J4
4.66± 0.38
[0.183 ± 0.015]
95.24 ± 0.35
[3.750 ± 0.014]
3.18 ± 0.27
[0.125 ± 0.011]
27.90 ± 0.27
[1.098 ± 0.011]
40.77 ± 0.27
[1.605 ± 0.011]
41.60 ± 0.33
[1.638 ± 0.013]
147.00 Max
[5.787]
44.45 ± 0.33
[1.750 ± 0.013]
101.60 ± 0.33
[4.000 ± 0.013]
4X 6-32 UNC 2B
Max Insertion
Depth 0.22 (5.6 mm)
3X 6.35 ± 0.31
[0.250 ± 0.012]
Both Sides
3X 6-32 UNC 2B
Max Insertion Depth
0.20 (5.0 mm) Both Sides
50.3 (2.00)
101.85 Max
[4.010 Max]
9.28 (0.365)
Recommended
case temperature
measurement location
Figure 3. Mounting dimensions—top, side and end view
Recommended
case temperature
measurement location
Barracuda ATA II 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
0–4. 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-4),
NCITS T13 1153D, subsequently referred to as the Draft ATA-4 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-4 Standard.
22
Barracuda ATA II Family Product Manual, Rev. A
Drive pin #
Signal name
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Reset–
Ground
DD7
DD8
DD6
DD9
DD5
DD10
DD4
DD11
DD3
DD12
DD2
DD13
DD1
DD14
DD0
DD15
Ground
(removed)
DMARQ
Ground
DIOW–
STOP
Ground
DIOR–
HDMARDY–
HSTROBE
Ground
IORDY
DDMARDY–
DSTROBE
CSEL
DMACK–
Ground
INTRQ
IOCS16–
DA1
PDIAG–
CBLID–
DA0
DA2
CS0–
CS1–
DASP–
Ground
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Host pin # and signal description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Hardware Reset
Ground
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
Host Data Bus Bit 11
Host Data Bus Bit 3
Host Data Bus Bit 12
Host Data Bus Bit 2
Host Data Bus Bit 13
Host Data Bus Bit 1
Host Data Bus Bit 14
Host Data Bus Bit 0
Device Data (15:0)
Ground
(No Pin)
DMA Request
Ground
Device I/O Write:
Stop Ultra DMA Burst
Ground
Device I/O Read:
Host Ultra DMA Ready:
Host Ultra DMA Data Strobe
Ground
I/O Channel Ready
Device Ultra DMA Ready
Device Ulta DMA Data Strobe
Cable Select
DMA Acknowledge
Ground
Device Interrupt
Reserved
Host Address Bus Bit 1
Passed Diagnostics
Cable Assembly Type Identifier
Device Address (2:0)
Device Address (2:0)
Chip Select (1:0)
Chip Select (1:0)
Drive Active/Slave Present
Ground
Pins 28, 34 and 39 are used for master-slave communication (details shown below).
Drive 1 (slave)
28
34
39
Drive 0 (master)
28
34
39
CSEL
PDIAG–
DASP–
Figure 4. I/O pins and supported ATA signals
Host
28
34
39
Barracuda ATA II Family Product Manual, Rev. A
23
3.1.1 Supported ATA commands
The following table lists ATA-standard commands that the drive supports. For a detailed description of the ATA commands, refer to the Draft
ATA-4 Standard. See Section 3.2.4 on page 30 for details and subcommands used in the S.M.A.R.T. implementation.
Command name
Command code (in hex)
ATA-standard commands
Download Microcode
92H
Execute Device Diagnostics
90H
Flush Cache
E7H
Format Track
50H
Identify Device
ECH
Initialize Device Parameters
91H
Read Buffer
E4H
Read DMA
C8H, C9H
Read Multiple
C4H
Read Sectors
20H, 21H
Read Verify Sectors
40H, 41H
Recalibrate
10H
Seek
70H
Set Features
EFH
Set Multiple Mode
C6H
S.M.A.R.T.
B0H
Write Buffer
E8H
Write DMA
CAH, CBH
Write Multiple
C5H
Write Sectors
30H, 31H
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Barracuda ATA II Family Product Manual, Rev. A
Command name
Command code (in hex)
ATA-standard power-management commands
Check Power Mode
98H or E5H
Idle
97H or E3H
Idle Immediate
95H or E1H
Sleep
99H or E6H
Standby
96H or E2H
Standby Immediate
94H or E0H
ATA-standard security commands
Security Set Password
F1H
Security Unlock
F2H
Security Erase Prepare
F3H
Security Erase Unit
F4H
Security Freeze Lock
F5H
Security Disable Password
F6H
3.1.2 Identify Device command
The Identify Device command (command code ECH) transfers information about the drive to the host following power up. The data is organized
as a single 512-byte block of data, whose contents are shown in the table
on page 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-4 Standard.
Barracuda ATA II 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
1
Number of logical cylinders
16,383
2
ATA-reserved
0000H
3
Number of logical heads
4
Retired
0000H
5
Retired
0000H
6
Number of logical sectors per
logical track: 63
003FH
Retired
0000H
Serial number: (20 ASCII
characters, 0000H = none)
ASCII
20
Retired
0000H
21
Retired
0400H
22
Obsolete
0000H
7–9
10–19
23–26
16
Firmware revision (8 ASCII
character string, padded with
blanks to end of string)
x.xx
27–46
Drive model number: (40
ASCII characters, padded
with blanks to end of string)
ST330630A
ST320420A
ST315320A
ST310210A
47
(Bits 7–0) Maximum sectors
per interrupt on Read multiple and Write multiple (16)
8010H
48
Reserved
0000H
49
Standard Standby timer,
IORDY supported and may
be disabled
2F00H
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Barracuda ATA II Family Product Manual, Rev. A
Word
Description
Value
50
ATA-reserved
0000H
51
PIO data-transfer cycle
timing mode
0200H
52
Retired
0200H
53
Words 54–58, 64–70 and 88
are valid
0007H
54
Number of current logical
cylinders
xxxxH
55
Number of current logical
heads
xxxxH
56
Number of current logical
sectors per logical track
xxxxH
57–58
Current capacity in sectors
xxxxH
59
Number of sectors transferred during a Read Multiple
or Write Multiple command
xxxxH
60–61
Total number of user-addressable LBA sectors available
ST330630A = 59,777,640
ST320420A = 39,851,760
ST315320A = 29,888,820
ST310210A = 19,925,880
62
Retired
0000H
63
Multiword DMA active and
modes supported (see note
following this table)
xx07H
64
Advanced PIO modes supported (modes 3 and 4 supported)
0003H
Minimum multiword DMA
transfer cycle time per word
(120 nsec)
0078H
Recommended multiword
DMA transfer cycle time per
word (120 nsec)
0078H
65
66
Barracuda ATA II Family Product Manual, Rev. A
Word
67
Description
27
Value
Minimum PIO cycle time
without IORDY flow control
(240 nsec)
00F0H
Minimum PIO cycle time with
IORDY flow control (120
nsec)
0078H
69–74
ATA-reserved
0000H
75
Queue depth
0000H
76–79
ATA-reserved
0000H
80
Major version number
001EH
81
Minor version number
0000H
82
Command sets supported
306BH
83
Command sets supported
4001H
84
Command sets support
extension
4000H
85
Command sets enabled
30xxH
86
Command sets enabled
0001H
87
Command sets enable
extension
4000H
88
Ultra DMA support and
current mode
(see note following this table)
xx1FH
89
Security erase time
0000H
90
Enhanced security erase
time
0000H
ATA-reserved
0000H
Hardware Reset Value
(see description following
this table)
4000H
ATA-reserved
0000H
68
91–92
93
94–127
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Barracuda ATA II Family Product Manual, Rev. A
Word
Description
Value
129–159
Seagate-reserved
xxxxH
160–255
ATA-reserved
0000H
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
Word 63
0
Multiword DMA mode 0 is supported.
1
Multiword DMA mode 1 is supported.
2
Multiword DMA mode 2 is supported.
8
Multiword DMA mode 0 is currently active.
9
Multiword DMA mode 1 is currently active.
10
Multiword DMA mode 2 is currently active.
Bit
Word 88
0
Ultra DMA mode 0 is supported.
1
Ultra DMA mode 1 is supported.
2
Ultra DMA mode 2 is supported.
3
Ultra DMA mode 3 is supported.
4
Ultra DMA mode 4 is supported.
8
Ultra DMA mode 0 is currently active.
9
Ultra DMA mode 1 is currently active.
10
Ultra DMA mode 2 is currently active.
11
Ultra DMA mode 3 is currently active.
12
Ultra DMA mode 4 is currently active.
Bit
Word 93
13
1=80-conductor cable detected, CBLID above VIH
0=40-conductor cable detected, CBLID below VIL
Barracuda ATA II Family Product Manual, Rev. A
29
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
Enable write cache (default).
03H
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
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
55H
Disable read look-ahead (read cache) feature.
82H
Disable write cache.
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.
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Barracuda ATA II Family Product Manual, Rev. A
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
that are susceptible to degradation over time. If self-monitoring determines
that a failure is likely, S.M.A.R.T. makes a status report available to the
host. Not all failures are predictable. S.M.A.R.T. predictability is limited to
the attributes the drive can monitor. For more information on S.M.A.R.T.
commands and implementation, see the Draft ATA-4 Standard.
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.
Code in Features
Register
S.M.A.R.T. Command
D0H
S.M.A.R.T. Read Data
D1H
Vendor-specific
D2H
S.M.A.R.T. Enable/Disable Attribute Autosave
D3H
S.M.A.R.T. Save Attribute Values
D4H
S.M.A.R.T. Execute Off-line Immediate
D7H
Vendor-specific
D8H
S.M.A.R.T. Enable Operations
D9H
S.M.A.R.T. Disable Operations
DAH
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.
Barracuda ATA II Family Product Manual, Rev. A
31
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Barracuda ATA II Family Product Manual, Rev. A
Barracuda ATA II Family Product Manual, Rev. A
33
34
Barracuda ATA II Family Product Manual, Rev. A
Seagate Technology, Inc.
920 Disc Drive, Scotts Valley, California 95066, USA
Publication Number: 20400151-001, Rev. A, Printed in USA