Seagate U Series 9 CE User Manual
U Series 9 ce
ST3160022ACE
ST3120025ACE
ST380012ACE
U Series 9 ce
ST3160022ACE
ST3120025ACE
ST380012ACE
©2003– 2004, Seagate Technology LLC All rights reserved
Publication number: 100271705, Rev. F
May 2004
Seagate, Seagate Technology, and the Seagate logo are registered trademarks of Seagate
Technology LLC. SeaTools, SeaFONE, SeaBOARD, and SeaTDD 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 of Seagate
Technology LLC.
Revision status summary sheet
Revision Date Sheets Affected
Rev. A 01/31/03 All.
Rev. B 04/15/03 Page 24.
Rev. C 05/07/03 Pages 6, 30-32, and 37-41
Rev. D 07/14/03 Pages 1, 4, 5, 7, 11, 12, and 13. Also new design and page size.
Rev. E 12/01/03 Page 16.
Rev. F 05/18/04 Page 3 - 5 and 7.
Contents
1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Specification summary table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.4 Physical organization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.5 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.6 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.7 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.8 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.9 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.9.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.9.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.9.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.9.4 Power-management modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.10 Environmental specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10.3 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10.5 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.10.6 Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.11 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.12 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.13 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.14 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.14.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.14.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.14.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1 Handling and static discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2 Breather filter hole precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3 Jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.1 Master/slave configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.2 Cable-select option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.3 Alternate capacity jumper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.4 Ultra ATA/100 cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.0 ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1 ATA interface signals and connector pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1.1 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1.2 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.1.3 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.1.4 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
U Series 9 ce Product Manual, Rev. F v
vi U Series 9 ce Product Manual, Rev. F
List of Figures
Figure 1. Typical 5V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 2. Typical 12V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 3. Breather filter hole location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 4. Master/slave jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 5. Ultra ATA cable connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 6. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 7. I/O pins and supported ATA signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
U Series 9 ce Product Manual, Rev. F vii
viii U Series 9 ce Product Manual, Rev. F
1.0 Introduction
This manual describes the functional, mechanical and interface specifications for the following Seagate
U Series 9® ce model drives:
• ST3160022ACE
• ST3120025ACE
• ST380012ACE
These drives provide the following key features:
• High instantaneous (burst) data transfer rates (up to 100 Mbytes per second) using Ultra DMA mode 5.
• Giant magnetoresistive (GMR) recording heads and EPRML technology, which provide the drives with
increased areal density.
• State-of-the-art cache and on-the-fly error-correction algorithms.
• Full-track multiple-sector transfer capability without local processor intervention.
• Quiet operation.
• 350 Gs nonoperating shock.
• SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.
• The 3D Defense System™, which includes Drive Defense, Data Defense, and Diagnostic Defense, offers
the industry’s most comprehensive protection for disc drives.
• Support for S.M.A.R.T. drive monitoring and reporting.
• Support for Read Multiple and Write Multiple commands.
• Support for autodetection of master/slave drives that use cable select (CSEL).
®
U Series 9 ce Product Manual, Rev. F 1
2 U Series 9 ce Product Manual, Rev. F
2.0 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
ST3160022ACE, ST3120025ACE, and ST380012ACE model drives.
2.1 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 ST3160022ACE ST3120025ACE ST380012ACE
Formatted Gbytes (512 bytes/sector) 160 120 80
Guaranteed sectors 312,581,808 234,441,648 156,301,488
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Physical read/write heads 4 3 2
Discs 2 2 1
Recording density, BPI (bits/inch max) 595,000
Track density, TPI (tracks/inch max) 94,600
Areal density, (Mbits/inch2 max) 56.3
Sustained data transfer rate OD (Mbytes/sec) 48
I/O data-transfer rate (Mbytes/sec max) 100
ATA data-transfer modes supported PIO modes 0–4
Cache buffer 2 Mbyte (2,048 kbytes)
Height (mm max) 26.035 mm (1.028 inches)
Width (mm max) 101.6 mm (4.000 inches)
Length (mm max) 146.99 mm (5.787 inches)
Weight (typical) 635 grams (1.4 lb)
Average latency (msec) 4.16
Power-on to ready (sec typical) 10 sec
Standby to ready (sec typical) 10 sec
Startup current (typical) 12V (peak) 2.3 amps
Track-to-track seek time (msec typical) <1.0 (read), <1.2 (write)
Average seek, read (msec typical) 8.5
Average seek, write (msec typical) 9.5
Seek power (typical) 10.3 watts
Multiword DMA modes 0–2
Ultra DMA modes 0–5
U Series 9 ce Product Manual, Rev. F 3
Drive specification ST3160022ACE ST3120025ACE ST380012ACE
Read/write power (typical) 9.8 watts
Idle mode (typical) 6.7 watts
Standby mode (typical) 0.9 watts
Sleep mode (typical) 0.9 watts
Voltage tolerance (including noise)
Ambient temperature 0° to 60°C (operating)
Temperature gradient (°C per hour max) 20°C (operating)
Relative humidity 5% to 90% (operating)
Relative humidity gradient 30% per hour max
Wet bulb temperature (°C max) 33 (operating)
Altitude, operating –60.96 m to 3,048 m
Altitude, nonoperating (below mean sea level, max) –60.96 m to 12,192 m
Shock, operating (Gs max at 2 msec) 63
Shock, nonoperating (Gs max at 2 msec) 350 Gs
Vibration, operating 1.0 G (0 to peak, 5–350 Hz)
Vibration, nonoperating 5.0 Gs (0 to peak, 22–350 Hz)
Drive acoustics Sound power (bels)
5V ± 5%
12V ± 10%
–40° to 70°C (nonoperating)
30°C (nonoperating)
5% to 95% (nonoperating)
40 (nonoperating)
(–200 ft to 10,000+ ft)
(–200 ft to 40,000+ ft)
Idle* <2.5 (typical)
Quiet seek 2.8 (typical)
Nonrecoverable read errors 1 per 10
Mean time between failures (power-on hours) 600,000
Service life 5 Years
Contact start-stop cycles (25°C, 40% rel. humidity) 50,000
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and
power to operational levels.
2.7 (max)
3.0 (max)
14
bits read
4 U Series 9 ce Product Manual, Rev. F
2.2 Formatted capacity
Model
ST3160022ACE 160 Gbytes 312,581,808 512
ST3120025ACE 120 Gbytes 234,441,648 512
ST380012ACE 80 Gbytes 156,301,488 512
Formatted
capacity
Guaranteed
sectors
Bytes per sector
2.2.1 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.
See Section 4.1.2, "Identify Device command" (words 60-61 and 100-103) for additional information about 48bit addressing support of drives with capacities over 137 Gbytes.
2.3 Default logical geometry
Cylinders Read/write heads Sectors per track
16,383 16 63
2.4 Physical organization
Model Read/write heads Number of discs
ST3160022ACE 4 2
ST3120025ACE 3 2
ST380012ACE 2 1
2.5 Recording and interface technology
Interface ATA
Recording method 16/17 EPRML
Recording density BPI (bits/inch max) 595,000
Track density TPI (tracks/inch max) 94,600
Areal density (Mbits/inch2 max) 56.3
Internal data-transfer rate OD (Mbytes/sec max) 85.4
Sustained data transfer rate OD (Mbytes/sec max) 48
I/O data-transfer rate (Mbytes/sec max) 100 (Ultra DMA mode 5)
Interleave 1:1
Cache buffer 2 Mbyte (2,048 kbytes)
U Series 9 ce Product Manual, Rev. F 5
2.6 Physical characteristics
Drive specification
Maximum height
(mm)
(inches)
Maximum width
(mm)
(inches)
Maximum length
(mm)
(inches)
Typical weight
(grams)
(pounds)
26.035
1.028
101.6
4.00
146.99
5.787
635
1.4
2.7 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.
Typical seek times (msec) Read Write
Track-to-track <1.0 <1.2
Average 8.5 9.5
Average latency: 4.16 4.16
Note. These drives are designed to consistently meet the seek times represented in this manual. Physical
seeks, regardless of mode (such as track-to-track and average), are expected to meet or exceed
the noted values. However, due to the manner in which these drives are formatted, benchmark
tests that include command overhead or measure logical seeks may produce results that vary from
these specifications.
2.8 Start/stop times
Power-on to Ready (sec) 10 (max)
Standby to Ready (sec) 10 (max)
Ready to spindle stop (sec) 20 (max)
2.9 Power specifications
The drive receives DC power (+5V or +12V) through a four-pin standard drive power connector.
6 U Series 9 ce Product Manual, Rev. F
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