Seagate ST3120020A User manual

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U7 Family
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ST3120020A, ST380022A,
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ST360012A, ST340012A,
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ST330012A
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Ultra ATA Interface Drives
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Product Manual
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U7 Family
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ST3120020A, ST380022A,
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ST360012A, ST340012A,
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ST330012A
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Ultra ATA Interface Drives
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Product Manual
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©2002, 2003 Seagate Technology LLC All rights reserved
Publication number: 100240404, Rev. D
January 2003
Seagate, Seagate Technology, and the Seagate logo are either registered
trademarks or trademarks of Seagate Technology LLC. U7, DiscWizard,
SeaFAX, SeaFONE, SeaShell, SeaShield, SeaTDD, and 3D Defense
System are either registered trademarks or trademarks of Seagate Tech-
nology LLC. Other product names are registered trademarks or trade-
marks 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 ofSeagate Technology LLC.

Revision status summary sheet
Revision Date Writer/PLM Sheets Affected
Rev. A 09/20/02 L. Newman/J. Singh All.
Rev. B 10/15/02 L. Newman/J. Singh Pages 5, 8, 10, 27,
and 33.
Rev. C 12/18/02 L. Newman Pages 4, 5, 7, 17,
and 18.
Rev. D 01/24/03 L. Newman Page 29.

U7 Product Manual, Rev. D v
Contents
1.0 Introduction. . . . . . . . . . . . . . . ...........................1
2.0 Drivespecifications...................................3
2.1 Specification summary table . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Physical organization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.5 Recording and interface technology . . . . . . . . . . . . . . . . . 7
2.6 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.7 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.8 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.9 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.9.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . 9
2.9.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . 12
2.9.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . 12
2.9.4 Power-management modes. . . . . . . . . . . . . . . 12
2.10 Environmental specifications . . . . . . . . . . . . . . . . . . . . . . 13
2.10.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . 13
2.10.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . 14
2.10.3 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.10.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.10.5 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.10.6 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.11 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.12 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . 17
2.13 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.14 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.14.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . 18
2.14.2 Electromagnetic compatibility. . . . . . . . . . . . . . 18
2.14.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . 19
3.0 Configuring and mounting the drive. . . . . . . . .............21
3.1 Handling and static discharge precautions . . . . . . . . . . . 21
3.2 Jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.2.1 Master/slave configuration . . . . . . . . . . . . . . . . 22
3.2.2 Cable-select option. . . . . . . . . . . . . . . . . . . . . . 22
3.2.3 Alternate capacity jumper. . . . . . . . . . . . . . . . . 23
3.2.4 Ultra ATA/100 cable. . . . . . . . . . . . . . . . . . . . . 23
3.3 Drive mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

vi U7 Product Manual, Rev. D
4.0 ATAinterface........................................25
4.1 ATA interface signals and connector pins . . . . . . . . . . . .25
4.1.1 Supported ATA commands. . . . . . . . . . . . . . . .27
4.1.2 Identify Device command . . . . . . . . . . . . . . . . .28
4.1.3 Set Features command. . . . . . . . . . . . . . . . . . .33
4.1.4 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . .34
5.0 Seagate Technology support services . . . . . . . ............35

U7 Product Manual, Rev. D vii
List of Figures
Figure 1. Typical 5V startup and operation current profile . . . . . . . . . 11
Figure 2. Typical 12V startup and operation current profile . . . . . . . . 11
Figure 3. Master/slave jumper settings . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 4. Ultra ATA cable connectors . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 5. Mounting dimensions—top, side and end view. . . . . . . . . . 24
Figure 6. I/O pins and supported ATA signals . . . . . . . . . . . . . . . . . . 26

viii U7 Product Manual, Rev. D

U7 Product Manual, Rev. D 1
1.0 Introduction
This manual describes the functional, mechanical and interface specifications
for Seagate®U7 ST3120020A, ST380022A, ST360012A, ST340012A, and
ST330012A model drives. These drives provide the following key features:
• 5,400-RPM performance class speed and 2-Mbyte buffer combine for supe-
rior desktop performance.
• Highinstantaneous(burst)datatransfer rates(upto100Mbytesper 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-trackmultiple-sectortransfercapabilitywithoutlocal processorinterven-
tion.
• Quiet operation.
• 350 Gs nonoperating shock.
• Theinnovative,shock-absorbingSeaShield®coverprotectsthedriveagainst
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.
• The 3D Defense System™, which includes Drive Defense, Data Defense,
and Diagnostic Defense, offers the industry’s most comprehensive protec-
tion 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).

2 U7 Product Manual, Rev. D

U7 Product Manual, Rev. D 3
2.0 Drive specifications
Unless otherwise noted, all specifications are measured under ambient con-
ditions, at 25°C, and nominal power. For convenience, the phrases the drive
and this drive are used throughout this manual to indicate ST3120020A,
ST380022A, ST360012A, ST340012A and ST330012A 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 ST3120020A ST380022A ST360012A ST340012A ST330012A
Formatted Gbytes
(512 bytes/sector) 120 80 60 40 30
Guaranteed
sectors 234,441,648 156,301,488 117,231,408 78,165,360 58,633,344
Bytes per sector 512
Default sectors per
track 63
Default read/write
heads 16
Default cylinders 16,383
Physical read/write
heads 4 3221
Discs 2 2 1 1 1
Recording density
BPI (bits/inch max) 542,000
Track density TPI
(tracks/inch max) 78,000
Areal density
(Mbits/inch2 max) 42,200
Performance level 5,400 RPM Class
Max. Internal
transfer rate
(Mbits/sec)
570
Sustained transfer
rate (Mbytes/sec) 27 to 44
I/O data transfer
rate (Mbytes/sec
max)
100

4 U7 Product Manual, Rev. D
ATA data-transfer
modes supported PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–5
Cache buffer 1 Mbyte (1,024 kbytes)
Height (mm max) 26.1
Width (mm max) 101.85
Length (mm max) 147.0
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) 2.8 amps
Track-to-track seek
time (msec typical) 1.0 (read), 1.2 (write)
Average seek time
(msec typical) 9.4 9.0
Average seek,
read
(msec typical)
9.4 9.0
Average seek,
write
(msec typical)
10.5 10.0
Seek power
typical) 13 watts
Read/write power
(typical) 12 watts
Idle mode (typical) 9.5 watts
Standby mode 0.7 watts (typical), 0.75 watts (max)
Sleep mode 0.7 watts (typical), 0.75 watts (max)
Voltage tolerance
(including noise) 5V ± 5%
12V ± 10%
Drive
specification ST3120020A ST380022A ST360012A ST340012A ST330012A

U7 Product Manual, Rev. D 5
*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.
Ambient
temperature 0° to 60°C (operating)
–40° to 70°C (nonoperating)
Temperature
gradient
(°C per hour max)
20°C (operating)
30°C (nonoperating)
Relative humidity 5% to 90% (operating)
5% to 95% (nonoperating)
Relative humidity
gradient 30% per hour max
Wet bulb tempera-
ture (°C max) 30 (operating)
40 (nonoperating)
Altitude,
operating –198.12 m to 3,048 m
(–650 ft to 10,000+ ft)
Altitude,
nonoperating
(below mean sea
level, max)
–198.12 m to 12,192 m
(–650 ft to 40,000+ ft)
Shock, operating
(Gs max at 2 msec) 63
Shock,
nonoperating
(Gs max at 2 msec)
350 Gs
Vibration,
operating 0.50 Gs (0 to peak, 22–350 Hz)
Vibration,
nonoperating 5.0 Gs (0 to peak, 22–350 Hz)
Drive acoustics
Sound power (bels) (two discs) (one disc)
Idle*
Quiet seek
Performance seek
2.8 (typical), 3.0 (max)
2.8 (typical), 3.0 (max)
3.3 (typical), 3.6 (max)
2.1 (typical), <2.5 (max)
2.4 (typical), 2.8 (max)
3.0 (typical), 3.4 (max)
Nonrecoverable
read errors 1 per 1014 bits read
Mean time
between failures
(power-on hours)
600,000
Contact start-stop
cycles (25°C, 40%
relative humidity)
50,000
Service Life 5 Years
SeaShield Yes
Drive
specification ST3120020A ST380022A ST360012A ST340012A ST330012A

6 U7 Product Manual, Rev. D
2.2 Formatted capacity
2.3 Default logical geometry
LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consec-
utively numbered from 0 to n–1, where nis the number of guaranteed sectors
as defined above.
2.4 Physical organization
Model Formatted
capacity Guaranteed sectors Bytes per sector
ST3120020A 120 Gbytes 234,441,648 512
ST380022A 80 Gbytes 156,301,488 512
ST360012A 60 Gbytes 117,231,408 512
ST340012A 40 Gbytes 78,165,360 512
ST330012A 30 Gbytes 58,633,344 512
Cylinders Read/write heads Sectors per track
16,383 16 63
Model Read/write heads Number of discs
ST3120020A 4 2
ST380022A 3 2
ST360012A 2 1
ST340012A 2 1
ST330012A 1 1

U7 Product Manual, Rev. D 7
2.5 Recording and interface technology
2.6 Physical characteristics
Interface ATA
Recording method 16/17 EPRML
Recording density BPI (bits/inch max) 542,000
Track density TPI (tracks/inch max) 78,000
Areal density (Mbits/inch2max) 42,200
Performance level 5,400 RPM class
Max. Internal transfer rate (Mbits/sec) 570
Sustained transfer rate
(Mbytes/sec) 27 to 44
I/O data transfer rate
(Mbytes/sec max) 16.6 (PIO mode 4) 100 (Ultra DMA mode 5)
Interleave 1:1
Cache buffer 1 Mbyte (1,024 kbytes)
Drive specification ST3120020A ST380022A
ST360012A
ST340012A
ST330012A
Maximum height (mm)
(inches) 26.1 1.028 26.1 1.028
Maximum width (mm)
(inches) 101.85 4.01 101.85 4.01
Maximum length (mm)
(inches) 147.0 5.787 147.0 5.787
Typical weight (grams)
(pounds) 635 1.40 635 1.40

8 U7 Product Manual, Rev. D
2.7 Seek time
Seek measurements are taken with nominal power at 25°C ambient temper-
ature. 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.
Note. These drives are designed to consistently meet theseek times represented
in this manual. Physical seeks, regardless of mode (such as track-to-track
and average), are expected to meet the noted values. However, due to the
manner in which these drives are formatted, benchmark tests that include
commandoverheadormeasurelogicalseeksmayproduceresultsthatvary
from these specifications.
2.8 Start/stop times
2.9 Power specifications
The drive receives DC power (+5V or +12V) through a four-pin standard drive
power connector.
Typical seek times (msec) Read Write
Track-to-track 1.0 1.2
Average
2 discs
1 disc 9.4 9.0 10.5 10.0
Average latency: 4.16 4.16
Power-on to Ready (sec) 10 (max)
Standby to Ready (sec) 10 (max)
Ready to spindle stop (sec) 10 (max)

U7 Product Manual, Rev. D 9
2.9.1 Power consumption
Power requirements for the drives are listed in the table on page 10. Typical
powermeasurementsarebasedonanaverageofdrivestested,undernominal
conditions, using 5.0V and 12.0V 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 represents the worst-case
powerconsumption,usingonlyrandomseekswithreadorwritelatencytime.
This mode is not typical and is provided for worst-case information.
• Read/write power and current
Read/writepowerismeasuredwiththeheadsontrack,basedona16-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 idle mode.
• 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.

10 U7 Product Manual, Rev. D
*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.
Power dissipation
(watts, ST3120020A, 2-disc) Average (watts, 25° C) 5V typ amps 12V typ amps
Spinup — — 2.8 (peak)
Idle 7.5 0.525 0.407
Idle* (with offline activity) 9.5 0.844 0.439
Operating 40% r/w.
40% seek, 20% inop. 12 0.634 0.74
Seeking 13 0.511 0.871
Standby 0.7 0.116 0.01
Sleep 0.7 0.116 0.01