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ST3120023AS
User Manual
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Seagate ST3120023AS, ST360015AS, ST380023AS User Manual

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Barracuda Serial ATA V Family
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ST3120023AS
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ST380023AS
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ST360015AS
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Product Manual, Volume 1
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Barracuda Serial ATA V Family
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ST3120023AS
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ST380023AS
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ST360015AS
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Product Manual, Volume 1
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©2002, 2003 Seagate Technology LLC All rights reserved
Publication number: 100221381, Rev. B
February 2003
Seagate reser ves the right to change, w ithout notice, product offeri ngs
or specifications. No par t of this publicatio n may be reproduced in any
form without written permission of Seagate Technology LLC.
Revision status summary sheet
Revision Date Writer/PLM Sheets Affected
Rev. A 11/01/02 L. Newman/Eric Wu All. Rev. B 02/06/03 L. Newman/Eric Wu Pages 12 and 19.
Barracuda Serial ATA V Product Manual, Rev. B v
Contents
1.0 Introduction. . . . . . . . . . . . . . . .......................... 1
1.1 About the serial ATA interface. . . . . . . . . . . . . . . . . . . . . 1
1.2 Key features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
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 Deferred spinup . . . . . . . . . . . . . . . . . . . . . . . 12
2.9.3 Conducted noise . . . . . . . . . . . . . . . . . . . . . . 12
2.9.4 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . 13
2.9.5 Power-management modes. . . . . . . . . . . . . . 13
2.10 Environmental specifications . . . . . . . . . . . . . . . . . . . . . 14
2.10.1 Ambient temperature . . . . . . . . . . . . . . . . . . . 14
2.10.2 Temperature gradient. . . . . . . . . . . . . . . . . . . 15
2.10.3 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.10.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.10.5 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.10.6 Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.11 Drive acoustics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.12 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . 17
2.13 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
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 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3 Serial ATA cables and connectors. . . . . . . . . . . . . . . . . 22
3.4 Drive mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
vi Barracuda Serial ATA V Product Manual, Rev. B
4.0 SerialATA(SATA)interface...........................25
4.1 Serial ATA device plug connector pin definitions . . . . . . 26
4.2 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . 28
4.2.1 Identify Device command . . . . . . . . . . . . . . . . 30
4.2.2 Set Features command. . . . . . . . . . . . . . . . . . 35
4.2.3 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . 37
5.0 Seagate Technology support services . . . . . . . ...........39
Barracuda Serial ATA V Product Manual, Rev. B vii
List of Figures
Figure 1. Barracuda Serial ATA V disc drive. . . . . . . . . . . . . . . . . . 2
Figure 2. Typical 5V startup and operation current profile . . . . . . 11
Figure 3. Typical 12V startup and operation current profile . . . . . 11
Figure 4. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 5. SATA cabling with separate power and|
signal attachments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 6. SATA cabling with combined power and
signal attachment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 7. Mounting dimensions—top, side and end view . . . . . . . 24
Barracuda Serial ATA V Product Manual, Rev. B 1

1.0 Introduction

This manual describes the functional, mechanical and interface specifica­tions for ST3120023AS, ST 380023AS, and ST360015AS ser ial ATA inter­face drives.

1.1 About the serial ATA interface

The serial ATA interface provides several advantages over the traditional (parallel) ATA interface. The primary advantages include:
• Easy installation and configuration with true plug-and-pl ay connectivity. It is not necessary to set any jumpers or other configuration options.
• Thinner and more flexible cabling for improved enclosure airflow and ease of installation.
• Scalability to higher performance levels.
In addition, ser ial ATA makes the transition from parallel ATA easy by provid­ing legacy software support. Serial A TA was designed to allow you to install a serial ATA host adap ter and s erial ATA disc drive in your current system an d expect all of your existing applications to work as normal.
The serial ATA interface connects each disc drive in a point-to-poin t configu­ration with the serial ATA host adapter. There is no master/slave relationship with serial ATA devices like there is with parallel ATA. If two drives are attached on one serial ATA host adapter, the host operating system views the two devices as if they were both “masters” on two separate ports. This essentially means both drives behave as if they are Device 0 (master) devices.
Note. The host adapter may, optionally, emulate a master/slave environ-
ment to host software where two devices on separate serial ATA ports ar e represented to host so ftware as a Device 0 (master) and Device 1 (slave) accessed at the sa me set of host bus ad dres ses. A host adapter that emulates a master/slave environment manages two sets of shadow registers. This is not a ty pi ca l s erial ATA environ­ment.
The serial A TA host adapter and drive share the function of emulating parallel ATA device behavior to provide backward compatibility with existing host sys­tems and software. The Command and Control Block registers, PIO and DMA data transfers, resets, and interrupts are all emulated.
The serial ATA host adapt er contains a set of registe rs that sh adow the con­tents of the traditiona l device registers, referred to as the Shadow Regist er Block. All serial ATA devices behave like Device 0 devices. For additional
2 Barracuda Serial ATA V Product Manual, Rev. B
information about how ser ial ATA emulates p arallel ATA, refer to the “Ser ial ATA: High Speed Serialized AT Attachment” specification. The specification can be downloaded from http://www.serialata.com.

1.2 Key features

These drives provide the following key features:
• 7,200 RPM spindle speed and 8 M byte buffer combine for superior d esk­top performance.
• High instantaneous (burst) data-transfer rates ( up to 150 M bytes per sec­ond).
• Giant magnetoresis tive ( GMR) recording heads and EPRML tec hnology, which provide the drives with increased areal density.
• State-of-the-art cache and on-the-fly error-correction algorithms.
• Full-track multiple-sector tran sfer capability with out local processor inter­vention.
• Quiet operation.
• 350 Gs nonoperating shock.
• The innovative, shock-absorbing SeaShield
®
cover protects the drive
against electrosta tic discharge (ESD ) and other handlin g damage. It also includes installation instructions and jumper settings.
• SeaTools diagnostic software performs a drive self-test that eliminates unnecessar y drive returns.
• The 3D Defense System™, which includes Drive Defense, Data Defense and Diagnostic Defense, offers the industr y’s most comprehensi ve protec­tion for disc drives.
• Support for S.M.A.R.T. drive monitoring and reporting.
• Support for Read Multiple and Write Multiple commands.
Figure 1. Barracuda Serial ATA V disc drive
Barracuda Serial ATA V Product Manual, Rev. B 3

2.0 Drive specifications

Unless otherwise noted, all specific ations are me asured un der ambient c on­ditions, at 25°C, and nominal power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate the ST3120023AS, ST380023AS and ST360 015 AS models.

2.1 Specification summary table

The specifications listed in this table are for quick reference. For details on specification meas urement or definition, see the appr opriate section of this manual.
Table 1: Drive specifications
Drive specification ST3120023AS ST380023AS ST360015AS
Formatted Gbytes (512 bytes/sector)
Guaranteed secto rs 234,441,648 156,301,488 117,231,408 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 in BPI
(bits/inch max) Track density TPI
(tracks/inch max) Areal density
(Mbits/inch Spindle speed (RPM) 7,200 Max. Internal transf er rate
(Mbits/sec max) Sustained transfer rate
(Mbytes/sec) I/O data transfer rate
(Mbytes/sec max)
2
max)
120 80 60
542,000
78,000
42,200
570
27 to 44
150
4 Barracuda Serial ATA V Product Manual, Rev. B
Table 1: Drive specifications
Drive specification ST3120023AS ST380023AS ST360015AS
ATA data-transfer modes supported
Multiword DMA modes 0–2
Cache buffer 8 Mbytes Height (mm ma x) 26.1 Width (mm max) 101.85 Length (mm max) 147.0 Weight (typical) 635 grams (1.4 lb) Average latency (msec) 4.16 Po w e r-on to ready
(typical) Standby to ready (typical) 10 sec Startup current (typical)
12V (peak) Track-to-track seek time
(msec typical) Average seek time
( typical) Average seek, read
(typical) Average seek, write
(typical) Seek power (typical) 13.5 watts Operating power
(typical) Idle mode (typical) 9.5 watts Standby mode 1.8 watts Sleep mode 1.8 watts Voltage tolerance
(including noise) Ambient temperature 0° to 60°C (op.), –40° to 70°C (nonop.)
9.4 msec 9.0 msec
9.4 msec
10.5 msec
SATA 1.0
PIO modes 0–4
Ultra DMA modes 0–5
10 sec
2.8 amps
1.0 (read), 1.2 (write)
9.0 msec
10.0 msec
13 watts
5V ± 5%
12V ± 10%
Barracuda Serial ATA V Product Manual, Rev. B 5
Table 1: Drive specifications
Drive specification ST3120023AS ST380023AS ST360015AS
Temperature gradient (°C per hour max)
Relative humidity (op. and nonop.)
Relative humidity gradient 30% per hour max Wet bulb temperature
(°C max) Altitude, operating –198.12 m to 3,048 m
Altitude, nonoperating (meters below mean sea level, max)
Shock, operatin g (Gs max at 2 msec)
Shock, nonoperating (Gs max at 2 msec)
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 (bels) Idle* Quiet seek Performance seek
Nonrecoverable read errors
Mean time between fail­ures (power-on hours)
Service life 5 Years Contact start-stop cycles
(25°C, 40% relativ e humidity)
SeaShield Yes
2.8 (typical)
3.0 (max)
2.8 (typical)
3.0 (max)
3.3 (typical)
3.6 (max)
20°C (op.)
30°C (nonop.)
5% to 90% (op.)
5% to 95% (nonop.)
30 (op.), 40 (nonop.)
(–650 ft to 10,000
–198.12 m to 12,192 m
(–650 ft to 40,000
63
350 Gs
1 per 10
14
600,000
50,000
+ ft)
+ ft)
2.1 (typ) <2.5 (max)
2.4 (typ)
2.8 (max)
3.0 (typical)
3.4 (max)
bits read
6 Barracuda Serial ATA V Product Manual, Rev. B
*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.

2.2 Formatted capacity

Drive model Formatted Gbytes
ST3120023AS 120 234,441,648 512 ST380023AS 80 156,301,488 512 ST360015AS 60 117,231,408 512
Guaranteed sectors
Bytes per sector

2.3 Default logical geometry

Cylinders Read/write heads Sectors per track
ST3120023AS 16,383 16 63 ST380023AS 16,383 16 63 ST360015AS 16,383 16 63
LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are c on sec­utively numbered from 0 to n–1, where n is the number of guaranteed sectors as defined above.
Barracuda Serial ATA V Product Manual, Rev. B 7

2.4 Physical organization

Drive model Read/write heads Number of discs
ST3120023AS 4 2 ST380023AS 3 2 ST360015AS 2 1

2.5 Recording and interface technology

Interface Serial ATA (SATA) Recording method 16/17 EPRML Recording density BPI (bits/inch max) 542,000 Track density TPI (tracks/inch max) 78,000 Areal density (Mbits/inch Spindle speed (RPM) (± 0.2%) 7,200 Maximum 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)
Interleave 1:1 Cache buffer 8 Mbytes
2
max) 42,200
100 (Ultra DMA mode 5) 150 (SATA 1.0)

2.6 Physical characteristics

Drive specification
Maximum height(mm)
(inches)
Maximum width(mm)
(inches)
Maximum length(mm)
(inches)
Typical weight(grams)
(pounds)
26.1
1.028
101.85
4.01
147.0
5.787 635
1.40
8 Barracuda Serial ATA V Product Manual, Rev. B

2.7 Seek time

Seek measurements ar e taken w ith nom inal power at 25°C a mbient temper ­ature. All times are mea sured using drive diagnos tics. The specifications i n 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 rand om averag e of at least 5,000 measurements of seeks between random tracks, less overhead.
Table 2: Typical seek times
Typical seek times (msec) Read Write
Track-to-track 1.0 1.2 Average
1 disc 2 disc
Average latency: 4.16 4.16
9.4
9.0
10.5
10.0
Note. These dri ves are designed to c onsistently meet the seek times repre-
sented in this manual. Physical seeks, regardless of mode (such as track­to-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 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) 10 (max)

2.9 Power specifications

The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figures 5 and 6 on page 23.
Barracuda Serial ATA V Product Manual, Rev. B 9

2.9.1 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 and 12.0V input voltage at 25°C ambient tempera­ture.
• Spinup power
Spinup power is measured fro m the time of power-on to the ti me t hat th e drive spindle reaches operating speed .
• Seek mode
During seek mode, the read/wr ite actuator arm moves toward a specific position on the d isc surface and do es not execute a read or write op era­tion. Servo electronics are active. Seek mode power represents the worst­case 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 measu red with the heads on track, based on a 16­sector 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 measur ed wi th the d r ive up to sp eed , wi th s ervo elec­tronics active and with the heads in a random track location.
• Standby mode
During Standby mode, the d rive accepts comma nds, but the drive is not spinning, and the servo and read/write electronics are in power-down mode.
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