Seagate ST34321A User manual

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Medalist 8641, Medalist 6531
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Medalist 4321, Medalist 3221
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Medalist 2110
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Ultra ATA Interface Drives
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Product Manual
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .
Medalist 8641, Medalist 6531
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Medalist 4321, Medalist 3221
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Medalist 2110
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Ultra ATA Interface Drives
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Product Manual
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1998, 1999 Seagate Technology, Inc. All rights reserved
Publication Number: 20400075-001, Rev. B, January 1999
Seagate, Seagate Technology, the Seagate logo, Medalist and the
Medalist logo 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.

Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Specification summary table . . . . . . . . . . . . . . . . . . . 2
1.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Formatted capacity . . . . . . . . . . . . . . . . . . . . . 5
1.1.1 Default logical geometry . . . . . . . . . . . . . . . . 5
1.1.2 Supported CHS translation geometries . . . . . . . . 6
1.2 Physical organization . . . . . . . . . . . . . . . . . . . . 6
1.3 Recording and interface technology . . . . . . . . . . . . . 6
1.4 Physical characteristics . . . . . . . . . . . . . . . . . . . 7
1.5 Seek time . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.6 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . 8
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 . . . . . . . . . . . . . . 11
1.8 Environmental tolerances . . . . . . . . . . . . . . . . . . 12
1.8.1 Ambient temperature . . . . . . . . . . . . . . . . . . 12
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 . . . . . . . . . . . . . . . . . . . . . . . 14
1.10 Electromagnetic susceptibility . . . . . . . . . . . . . . . 14
1.11 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.12 Agency certification . . . . . . . . . . . . . . . . . . . . 15
1.12.1 Safety certification . . . . . . . . . . . . . . . . . . 15
Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B iii

1.12.2 Electromagnetic Compatibility . . . . . . . . . . . . 15
1.12.3 FCC verification . . . . . . . . . . . . . . . . . . . . 15
2.0 Drive mounting and configuration . . . . . . . . . . . . . . 17
2.1 Handling and static-discharge precautions . . . . . . . . . 17
2.2 Jumper settings . . . . . . . . . . . . . . . . . . . . . . . 17
2.2.1 Master/slave configuration . . . . . . . . . . . . . . . 17
2.2.2 Alternate capacity jumper . . . . . . . . . . . . . . . 17
2.3 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . 18
3.0 ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1 ATA interface signals and connector pins . . . . . . . . . . 21
3.2 ATA Interface commands . . . . . . . . . . . . . . . . . . 23
3.2.1 Supported ATA commands . . . . . . . . . . . . . . . 23
3.2.2 Identify Drive command . . . . . . . . . . . . . . . . 25
3.2.3 Set Features command . . . . . . . . . . . . . . . . 29
3.2.4 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . 30
iv Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B

Figures
Figure 1. Typical startup and operation current profile . . . . . . . 10
Figure 2. Alternate capacity jumper and master/slave jumpers . . 18
Figure 3. Drive mounting dimensions—top, side and end view . . . 19
Figure 4. I/O pins and supported ATA signals . . . . . . . . . . . 22
Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B v

vi Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B

Introduction
This manual describes the functional, mechanical and interface specifi-
cations for the Medalist8641 (ST38641A), Medalist 6531 (ST36531A),
Medalist 4321 (ST34321A), Medalist 3221 (ST33221A) and Medalist
2110 (ST32110A). These drives are referred to throughout this manual
by their model numbers. These drives provide the following key features:
•Low power consumption
•Quiet operation
•Support for S.M.A.R.T. drive monitoring and reporting
•High instantaneous (burst) data-transfer rates (up to 33.3 Mbytes per
second) using Ultra DMA mode 2
•Full-track multiple-sector transfer capability without local processor
intervention
•128-Kbyte cache
•State-of-the-art caching and on-the-fly error-correction algorithms
•Support for Read Multiple and Write Multiple commands
•Support for autodetection of master/slave drives that use cable select
(CSEL)
•MR recording heads and PRML technology, which provides thedrives
with increased areal density
Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B 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 ST38641A ST36531A ST34321A ST33221A ST32110A
Guaranteed Mbytes
(×106bytes) 8,606 6,505 4,303 3,227 2,111
Guaranteed sectors 16,809,660 12,706,470 8,404,830 6,303,024 4,124,736
Bytes per sector 512
Default sectors per
track 63
Default read/write
heads 16 15 15 16 16
Default cylinders 16,383 13,446 8,894 6,253 4,092
Physical read/write
heads 8 6 4 4 2
Discs 4 3 2 2 1
Recording density
(bits/inch max) 153,870
Track density
(tracks/inch) 9,190
Areal density
(Mbits/inch2 max) 1,581
Spindle speed (RPM) 5,400
Internal data-transfer
rate (Mbits/sec max) 140
I/O data-transfer rate
(Mbytes/sec max) 33.3
ATA data-transfer
modes supported PIO modes 0, 1, 2, 3, 4; Multiword DMA modes 0, 1, 2;
Ultra DMA modes 0, 1, 2
Cache buffer
(Kbytes) 128
Height (mm max) 26.10
Width (mm max) 101.85
Length (mm max) 147.0
2 Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B

Drive
Specification ST38641A ST36531A ST34321A ST33221A ST32110A
Weight
(grams typical) 544
Track-to-track seek
time (msec typical) 1.3 (read), 1.7 (write)
Average seek time
(msec typical) 11.0 (read), 11.5 (write)
Full-stroke seek time
(msec typical) 19.8 (read), 20.2 (write)
Average latency
(msec) 5.6
Power-on to ready
(sec typical) 10
Standby to ready
(sec typical) 10
Startup current:
12V (peak)
5V (RMS) 1.8 amps 0.6 amps
Seek power
and current (mean) 9.1 watts
Read/Write power
and current (typical) 5.5 watts
Idle mode power
and current (typical) 4.9 watts
Standby mode
power and current
(typical) 0.9 watts
Sleep mode power
and current (typical) 0.9 watts
Voltage tolerance
(including noise) 5V ± 5%
12V ±8%
Ambient
temperature 5° to 55°C (op.), –40° to 70°C (nonop.)
Temperature
gradient (per hour
max) 20°C
Relative humidity
(op. and nonop.) 8% to 90% (op.) 5% to 95% (nonop.)
continued
Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B 3

Drive
Specification ST38641A ST36531A ST34321A ST33221A ST32110A
Relative humidity
gradient 10% per hour max
Wet bulb tempera-
ture (max) 29.4°C (op.), 29.4°C (nonop.)
Altitude (meters
below mean sea
level, max) –122 to 3,048 (op.) –122 to 12,192 (nonop.)
Shock, operating
(Gs max at 11 msec) 15
Shock, nonoperating
(Gs max at 11 msec)
(Gs max at 2 msec) 75 200
Vibration, operating 0.50 G (0 to peak, 22–350 Hz)
Vibration,
nonoperating 5.0 Gs (0 to peak, 22–350 Hz)
Drive acoustics
(bels—sound power)
Idle mode
(dBA—sound pres-
sure)
3.5 (typical), 3.9 (max)
30 (typical)
Drive acoustics
(bels—sound power)
Read/Write mode
(dBA—sound pres-
sure)
4.0 (typical), 4.3 (max)
32 (typical)
Nonrecoverable
read errors 1 per 1014 bits read
Mean time between
failures
(power-on hours) 400,000
Contact start-stop
cycles
(25°C, 40% relative
humidity)
40,000
Service life (years) 5
continued from previous page
4 Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B

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
ST38641A, ST36531A, ST34321A, ST33221A and the ST32110A.
1.1 Formatted capacity
Drive
Model Guaranteed Mbytes (1 Mbyte = 106 bytes) Guaranteed
sectors Bytes per sector
ST38641A 8,606 16,809,660 512
ST36531A 6,505 12,706,470 512
ST34321A 4,303 8,404,830 512
ST33221A 3,227 6,303,024 512
ST32110A 2,111 4,124,736 512
Note. DOS systems cannot access more than 528 Mbytes on a drive
unless 1) the host system supports and is configured for LBA ad-
dressing or for extended CHS addressing, 2) the host system
contains a specialized drive controller, or 3) the host system runs
BIOS translation software. Contact your Seagate®repre-
sentative for details.
1.1.1 Default logical geometry
CHS Mode Cylinders Read/Write heads Sectors per track
ST38641A 16,383 16 63
ST36531A 13,446 15 63
ST34321A 8,894 15 63
ST33221A 6,253 16 63
ST32110A 4,092 16 63
LBA Mode
When addressing either drive 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.
Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B 5

1.1.2 Supported CHS translation geometries
These drives support any translation geometry that satisfies
all
of the
following conditions:
•Sectors per track ≤63
•Cylinders ≤16,383 (for drives over 8.4 Gbytes)
•Heads ≤16
The ST38641A logical cylinders are:
Logical cylinders=16,809,660 / (logical sectors per track× logical heads)
The ST36531A logical cylinders are:
Logical cylinders=12,706,470 / (logical sectors per track× logical heads)
The ST34321A logical cylinders are:
Logical cylinders=8,404,830 / (logical sectors per track× logical heads)
The ST33221A logical cylinders are:
Logical cylinders=6,303,024 / (logical sectors per track × logical heads)
The ST32110A logical cylinders are:
Logical cylinders=4,124,736 / (logical sectors per track× logical heads)
1.2 Physical organization
Drive Model Read/Write heads (MR) Number of discs
ST38641A 8 4
ST36531A 6 3
ST34321A 4 2
ST33221A 4 2
ST32110A 2 1
1.3 Recording and interface technology
Interface ATA
Recording method 16/17 (0,14) ZBR
Recording density (bits/inch) 153,870
Track density (tracks/inch) 9,190
Areal density (Mbits/inch2) 1,581
6 Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B

Spindle speed RPM ( ±0.2%) 5,400
Internal data-transfer rate
(Mbits per second max) 140
I/O data-transfer rate
(Mbytes per second max) 16.6 (PIO mode 4 with IORDY) 16.6 (multiword DMA mode 2)
33.3 (Ultra DMA mode 2)
Interleave 1:1
Cache buffer (Kbytes) 128
1.4 Physical characteristics
Drive Specification ST38641A
ST36531A ST34321A ST33221A ST32110A
Maximum height (mm)
(inches) 26.10 1.028
Maximum width (mm)
(inches) 101.85 4.010
Maximum length (mm)
(inches) 147.00 5.787
Typical weight (grams)
(pounds) 544 1.2
1.5 Seek time
All seek times are measured using a 486 AT computer (or faster) with an
8.3 MHz I/O bus. The measurements are taken with nominal power at
25°C ambient temperature. All times are measured using drive diagnos-
tics. The specifications in the table on page 8 are defined as follows:
•Track-to-track seek time is an average of all possible single-track
seeks in both directions.
•Averageseektimeisatruestatisticalrandomaverageofatleast5,000
measurements of seeks between random tracks, less overhead.
•Full-stroke seek time is one-half the time needed to seek from thefirst
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.
Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B 7

Seek type Read (msec, typ.) Write (msec, typ.)
Track-to-track 1.3 1.7
Average 11.0 11.5
Full-stroke 19.8 20.2
Average latency: 5.6 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 ex-
ceed the noted values. Due to the manner in which these drives
are formatted, however, 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) 10 (typical)
Standby to Ready (sec) 10 (typical)
Ready to spindle stop (sec) 12 (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 is measured from the time of power-on to the time that the
drive spindle reaches operating speed.
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 power consumption, using only random seeks with read
or write latency time. This mode is not typical and is provided for worst-
case information.
8 Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B

Read/Write power and current are measured with the heads on track,
basedon a16-sectorwritefollowedby a32-msecdelay,thena16-sector
read followed by a 32-msec delay.
Operating power and current are 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 is measured with the drive up to speed, with servo
electronics active, and with the heads in a random track location.
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.
Mode Typical Watts RMS Typical Amps RMS
5V 12V
Spinup 0.6 1.8 (Peak)
Seeking 9.1
(Random,
no read/write)
0.5 0.55
Read/Write 5.5 0.5 0.25
Operating 5.5 0.5 0.25
Idle 4.9 0.38 0.25
Standby 0.9 0.18 —
Sleep 0.9 0.18 —
Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B 9

1.7.1.1 Typical current profile
Figure 1 shows a typical current profile
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 ± 8%
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0123456789
Current (Amps)
Time (seconds)
Figure 1. Typical startup and operation current profile
10 Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B

1.7.4 Power-management modes
These drives provide programmable power management to provide
greater energy efficiency. In most systems, you can control power
management through the system setup program. These Seagate drives
feature several power-management modes, which are summarized in
the following table and described in more detail below:
Mode 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 timedisc accessis 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 estab-
lished using a Standby or Idle command. In Standby mode, 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. 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.
Standby timers. Each time the drive performs an Active function (read,
write or seek), the standby timer is reinitialized and begins counting down
fromitsspecifieddelaytimestozero. Ifthestandbytimerreacheszerobefore
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.
Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B 11

1.8 Environmental tolerances
1.8.1 Ambient temperature
Operating 5° to 55°C (41° to 131°F)
Nonoperating –40° to 70°C (–40° to 158°F)
Note. Above 1,000 feet (305 meters), the maximum temperature is der-
ated linearly to 112°F (44°C) at 10,000 feet (3,048 meters). Operat-
ing ambient temperature is defined as the temperature of the
environment immediately surrounding the drive.
1.8.2 Temperature gradient
Operating 20°C/hr (68°F/hr) max, without condensation
Nonoperating 20°C/hr (68°F/hr) max, without condensation
1.8.3 Humidity
1.8.3.1 Relative Humidity
Operating 8% to 90% noncondensing (10% per hour max)
Nonoperating 5% to 95% noncondensing (10% per hour max)
1.8.3.2 Wet bulb temperature
Operating 29.4°C (84°F) max
Nonoperating 29.4°C (84°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.
12 Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B