Seagate ST33240A User manual

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Medalist 3240

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Medalist 2531

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ATA Interface Drives

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Product Manual

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Medalist 3240 (ST33240A)

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Medalist 2531 (ST32531A)

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ATA Interface Drives

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Product Manual

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1997 Seagate Technology, Inc. All rights reserved
Publication Number: 20401033-001, Rev. A, May 1997
Seagate, Seagate Technology, the Seagate logo, Medalist and the

Medalist logo are either trademarks or registered trademarks of Seagate
Technology, Inc. Ot her product names ar e registered trademarks or
trademarks of their owners.

Seagate reserves the right t o change, without notice, produc t offerings
or specifications. No part of this publication may be reproduced in any
form without written permission from Seagate Technology, Inc.

Medalist 3240 and Medalist 2531 Product Manual, Rev. A iii

Contents

Introdu c tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 . . . . . . . . 5

1.2 Physical organization . . . . . . . . . . . . . . . . . . . . 6

1.3 Recording and interface technology . . . . . . . . . . . . . 6

1.4 Physical characteristics . . . . . . . . . . . . . . . . . . . 6

1.5 Seek time . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.6 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . 7

1.7 Power specifications . . . . . . . . . . . . . . . . . . . . . 8

1.7.1 Power consumption . . . . . . . . . . . . . . . . . . 8

1.7.2 Conducted noise . . . . . . . . . . . . . . . . . . . . 9

1.7.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . 9

1.7.4 Power-management modes . . . . . . . . . . . . . . 10

1.8 Environ mental tolerances . . . . . . . . . . . . . . . . . . 11

1.8.1 Ambient temperature . . . . . . . . . . . . . . . . . . 11

1.8.2 Temperature gradient . . . . . . . . . . . . . . . . . 11

1.8.3 Humidity . . . . . . . . . . . . . . . . . . . . . . . . 11

1.8.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.8.5 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.8.6 Vibration . . . . . . . . . . . . . . . . . . . . . . . . 12

1.9 Drive acoustics . . . . . . . . . . . . . . . . . . . . . . . 13

1.10 Electromagnetic susceptibility . . . . . . . . . . . . . . . 13

1.11 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.12 Agency certification . . . . . . . . . . . . . . . . . . . . 14

1.12.1 Safety certification . . . . . . . . . . . . . . . . . . 14

iv Medalist 3240 and Medalist 2531 Product Manual, Rev. A

1.12.2 Electromagnetic Compatibility . . . . . . . . . . . . 14

1.12.3 FCC verification . . . . . . . . . . . . . . . . . . . . 14

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

3.1.1 AT bus signal levels . . . . . . . . . . . . . . . . . . 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 comman d . . . . . . . . . . . . . . . . 28

3.2.4 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . 29

Medalist 3240 and Medalist 2531 Product Manual, Rev. A v

Figures

Figure 1. Typical startup and operation current profile . . . . . . . 9

Figure 2. Master/slave jumpers and alternate capacity jumper . . 18
Figure 3. Drive mounting dimensions—top, end and side view . . . 19

Figure 4. I/O pins and supported ATA signals . . . . . . . . . . . 22

vi Medalist 3240 and Medalist 2531 Product Manual, Rev. A

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 1

Introduction

®

The Medalist
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 16.6 Mbytes per

second) using PIO mode 4 and DMA mode 2

• Full-track multisector transfer capability without local processor inter­vention

• 128-Kbyte adaptive multisegmented cache

• S tat e- of-the-ar t cachi ng and on-the-fly error-correction algorithms

• Support for Read/Write Multiple commands

• S upport for autodetection of master/slave drives using cable select

(CSEL)

3240 (ST33240A) and Medalist 2531 (ST32531A) provide

2 Medalist 3240 and Medalist 2531 Product Manual, Rev. A

Specification summary table

The specifications listed in this table are for quick reference. For details
on specification measurement or definit ion, see the appropriate section
of this manual.

Dr ive Specificatio n ST33240A ST32531A

Guaranteed Mby te s (×106 bytes)
Guaranteed sectors 6,303,024 4,995,648
Bytes per sector 512 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 6,253 4,956
Physical read/wr ite he ads 8 6
Discs 4 3
Recording densit y (bit s/ i nch m ax) 108,770
Track density (tracks/inch) 5,104
Areal density (Mbit s/ in ch
Spindle speed (RPM) 4,500
Internal data-transfer rate (Mbits/sec max) 88
I/O data-transf er ra te (M byt es /s ec m ax) 16.6
A TA data-tr ansf er mo des supported PIO modes 0, 1, 3, 4;

Cache buffer (Kbytes) 128
Height (mm max) 26.2
Width (mm max) 102.1
Length (mm max) 146.9
Weig ht (gra ms typical) 567.5
Track-to- tr ack seek t i me (msec t ypical) 2 (seek), 2.5 (read), 3.5 (writ e)
Average seek time (msec typical) 12 (seek), 12.5 (read), 14.5 (write)
Full-stroke seek time (msec typical) 23.5 (seek), 24 (read), 25 (write)
Average latency (msec) 6.67
Power-on to ready (sec typical) 9
Standby to ready (sec typical) 9

2

)553

3,227 2,557

Multiword DMA modes 0, 1, 2

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 3

Dr ive Specificatio n ST33240A ST32531A

Startup current: 12V (peak)

5V (RMS)

1.6 amps

0.5 amps
Seek power (mean) 4.3 watts
Operating power (typi ca l) 4.6 watts
Idle mode power (typical) 4.5 watts
Standby mode power (typical) 1.0 watts
Sleep mode power (ty pical) 0.7 watts
Voltage tolerance (including noise)

±

5%
Ambient temperature (°C) 5 to 55 (op.), –40 to 60 (nonop.)
Temperature gradient (°C per hour max) 20
Relative humidity (op. and nonop.) 8% to 80%
Relative humidity grad ie nt 10% per hour max
Wet bulb temper at ur e (°C max) 29 (op.and nonop.)
Altitude (meters ab ove m ean sea level, max) –61 to 3,048 (op. )

–61 to 12,192 (nonop.)
Shock, operating (G s ma x at 11 msec) 5
Shock, nonoperati ng (Gs max at 11 ms ec) 75
Vibration, oper ati ng 0.020 in. (peak to peak, 5–22 Hz)

0.50 G (0 to peak, 22–350 Hz)

Vibration, nono per at in g 0.081 in. (peak to peak, 5–22 Hz)

5 Gs (0 to peak, 22–350 Hz)

Drive acoustics (bel s— sound power)
Idle mode

Drive acoustics (bel s— sound power)
Read/Writ e mo de

Nonrecoverable rea d error s 1 per 10

3.7 (typical)

4.1 (max)

4.3 (typical)

4.5 (max)

14

bits read
Mean time between failures (power-on hours) 300,000
Contact start-st op cy cl es

40,000

(40°C, ambient humidi t y)
Service life (years) 5

4 Medalist 3240 and Medalist 2531 Product Manual, Rev. A

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 5

1.0 Drive specifications

Unless otherwise noted, all specific ations are measured under ambient
conditions, at 25°C, and nominal power. For convenience the phr ases

the drive

the ST33240A and the ST32531A.

and

this drive

1.1 Formatted capacity

are used throughout this manual to indicate both

ST33240A S T32531A

Guaranteed Mbytes
(1 Mbyte = 10

Guaranteed sectors 6,303,024 4,995,648
Bytes per sector 512 512

DOS systems cannot access more than 528 Mbytes on a drive

Note.

unless 1) the host system supports and is configured for LBA ad­dressing or for extended CHS addr essing, 2) the host system
contains a specialized drive controller, or 3) the host system runs
BIOS translation software. Contact your Seagate
for details.

6

bytes)

3,227 2,557

®

representative

1.1.1 Default logical geometry

CHS Mode ST33240A ST32531A

Sectors per trac k 63 63
Read/Write heads 16 16
Cylinders 6,253 4,956

LBA Mode

When addressing either drive in LBA mode, all blocks (sectors) are
consecutively numbered from 0 to

n

–1.

1.1.2 Supported CHS translation geometries

The ST33240A supports any translation geometry that satisfies
following conditions:

• Sectors per track ≤ 63

• Read/Write heads ≤ 16

• (Sectors per track) ×

(Read/Write heads)

(cylinders)

×

≤6,303,024

all

of the

6 Medalist 3240 and Medalist 2531 Product Manual, Rev. A

The ST32531A supports any translation geometry that satisfies the
sectors and head limitations above, and

• (Sectors per track) ×

(Read/Write heads)

(cylinders)

×

1.2 Physical organization

ST33240A ST32531A

Read/Write heads 8 6
Discs 4 3

1.3 Recordin g and inte rf ace tec hn ology

Interface ATA
Recording method 2/3 (1,7) RLL
Recording density (bits/inch) 108,770
Track density (tracks/inch) 5,104

2

Areal density (Mbits/inch
Spindle speed (RPM)

( ± 0.5%)
Internal data-transfer rate

(Mbits per second max)
I/O data-transfer rate

(Mbytes per second max)

) 553.82

4,500

88

16.6 (PIO mode 4 with IORDY)

16.6 (multiword DMA mode 2)

≤4,995,648

Interleave 1:1
Cache buffer (Kbytes) 128

1.4 Physical characteristics

Maximum height (mm)

(inches)

Maximum width (mm)

(inches)

Maximum length (mm)

(inches)

Typical weight (grams)

(pounds)

26.2

1.03

102.1

4.02

146.9

5.78

567.5

1.25

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 7

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
sea level and 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.

• 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.

Seek

Seek type

Track-to-track 2.0 2.5 3.5
Average 12.0 12.5 14.5
Full-stroke 23.5 24.0 25.0
Average latency: 6.67 msec

Note.

This drive is 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. Due to the m anner in which t his drive is f or­matted, however, benchmark tests that include c ommand over­head or measure logical seeks may produce results that vary
from these specifications.

(msec, typ.)

Read
(msec, typ.)

Write
(msec, typ.)

1.6 Start/stop times

Power-on to Ready (sec) 9 (typical)
Standby to Ready (sec) 9 (typical)
Ready to Complete Stop (sec) 9 (typical)

8 Medalist 3240 and Medalist 2531 Product Manual, Rev. A

1.7 Power specif icat io ns

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 drive are listed in the table below. Typical power
measurement s are based o n an average of dri ves tested unde r nominal
conditions, using 5.0V and 12.0V input voltages at room temperature.

Spinup current 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 ar m moves toward a s peci fic
position on the dis c s ur face before executing a read or write operation.
Servo electronics are active. Seek mode power is measured through the
drive’s serial port while the drive executes a series of sequential seeks.

Operating power and current are measured using 40% random seeks,
40% read/write mode (1 write for each 10 reads), and 20% drive inactive.

Idle mode power is measured with the drive up to speed, servo electron­ics are active, and the heads are left 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 0.5 1.6 (Peak)
Active

Seeking 4.3 0.425 0.180

Operating

Read/Write 4.6 0.440 0.200
Idle 4.5 0.440 0.190
Standby 1.0 0.20 —
Sleep 0.7 0.140 —

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 9

1.7. 1.1 Typical current profile

Current (mA)

1,400
1,200
1,000

800
600
400
200

2

0

Figure 1. Typical startup and operation current profi le

Figure 1 shows a typic al current profile for the Medalist 3240 and the
Medalist 2531.

6

4

810

Time (seconds)

12

14 16

18

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 triangular-wave injected nois e at up to 25
MHz.

• Using 5-volt power the dri ve is ex pected to operate with a maximum
of 100 mV peak-to-peak triangular-wave injected nois e at up to 25
MHz.

. Equivalent resistance is calculated by dividing the nominal volt-

Note

age by the typical RMS read/write current.

1.7.3 Voltage to lerance

Voltage tolerance (including noise): ± 5%

10 Medalist 3240 and Medalist 2531 Product Manual, Rev. A

1.7.4 Power-management modes

This drive provides programmable power management to provide
greater energy efficiency. In most systems, you can control power
management through the system setup program. This Seagate drive
features several power-management modes, which are sum marized in
the following table and described in more detail below:

Mode Heads Spindle Buffer

Active Moving Rotating Enabled
Idle Move every 3 minutes Rotating Enabled
Standby Parked Stopped Enabled
Sleep P ar ked Stopped Disabled

Active mode.

operations.

Idle mode.

after 5 seconds of inactivit y. You can s et the idle timer delay using the
system setup utility. In Idle mode, the spindle remains up to s peed. Every
3 minutes, the drive performs a random seek. The buffer remains
enabled, and the drive accepts all comm and s a n d ret ur ns to A cti ve m od e
any time disc access is necessary.

Standby mode.

Standby I mmediate comman d. If the host has set the standby t imer, the
drive c an also ent er S tandby mod e automatically after the driv e has been
inactive for a specifiable length of time. The standby timer delay is system­dependent and is usually established using the system setup utility. In
Standby mode, the buffer remains enabled, t he heads are parked and t he
spindle i s at rest. The dr ive accepts all commands an d returns to Acti ve
mode any time disc access is necessary.

Sleep mode.

Immediate 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 command from the host. After receiving a soft reset,
the drive exits Sleep mode and enters Standby mode with all current
emulation and translation parameters intact.

Idle and standby timers.

timer at power-on. In m ost systems, you can set this delay using the system
setu p utility . E a c h time t h e drive perfo r m s an Active fu n c t i on (re ad, wr ite or
seek), the idle and standby timers are reinitialized and begin counting down
from their specified delay times to zero. If the idle timer reaches zero before

The drive is in Active mode during the read/write and seek

At power-on, the drive sets the idle timer to enter Idle mode

The dri ve enter s Standb y mode when the h ost send s a

The drive enters Sleep mode after receiving a Sleep

The drive sets the default time delay for the idle

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 11

any driv e activity is required, t he drive makes a transition to Idle mode.
If the host has set the stan dby timer , the stand by countdown continues.
If the host has not s et the st andby ti mer, the dr ive remai ns in Idle m ode.
If the st andby timer reaches zero befor e any dri ve act ivi ty is requi red, the
drive makes a transition to Standby mode. In both Idle and Standby
mode, the driv e ac ce pts al l comm ands and r eturn s t o Acti ve mod e wh en
disc access is necessary.

1.8 Environmental tolerances

1.8.1 Ambient temperature

Operating 5° to 55°C (41° to 131°F)
Nonoperating –40° to 60°C (–40° to 140°F)

Above 1,00 0 feet (305 met ers), the maximum temp eratur e is der-

Note.

ated linearly to 112 °F (44°C) at 10,000 feet (3,048 me ters). Oper­ating 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 80% noncondensing (10% per hour max)
Nonoperating 8% to 80% noncondensing (10% per hour max)

1.8.3.2 Wet bulb temperature

Operating 28.9°C (84°F) max
Nonoperating 28.9°C (84°F) max

1.8.4 Altitude

Operating –61 m to 3,048 m (–200 ft to +10,000 ft)
Nonoperating –61 m to 12,192 m (–200 ft to +40,000 ft)

12 Medalist 3240 and Medalist 2531 Product Manual, Rev. A

1.8.5 Shock

For all shock specifications, it is assumed 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. For the nonoperating specifications,
it is assumed that the read/write heads are positioned in the shipping
zone.

At power-down, the read/write heads automatically move to the

Note.

shipping zone. The head assembly parks outside of the maxi­mum data cylinder. When power is applied, the heads recalibrate
to Trac k 0 .

1.8.5.1 Operating shock

The Medalist 3240 and the Medalist 2531 will comply with the performance
levels specified in this document when subjected to a maximum operating
shock of 5.0 Gs (ba sed on ha lf-sine sh ock pulses of 11 ms ec, as specified in
MIL-STD-202F). Shocks are not to 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 oper ation is 75 Gs ( based on nonrepet itive half-s ine
shock pulses of 11 msec duration, as defined in MIL-STD-202F).

1.8.6 Vibration

For all vibration speci fications, it i s assumed that the drive is mounted
securely with the input vibration appl ied at the dr ive mounting screws.
Vibration may be applied in the X, Y or Z axis. For the nonoperating
specifications, it is as sumed t hat t he r ead/write heads are positioned in
the shipping zone.

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 0.020 inches displacement (peak to peak)
22–350 Hz 0.50 Gs acceleration (zero to peak)

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 13

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 0.081-inch displacement (peak to peak)
22–350 Hz 5 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 are taken under essentially
free-field conditio ns o ver a r ef lec ting plane. For all tests, t he dr ive is o rien ted
with the cover facing upwar d.

Typical sound

Mode

Idle 3.7 4.1
Read/Write 4.3 4.5

power (bels)

Maximum sound
power (bels)

1.10 Electromagnetic susceptibility

The drive operates without errors when subjected to the following:
Radiated noise

Electrostatic discharge*
Magnetic field strength

* Electrostatic discharge susceptibility is measured with the drive

mounted in a representative computer system (mounted to a ground
plane with earth grounding). Discharges are applied to the bezel or
other external surfaces on the ground plane.

≤ 3 volt/meter, 30 Hz to 1 GHz
≤ 10 KVolts
≤ 5 Gauss

1.11 Reliability

Nonrecoverable read errors 1 per 1014 bits read, max
Mean time between failures 300,000 power-on hours

(nominal power, 25°C ambient
temperature)

14 Medalist 3240 and Medalist 2531 Product Manual, Rev. A

Contact start-stop cycles 40,000 cycles

(at nominal voltage and temperature,
with 60 cycles per hour and a 50%
duty cycle)

Preventive maintenance None required

1.12 Agency certification

1.12.1 Safety certification

The drive is recognized in ac cordance with UL 1950 and CSA C22.2
(950) and meets all applicable sections of I EC 950 and EN 60950 as
tested by TUV North America.

1.12.2 Electr omag net ic Compat ibilit y

Hard drives that display the CE marking comply with European Union
requirements specified in Electromagnetic Compatibility Directives. Test­ing is performed to standards EN50082-1 and EN55022-B.

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 directiv es when used in the test systems, we cannot
guarantee that all systems will comply with the dir ectives. The drive is
designed for operation inside a properly designed enclosure, with prop­erly shielded I/O cabl e ( if necessary) and terminators on all unused I/O
ports. Computer manufacturers and system int egrators should confirm
EMC compliance and provide CE marking for their products.

1.12.3 FCC verification

These drives are intended to be contained solely within a personal
computer or similar enclosur e (not att ached as an external dev ice). As
such, each drive is considered t o 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 devic e 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 t o result in interference
to radio and television reception.

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 15

Radio and Television Interference.

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 inter ferenc e to radio or television, whic h c an 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 s uggestions. You may find helpful the
following booklet prepared by the Federal Communications Commission:

This equipment generates and

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.

.

16 Medalist 3240 and Medalist 2531 Product Manual, Rev. A

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 17

2.0 Drive mounting and configuration

2.1 Handling and sta tic -d isch ar ge pr ecau ti on s

After unpacking, and before installation, the drive may be exposed to
potential handling a nd electrosta tic discharg e (ESD) hazards . You must
observe st andard stat ic-discharg e precautions. A grounded wri st-strap is
preferr ed.

Handle the drive only by the sides of the head/disc assembly. Avoid
contact with the printed circuit board, all electronic components and the
interface connector. Do not apply pressure to the top cover of the drive.
Always rest the drive on a padded antistatic surface until you mount it in
the host system.

2.2 Jumper settings

2.2.1 Master/slave configuration

You must establish a master/slave relationship between two drives that are
attached to a single AT bus. You can configure a drive to become a master
or slave by setting the master/slave jumpers, shown in Figure 2 on page 18.
This drive supports master/slave configuration using the cable select
option. This requires a special daisy-chain cable that grounds pin 28
(CSEL) on one of its two drive connectors. If you attach the drive to the
grounded CSEL connector, it becomes a master. If you attach the drive
to the ungrounded CSEL connector, it becom es a slave. To use this
option, the host system and both drives must support cable select, and
both drives must be configured for cable select . To configure this drive
for cable select, install a jumper as shown in Figure 2.

For the master drive to recognize the slave drive using t he DASP– signal,
the slave drive must assert the DASP– signal at power up, and the master
drive must monitor DASP– at power up.

2.2.2 Alternate capacit y jum per

Some older computers may “hang” if their BIOS detects a hard drive that
has more than 4,092 cylinders at startup. To allow these computers to
recognize the ST33240A and the ST32531A, this drive includes a
capacity-limiting jumper, which s ets 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.

y

18 Medalist 3240 and Medalist 2531 Product Manual, Rev. A

1

2

3

4

ATA interface

connector

24

135

2

only

if the drive does

pin 1

6

31

Alternative
capacity
jumper

42

Full capacity (as shipped)

Limit capacity to 2.1 Gbytes
(4,092 cylinders)

Use this jumper setting if your

1.
computer fails to boot because it
cannot address drives with more
than 4,096 cylinders.

1

Drive is slave
Drive is master in single-

or dual-drive system
Drive is master with

non-ATA-compatible slave
Enable cable select

2.

Use this jumper setting
not work with a single jumper on pins 5 and 6.

Consult your computer manual to determine

3.
if

our computer supports cable select

4-pin power

connector

Master/slave
jumper settings

3

Figure 2. Master/slav e ju mp ers and al te rna te ca paci t y jumper

for the ST33240A and ST32531A

2.3 Drive mountin g

You can mount the drive in any orientation using four screws in the
side-mounting holes or f our screws in the bot tom-mounting hol es. See
Figure 3 on page 19 for drive mounting dimensions.

• A llow a minimum clearance of 0.030 inches (0.76 mm) around the
entire perimeter of the drive for cooling.

• Use only 6x32 UNC mounting screws.

• Do not insert the mounting screws more than 0.22 i nches (5.6 mm)

into the bottom mounting holes.

• Do not insert the mounting screws more than 0.14 i nches (3.6 mm)
into the side mounting holes.

• Do not overtighten the mounting screws (maximum torque: 3 inch-lb).

• Do not use a drive interface cable that is more than 18 inches long.

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 19

Note:
Units are in inches (mm)
Tolerances:

0.

xx

± 0.01

0.

xxx

± 0.005

1.00 ± 0.03

(

25.4 ± 0.8)

2.362

(

59.99 ± 0.25

3x.250

± 0.

015

(6.35

±

0.38)

(both sides)

0.230 ± 0.015
(5.84 ± 0.38

3x 6-32 UNC-2B
max. insertion depth

0.14 (3.6) both sides

4.000

±

0.010

(

101.60

±

0.25

)

±

0.03

5.75

(

146.1

±

±

0.010

)

0.630 +0.030, –0.005
(16.00 +0.76, –0.13)

0.125 +0.030, –0.005
(3.18 +0.76, –0.13)

0.8

0.180 ± 0.015
(4.57 ± 0.38)

2.23 ± 0.03

)

)

(56.6 ± 0.8

3.72 ± 0.03
(94.5 ± 0.8

3.750

)

(95.25

4.00

(101.6

±

0.010

± 0.

± 0.

± 0.5

)

4X 6-32 UNC-2B
max. insertion
depth 0.22 (5.6)

1.750

± 0.

010

(44.45

± 0.

25)

2.375
+0.030, –0.005
(60.33
+0.76, –0.13)

25)
02

)

Figure 3. Mounting dim ensi on s for the ST33240A and ST32531A—top,

side and end view

20 Medalist 3240 and Medalist 2531 Product Manual, Rev. A

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 21

3.0 ATA interface

This drive uses the industry-standard A TA task file interface. It supports
both 8-bit and 16-bit data t ransfers. It supports ATA programmed in­put/output (PIO) modes 0, 1, 2, 3 and 4; ATA single-word DMA modes
0, 1 and 2; and ATA m ultiword DMA modes 0, 1 and 2. The drive also
supports the use of the IORDY signal to provide reliable high-speed data
trans fer s.

You can use a daisy-chain cable to connect two drives to a single AT
host bus. For detailed inform ation regarding the ATA i nterface, refer to
the

Draft ATA-3 document X3T10 2008, Revision 6,

ferred to as the

Draft Proposed ATA-3 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 Proposed ATA-3 Standard.

3.1.1 AT bus signal levels

Signals that the drive receives must have the following characteristics at
the drive connector:

subsequently re-

.

Logic low 0.0V to 0.7V
Logic high 2.0V to 5.25V

22 Medalist 3240 and Medalist 2531 Product Manual, Rev. A

Drive pin #

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

Pins 28, 34 and 39 are used for master-slave communication (details shown below).

28
34
39

Signal name

–

Reset

Ground

DD7
DD8
DD6
DD9
DD5

DD10

DD4

DD11

DD3

DD12

DD2

DD13

DD1

DD14

DD0

DD15

Ground

(removed)

DMARQ

Ground

–

DIOW

Ground

–

DIOR

Ground

IORDY

CSEL

–

DMACK

Ground

INTRQ

–

IOCS16

DA1

–

PDIAG

DA0
DA2

–

CS1FX

–

CS3FX

–

DASP

Ground

Drive 0 (master)Drive 1 (slave)

28
34
39

Host pin # and signal description

1

Host Reset

2

Ground

3

Host Data Bus Bit 7

4

Host Data Bus Bit 8

5

Host Data Bus Bit 6

6

Host Data Bus Bit 9

7

Host Data Bus Bit 5

8

Host Data Bus Bit 10

9

Host Data Bus Bit 4

10

Host Data Bus Bit 11

11

Host Data Bus Bit 3

12

Host Data Bus Bit 12

13

Host Data Bus Bit 2

14

Host Data Bus Bit 13

15

Host Data Bus Bit 1

16

Host Data Bus Bit 14

17

Host Data Bus Bit 0

18

Host Data Bus Bit 15

19

Ground
(No Pin)

20
21

DMA Request

22

Ground

23

Host I/O Write

24

Ground

25

Host I/O Read

26

Ground

27

I/O Channel Ready

28

Cable Select pin

29

DMA Acknowledge

30

Ground

31

Host Interrupt Request

32

Host 16 Bit I/O

33

Host Address Bus Bit 1

34

Passed Diagnostics

35

Host Address Bus Bit 0

36

Host Address Bus Bit 2

37

Host Chip Select 0

38

Host Chip Select 1

39

Drive Active / Slave Present

40

Ground

CSEL

PDIAG

DASP–

–

Host

28
34
39

Figure 4. I/O pins and suppor ted ATA signals

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 23

3.2 ATA Interface commands

3.2.1 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

Proposed ATA-3 Standard.

See section 3.2.4 on page 29 for details and

subcommands used in the S.M.A.R.T. implementation.

Draft

Command

Command name

code

ATA-standard commands

Execute Drive Diagnostics 90
Execute S.M.A.R.T. Command B0
Format Track 50
Identify Drive EC
Initialize Drive Parameters 91
NOP 00
Read Buffer E4
Read DMA (w/retry) C8
Read DMA (no retry) C9
Read Long (w/retry) 22
Read Long (no retry) 23
Read Multiple C4
Read Sectors (w/retry) 20

Supporte d by

this drive

H

H

H

H
H
H

H
H

H
H
H

H
H

Yes
Yes
Yes
Yes
Yes

No
Yes
Yes
Yes
Yes
Yes
Yes
Yes

Read Sectors (no retry) 21
Read Verify Sectors (w/retry) 40
Read Verify Sectors (no retry) 41
Recalibrate 10
Seek 70
Set Features EF

continued

H
H
H
H
H

H

Yes
Yes
Yes
Yes
Yes
Yes

24 Medalist 3240 and Medalist 2531 Product Manual, Rev. A

continued from pr evious page

Command

Command name

code

Set Multiple Mode C6
Write Buffer E8
Write DMA (w/retry) CA
Write DMA (no retry) CB
Write Long (w/retry) 32
Write Long (no retry) 33
Write Multiple C5
Write Same E9
Write Sectors (w/retry) 30
Write Sectors (no retry) 31
Write Verify 3C

ATA-standard power-management commands

Check Power Mode 98
Idle 97

or E5

H

or E3

H

Supporte d by

this drive

H
H

H

H
H
H

H

H
H
H

H

H
H

Yes
Yes
Yes
Yes
Yes
Yes
Yes

No
Yes
Yes

No

Yes
Yes

Idle Immediate 95
Sleep 99
Standby 96
Standby Immediate 94

or E1

H

or E6

H

or E2

H

or E0

H

H
H
H
H

Yes
Yes
Yes
Yes

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 25

The following commands contain drive-specific features that may not be
described in the

Draft Proposed ATA-3 Standard

.

3.2.2 Identify Drive comman d

The Identify Drive 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
below. All reserved bits or words should be set to zero. Parameters listed
with an “
Section 1 of this manual for default parameter sett ings for the Medalist
3240 and the Medalist 2531.

Note.

Word Description Cont ent s

” are drive-specific or vary with the state of the drive. See

x

If the alternate capacity jumper is installed on the ST33240A or

ST32531A, the drive capac ity is redu ced in Wo rd 1 to 4,092 c ylinders.

Configuration information:

•

Bit 10: disc transfer > 10 Mbits/sec

•

Bit 6: fixed drive

0

•

Bit 4: head switch time > 15 µsec

•

Bit 3: not MFM encoded

•

Bit 1: hard-sectored disc

0C5A

H

Number of fixed cylinders

1

(default logical emulation): 6,253 (ST33240A)
4,956 (ST32531A)

2 ATA-reserved 0000
3 Number of heads (default logical emulation): 16 0010

Number of unformatted bytes per track

4

(not used)
Number of unformatted bytes per sector

5

(not used)
Number of sectors per track

6

(default logical emulation): 63

7–9 ATA-reserved 0000

10–19

continued

Serial number:
(20 ASCII characters, 0000

= none)

H

186D

H

(ST33 240A)

135C

H

(ST32 531A)

H
H

0000

H

0000

H

003F

H

H

ASCII

26 Medalist 3240 and Medalist 2531 Product Manual, Rev. A

continued from pr evious page

Word Description Cont ents

Controller type = dual-port multisector buffer

20

with caching (not used)

0000

H

21 Buffer size (not used) 0000
22 Number of ECC bytes available (4) 0004

23–26 Firmware revision (8 ASCII character string): x.xx

ST33240A
or
ST32531A

8010

27–46

47

Drive model number: (40 ASCII characters,
padded with blanks to end of string)

(Bits 0–7) Maximum sectors per interrupt on
read/write multiple (16)

48 Double word I/O (not supported) 0000

DMA data transfer, IORDY (supported), LBA

49

mode, ATA-2 standby times supported

0F01

50 ATA-reserved 0000
51 PIO data-transfer cycle timing mode 0100
52 DMA transfer cycle timing mode 0200

Validity of words 54–58 and words 64–70

53

(words may be valid)

54 Number of cylinders (current emulation mode)

Number of heads

55

(current emulation mode)

0003

xxxx
xxxx

H
H

H

H

H

H
H
H

H

H

H

Number of sectors per track

56

(current emulation mode)

57–58 Number of sectors (current emulation mode)

Number of sectors transferred during a Read

59

Multiple or Write Multiple command
LBA sectors available (w/word 61):

6,303,024 (ST33240A)

60

4,995,648 (ST32531A)

xxxx

H

xxxx

H

01

xx

H

2D30

H

(ST33 240A)

3D4C

H

(ST32 531A)

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 27

Word Description Cont ents

0060

H

(ST33240A)

61 LBA sectors available (continued)

007C

H

(ST32531A)

62 ATA-obsolete 0000

Multiword DMA active and modes supported

63

(see note following this table)
Advanced PIO modes supported (modes 3 and

64

4 supported)
Minimum multiword DMA transfer cycle time per

65

word (120 nsec)
Recommended multiword DMA transfer cycle

66

time per word (120 nsec)
Minimum PIO cycle time without IORDY flow

67

control (383 nsec)

07

0

x

0003

0078

0078

017F

Minimum PIO cycle time with IORDY flow

68

control

0078

(120 nsec)

69–127 ATA-reserved 0000

128–159 Seagate-reserved

xxxx

160–255 ATA-reserved 0000

Note.

The following DMA mode settings are used in word 63 of the
Identify Drive command:

H

H

H

H

H

H

H

H

H

H

Word Bit Description (if bit is set to 1)

63 0 Multiword DMA mode 0 available
63 1 Multiword DMA mode 1 available
63 2 Multiword DMA mode 2 available
63 8 Multiword DMA mode 0 currently active
63 9 Multiword DMA mode 1 currently active
63 10 Multiword DMA mode 2 currently active

28 Medalist 3240 and Medalist 2531 Product Manual, Rev. A

3.2.3 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 regist er, 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 and 4 bytes of ECC.
The acceptable values for the Features register are defined as follows:

Enable write cache

02

H

03HSet transfer mode (based on value in Sector Count register)

Sector Count register values:

Set PIO mode to default (PIO mode 2)

00

H

Set PIO m od e to default and dis able IORDY (PI O m ode 2)

01

H

PIO mode 0

08

H

PIO mode 1

09

H

PIO mode 2

0A

H

0BHPIO mode 3

PIO mode 4

0C

H

Single-word DMA mode 0

10

H

Single-word DMA mode 1

11

H

Single-word DMA mode 2

12

H

Multiword DMA mode 0

20

H

Multiword DMA mode 1

21

H

Multiword DMA mode 2

22

H

Sixteen bytes of ECC apply on read long and write long

44

H

commands
Disable read look-ahead (read cache) feature

55

H

Disable reverting to power-on defaults

66

H

Disable write cache

82

H

Enable read look-ahead (read cache) feature

AA

H

BBH4 bytes of ECC apply on read long and write long commands

(default)

CCHEnable reverting to power-on defaults

(default)

(default)

(default)

(default)

At power-on, or after a hardware reset, the default values of the features
are as indicated above. A software reset also changes the features to
default values unless a 66

command has been received.

H

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 29

3.2.4 S.M.A.R.T. commands

Self-Monitoring, Analysis and Reporting Technology (S.M.A .R.T.) is an
emerging technology that provides near-term failure predicti on for disc
drives. When S.M.A.R.T. is enabled, the Seagate drive monitors prede­termined drive attributes that are susceptible to degradation over time. If
a failure is likely to occur, S.M.A.R.T. makes a status report available so
that the host can prompt the user to back up data on the drive. Not all
failures are predictable. S.M.A.R.T. predictabi lity is limit ed to the attrib­utes the drive can monitor. For more information on S.M.A.R.T. com­mands and implementation, see the

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
the feature. The table below shows the S.M.A.R.T. command codes that
these drives use.

Draft Proposed ATA-3 Standard.

Before executing a S.M.A.R.T. command by writing B0

to the Command

H

Register, the host must do the following:

• Write the value 4F

• Write the value C2

to Cylinder_Low register.

H

to the Cylinder_High register.

H

• Writ e the appropriate S.M.A.R.T. code to the Features register, as
shown in the table below:

Code in
Features
Register S. M.A.R. T. Command

D0
D1
D2
D3
D4
D7
D8

H

H

H

H

H

H

H

Enable/Disable Attribute Autosave Yes
Enable S.M.A.R.T. Operations Y es
Enable/Disable Attribute Autosave Yes
Save Attribute Values Yes
Execute Off-line Immediate Yes
Write Warranty Threshold Yes
Enable S.M.A.R.T. Operations Y es

Supporte d by
Medalist 3240 and
Medalist 2531

D9
DA

H

H

Disable S.M.A.R.T. Operations Yes
Return S.M.A.R.T. Status Yes

30 Medalist 3240 and Medalist 2531 Product Manual, Rev. A

Code in
Features
Register S. M.A.R. T. Command

DB

H

If an appropriate code is not written to the Features Register, the

Note.

Enable/disable Automatic Off-line Yes

command will be aborted and 0

x

04 (abort) will be wr itten to the

Supporte d by
Medalist 3240 and
Medalist 2531

Error register.

Seagate Technology, Inc.
920 Disc Drive, Scotts Valley, California 95066, USA

Publicatio n Number: 20401033-001, Rev. A, P rinted in USA