Seagate Medalist 630xe User manual

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Medalist 630xe
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Medalist 850xe
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ATA Interface Drive
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Product Manual
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Medalist 630xe
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Medalist 850xe
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ATA Interface Drive
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Product Manual
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© 1996 Seagate Technology, Inc. All rights reserved
Publication Number: 39301-201, Rev. A, June 1996
Supersedes Publication Number 36330-x
xx
Seagate, Seagate Technology and the Seagate logo are registered
trademarks of Seagate Technology, Inc. Medalist is a trademark of
Seagate Technology, Inc. Other product names are trademarks or reg-
istered 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
Quick specification chart . . . . . . . . . . . . . . . . . . . . . . 2
1.0 Specification summary . . . . . . . . . . . . . . . . . . . . . 5
1.1 Format configuration . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Physical organization . . . . . . . . . . . . . . . . . . . . . 6
1.3 Functional specifications . . . . . . . . . . . . . . . . . . . 6
1.4 Physical dimensions . . . . . . . . . . . . . . . . . . . . . . 6
1.5 Seek time . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.6 Start and stop time . . . . . . . . . . . . . . . . . . . . . . 7
1.7 Power specifications . . . . . . . . . . . . . . . . . . . . . . 8
1.7.1 Power-management modes . . . . . . . . . . . . . . . 8
1.7.2 Voltage tolerances . . . . . . . . . . . . . . . . . . . 10
1.7.3 Conducted noise . . . . . . . . . . . . . . . . . . . . 10
1.7.4 Environment . . . . . . . . . . . . . . . . . . . . . . 11
1.7.5 Ambient temperature . . . . . . . . . . . . . . . . . . 11
1.7.6 Temperature gradient . . . . . . . . . . . . . . . . . . 11
1.7.7 Relative humidity . . . . . . . . . . . . . . . . . . . . 11
1.7.8 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.7.9 Shock and vibration . . . . . . . . . . . . . . . . . . 12
1.8 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.9 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.10 Auto-park . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.11 Agency listings . . . . . . . . . . . . . . . . . . . . . . . 13
1.12 EC compliance . . . . . . . . . . . . . . . . . . . . . . . 13
1.13 FCC verification . . . . . . . . . . . . . . . . . . . . . . 14
2.0 Configuration and mounting . . . . . . . . . . . . . . . . . 15
2.1 Handling and static-discharge precautions . . . . . . . . . 15
2.2 The ATA interface connector . . . . . . . . . . . . . . . . 17
2.3 Power connector . . . . . . . . . . . . . . . . . . . . . . . 17
2.4 Master/slave jumper block . . . . . . . . . . . . . . . . . . 17
Medalist 630xe and 850xe ATA Product Manual, June 1996 i

2.4.1 Single-drive or master with an ATA-compatible slave . 18
2.4.2 The drive as slave . . . . . . . . . . . . . . . . . . . 18
2.4.3 Master with a non-ATA-compatible slave . . . . . . . 18
2.4.4 Cable-select configuration . . . . . . . . . . . . . . . 18
2.4.5 Factory-test configuration . . . . . . . . . . . . . . . . 19
2.5 Mounting the drive . . . . . . . . . . . . . . . . . . . . . . 19
3.0 ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1 ATA interface connector pin assignments . . . . . . . . . . 21
3.2 Bus signal levels . . . . . . . . . . . . . . . . . . . . . . . 21
3.3 Supported ATA commands . . . . . . . . . . . . . . . . . 23
3.3.1 Identify Drive command (ECH) . . . . . . . . . . . . . 25
3.3.2 Format track command (50H) . . . . . . . . . . . . . . 27
3.3.3 Set Features command (EFH) . . . . . . . . . . . . . 28
3.3.4 Set Multiple Mode command (C6H) . . . . . . . . . . 30
3.3.5 Read Multiple command (C4H) . . . . . . . . . . . . . 30
3.3.6 Write Multiple command (C5H) . . . . . . . . . . . . . 31
3.4 Onboard drive diagnostics . . . . . . . . . . . . . . . . . . 32
3.5 ECC performance tests . . . . . . . . . . . . . . . . . . . 32
3.6 Supported BIOS . . . . . . . . . . . . . . . . . . . . . . . 33
ii Medalist 630xe and 850xe ATA Product Manual, June 1996

Contents
Figure 1. Typical startup current profile . . . . . . . . . . . . . . . . 8
Figure 2. ST3850A Connectors and jumpers . . . . . . . . . . . . 16
Figure 3. The drive interface connector . . . . . . . . . . . . . . . 17
Figure 4. Master/slave jumper block settings . . . . . . . . . . . . 18
Figure 5. Connecting cable-selected drives . . . . . . . . . . . . . 19
Figure 6. Standard mounting dimensions . . . . . . . . . . . . . . 20
Figure 7. ATA connector pin assignments . . . . . . . . . . . . . 22
Medalist 630xe and 850xe ATA Product Manual, June 1996 iii

Introduction
This manual describes the functional, mechanical and interface specifi-
cations for the Medalist 630xe and the Medalist 850xe hard disc drives.
The drives are referred to throughout this manual by their model num-
bers, ST3630A for the Medalist 630xe and ST3850A for the Medalist
850xe.
The ST3630A and ST3850A are designed to meet the needs of entry
level-to-midrange desktop computers. They are standard 3.5-inch form-
factor drives that feature advance transfer modes, Multiple block
read/write, segmented cache and power management. Their respective
631.1-Mbyte and 850.5-Mbyte capacities provide ample space to store
large software programs and for those programs to run efficiently.
Fast-ATAperformanceisavailableinbothdrives.TheST3850Asupports
advanced PIO modes 3 and 4 and advanced multiword DMA modes 1
and2forbursttransferratesupto16.6Mbytespersecond.TheST3630A
supports advanced PIO mode 3 and advanced multiword DMA mode 1
forbursttransferratesupto13.3Mbytespersecond.Bothdrivessupport
Multiple block read/write, which allows them to store contiguous blocks
of data in their 120-Mbyte segmented cache and to transfer the blocks
in a single burst.
The drives support power-management modes for energy-efficient op-
eration. Power dissipation falls to 0.725 W (typical) in Standby mode.
The drives enter power-saving modes at the request of the host. They
can also be programmed to automatically enter power-saving modes
using the Idle timer or Standby timer commands. The power-manage-
ment modes the drives support are discussed in subsection 1.7.1 on
page8.Thepower-managementcommandsthedrivessupportarelisted
in the ATA-command table on page 24.
Medalist 630xe and 850xe ATA Product Manual, June 1996 1

Quick specification chart
The following table serves as aquick reference for the ST3630Aand the
ST3850Aperformancespecifications.Theseandotherspecificationsare
discussed in the Specification summary section following the table.
Drive specification ST3630A ST3850A
Guaranteed capacity (Mbytes1) (x106bytes) 631.1 850.5
Guaranteed sectors 1,232,784 1,661,184
Bytes per sector 512 512
Sectors per track 63 63
Logical Read/Write heads 16 16
Logical cylinders 1,223 1,648
Physical Read/Write heads 4 4
Physical disc 2 2
Recording density (Kbits/inch) 68 70
Track density (tracks/inch) 3,384 4,300
Spindle speed (RPM) 3,811 3,811
Track-to-track seek time (msec typical) 5 5
Average seek time (msec typical) 14 14
Full-stroke seek time (msec typical) 34 34
Average latency (msec) 7.87 7.87
Internal data-transfer rate (Mbits per sec max) 22.9 to 39.6 23.1 to 42.3
External transfer rate (Mbytes per sec) PIO mode 11.1 (max) 16.6 (max)
External transfer rate (Mbytes per sec) DMAmode 13.3 (max) 16.6 (max)
Cache buffer (Kbytes) 120 120
Height (inches max) 1.00 1.00
Width (inches max) 4.02 4.02
Depth (inches max) 5.77 5.77
Typical weight (lb) 1.3 1.3
Power-on to ready (sec typical) 7 7
Spinup current (typical) 1.25A 1.25A
1. One Mbyte equals one million bytes.
2 Medalist 630xe and 850xe ATA Product Manual, June 1996

Drive specification ST3630A ST3850A
Seek power (typical) 5.23 W 5.23W
Read/Write power (typical) 3.34W 3.34W
Idle total power (typical) 1.985W 1.985W
Standby(typical) 0.725W 0.725W
Voltage tolerance (including noise): +5V ±5% ±5%
Voltage tolerance (including noise): +12V ±5% ±5%
Operating temperature (°C) 5 to 55°C 5 to 55°C
Nonoperating temperature (°C) –40 to 70°C –40 to 70°C
Operating temperature gradient (°C per hr. max) 20°C 20°C
Relative humidity, operating gradient (max.) 10% per hr 10% per hr
Altitude operating –1,000
to 10,000 ft. –1,000 to 10,000 ft.
Altitude nonoperating –1,000
to 40,000 ft. –1,000 to 40,000 ft.
Shock, normal operating (Gs max at 11 msec) 2.0 Gs 2.0 Gs
Shock, nonoperating (Gs max at 11 msec) 75.0 Gs 75.0 Gs
Vibration (Gs max at 22-300 Hz without
nonrecoverable errors), operating 1.0 Gs Peak to Peak 1.0 Gs Peak toPeak
Vibration (Gs max at 22-300 Hz with no physical
damage incurred), Nonoperating 8.0 Gs Peak to Peak 8.0 Gs Peak toPeak
Drive acoustics, Idle mode (dBA), typ 29 dBA 29 dBA
Nonrecoverable read errors (per bits transferred) 1013 1013
Mean time between failures (power-on hours) 300,000 300,000
Contact start-stop cycles 40,000 40,000
Service life (years) 5 5
Medalist 630xe and 850xe ATA Product Manual, June 1996 3

1.0 Specification summary
1.1 Format configuration
The drive is low-level formatted at the factory. You do not need to
low-level format the drive.
You can operate the drive using many different address configurations,
provided the number of sectors per track does not exceed 63. The
followingtables show thecylinder headsector(CHS)translationgeome-
try for the drive. You can verify the parameters using the Identify Drive
(ECH) command.
ST3630A CHS LBA
Cylinders 1,223
Heads 16
Sectors per track 63
Guaranteed capacity (bytes) 631,185,408 631,185,408
Guaranteed sectors 1,232,784 1,232,784
ST3850A CHS LBA
Cylinders 1,648
Heads 16
Sectors per track 63
Guaranteed capacity (bytes) 850,526,208 850,526,208
Guaranteed sectors 1,661,184 1,661,184
Medalist 630xe and 850xe ATA Product Manual, June 1996 5

1.2 Physical organization
Model ST3630A ST3850A
Heads 4 4
Discs 2 2
1.3 Functional specifications
Model ST3630A ST3850A
Interface ATA ATA
Internal data-transfer rate (Mbits/sec) 22.9 to 39.6 23.1 to 42.3
External data-transfer rate (Mbytes/sec)
PIO Mode 11.1 (max) 16.6 (max)
DMA Mode 13.3 (max) 16.6 (max)
Spindle speed ±0.5% (RPM) 3,811 3,811
Segmented cache (Kbytes) 120 120
Zone Bit Recording method RLL (1,7) RLL (1,7)
Bytes per sector 512 512
Recording density, max (BPI) 68K 70K
Flux density, max (FCI) 51K 52.5K
Track density, max (TPI) 3,384 4,300
1.4 Physical dimensions
Height (max) 1.00 inch (25.4 mm)
Width (max) 4.02 inches (102.1 mm)
Depth (max) 5.77 inches (146.6 mm)
Weight (max) 1.3 lb (0.59 Kg)
6 Medalist 630xe and 850xe ATA Product Manual, June 1996

1.5 Seek time
All performance measurements are taken using a 25-MHz 486 AT
computer (or faster) with an 8.3-MHz I/O bus. The measurements are
takenusingnominalpoweratsealevelandat25°Cambienttemperature.
The specifications in the table 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
10,000 measurements of seeks between random tracks, less over-
head.
•Full-stroke seektimeis one-halfthetimeneeded toseek fromthefirst
data cylinder to the maximum data cylinder and back to the first data
cylinder. The full-stroke average is determined by measuring 100
full-stroke seeks in both directions.
Track-to-track
typ (msec) Average typ (msec) Full-stroke typ (msec) Latency (msec)
5 14 34 7.87
1.6 Start and stop time
The drive is ready within 10 seconds. Typical and maximum start and
stop times are shown in the following table. Figure 1 on page 8 shows a
typical startup current profile.
Typical Maximum
Start time 7 sec 10 sec
Stop time 6 sec 9 sec
Medalist 630xe and 850xe ATA Product Manual, June 1996 7

1.7 Power specifications
Except during a write operation, you can apply power to the drive or
remove power from the drive in any sequence without losing data or
damaging the drive.
1.7.1 Power-management modes
The drive supports the following power-management modes:
•Active mode. The drive is seeking, reading or writing.
•Idle mode. The drive enters Idle mode when it receives an Idle
Immediate command or the idle timer counts down to zero. In Idle
modethespindleremainsuptospeed,thesegmentedcacheremains
enabled,andthedriveacceptsallcommandsandreturnstotheActive
mode whenever a seek, read or write operation is needed.
•Standby mode. The drive enters Standby mode when it receives a
Standby Immediate command or the standby timer counts down to
zero. In the Standby mode the segmented cache remains enabled,
the headsare parkedin theshipping zoneand thespindle isstopped.
The drive accepts all commands and returns to the Active mode
whenever a seek, read or write operation is needed.
•Sleep mode. The drive enters Sleep mode when it receives a Sleep
Immediatecommand.Theheads areparked in theshipping zoneand
the spindle is at rest. A hard reset or a soft reset returns the drive to
Active mode. A soft reset preserves the current emulation and trans-
lation parameters.
Time (seconds)
2.0 4.0 6.0 8.0
400
600
800
1,000
1,200
200
10.0 12.0 14.0 16.0 18.0 20.0
Current mA
Figure 1. Typical startup current profile
8 Medalist 630xe and 850xe ATA Product Manual, June 1996

1.7.1.1 Idle and Standby timers
The drive can enter the Idle mode or the Standby mode by either of two
methods:
•The computer sends an Idle Immediate command or a Standby
Immediate command.
•The idle timer or the standby timer counts down to zero.
The Idle and Standby timers are disabled at the factory. Use the com-
puter’s setup utility to enable and set the timer delays. When the Idle
timer is enabled, it is initialized each time the drive completes a read,
write or seek.
If the Idle timer reaches zero before any drive activity is required, the
drive goes into the Idle mode, and the Standby timer, if it is enabled, is
initialized. If the Standby timer reaches zero before any drive activity is
required, the drive goes into the Standby mode. See the
Seagate ATA
Interface Reference Manual
, publication number 36111- xxx, for details.
InboththeIdleand Standbymodes,thedriveacceptsallcommandsand
returnstotheActivemodeanytimediscaccessisnecessary. Theremay
be a slight delay between the time the drive receives the command and
the time drive activity begins.
1.7.1.2 Power consumption
The following guidelines are used to measure power consumption:
•Allmeasurementsaretaken atsea level withan ambienttemperature
of 25°C.
•All typical measurements are taken using nominal voltages; the peak
startup power is measured using the nominal voltages.
•Seek current measurementsare takenusing anRMS meter while the
drive is randomly seeking with two spindle rotations between each
seek.
Medalist 630xe and 850xe ATA Product Manual, June 1996 9

Mode Current (amps) Power (watts)
+12V +5V
Spinup (peak) 1.25 0.35 8.53
Active
Seeking (typ) 0.34 0.23 5.23
Read/write (typ) 0.145 0.32 3.34
Idle2(typ) 0.13 0.085 1.985
Standby2(typ) 0.025 0.085 0.725
Sleep2(typ) 0.025 0.070 0.650
1.7.2 Voltage tolerances
+5V +12V
Voltage tolerance
including noise ±5% ±5% ±10% during spinup
1.7.3 Conducted noise
The drive is expected to operate with a maximum of:
•150 mV peak-to-peak triangular-wave injected noise at the power
connector. The frequency is 10 Hz to 100 KHz with equivalent
resistive loads.4
•100 mV peak-to-peak triangular-wave injected noise at the power
connector. The frequency is 100 KHz to 10 MHz with equivalent
resistive loads.4
2. These values apply only when power management is enabled. To enable power
management, use the computer setup utility.
3. Spinup power is averaged over 7 seconds.
4. Equivalent resistance is calculated by dividing the respective voltage by the typical RMS
read/write current.
10 Medalist 630xe and 850xe ATA Product Manual, June 1996

1.7.4 Environment
The acceptable environmental conditions for the drive are specified
below. The specifications in this section are defined as follows:
•Operating specifications assume that the drive is powered up.
•Nonoperating specifications assume that the drive is packaged as it
was shipped from the factory.
1.7.5 Ambient temperature
Operating 5°to 55°C (41°to 131°F)
Nonoperating –40°to 70°C (–104°to 158°F)
1.7.6 Temperature gradient
Operating (max) 20°C per hour (36°F per hour)
Nonoperating (max) 30°C per hour (54°F per hour)
1.7.7 Relative humidity
Operating 8% to 80% noncondensing
Maximum wet bulb 29.4°C (85.0°F)
Nonoperating 5% to 95% noncondensing
Maximum wet bulb 40.0°C (104.0°F)
1.7.8 Altitude
Operating –1,000 ft to 10,000 ft (–305 m to 3,050 m)
Nonoperating –1,000 ft to 40,000 ft (–305 m to 12,200 m)
Medalist 630xe and 850xe ATA Product Manual, June 1996 11

1.7.9 Shock and vibration
Shock measurements are based on an 11 msec, half sine wave shock
pulse that are not to be repeated more than twice per second. The
specifications in the table below are defined as follows:
•Normaloperating—thedrivesustainsno physicaldamage, and reads
and writes data without errors
•Abnormal operating—for a period of not more than 15 minutes dura-
tion at the major resonant frequency, the drive shall sustain no
physical damage, but performance is adversely affected.
•Nonoperating—no power is applied to the drive and the read/write
heads are in the shipping zone; the drive shall sustain no physical
damage.
Normal
operating Abnormal operating Nonoperating
Shock 2.0 Gs 10.0 Gs 75.0 Gs
5–22 Hz vibration 0.020-inch
displacement
peak-to-peak
0.030-inch
displacement
peak-to-peak
0.160-inch
displacement
peak-to-peak
22–300 Hz vibration 1.0 G
peak-to-peak 1.5 Gs peak-to-peak 8.0 Gs peak-to-peak
1.8 Acoustics
Sound pressure is measured at idle from 1 meter above the drive’s top
cover.
Model ST3630A ST3850A
Idle sound pressure, typ 29 dBA 29 dBA
Idle sound pressure, max 33 dBA 33 dBA
12 Medalist 630xe and 850xe ATA Product Manual, June 1996