Seagate Medalist Pro Series,Medalist Pro 6450,Medalist Pro 5040,ST36450A,ST35040A Product Manual
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Medalist Pro Family
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Medalist Pro 6450 (ST36450A)
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Medalist Pro 5040 (ST35040A)
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ATA Interface drives
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Product Manual
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Medalist Family
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Medalist Pro 6450 (ST36450A)
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Medalist Pro 5040 (ST35040A)
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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: 32652-001, Rev. A, February 1997
Seagate, Seagate Technology, the Seagate logo, Medalist and the
Medalist logo are registered trademarks of Seagat e Technology, Inc.
Other product names are trademarks or registered trademarks of their
owners.
Seagate reserves the right to change, wi thout notice, product of ferings
or specifications. No part of this publication may be reproduced in any
form without written permission from Seagate Technology, Inc.
Medalist Pro 6450/5040 Product Manual, February 1997 iii
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Quick specification chart . . . . . . . . . . . . . . . . . . . . . . 3
1.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Formatted Capacity . . . . . . . . . . . . . . . . . . . . . . 5
1.1.1 Standard Configuration . . . . . . . . . . . . . . . . . . 5
1.2 Physical organization . . . . . . . . . . . . . . . . . . . . . 6
1.3 Functional specifications . . . . . . . . . . . . . . . . . . . 6
1.4 Physical dimensions . . . . . . . . . . . . . . . . . . . . . . 7
1.5 Seek time . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.6 Multisegmented cache buffer . . . . . . . . . . . . . . . . . 7
1.7 Start and stop times . . . . . . . . . . . . . . . . . . . . . . 8
1.8 Typical power-up and power-down sequence . . . . . . . . . 8
1.9 Power-up sequence . . . . . . . . . . . . . . . . . . . . . 9
1.9.1 Power-down sequence . . . . . . . . . . . . . . . . . . 9
1.10 Auto-park . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.11 Power specifications . . . . . . . . . . . . . . . . . . . . . 9
1.11.1 Power management . . . . . . . . . . . . . . . . . . . 9
1.11.2 Power consumption . . . . . . . . . . . . . . . . . 11
1.12 Input noise . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.13 Environmental specifications . . . . . . . . . . . . . . . . 11
1.13.1 Ambient temperature . . . . . . . . . . . . . . . . . 11
1.13.2 Temperature gradient . . . . . . . . . . . . . . . . . 12
1.13.3 Altitude . . . . . . . . . . . . . . . . . . . . . . . . 12
1.13.4 Relative humidity . . . . . . . . . . . . . . . . . . . 12
1.14 Shock and vibration . . . . . . . . . . . . . . . . . . . . 12
1.15 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.16 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.17 Agency listings . . . . . . . . . . . . . . . . . . . . . . . 13
1.18 Electromagnetic Compliance for the European Union . . . 14
iv Medalist Pro 6450/5040 Product Manual, February 1997
1.19 FCC verification . . . . . . . . . . . . . . . . . . . . . . 14
2.0 Configuring and mounting the drive . . . . . . . . . . . . . 17
2.1 Handling and static-discharge precautions . . . . . . . . . 17
2.2 I/O cable and connector. . . . . . . . . . . . . . . . . . . 18
2.3 Power connector . . . . . . . . . . . . . . . . . . . . . . . 18
2.4 Options jumper block . . . . . . . . . . . . . . . . . . . . 19
2.4.1 Master/slave configuration . . . . . . . . . . . . . . 20
2.4.2 Alternate capacity jumper . . . . . . . . . . . . . . . . 21
2.4.3 Remote LED connection . . . . . . . . . . . . . . . . 21
2.4.4 Cable-select option . . . . . . . . . . . . . . . . . . . 21
2.5 Mounting the drive . . . . . . . . . . . . . . . . . . . . . . 22
3.0 ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.1 ATA Interface connector pin assignments . . . . . . . . . . 25
3.2 Command set . . . . . . . . . . . . . . . . . . . . . . . . 27
3.2.1 Identify drive command (EC
3.2.2 Set Features command (EF
. . . . . . . . . . . . . 29
H)
) . . . . . . . . . . . . . 32
H
3.2.3 Standby timer timeout period . . . . . . . . . . . . . . 34
3.2.4 Sleep command (99
, E6H) . . . . . . . . . . . . . . 34
H
3.2.5 Automatic Reallocation . . . . . . . . . . . . . . . . . 34
3.2.6 S.M.A.R.T. command (B0
) . . . . . . . . . . . . . . 3 5
H
Appendix. Timing diagrams . . . . . . . . . . . . . . . . . . . . 37
Medalist Pro 6450/5040 Product Manual, February 1997 v
Figures
Figure 1. Typ i cal startup cur rent profile . . . . . . . . . . . . . . . . 8
Figure 2. ATA interface connector . . . . . . . . . . . . . . . . . 18
Figure 3. Connectors . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 4. Configuration settings . . . . . . . . . . . . . . . . . . . 20
Figure 5. Connecting cable-selected drives . . . . . . . . . . . . . 22
Figure 6. Mounting dimensions . . . . . . . . . . . . . . . . . . . 23
Figure 7. ATA interface connector pin assignments . . . . . . . . 26
Figure 8. Programmed I/O timing without IORDY . . . . . . . . . . 37
Figure 9. Programmed I/O timing with IORDY . . . . . . . . . . . 38
Figure 10. Multiword DMA timing . . . . . . . . . . . . . . . . . . 39
vi Medalist Pro 6450/5040 Product Manual, February 1997
Medalist Pro 6450/5040 Product Manual, February 1997 1
Introduction
This manual describes the functional, mechanical and interface specifications for the Medalist
®
Pro 6450 and Medalist Pro 5040 hard disc
drives. The drives are referred to throughout this manual by their model
numbers, ST36450A for the Medalist Pro 6450 and ST35040A for the
Medalist Pro 5040.
Seagate
®
desktop products take a step into the future with the ST36450A
and ST35040A. These drives feature MR heads and PRML recording
technology, Fast ATA-2 performance, segmented cache, embedded
servo technology, low noise, power management and S.M.A.R.T. capabilities.
The ST36450A contains five discs and the ST35040A contains four
discs. These drives use MR heads and PRML recording te chnology that
provide the drives with increased areal densit y. This means that more
data can be stored on each disc.
Fast ATA-2 performance means that the drives support P IO mode 4,
multiword DMA mode 2 transfer modes and multiple block read/write.
When the host chooses either transfer mode, the driv es provide burs ttransfer rates of up to 16.6 Mbytes per second. The multiple block
read/write feature allows the drives to store several blocks of data in
cache and transfer them in a single burst.
These drives use a 512-Kbyte segmented cache. Segmenting the cache
provides a designated area where blocks of contiguous read or write data
can be staged for transfer in a single burst.
The ST36450A and ST35040A drives hav e other features that ensure
fast data throughput. Embedded servo technology allows the drives to
position the heads for data retrieval efficiently and accurately while
eliminating the periodic thermal recalibration t hat can interrupt during
data transfers. These drives also use a 16-bit microprocessor and an
intelligent controller t hat provides data streaming: direct data transfers
between the drive and the host without microprocessor intervention.
These features allow for a sus tained data-transfer rate that facilitates
video playback and other multimedia operations.
These drives support Active, Idle and Standby power-management
modes. Power-saving modes can be controlled by the host computer.
Standby mode reduces power consumption to 1 watt (typical) while
retaining drive accessibility.
Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.) is
available on these drives. This feature is discussed on page 35. To use
the feature, you must have a BIOS, a software driver or application
software that supports S.M.A.R.T.
2 Medalist Pro 6450/5040 Product Manual, February 1997
The ATA commands with specific applications for these drives and the
Seagate-unique commands the drives use are discussed in Section 3.0
on page 25. A complete list of the commands the drives support are found
in the table on page 27.
The following is a summary of the drives’ features:
Capacity
• 6. 4 and 5.0 Gbytes formatted
• LBA translation support
• Av ailable software driver that surpasses the 528-Mbyte barrier and
4,096 cylinder barrier limited by some system BIOSs
• Av ailable software driver that provides expanded 32-bit disk access
support for Windows 3.
x
Performance
• Fast ATA-2 (Supports multiword DMA mode 2 and P IO mode 4 for up
to 16.6-Mbyte-per-second burst transfer rates. Supports multiple
block read/write.)
• 512-K byte segmented buffer
• 12-msec average read seek time
• 13. 5-msec average write seek time
• Data streaming
Energy efficiency
• Activ e, Idle and Standby power-management modes
• 2 watt typical power dissipation rating in Standby mode
Medalist Pro 6450/5040 Product Manual, February 1997 3
Quick specification chart
The following table serves as a quick reference for the drives’ performance specifications. These and other specifications are discussed in
“Specifications” on page 5.
Drive specification ST36450A ST35040A
9
Guaranteed capacity (Gbytes) (×10
Guaranteed sectors 12,594,960 9,782,640
Bytes per sector 512 512
Sectors per track 63 63
Logical read/write heads 15 15
Logical cylinders 13,328 10,352
Physical cylinders 6,536 6,536
Physical read/write heads 10 8
Physical discs 5 4
Areal density (Mbits per square inch) 928.8 928.8
bytes) 6.5 5.0
Data zones 19 19
Recording density (bits per inch) 138,011 138,011
Track density (tracks per inch) 6,730 6,730
Spindle speed (RPM) 5,397 5,397
Track-to-track se ek time (msec typical) 2.0 2.0
Average read seek time (msec typical) 9.5 9.5
Average write seek time (msec typical) 10.0 10.0
Full-stroke seek time (msec typical) 20 20
Average latency (msec) 5.58 5.58
Internal data-transfer rate
(Mbits per sec max) 63 to 116
63 to 116
External transfer rate (Mbytes per sec max) 16.6 16.6
Cache buffer (Kbytes) 512 512
ECC on-the-fly (bits) 65 65
continued
4 Medalist Pro 6450/5040 Product Manual, February 1997
continued from previous page
Drive specification ST36450A ST35040A
Height (inches max) 1.027 1.027
Width (inches max) 4.023 4.023
Depth (inches max) 5.787 5.787
Typical weight (lb) 1.5 1.5
Spinup current (max) 3.0A 3.0A
Seek power (typical) 9.8W 9.8W
Read/Write power and current (typical) 7.8W 7.8W
Idle total power (typical) 7.8W 7.8W
Standby/Sleep total power (typical) 2.0W 2.0W
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
Medalist Pro 6450/5040 Product Manual, February 1997 5
1.0 Specifications
1.1 Formatted Capacity
Medalist Pro drives are low-level formatted at the factory. You cannot
low-level format them.
These drives suppo rt cylinder-he ad-sec tor (CHS) and log ical-bloc k addre ssing (LBA) translatio n modes . You can use the Ident ify drive (EC
to verify the address modes the drives support, the number of cylinders,
sectors per track, t ot al num ber of sectors, heads and other paramete rs . Th e
Identify drive para meters are listed in Sect ion 3.2.1 on pa ge 29.
Notes:
. DOS cannot acce ss more than 2. 147 G bytes per partition. Yo u
1
must create multiple pa rtitions to access the drive’s full ca pacity.
One Mbyte equals one million bytes.
2.
. If the system BIOS does not support more than 4,096 cylin-
3
ders, it can cause the computer to hang during startup, or it
can truncate or wrap the cylinders. To resolve this issue, the
system BIOS needs to be modified: the cylinder register or
variable must be increased from 12-bits to 16-bits to accommodate more than 4,096 cylinders.
) comma nd
H
1.1.1 Standard Configuration
ST36450A CHS LBA
Cylinders 13,328
Heads 15
Sectors 63
Guaranteed sectors 12,594,960 12,594,960
Guaranteed capacity (Gbytes) 6.4 6.4
ST35040A CHS LBA
Cylinders 10,352
Heads 15
Sectors 63
Guaranteed sectors 9,782,640 9,782,640
Guaranteed capacity (Gbytes) 5.0 5.0
6 Medalist Pro 6450/5040 Product Manual, February 1997
1.2 Physical organization
ST36450 ST35040A
Read/write heads 10 8
Discs 5 4
1.3 Functional specifications
ST36450A ST35040A
Interface ATA ATA
Recording method PRML (8/9 ) PRML (8/9)
External data burst transfer rate:
DMA mode 2 (Mbytes per sec)
PIO mode 4 (Mbytes per sec)
Internal data-transfer rate
(Mbits per sec)
Spindle speed (RPM) 5,397 ± 0.5% 5,397 ± 0.5%
Cache size (Kbytes) 512 512
Logical cylinders 13,328 10,352
Physical cylinders 6,536 6,536
Bytes per sector 512 512
Areal density (Mbytes/sq. in) 928.8 928.8
Data zones 19 19
Recording density, max (BPI) 138,011 138,011
Track density (TPI) 6, 730 6,730
16.6
16.6
63 to 116 63 to 116
16.6
16.6
See Figure 10 on page 39 for multiword DMA timing specifi ca-
Note.
tions. See Figure 8 on page 37 and Figure 9 on page 38 for PIO
timing specifications.
Medalist Pro 6450/5040 Product Manual, February 1997 7
1.4 Physical dimensions
The mounting dimensions are shown in Figure 6 on page 23.
Height, max 1.027 inch (26.09 mm)
Width, max 4.025 inches (102.2 mm)
Depth, max 5.787 inches (146.99 mm)
Weight 1.5 lb (0.68 Kg)
1.5 Seek time
Seek value is the interval between the time the actuator begins to move
and the time the head has settled over the target track. Seek time is a
true statistical average of at least 10,000 measurements of seek time.
All measurements are taken under nominal conditions of temperature
and voltage with the drive mounted horizontally. The specifications in the
table below are defined as follows:
• Track -to-track seek time is the average of all possible s ingle-track
seeks in both directions.
• Average seek time is measured by executing seeks in both directions
between random cylinders.
• Ful l-stroke seek time is half the time needed to seek from track 0 to
the maximum track and back to track 0.
Track-to-track
seek time (typ)
2.0 msec seek
2.5 msec read
3.5 msec write
Host overhead varies between systems and cannot be specified.
Note.
Drive internal overhead is measured by issuing a no-motion seek.
Overhead is typically less than 0.5 msec.
Average/typical
seek time
9.5 msec read
10.0 msec write
Full-stroke
seek time (typ)
20.0 msec seek
22.0 msec read
23.5 msec write
Average
latency
5.58 msec
1.6 Multisegmented cache buffer
The Medalist Pro ST36450A and ST35040A drives are available with a
512-Kbyte, multisegmented cache buffer that improves performance by
reducing access times.
Read look-ahead.
logical sectors, after the last requested sector, into a buffer befor e the
computer requests the additional sectors. The c ache buffer stor es data
The drive uses the read segments to store additional
8 Medalist Pro 6450/5040 Product Manual, February 1997
from the start of a read until the buffer segment is full or until another
command is received.
Write immediate
. The drive uses the write segment to store write
commands and data. After the drive receives all of the data for the
command, it issues a write complete. Then, the drive writes the data to
the disc.
Write merging.
The drive accepts contiguous write commands and
executes them as one command.
1.7 Start and stop tim es
Within 20 seconds after power is applied, the drive is ready. Within 15
seconds after power is removed, the drive spindle stops rotating.
1.8 Typical power-up and power-down sequence
This section describes typical power-up and power-down sequences to
assist you in evaluating the dri ve’s performance. They are not performance specifications. A typical startup current profile is shown in Figure 1.
Startup current profiles are unique for each drive.
Current (Amps)
3.5
3.0
2.5
2.0
1.5
1.0
0
0
Figure 1. Typical startup current p rofi l e
4
2
6
8
10
12
Time (seconds)
14
16
18
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