seagate ST9140AG, ST9190AG User manual
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ST9190 Family:
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ST9190AG
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ST9140AG
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AT Interface Drives
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Product Manual
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ST9190 Family:
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ST9190AG
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ST9140AG
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AT Interface Drives
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Product Manual
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1994 Seagate Technology, Inc. All rights reserved
Publication Number: 36230-001, Rev. B
July 1994
Seagate
®
, Seagate Technology® and the Seagate 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.
ST9190 Family Product Manual, Rev. B iii
Contents
1.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Formatted capacity . . . . . . . . . . . . . . . . . . . . . 1
1.2 Physical organizat ion . . . . . . . . . . . . . . . . . . . . 1
1.3 Logical organization . . . . . . . . . . . . . . . . . . . . . 1
1.4 Default logical geometry . . . . . . . . . . . . . . . . . . . 1
1.5 Functional specifications . . . . . . . . . . . . . . . . . . 2
1.6 Physical dimens ions . . . . . . . . . . . . . . . . . . . . . 2
1.7 Seek time . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.8 Spinup time . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.9 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.10 Environment . . . . . . . . . . . . . . . . . . . . . . . . 4
1.10.1 Acoustics . . . . . . . . . . . . . . . . . . . . . . . 4
1.10.2 Ambient temperature . . . . . . . . . . . . . . . . . 4
1.10.3 Temperature gradient . . . . . . . . . . . . . . . . . 4
1.10.4 Relative humidity . . . . . . . . . . . . . . . . . . . 4
1.10.5 Altitude . . . . . . . . . . . . . . . . . . . . . . . . 4
1.10.6 Shock . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.10.7 Vibration . . . . . . . . . . . . . . . . . . . . . . . . 5
1.11 Power specifications . . . . . . . . . . . . . . . . . . . . 6
1.11.1 Power-management modes . . . . . . . . . . . . . . 6
1.11.2 Power consumption . . . . . . . . . . . . . . . . . . 8
1.11.3 Conducted Noise . . . . . . . . . . . . . . . . . . . 9
1.12 UL/CSA listing . . . . . . . . . . . . . . . . . . . . . . . 9
1.13 FCC verification . . . . . . . . . . . . . . . . . . . . . . 9
2.0 Drive mounting and configuration . . . . . . . . . . . . . . 11
2.1 Handling and static-discharge precautions . . . . . . . . . 11
2.2 Mounting the ST9190 family drives . . . . . . . . . . . . . 11
2.3 Master/slave configuration . . . . . . . . . . . . . . . . . . 13
iv ST9190 Family Product Manual, Rev. B
2.4 Remote LED . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.5 ECC testing . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.0 ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1 ATA interface connector . . . . . . . . . . . . . . . . . . . 17
3.2 ATA interface signals and connector pins . . . . . . . . . . 18
3.2.1 AT bus signal levels . . . . . . . . . . . . . . . . . . 19
3.3 ATA interface commands . . . . . . . . . . . . . . . . . . 20
3.3.1 Identify Drive command . . . . . . . . . . . . . . . . 22
3.3.2 Set Features command . . . . . . . . . . . . . . . . . 25
ST9190 Family Product Manual, Rev. B v
Figures
Figure 1. Typical current profile for the ST9190 family drives . . . . 8
Figure 2. Mounting dimensions for the ST9190 family drives . . . . 12
Figure 3. Connector setup for the ST9190 family drives . . . . . . 14
Figure 4. ATA interface connector for the ST9190 family drives . . 17
ST9190 Family Product Manual, Rev. B 1
1.0 Drive specifications
1.1 Formatted capacity
ST9190AG ST9140AG
Guaranteed Mbytes
(1 Mbyte = 10
Guaranteed sectors 335,232 249,900
Bytes per sector 512 512
6
bytes)
171.6 127.9
1.2 Physical organization
ST9190AG ST9140AG
Read/Write heads 4 4
Discs 2 2
1.3 Logical organization
The ST9190 family drives support all head, cylinder and sector geometries, subject to the maximums specified below, and to the following
condition:
sectors
(
Sectors per track (max) 64 64
) × (
heads
) ×
(cylinder
s) ≤
total sectors per drive
ST9190AG ST9140AG
Read/Write heads (max) 16 16
Cylinders (max) 1,024 1,024
1.4 Default logical geometry
ST9190AG ST9140AG
Sectors per track 24 17
Read/Write heads 16 15
Cylinders 873 980
2 ST9190 Family Product Manual, Rev. B
1.5 Functional specifications
Interface AT
Recording method RLL (1,7)
Recording density (BPI) 57,120
Flux density (FCI) 42,840
Track density (TPI) 2,760
Spindle speed (RPM)
( ± 0.5%)
Internal data transfer rate
(Mbits per sec max—ZBR)
I/O data transfer rate
(Mbytes per sec max)
Interleave 1:1
Cache buffer (Kbytes) 120
3,546
22.13
5.2
1.6 Physical dimensions
ST9190AG ST9140AG
Height (max) inches
(mm)
Width (max) inches
(mm)
Depth (max) inches*
(mm)
Weight (typical) ounces
(kg)
0.504
(12.80)
2.760
(70.10)
4.010
(101.85)
5.7
(0.161)
0.504
(12.80)
2.760
(70.10)
4.010
(101.85)
5.7
(0.161)
* Excludes I/O connector pins, which may extend up to 0.010 inches be-
yond the edge of the head/disc assembly.
1.7 Seek time
All seek times are measured using a 25-MHz 486 AT computer (or faster)
with a 8.3-MHz I/O bus. The measurements are taken with nominal power
at sea level and 25°C ambient temperature. The specifications in the
table on page 3 are defined as follows:
ST9190 Family Product Manual, Rev. B 3
• 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 average is determined by measuring 100
full-stroke seeks in both directions.
Typical read
Seek type
Track-to-track 6 7
Average 16 20
Full-stroke 26 28
Average latency: 8.46 msec
(msec)
Typical write
(msec)
1.8 Spinup time
Power-on to Ready (sec) 5* typical
Standby to Ready (sec) 3 typical
* The drive will respond to selection and status commands within 2
seconds after power-up.
1.9 Reliability
Nonrecoverable read errors 1 per 1013 bits read
Mean time between failures 300,000 power-on hours
(nominal power, at sea level,
25°C ambient temperature)
Preventive maintenance None required
Mean time to repair 10 minutes
Service life 5 years
1.10 Environment
1.10.1 Acoustics
Drive acoustics are measured as sound pressure 1 meter from the drive.
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