seagate ST9300AG, ST9240AG, ST9150AG User manual

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ST9300 Family:

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ST9300AG, ST9240AG

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ST9150AG

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AT Interface Drives

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Product Manual

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ST9300 Family:

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ST9300AG, ST9240AG

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ST9150AG

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AT Interface Drives

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Product Manual

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September 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.

ST9300 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

1.11.4 Voltage tolerance . . . . . . . . . . . . . . . . . . . 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 ST9300 family drives . . . . . . . . . . . . . 11

iv ST9300 Family Product Manual, Rev. B

2.3 Master/slave configuration . . . . . . . . . . . . . . . . . . 13

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 . . . . . . . . . . . . . . . . . 26

3.3.3 Rest/Resume commands . . . . . . . . . . . . . . . . 27

ST9300 Family Product Manual, Rev. B v

Figures

Figure 1. Typical startup and operation current profile for

the ST9300 family drives . . . . . . . . . . . . . . . . . 8

Figure 2. Mounting dimensions for the ST9300 family drives . . . . 12

Figure 3. Connector setup for the ST9300 family drives . . . . . . 14

Figure 4. ATA interface connector for the ST9300 family drives . . . 17

ST9300 Family Product Manual, Rev. B 1

1.0 Drive specifications

1.1 Formatted capacity

ST9300AG ST9240AG ST9150AG

Guaranteed Mbytes (1 Mbyte = 10

Guaranteed sectors 512,100 411,008 256,009 Bytes per sector 512 512 512

bytes)

262.1 210.4 131.0

1.2 Physical organization

ST9300AG ST9240AG ST9150AG

Read/Write heads 4 4 2 Discs 2 2 1

1.3 Logical organization

The ST9300 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 64

) × (

heads

) ×

(cylinder

s) ≤

total sectors per drive

ST9300AG ST9240AG ST9150AG

Read/Write heads (max) 16 16 16 Cylinders (max) 1,024 1,024 1,024

1.4 Default logical geometry

ST9300AG ST9240AG ST9150AG

Sectors per track 60 52 47 Read/Write heads 15 8 13 Cylinders 569 988 419

2 ST9300 Family Product Manual, Rev. B

1.5 Functional specifications

Interface AT Recording method RLL (1,7) Recording density (BPI) 59,124 Flux density (FCI) 44,360 Track density (TPI) 3,282 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

3,980

29.7

8.0 (PIO mode 3 with IORDY)

13.3 (multiword DMA mode 2)

1.6 Physical dimensions

ST9300AG ST9240AG ST9150AG

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)

5.4 (0.154)

0.504 (12.80)

2.760 (70.10)

4.010 (101.85)

5.4 (0.154)

0.504 (12.80)

2.760 (70.10)

4.010 (101.85)

5.4 (0.154)

* 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

ST9300 Family Product Manual, Rev. B 3

at sea level and 25°C ambient temperature. 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 average is determined by measuring 100 full-stroke seeks in both directions.

Seek type Typical read

(msec)

Track-to-track 6 7 Average 16 20 Full-stroke 26 28 Average latency: 7.54 msec

Typical write (msec)

1.8 Spinup time

Power-on to Ready (sec) 5* typical Standby to Ready (sec) 3 typical

* The drive responds to selection and status commands within

2 seconds of 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

4 ST9300 Family Product Manual, Rev. B

1.10 Environment

1.10.1 Acoustics

Drive acoustics are measured as sound pressure 1 meter from the drive.

Mode Typical Maximum

Idle Mode (dBA) 24 28 Seek (dBA) 26 30

1.10.2 Ambient temperature

Operating 5° to 55°C (41° to 131°F) Nonoperating –40° to 70°C (–40° to 158°F)

1.10.3 Temperature gradient

Operating 30°C / hr (54°F / hr) max, without condensation Nonoperating 30°C / hr (54°F / hr) max, without condensation

1.10.4 Relative humidity

Operating 8% to 80% noncondensing (10% per hour max)

Max. wet bulb temperature: 29.4°C (85°F)

Nonoperating 8% to 90% noncondensing (10% per hour max)

Max. wet bulb temperature: 40°C (104°F)

1.10.5 Altitude

Operating –1,000 ft to 10,000 ft (–304 m to 3,048 m) Nonoperating –1,000 ft to 40,000 ft (–304 m to 12,192 m)

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