Seagate ST94811AB User Manual

Momentus Blade Server

ST94811AB

Momentus Blade Server

ST94811AB

Publication number: 100339697, Rev. A

June 2004

Seagate and Seagate Technology are registered tradem arks of Seagate Technology LLC. DiscWizard, SeaTools, SeaFONE, SeaBOARD, SeaTDD, 3D Defense System and the Wave logo are either registered trademarks or trademarks of Seagate Technology LLC. Other product names are registered trademarks or trademarks of their owners.

Seagate reserves the right to ch ange, witho ut notice, product offerings or spec ifications . No

part of this publication may be reproduc ed in any form w ithout wr itte n per mi ssio n of Seagate

Technology LLC.

Revision status summary sheet

Revision Date Sheets Affected

Rev. A 06/22/04 All.

Contents

1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 Specification summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.4 Physical organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.5 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.6 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.7 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.8 Time to ready. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.9 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.9.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.9.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.9.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.10 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.10.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.10.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.10.3 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.10.4 Altitude. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.10.5 Shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.10.6 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.11 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.12 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.13 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.14 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.14.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.14.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.14.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.1 Handling and static discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2 Jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2.1 Master/slave configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2.2 Cable-select option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.3 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.0 ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.1 ATA interface signals and connector pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.1.1 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.1.2 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.1.3 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.1.4 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

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List of Figures

Figure 1. Momentus disc drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 2. Typical 5V startup and operation current profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 3. Jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 4. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

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viii Momentus Blade Server Product Manual, Rev. A

1.0 Introduction

This manual desc ribes the functio nal, mechanical an d interface speci fications for the Seagate® Momentus™

Blade Server drive:

• ST94811AB

These drives provide the following key features:

• 5,400-RPM spindle speed and 8 Mbytes combine for superior performance.

• Quiet operation. Fluid Dynamic Bearing (FDB) motor.

• High instantaneous (burst) data transfer rates (up to 100 Mbytes per second) using Ultra DMA mode 5.

• Giant magnetoresistive (GMR) recording heads and EPRML technology, which provide the drives with increased areal density.

• State-of-the-art cache and on-the-fly error-correction algorithms.

• Full-track multiple-sector transfer capability without local processor intervention.

• 800 Gs nonoperating shock and 225 Gs operating shock.

• SeaTools™ diagnostic software performs a drive self-test that eliminates unnecessary drive returns.

• The 3D Defense System™, which includes Drive Defense, Data Defense, and Diagnostic Defense, offers the industry’s most comprehensive protection for disc drives.

• Support for S.M.A.R.T. drive monitoring and reporting.

• Support for Read Multiple and Write Multiple commands.

• Support for autodetection of master/slave drives that use cable select (CSEL).

Figure 1. Momentus disc drive

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2.0 Drive specifications

Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate ST94811AB model drives.

2.1 Specification summary

The specificatio ns lis ted in th is table ar e for quick reference. F or details on specification me as ur eme nt o r de finition, see the appropriate section of this manual.

T able 1: Specifications

Drive specification ST94811AB

Formatted Gbytes (512 bytes/sector) 40 Guaranteed sectors 78,140,160 Bytes per sector 512 Physical read/write heads 2 Discs 1 Cache (Mbytes) 2 Recording density, BPI (bits/inch max) 642,000 Track density, TPI (tracks/inch max) 100,780 Areal density (Mbits/inch Spindle speed (RPM) 5,400 Internal data transfer rate OD (Mbytes/sec max) 48.25 Sustained data transfer rate OD (Mbytes/sec) 34.5 I/O data transfer rate (Mbytes/sec max) 100 ATA data transfer modes supported PIO modes 0–4; Multiword DMA modes 0–2; Ultra DMA modes 0–5 Height 9.5 +/–0.2 mm (0.374 +/–.0078 inches) Width 69.85 +/–0.25 mm (2.75 +/–0.0098 inches) Length 100.2 +/–0.25 mm (3.945 +/–0.0098 inches) Weight (typical) 99 grams (0.218 lb.) Average latency (msec) 5.6 Power-on to ready (sec typical) 3.9 Standby to ready (sec typical) 2.6 sec Startup current 5V (peak) 1.2 amps Track-to-track seek time (msec typical) 1.5 (read), 2.0 (write) Average seek time (msec typical) 12.0 Average seek, read (msec typical) 12.0 Average seek, write (msec typical) 14.0

max) 65

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Table 1: Specifications (Continued)

Drive specification ST94811AB

Full-stroke seek (msec) 22 (typical); 26 (max) Seek power (typical) 2.4 watts Read/write power (typical) 2.4 watts Idle, performance mode (typical) 2.5 watts Standby mode 0.36 watts (typical)** Sleep mode 0.36 watts (typical)** Voltage tolerance (including noise) 5V ± 5% Ambient temperature 5° to 55°C (operating)

Temperature gradient (°C per hour max) 20°C (operating)

Relative humidity (noncondensing) 5% to 90% (operating)

Relative humidity gradient 30% per hour max Wet bulb temperature (°C max) 33°C (operating)

Altitude, operating –192.12 m to 3,048 m (–650 ft to 10,000+ ft) Altitude, nonoperating (below mean sea level, max) –304.8 m to 12,192 m (–1,000 ft to 40,000+ ft) Shock, operating (Gs max at 2 msec) 225 Shock, nonoperating (Gs max at 2 msec) 800 Shock, nonoperating (Gs max at 1 msec) 800 Shock, nonoperating (Gs max at 0.5 msec) 400 Vibration, operating (max displacement may apply below 10

hz) Vibration, nonoperating (max displacement may apply below

22 hz) Drive acoustics, sound power (bels) Idle* 2.3 (typical)

Performance seek 3.0 (typical)

Nonrecoverable read errors Mean time between failures (power-on hours) 500,000 at 25°C (8,760 POH/year)

Load/Unload (U/UL) cycles 25°C, 50% relative humidity

32°C, 80% relative humidity 5°C, 80% relative humidity 5°C, 10% relative humidity 55°C, 16% relative humidity

Service life 5 years Warranty 1 year

–40° to 65°C (nonoperating)

30°C (nonoperating)

5% to 95% (nonoperating)

40°C (nonoperating)

1.0 Gs (0 to peak, 5–500 Hz)

5.0 Gs (0 to peak, 5–500 Hz)

2.5 (max)

3.2 (max)

1 per 1014 bits read

Max case temperature: 40°C

300,000 software-controlled power on/off cycles 20,000 hard power on/off cycles

100,000 software-controlled power on/off cycles 20,000 hard power on/off cycles

*During periods of drive idle, some o ffline activity may occur according to the S. M.A.R.T. specification, which may increase acoust ic and

power to operational levels.

**Typical notebooks will pull power to the drive when entering S3 and S4; while in the S3 and S4 states, drive sleep and drive standby modes

will not contribute to battery power consumption.

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