Product Manual
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Seagate reserves the right to change, without written permission from Seagate Technology, Inc. D, June 1999 Seagate, Seagate Technology, the Seagate logo and U4 are registered trademarks or trademarks of their owners. Other product names are either trademarks or registered trademarks of this publication may be reproduced in any form without notice, product offerings or specifications. No part of Seagate Technology, Inc. ©1999 Seagate Technology, Inc. All rights reserved Publication Number: SG35116-001, Rev.
Seagate reserves the right to change, without written permission from Seagate Technology, Inc. D, June 1999 Seagate, Seagate Technology, the Seagate logo and U4 are registered trademarks or trademarks of their owners. Other product names are either trademarks or registered trademarks of this publication may be reproduced in any form without notice, product offerings or specifications. No part of Seagate Technology, Inc. ©1999 Seagate Technology, Inc. All rights reserved Publication Number: SG35116-001, Rev.
Product Manual
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...1.7 Power specifications 7 1.7.1 Power consumption 7 1.7.2 Conducted noise 10 1.7.3 Voltage tolerance 10 1.7.4 Power-management modes 10 1.8 Environmental tolerances 11 1.8.1 Ambient temperature 11 1.8.2 Temperature gradient 11 1.8.3 Humidity 11 1.8.4 Altitude 12 1.8.5 Shock 12 1.8.6 Vibration 12 1.9 Drive acoustics 13 ...1.10 Electromagnetic susceptibility 14 1.11 Reliability 14 1.12 Agency certification 14 1.12.1 Safety certification 14 1.12.2 Electromagnetic compatibility 14 1.12.3 FCC verification 15 U4 Family Product Manual, Rev...
...1.7 Power specifications 7 1.7.1 Power consumption 7 1.7.2 Conducted noise 10 1.7.3 Voltage tolerance 10 1.7.4 Power-management modes 10 1.8 Environmental tolerances 11 1.8.1 Ambient temperature 11 1.8.2 Temperature gradient 11 1.8.3 Humidity 11 1.8.4 Altitude 12 1.8.5 Shock 12 1.8.6 Vibration 12 1.9 Drive acoustics 13 ...1.10 Electromagnetic susceptibility 14 1.11 Reliability 14 1.12 Agency certification 14 1.12.1 Safety certification 14 1.12.2 Electromagnetic compatibility 14 1.12.3 FCC verification 15 U4 Family Product Manual, Rev...
Product Manual
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...drives with increased areal density • Support for S.M.A.R.T. U4 Family Product Manual, Rev. D 1 Introduction This manual describes the functional, mechanical and interface specifications... for excellent desktop performance • High instantaneous (burst) data-transfer rates (up to 66.6 Mbytes per second) using Ultra DMA mode 4 • 300 Gs nonoperating shock • Full-track multiple-sector transfer capability without local processor intervention • State-of master/slave drives... that use cable select (CSEL) These drives provide the ...
...drives with increased areal density • Support for S.M.A.R.T. U4 Family Product Manual, Rev. D 1 Introduction This manual describes the functional, mechanical and interface specifications... for excellent desktop performance • High instantaneous (burst) data-transfer rates (up to 66.6 Mbytes per second) using Ultra DMA mode 4 • 300 Gs nonoperating shock • Full-track multiple-sector transfer capability without local processor intervention • State-of master/slave drives... that use cable select (CSEL) These drives provide the ...
Product Manual
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... or definition, see the appropriate section of this table are for quick reference. Drive Specification ST32112A ST34311A ST36421A ST38421A Guaranteed Mbytes (×106 bytes) 2,160 4,320 6,448 8,440 Guaranteed sectors 4,225,536 8,452,080 12,596,850 16,498,944 Bytes per sector 512 ... modes 0-2 Ultra DMA modes 0-4 Cache buffer (Kbytes) 256 Height (mm max) 26.1 Width (mm max) 102 Length (mm max) 147.0 Weight (typical) 580 grams (1.2 lb) 2 U4 Family Product Manual, Rev. D Specification summary table The specifications listed in this manual.
... or definition, see the appropriate section of this table are for quick reference. Drive Specification ST32112A ST34311A ST36421A ST38421A Guaranteed Mbytes (×106 bytes) 2,160 4,320 6,448 8,440 Guaranteed sectors 4,225,536 8,452,080 12,596,850 16,498,944 Bytes per sector 512 ... modes 0-2 Ultra DMA modes 0-4 Cache buffer (Kbytes) 256 Height (mm max) 26.1 Width (mm max) 102 Length (mm max) 147.0 Weight (typical) 580 grams (1.2 lb) 2 U4 Family Product Manual, Rev. D Specification summary table The specifications listed in this manual.
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D 3 Drive Specification ST32112A ST34311A ST36421A ST38421A Track-to-track seek time (msec typical) 2.0 (read), 2.75 (write) Average seek time (msec typical) 10.5 (read), 11.5 (write) Full-stroke seek time (msec typical) ... 2 msec) operating nonoperating 63 Gs 300 Gs Vibration, operating 0.5 Gs (0 to 95% (nonop.) Relative humidity gradient 30% per hour max) 20°C Relative humidity (op. U4 Family Product Manual, Rev. and nonop.) 5% to 90% (op.) 5% to peak, 5-350 Hz)
D 3 Drive Specification ST32112A ST34311A ST36421A ST38421A Track-to-track seek time (msec typical) 2.0 (read), 2.75 (write) Average seek time (msec typical) 10.5 (read), 11.5 (write) Full-stroke seek time (msec typical) ... 2 msec) operating nonoperating 63 Gs 300 Gs Vibration, operating 0.5 Gs (0 to 95% (nonop.) Relative humidity gradient 30% per hour max) 20°C Relative humidity (op. U4 Family Product Manual, Rev. and nonop.) 5% to 90% (op.) 5% to peak, 5-350 Hz)
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4 U4 Family Product Manual, Rev. D Drive Specification ST32112A ST34311A ST36421A ST38421A Vibration, nonoperating 5 Gs (0 to peak, 5-350 Hz) Drive acoustics Sound power Idle mode Seek mode 3.3 (typical), 3.7(max) 3.9 (typical), 4.3 (max) Nonrecoverable read errors 1 per 1013 bits read Mean time between failures (power-on hours) 400,000 Contact start-stop cycles (25°C, 40% relative humidity) 50,000 Service life (years) 5
4 U4 Family Product Manual, Rev. D Drive Specification ST32112A ST34311A ST36421A ST38421A Vibration, nonoperating 5 Gs (0 to peak, 5-350 Hz) Drive acoustics Sound power Idle mode Seek mode 3.3 (typical), 3.7(max) 3.9 (typical), 4.3 (max) Nonrecoverable read errors 1 per 1013 bits read Mean time between failures (power-on hours) 400,000 Contact start-stop cycles (25°C, 40% relative humidity) 50,000 Service life (years) 5
Product Manual
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... sectors as defined above. 1.2 Physical organization Drive Model Read/Write heads (MR) ST38421A 4 ST36421A 3 ST34311A 2 ST32112A 1 Number of discs 2 2 1 1 U4 Family Product Manual, Rev. D 5 1.0 Drive specifications Unless otherwise noted, all specifications are consecutively numbered from 0 to indicate the U4 ST38421A, ST36421A, ST34311A and the ST32112A. 1.1 Formatted capacity Drive Model Guaranteed Mbytes (1 Mbyte = 106 bytes) ST38421A 8,440 ST36421A 6,448 ST34311A 4,320...
... sectors as defined above. 1.2 Physical organization Drive Model Read/Write heads (MR) ST38421A 4 ST36421A 3 ST34311A 2 ST32112A 1 Number of discs 2 2 1 1 U4 Family Product Manual, Rev. D 5 1.0 Drive specifications Unless otherwise noted, all specifications are consecutively numbered from 0 to indicate the U4 ST38421A, ST36421A, ST34311A and the ST32112A. 1.1 Formatted capacity Drive Model Guaranteed Mbytes (1 Mbyte = 106 bytes) ST38421A 8,440 ST36421A 6,448 ST34311A 4,320...
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The specifications in both directions. All times are defined as follows: • Track-to-track seek time is an average of all possible single-track seeks in the table below are measured using drive diagnostics. 6 U4 Family Product Manual, Rev. D 1.3...I/O data-transfer rate (Mbytes /sec max) 16.6 (PIO mode 4) 66.6 (Ultra DMA mode 4) Interleave 1:1 Cache buffer (Kbytes) 256 1.4 Physical characteristics Drive Specification ST38421A, ST36421A, ST34311A, ST32112A Maximum height (mm) (inches) 26.1 1.028 Maximum width (mm) (inches) 101.8 4.020 Maximum length (mm) (inches) 147...
The specifications in both directions. All times are defined as follows: • Track-to-track seek time is an average of all possible single-track seeks in the table below are measured using drive diagnostics. 6 U4 Family Product Manual, Rev. D 1.3...I/O data-transfer rate (Mbytes /sec max) 16.6 (PIO mode 4) 66.6 (Ultra DMA mode 4) Interleave 1:1 Cache buffer (Kbytes) 256 1.4 Physical characteristics Drive Specification ST38421A, ST36421A, ST34311A, ST32112A Maximum height (mm) (inches) 26.1 1.028 Maximum width (mm) (inches) 101.8 4.020 Maximum length (mm) (inches) 147...
Product Manual
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...back to the manner in which these specifications. 1.6 Start/stop (sec) 8 (typical) 7 (typical) 10 (typical) 1.7 Power specifications The drive receives DC power (+5V or +12V) through a four-pin standard drive power connector. 1.7.1 Power consumption Power requirements for the drives are designed to -track 2.0 2....time needed to seek from these drives are formatted, benchmark tests that include command overhead or measure logical seeks may produce results that the drive spindle reaches operating speed. However, due to the first data cylinder. U4 Family Product Manual, Rev. ...
...back to the manner in which these specifications. 1.6 Start/stop (sec) 8 (typical) 7 (typical) 10 (typical) 1.7 Power specifications The drive receives DC power (+5V or +12V) through a four-pin standard drive power connector. 1.7.1 Power consumption Power requirements for the drives are designed to -track 2.0 2....time needed to seek from these drives are formatted, benchmark tests that include command overhead or measure logical seeks may produce results that the drive spindle reaches operating speed. However, due to the first data cylinder. U4 Family Product Manual, Rev. ...
Product Manual
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8 U4 Family Product Manual, Rev. This mode is not typical and is provided for each 10 reads) and 20 percent drive inactive. • Idle mode power Idle mode power is measured using only random seeks with the heads in powerdown mode. D • Seek Mode During seek ...mode, the read/write actuator arm moves toward a specific position on a 16-sector write followed by a 32-msec delay, then a 16-sector read followed by a 32-msec delay. • Operating power and current Operating power is measured with the drive up to speed, with servo electronics active and with read...
8 U4 Family Product Manual, Rev. This mode is not typical and is provided for each 10 reads) and 20 percent drive inactive. • Idle mode power Idle mode power is measured using only random seeks with the heads in powerdown mode. D • Seek Mode During seek ...mode, the read/write actuator arm moves toward a specific position on a 16-sector write followed by a 32-msec delay, then a 16-sector read followed by a 32-msec delay. • Operating power and current Operating power is measured with the drive up to speed, with servo electronics active and with read...
Product Manual
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... 300 Gs (based on half-sine shock pulses of 2 msec duration). 1.8.6 Vibration All vibration specifications assume that the drive is mounted securely with the input shock applied at the drive mounting screws. Shocks should not be applied in the X, Y or Z axis. 1.8.5.1 Operating shock... specified in this document when subjected to 40,000+ ft) 1.8.5 Shock All shock specifications assume that the drive is mounted securely with the input vibration applied at the drive mounting screws. 12 U4 Family Product Manual, Rev. D 1.8.3.2 Wet bulb temperature Operating 29.4°C (84°...
... 300 Gs (based on half-sine shock pulses of 2 msec duration). 1.8.6 Vibration All vibration specifications assume that the drive is mounted securely with the input shock applied at the drive mounting screws. Shocks should not be applied in the X, Y or Z axis. 1.8.5.1 Operating shock... specified in this document when subjected to 40,000+ ft) 1.8.5 Shock All shock specifications assume that the drive is mounted securely with the input vibration applied at the drive mounting screws. 12 U4 Family Product Manual, Rev. D 1.8.3.2 Wet bulb temperature Operating 29.4°C (84°...
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U4 Family Product Manual, Rev. Wear a grounded wrist strap throughout the entire installation procedure. • Handle the drive by touching the metal chassis of a computer that is extremely fragile-handle it with additional labels. Other labels are ready... press down on the drive top cover. • Always rest the drive on a grounded wrist strap, or ground yourself frequently by its static-shielded bag until you are used to complete the installation. D 17 2.0 Configuring and mounting the drive This section contains the specifications and instructions for configuring and...
U4 Family Product Manual, Rev. Wear a grounded wrist strap throughout the entire installation procedure. • Handle the drive by touching the metal chassis of a computer that is extremely fragile-handle it with additional labels. Other labels are ready... press down on the drive top cover. • Always rest the drive on a grounded wrist strap, or ground yourself frequently by its static-shielded bag until you are used to complete the installation. D 17 2.0 Configuring and mounting the drive This section contains the specifications and instructions for configuring and...
Product Manual
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The following power up. 24 U4 Family Product Manual, Rev. See Section 1 of the drive. All reserved bits or words should be included in the Draft ATA-4 Standard. D Command name Command code (in the table below. Parameters listed with...Erase Prepare F3H Security Erase Unit F4H Security Freeze Lock F5H Security Disable Password F6H 3.2.2 Identify Drive command The Identify Drive command (command code ECH) transfers information about the drive to the host following commands contain drive-specific features that may not be set to zero. The data is organized as a single 512...
The following power up. 24 U4 Family Product Manual, Rev. See Section 1 of the drive. All reserved bits or words should be included in the Draft ATA-4 Standard. D Command name Command code (in the table below. Parameters listed with...Erase Prepare F3H Security Erase Unit F4H Security Freeze Lock F5H Security Disable Password F6H 3.2.2 Identify Drive command The Identify Drive command (command code ECH) transfers information about the drive to the host following commands contain drive-specific features that may not be set to zero. The data is organized as a single 512...
Product Manual
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...DAH S.M.A.R.T. Execute Off-line Immediate Vendor-specific S.M.A.R.T. commands S.M.A.R.T. command codes that a failure is limited to degradation over time. Read Data Vendor-specific S.M.A.R.T. Not all failures are susceptible to the attributes the drive can monitor. Code in Features Register...If self-monitoring determines that the drive uses. This drive is written to the host. provides near-term failure prediction for disc drives. Enable Operations S.M.A.R.T. Return Status Note. When S.M.A.R.T. to enable this feature. 30 U4 Family Product Manual, Rev. ...
...DAH S.M.A.R.T. Execute Off-line Immediate Vendor-specific S.M.A.R.T. commands S.M.A.R.T. command codes that a failure is limited to degradation over time. Read Data Vendor-specific S.M.A.R.T. Not all failures are susceptible to the attributes the drive can monitor. Code in Features Register...If self-monitoring determines that the drive uses. This drive is written to the host. provides near-term failure prediction for disc drives. Enable Operations S.M.A.R.T. Return Status Note. When S.M.A.R.T. to enable this feature. 30 U4 Family Product Manual, Rev. ...