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Other product names are either trademarks or registered trademarks of their owners. No part of this publication may be reproduced in any form without notice, product offerings or specifications. All rights reserved Publication Number: SG35116-001, Rev. Seagate reserves the right to change, without written permission from Seagate Technology, Inc. ©1999 Seagate Technology, Inc. D, June 1999 Seagate, Seagate Technology, the Seagate logo and U4 are registered trademarks or trademarks of Seagate Technology, Inc.
Other product names are either trademarks or registered trademarks of their owners. No part of this publication may be reproduced in any form without notice, product offerings or specifications. All rights reserved Publication Number: SG35116-001, Rev. Seagate reserves the right to change, without written permission from Seagate Technology, Inc. ©1999 Seagate Technology, Inc. D, June 1999 Seagate, Seagate Technology, the Seagate logo and U4 are registered trademarks or trademarks of Seagate Technology, Inc.
Product Manual
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U4 Family Product Manual, Rev. D iii Contents Specification summary table 2 1.0 Drive specifications 5 1.1 Formatted capacity 5 1.1.1 Default logical geometry 5 1.2 Physical organization 5 1.3 Recording and interface technology 6 1.4 Physical characteristics 6 1.5 ...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 ...
U4 Family Product Manual, Rev. D iii Contents Specification summary table 2 1.0 Drive specifications 5 1.1 Formatted capacity 5 1.1.1 Default logical geometry 5 1.2 Physical organization 5 1.3 Recording and interface technology 6 1.4 Physical characteristics 6 1.5 ...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 ...
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D 2.0 Configuring and mounting the drive 17 2.1 Handling and static-discharge precautions 17 2.2 Jumper settings 18 2.2.1 Master/slave configuration 18 2.2.2 Cable-select option 19 2.3 Ultra ATA/66 cable 19 2.4 Drive mounting 19 3.0 ATA interface 21 3.1 ATA interface signals and connector pins 21 3.2 ATA Interface commands 23 3.2.1 Supported ATA commands 23 3.2.2 Identify Drive command 24 3.2.3 Set Features command 29 3.2.4 S.M.A.R.T. iv U4 Family Product Manual, Rev. commands 30
D 2.0 Configuring and mounting the drive 17 2.1 Handling and static-discharge precautions 17 2.2 Jumper settings 18 2.2.1 Master/slave configuration 18 2.2.2 Cable-select option 19 2.3 Ultra ATA/66 cable 19 2.4 Drive mounting 19 3.0 ATA interface 21 3.1 ATA interface signals and connector pins 21 3.2 ATA Interface commands 23 3.2.1 Supported ATA commands 23 3.2.2 Identify Drive command 24 3.2.3 Set Features command 29 3.2.4 S.M.A.R.T. iv U4 Family Product Manual, Rev. commands 30
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Typical startup and operation current profile 9 Figure 2. D v Figures Figure 1. I/O pins and supported ATA signals 22 Master/slave jumper settings 18 Figure 3. Mounting dimensions-top, side and end view 20 Figure 4. U4 Family Product Manual, Rev.
Typical startup and operation current profile 9 Figure 2. D v Figures Figure 1. I/O pins and supported ATA signals 22 Master/slave jumper settings 18 Figure 3. Mounting dimensions-top, side and end view 20 Figure 4. U4 Family Product Manual, Rev.
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These drives provide the following key features: • Low power consumption • Quiet operation • 10-5 msec seek time, 5-400-RPM and 256-Kbyte buffer for excellent ... density • Support for autodetection of master/slave drives that use cable select (CSEL) drive monitoring and reporting • Support for Read Multiple and Write Multiple commands • 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 the U4™ ST38421A, ST36421A, ST34311A and the ST32112A.
These drives provide the following key features: • Low power consumption • Quiet operation • 10-5 msec seek time, 5-400-RPM and 256-Kbyte buffer for excellent ... density • Support for autodetection of master/slave drives that use cable select (CSEL) drive monitoring and reporting • Support for Read Multiple and Write Multiple commands • 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 the U4™ ST38421A, ST36421A, ST34311A and the ST32112A.
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... measurement or definition, see the appropriate section of this table are for quick reference. D Specification summary table The specifications listed in this manual. 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... 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.
... measurement or definition, see the appropriate section of this table are for quick reference. D Specification summary table The specifications listed in this manual. 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... 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.
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and nonop.) 5% to 90% (op.) 5% to peak, 5-350 Hz) U4 Family Product Manual, Rev. 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) ...
and nonop.) 5% to 90% (op.) 5% to peak, 5-350 Hz) U4 Family Product Manual, Rev. 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) ...
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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 4 U4 Family Product Manual, Rev.
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...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 ST32112A 2,160 Guaranteed sectors 16... and nominal power. For convenience, the phrases the drive and this drive are used throughout this manual to n-1, where n is the number of guaranteed sectors as defined above. 1.2 Physical organization Drive Model Read/Write heads (MR) ST38421A 4 ST36421A 3 ST34311A 2 ST32112A 1 Number of ...
...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 ST32112A 2,160 Guaranteed sectors 16... and nominal power. For convenience, the phrases the drive and this drive are used throughout this manual to n-1, where n is the number of guaranteed sectors as defined above. 1.2 Physical organization Drive Model Read/Write heads (MR) ST38421A 4 ST36421A 3 ST34311A 2 ST32112A 1 Number of ...
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...; Track-to-track seek time is an average of all possible single-track seeks in the table below are measured using drive diagnostics. D 1.3 Recording and interface technology Interface ATA Recording method 16/17 EPRML Recording density BPI (bits/inch) 241,... 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...
...; Track-to-track seek time is an average of all possible single-track seeks in the table below are measured using drive diagnostics. D 1.3 Recording and interface technology Interface ATA Recording method 16/17 EPRML Recording density BPI (bits/inch) 241,... 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...
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...track-to-track and average) are formatted, benchmark tests that include command overhead or measure logical seeks may produce results that the drive spindle reaches operating speed. The full-stroke typical value is one-half the time needed to seek from the first data cylinder to... the drives are designed to consistently meet or exceed the noted values. These drives are listed in this manual. Note. Typical power measurements are based on an average of drives tested, under nominal conditions, using 5.0V input voltage at least 5,000 measurements of power-on page 9. U4 Family ...
...track-to-track and average) are formatted, benchmark tests that include command overhead or measure logical seeks may produce results that the drive spindle reaches operating speed. The full-stroke typical value is one-half the time needed to seek from the first data cylinder to... the drives are designed to consistently meet or exceed the noted values. These drives are listed in this manual. Note. Typical power measurements are based on an average of drives tested, under nominal conditions, using 5.0V input voltage at least 5,000 measurements of power-on page 9. U4 Family ...
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...current Read/write power is measured with the heads on track, based on the disc surface and does not execute a read /write electronics are active. 8 U4 Family Product Manual, Rev. D • Seek Mode During seek mode, the read/write actuator arm moves toward a specific position on a 16-sector ... represents the worst-case power consumption, using 40 percent random seeks, 40 percent read/write mode (1 write for each 10 reads) and 20 percent drive inactive. • Idle mode power Idle mode power is not spinning, and the servo and read or write operation. Servo electronics are in a ...
...current Read/write power is measured with the heads on track, based on the disc surface and does not execute a read /write electronics are active. 8 U4 Family Product Manual, Rev. D • Seek Mode During seek mode, the read/write actuator arm moves toward a specific position on a 16-sector ... represents the worst-case power consumption, using 40 percent random seeks, 40 percent read/write mode (1 write for each 10 reads) and 20 percent drive inactive. • Idle mode power Idle mode power is not spinning, and the servo and read or write operation. Servo electronics are in a ...
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U4 Family Product Manual, Rev. D Power Mode Spinup Seek (Random, no read/write) Operating Idle Standby/Sleep Typical Watts RMS - 7.0 5.7 3.1 0.8 1.7.1.1 Typical current profile Figure 1 shows a typical current profile. Current (amps) 9 Typical Amps RMS 5V 12V - 1.5 (peak) 0.39 0.42 0.34 0.33 0.24 0.16 0.14 0.01 1.2 1.0 0.8 0.6 0.4 0.2 0 1 2 3 4 5 6 7 8 Time (seconds) Figure 1. Typical startup and operation current profile
U4 Family Product Manual, Rev. D Power Mode Spinup Seek (Random, no read/write) Operating Idle Standby/Sleep Typical Watts RMS - 7.0 5.7 3.1 0.8 1.7.1.1 Typical current profile Figure 1 shows a typical current profile. Current (amps) 9 Typical Amps RMS 5V 12V - 1.5 (peak) 0.39 0.42 0.34 0.33 0.24 0.16 0.14 0.01 1.2 1.0 0.8 0.6 0.4 0.2 0 1 2 3 4 5 6 7 8 Time (seconds) Figure 1. Typical startup and operation current profile
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... nominal voltage by the typical RMS read /write and seek operations. • Idle mode The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disc access is expected to operate with a maximum of 120 mV peak...efficiency. The drive features the following power-management modes: Power Mode Active Idle Standby Sleep Heads Tracking Tracking Parked Parked Spindle Rotating Rotating Stopped Stopped Buffer Enabled Enabled Enabled Disabled • Active mode The drive is established using a Standby or Idle command. 10 U4 Family Product Manual...
... nominal voltage by the typical RMS read /write and seek operations. • Idle mode The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disc access is expected to operate with a maximum of 120 mV peak...efficiency. The drive features the following power-management modes: Power Mode Active Idle Standby Sleep Heads Tracking Tracking Parked Parked Spindle Rotating Rotating Stopped Stopped Buffer Enabled Enabled Enabled Disabled • Active mode The drive is established using a Standby or Idle command. 10 U4 Family Product Manual...
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U4 Family Product Manual, Rev. If the standby timer reaches zero before any time disc access is at 10,000 feet (3,048 meters). Operating ambient temperature is required, the drive makes a transition to 95% noncondensing (30% per hour max) Nonoperating 5% to Standby mode. In Sleep mode, the drive...• Sleep mode The drive enters Sleep mode after it receives a Hard Reset or Soft Reset from its specified delay times to Active mode any drive activity is defined as the temperature of the environment immediately surrounding the drive. 1.8.2 Temperature gradient Operating/...
U4 Family Product Manual, Rev. If the standby timer reaches zero before any time disc access is at 10,000 feet (3,048 meters). Operating ambient temperature is required, the drive makes a transition to 95% noncondensing (30% per hour max) Nonoperating 5% to Standby mode. In Sleep mode, the drive...• Sleep mode The drive enters Sleep mode after it receives a Hard Reset or Soft Reset from its specified delay times to Active mode any drive activity is defined as the temperature of the environment immediately surrounding the drive. 1.8.2 Temperature gradient Operating/...
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...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 vibration applied at the drive mounting screws. D 1.8.3.2 Wet bulb temperature Operating 29.4°C (84°F) max Nonoperating 40.0°C (104... of 2 msec. Shock may be applied in the X, Y or Z axis. 1.8.5.1 Operating shock These drives comply with the input shock applied at the drive mounting screws. 12 U4 Family Product Manual, Rev. Vibration may be applied in this document when subjected to 40,000+ ft) ...
...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 vibration applied at the drive mounting screws. D 1.8.3.2 Wet bulb temperature Operating 29.4°C (84°F) max Nonoperating 40.0°C (104... of 2 msec. Shock may be applied in the X, Y or Z axis. 1.8.5.1 Operating shock These drives comply with the input shock applied at the drive mounting screws. 12 U4 Family Product Manual, Rev. Vibration may be applied in this document when subjected to 40,000+ ft) ...
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... experience without incurring physical damage or degradation in seek mode only. For seek mode tests, the drive was oriented with ISO document 7779. U4 Family Product Manual, Rev. Sound power measurements were taken under essentially free-field conditions over a reflecting plane. ...+ average access time) Acoustic mode Idle mode Sound power (bels) 3.3 (typ) 3.7 (max) Seek mode 3.9 (typ) 4.3 (max) For all tests, the drive was placed in performance when subsequently put into operation. 5-21Hz 22-350 Hz 351-500 Hz 0.02-inch displacement (peak to peak) 5.0 Gs acceleration (zero...
... experience without incurring physical damage or degradation in seek mode only. For seek mode tests, the drive was oriented with ISO document 7779. U4 Family Product Manual, Rev. Sound power measurements were taken under essentially free-field conditions over a reflecting plane. ...+ average access time) Acoustic mode Idle mode Sound power (bels) 3.3 (typ) 3.7 (max) Seek mode 3.9 (typ) 4.3 (max) For all tests, the drive was placed in performance when subsequently put into operation. 5-21Hz 22-350 Hz 351-500 Hz 0.02-inch displacement (peak to peak) 5.0 Gs acceleration (zero...
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....2 Electromagnetic compatibility Hard drives that display the CE marking comply with 60 cycles per hour and a 50% duty cycle) None required 1.12 Agency certification 1.12.1 Safety certification The drives are tested in Electromagnetic Compatibility Directives. Testing is measured with the drive mounted in the previous paragraph. 14 U4 Family Product Manual, Rev. Seagate uses an independent...
....2 Electromagnetic compatibility Hard drives that display the CE marking comply with 60 cycles per hour and a 50% duty cycle) None required 1.12 Agency certification 1.12.1 Safety certification The drives are tested in Electromagnetic Compatibility Directives. Testing is measured with the drive mounted in the previous paragraph. 14 U4 Family Product Manual, Rev. Seagate uses an independent...
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U4 Family Product Manual, Rev. Operation with noncertified assemblies is designed for operation inside ... the C-Tick marking, they comply with the limits for their products. The drive is likely to result in strict accordance with the directives. Seagate Technology, Inc. has tested this equipment does cause interference to radio or television.... D 15 comply with the directives when used in interference to ensure that the total assembly (enclosure, disc drive, motherboard, power supply, etc.) does comply with the Australia/ New Zealand Standard AS/NZS3548 1995 and meet ...
U4 Family Product Manual, Rev. Operation with noncertified assemblies is designed for operation inside ... the C-Tick marking, they comply with the limits for their products. The drive is likely to result in strict accordance with the directives. Seagate Technology, Inc. has tested this equipment does cause interference to radio or television.... D 15 comply with the directives when used in interference to ensure that the total assembly (enclosure, disc drive, motherboard, power supply, etc.) does comply with the Australia/ New Zealand Standard AS/NZS3548 1995 and meet ...