Seagate ST38421A Product Manual

Seagate ST38421A - U4 8.4 GB Hard Drive Manual

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Seagate ST38421A manual content summary:

  • Seagate ST38421A | Product Manual - Page 1
    U4 Family ST32112A, ST34311A ST36421A, ST38421A Ultra ATA Interface Drives Product Manual
  • Seagate ST38421A | Product Manual - Page 2
  • Seagate ST38421A | Product Manual - Page 3
    U4 Family ST32112A, ST34311A ST36421A, ST38421A Ultra ATA Interface Drives Product Manual
  • Seagate ST38421A | Product Manual - Page 4
    1999 Seagate, Seagate Technology, the Seagate logo and U4 are either trademarks or 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
  • Seagate ST38421A | Product Manual - Page 5
    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 Seek time 6 1.6 Start/
  • Seagate ST38421A | Product Manual - Page 6
    iv U4 Family Product Manual, Rev. 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
  • Seagate ST38421A | Product Manual - Page 7
    U4 Family Product Manual, Rev. D v Figures Figure 1. Typical startup and operation current profile 9 Figure 2. Master/slave jumper settings 18 Figure 3. Mounting dimensions-top, side and end view 20 Figure 4. I/O pins and supported ATA signals 22
  • Seagate ST38421A | Product Manual - Page 8
    vi U4 Family Product Manual, Rev. D.
  • Seagate ST38421A | Product Manual - Page 9
    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,
  • Seagate ST38421A | Product Manual - Page 10
    U4 Family Product Manual, Rev. D Specification summary table The specifications listed in this table are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual. Drive Specification ST32112A ST34311A ST36421A ST38421A supported
  • Seagate ST38421A | Product Manual - Page 11
    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)
  • Seagate ST38421A | Product Manual - Page 12
    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
  • Seagate ST38421A | Product Manual - Page 13
    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 the U4 ST38421A, ST36421A, ST34311A and the ST32112A. 1.1 Formatted capacity Drive Model Guaranteed Mbytes
  • Seagate ST38421A | Product Manual - Page 14
    6 U4 Family Product Manual, Rev. D 1.3 Recording and interface technology Interface (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
  • Seagate ST38421A | Product Manual - Page 15
    U4 Family Product Manual, Rev. D 7 • Average seek time is a true statistical random to the manner in which these drives are formatted, benchmark tests that include command overhead or measure logical seeks may produce results that vary from these specifications. 1.6 Start/stop times Power-on
  • Seagate ST38421A | Product Manual - Page 16
    8 U4 Family Product Manual, Rev. D • Seek Mode During seek mode, the read/write actuator arm moves toward a specific position on the write for each 10 reads) and 20 percent drive inactive. • Idle mode power Idle mode power is measured with the drive up to speed, with servo electronics active and
  • Seagate ST38421A | Product Manual - Page 17
    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 (
  • Seagate ST38421A | Product Manual - Page 18
    10 U4 Family Product Manual, Rev. D 1.7.2 Conducted noise Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on the +12 volt line or an equivalent 15-ohm resistive load on the +5 volt line. • Using 12-volt power, the drive is expected to
  • Seagate ST38421A | Product Manual - Page 19
    U4 Family Product Manual, Rev. D 11 drive buffer is enabled, the heads are parked and the spindle is at rest. The drive accepts all commands and returns to Active mode any time disc access is necessary. • Sleep mode The drive enters Sleep mode after receiving a Sleep command from the host. In
  • Seagate ST38421A | Product Manual - Page 20
    Product Manual, Rev. D 1.8.3.2 Wet bulb temperature Operating 29.4°C (84°F) max Nonoperating 40.0°C (104°F) max 1.8.4 Altitude Operating Nonoperating -61 m to 3,048 m (-200 ft to 10,000+ ft) -122 m to 12,192 m (-400 ft to 40,000+ ft) 1.8.5 Shock All shock specifications assume that the drive
  • Seagate ST38421A | Product Manual - Page 21
    U4 Family Product Manual, Rev. D 13 1.8.6.1 Operating vibration The following table lists the maximum vibration levels that the drive may experience while meeting the performance standards specified in this document. 5-21 Hz 22-350 Hz 351-500 Hz 0.02-inch displacement (peak to peak) 0.5
  • Seagate ST38421A | Product Manual - Page 22
    14 U4 Family Product Manual, Rev. D 1.10 Electromagnetic susceptibility The drive operates Hard drives that display the CE marking comply with European Union requirements specified in Electromagnetic Compatibility Directives. Testing is performed to standards EN50082-1 and EN55022-B. Seagate
  • Seagate ST38421A | Product Manual - Page 23
    U4 Family Product Manual, Rev. D 15 comply with the directives when used in the test systems, we cannot guarantee that all systems will comply with the directives. The drive Tick If these models have the C-Tick the device is required. Seagate Technology, Inc. has the manufacturer's instructions, may
  • Seagate ST38421A | Product Manual - Page 24
    Manual, Rev. D If necessary, you should consult your dealer or an experienced radio/ television technician for additional suggestions. You may find helpful the following booklet prepared by the Federal Communications Commission: How to Identify and Resolve Radio-Television Interference Problems
  • Seagate ST38421A | Product Manual - Page 25
    U4 Family Product Manual, Rev. D 17 2.0 Configuring and mounting the drive This section contains the specifications and instructions for configuring and mounting the drive. 2.1 Handling and static-discharge precautions After unpacking, and before installation, the drive may be exposed to
  • Seagate ST38421A | Product Manual - Page 26
    18 U4 Family Product Manual, Rev. D 2.2 Jumper settings 2.2.1 Master/slave configuration The options jumper block (J8) shown in Figure 2 is used to configure the drive for operation. It is the 6-pin dual header between the I/O connector and the power connector. Use the following settings to
  • Seagate ST38421A | Product Manual - Page 27
    on the interface bus. Master and slave drives are determined by their physical position on the cable. To enable cable select, set a jumper on pins 5 and 6 as shown in Figure 2 on page 18. Consult your computer manual to determine whether your computer supports this option. 2.3 Ultra ATA/66 cable An
  • Seagate ST38421A | Product Manual - Page 28
    20 Note: Dimensions are shown in inches (mm). U4 Family Product Manual, Rev. D 1.00 ± 0.028 (25.4 ± 0.7) 0.230 ± 0.015 (5.84 ± 0.38) 3X 6-32 UNC-2B max. insertion depth 0.14 (3.6) both sides 2.23 ± 0.03 (56.6 ± 0.8) 3.72 ± 0.03 (94.5 ± 0.8) 0.180 ± 0.
  • Seagate ST38421A | Product Manual - Page 29
    U4 Family Product Manual, Rev. D 21 3.0 ATA interface These drives use the industry-standard ATA task file interface that supports 16-bit data transfers. It supports ATA programmed input/output (PIO) modes 0-4; multiword DMA modes 0-2, and Ultra DMA modes 0-4. The drive also supports the use of
  • Seagate ST38421A | Product Manual - Page 30
    22 U4 Family Product Manual, Rev. D Drive pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 35 Device Address (2:0) 36 Device Address (2:0) 37 Chip Select (1:0) 38 Chip Select (1:0) 39 Drive Active/Slave Present 40 Ground Pins 28, 34 and 39 are used for master-slave communication (details
  • Seagate ST38421A | Product Manual - Page 31
    U4 Family Product Manual, Rev. D 23 3.2 ATA Interface commands 3.2.1 Supported ATA commands The following table lists ATA-standard commands that the drive supports. For a detailed description of the ATA commands, refer to the Draft ATA-4 Standard. See Section 3.2.4 on page 30 for details and
  • Seagate ST38421A | Product Manual - Page 32
    24 U4 Family Product Manual, Rev. D Command name Command code (in hex) Write Sectors set to zero. Parameters listed with an "x" are drive-specific or vary with the state of the drive. See Section 1 of this manual for default parameter settings. The following commands contain drive-specific
  • Seagate ST38421A | Product Manual - Page 33
    U4 Family Product Manual, Rev. D Word 0 Description Configuration information: • Bit 15: 0 = ATA; 1 = ATAPI • Bit 7: removable media • Bit 6: removable controller • Bit 0: reserved 1 Number of logical cylinders: ST32112A = 4,192 ST34311A = 8,944 ST36421A = 13,330 ST38421A = 16,368 2 3 4 5 6
  • Seagate ST38421A | Product Manual - Page 34
    Manual, Rev. D Word 27-46 Description Drive model number: (40 ASCII characters, padded with blanks to end of string) 47 48 49 50 51 52 53 54 55 56 57-58 59 60-61 (Bits 7-0) Maximum sectors per interrupt on Read multiple and Write multiple (16) Reserved Standard Standby timer, IORDY supported
  • Seagate ST38421A | Product Manual - Page 35
    U4 Family Product Manual, Rev. D Word 63 64 65 66 67 68 69-74 75 76-79 80 81 82 83 84 85 86 87 88 89 90 Description Multiword DMA active and modes supported (see note following this table) Advanced PIO modes supported (modes 3 and 4 supported) Minimum multiword DMA transfer cycle time per word (
  • Seagate ST38421A | Product Manual - Page 36
    0000H 128 Security Status 129-159 Seagate-reserved 0001H xxxxH 160-255 ATA-reserved 0000H Note. See the bit descriptions below for words, 63, 88, and 93 of the Identify Drive data: Description (if bit is set to 1) Bit Word 63 0 Multiword DMA mode 0 is supported. 1 Multiword DMA mode 1 is
  • Seagate ST38421A | Product Manual - Page 37
    detected, CBLID above VIH 0=40-conductor cable detected, CBLID below VIL 3.2.3 Set Features command This command controls the implementation of various features that the drive supports. When the drive receives this command, it sets BSY, checks the contents of the Features register, clears BSY and
  • Seagate ST38421A | Product Manual - Page 38
    30 U4 Family Product Manual, Rev. D 55H Disable read look- supports S.M.A.R.T. to enable this feature. The table below shows the S.M.A.R.T. command codes that the drive uses. Code in Features Register S.M.A.R.T. Command D0H D1H D2H D3H D4H D7H D8H D9H DAH S.M.A.R.T. Read Data Vendor-specific
  • Seagate ST38421A | Product Manual - Page 39
    U4 Family Product Manual, Rev. D 31
  • Seagate ST38421A | Product Manual - Page 40
    32 U4 Family Product Manual, Rev. D
  • Seagate ST38421A | Product Manual - Page 41
    U4 Family Product Manual, Rev. D 33
  • Seagate ST38421A | Product Manual - Page 42
    34 U4 Family Product Manual, Rev. D Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, California 95066, USA Publication Number: SG35116-001, Rev. D, Printed in USA
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U4 Family
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ST32112A, ST34311A
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ST36421A, ST38421A
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Ultra ATA Interface Drives
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Product Manual
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