Seagate ST38421A - U4 8.4 GB Hard Drive Support and Manuals
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Popular Seagate ST38421A Manual Pages
Product Manual - Page 6
... 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.
Product Manual - Page 7
Typical startup and operation current profile 9 Figure 2. U4 Family Product Manual, Rev. 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.
Product Manual - Page 9
... and Write Multiple commands • Support for the U4™ ST38421A, ST36421A, ST34311A and the ST32112A. D
1
Introduction
This manual describes the functional, mechanical and interface specifications for autodetection of -the-art cache and on-the-fly error-correction algorithms • MR recording heads and EPRML technology, which provide the drives
with increased areal density
•...
Product Manual - Page 10
...section of this table are for quick reference.
2
U4 Family Product Manual, Rev. Drive Specification
ST32112A ST34311A ST36421A ST38421A
Guaranteed Mbytes (×106 bytes)
2,160
4,320
... (Mbits/sec max)
206
I/O data-transfer rate
(Mbytes/sec max)
66.6
ATA data-transfer modes supported
PIO modes 0-4 Multiword DMA modes 0-2
Ultra DMA modes 0-4
Cache buffer (Kbytes)
256
Height (mm ...
Product Manual - Page 12
... 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...
Product Manual - Page 13
D
5
1.0 Drive specifications
Unless otherwise noted, all blocks (sectors) 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 (1 Mbyte = 106 bytes)
ST38421A
8,440...
Product Manual - Page 18
...
1.7.4 Power-management modes
The drive provides programmable power management to 10 MHz. 10
U4 Family Product Manual, Rev. D
1.7.2 Conducted ...drive is expected to operate with a maximum
of 100 mV peak-to-peak square-wave injected noise at up to provide greater energy efficiency. If the host has set the standby timer, the drive can control power management through the system setup...
Product Manual - Page 22
Seagate uses an independent laboratory to standards EN50082-1 and EN55022-B.
Drives are tested in the previous paragraph. 14
U4 Family Product Manual, Rev. Testing is measured with the drive mounted in a representative computer system (mounted to the bezel or other external surfaces on the ground plane.
1.11 Reliability
Nonrecoverable read errors Mean time between failures
Contact ...
Product Manual - Page 23
...that the total assembly (enclosure, disc drive, motherboard, power supply, etc.) does comply with the manufacturer's instructions, may cause interference to radio and television reception. Australian C-Tick
If these models have the C-Tick marking, they comply with the directives.
If this device in a particular installation. U4 Family Product Manual, Rev. D
15
comply with the directives...
Product Manual - Page 26
... settings to configure the drive as a master or a slave.
Master or single drive. Master/slave jumper settings D
2.2 Jumper settings
2.2.1 Master/slave configuration
The options jumper block (J8) shown in Figure 2 is the 6-pin dual header between the I/O connector and the power connector. Set a jumper on pins 5 and 6 and a jumper on pins 7 and 8. 18
U4 Family Product Manual...
Product Manual - Page 27
... mode 3 and 4.
The drive supports both host and drive cable detection. The result is reported in a Fast Rise Detected bit (bit 13 of the drive for drive mounting dimensions. D
19
...18. The drive detects the 80-conductor cable by their physical position on pins 5 and 6 as shown in the bottom-mounting holes. U4 Family Product Manual, Rev. To enable cable select, set a jumper on the...
Product Manual - Page 32
...94H or E0H
ATA-standard security commands
Security Set Password
F1H
Security Unlock
F2H
Security 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...
Product Manual - Page 34
...U4 Family Product 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...850 ST38421A = 16,498,944
62 Retired
Value ST32112A ST34311A ST36421A ST38421A
8010H...
Product Manual - Page 36
... 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 supported.
2 Multiword DMA mode 2 is supported.
8 Multiword DMA mode...
Product Manual - Page 37
U4 Family Product Manual, Rev. If the value in Sector Count register). When the drive receives this command, it sets BSY, checks the contents of various features that the drive supports, the command is currently active.
The acceptable values for the Features register are defined as follows:
02H
Enable write cache (default).
03H
Set transfer mode (based on...
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