U8 Family Product Manual, Rev. B | 11 |
established using a Standby or Idle command. In Standby mode, the 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 Sleep mode, the drive buffer is disabled, the heads are parked and the spindle is at rest. The drive leaves Sleep mode after it receives a Hard Reset or Soft Reset from the host. After receiving a reset, the drive exits Sleep mode and enters Active mode with all current translation parameters intact.
•Idle and Standby timers
Each time the drive performs an Active function (read, write or seek), the standby timer is reinitialized and begins counting down from its specified delay times to zero. If the standby timer reaches zero before any drive activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the drive accepts all commands and returns to Active mode when disc access is necessary.
1.8 Environmental tolerances
1.8.1 Ambient temperature
Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Actual drive case temperature should not exceed 65°C (149°F) within the operating ambient conditions. Rec- ommended measurement locations are shown in Figure 3 on page 20.
Above 1,000 feet (305 meters), the maximum temperature is derated linearly to 112°F (44°C) at 10,000 feet (3,048 meters).
Operating | 0° to 60°C (32° to 131°F) |
Nonoperating | –40° to 70°C (–40° to 158°F) |
1.8.2 Temperature gradient
Operating/Nonoperating 20°C/hr (36°F/hour) max, without condensation
ST38410A, ST34313A
U8 Family
ST317221A, ST313021A
Ultra ATA Interface Drives
ST38410A, ST34313A
U8 Family
ST317221A, ST313021A
Ultra ATA Interface Drives
Page
Contents
U8 Family Product Manual, Rev. B
Configuring and mounting the drive
ATA interface
Figures
U8 Family Product Manual, Rev. B
Introduction
ST317221A
Specification summary table
Drive Specification
ST313021A
ST317221A
0 to 60C op., -40 to 70C nonop
ST313021A
1.1 Formatted capacity
1.0 Drive specifications
1.1.1 Default logical geometry
1.2 Physical organization
1.3 Recording and interface technology
1.4 Physical characteristics
Drive Specification
1.5 Seek time
Spinup power
1.7 Power specifications
1.7.1 Power consumption
1.6 Start/stop times
Idle mode power
Read/Write power and current
Operating power and current
Seek Mode
Typical Watts
Power Mode
1.7.1.1 Typical current profile
Typical Amps RMS
1.7.2 Conducted noise
1.7.4 Power-management modes
Power Modes
1.7.3 Voltage tolerance
1.8.2 Temperature gradient
Idle and Standby timers
1.8 Environmental tolerances 1.8.1 Ambient temperature
Sleep mode
1.8.3 Humidity
1.8.6.1 Operating vibration
1.8.6.2 Nonoperating vibration
1.9 Drive acoustics
1.11 Reliability
1.12 Agency certification 1.12.1 Safety certification
1.10 Electromagnetic susceptibility
1.12.2 Electromagnetic compatibility
1.12.3 FCC verification
Australian CE-Tick N176
U8 Family Product Manual, Rev. B
2.0 Configuring and mounting the drive
2.1 Handling and static-discharge precautions
Options jumper block J8 Master or single drive Drive is slave
2.2 Jumper settings 2.2.1 Master/slave configuration
7 5 3 8 6 4
Cable select
2.2.2 Cable-select option
2.2.3 Ultra ATA/66 cable
2.3 Drive mounting
Figure 3. Mounting dimensions-top, side and end view
Note Dimensions are shown in inches mm
3.0 ATA interface
3.1 ATA interface signals and connector pins
Host pin # and signal description
Figure 4. I/O pins and supported ATA signals
Signal name
Drive pin #
Command code in hex
3.1.1 Supported ATA commands
Command name
ATA-standard commands
3.1.2 Identify Drive command
Command code in hex
x.xx
Word
Description
Value
xxxxH
xx07H
xx1FH
xxA5H
Description if bit is set to Bit Word
Bit Word
3.1.3 Set Features command
Set transfer mode based on value in Sector Count register
S.M.A.R.T. Command
3.1.4 S.M.A.R.T. commands
Code in Features
Register
Code in Features
Page
Page
Seagate Technology, Inc
920 Disc Drive, Scotts Valley, California 95066, USA
Publication Number SG35226-001, Rev. B, Printed in USA