Hitachi HDT725025VLA380 - Deskstar 0A33423 T7K500 250GB SATA 7200RPM 8MB Cache Hard Drive Specifications page 241

12.42.1.4 S.M.A.R.T. Save Attribute Values (subcommand D3h)
This subcommand causes the device to immediately save any updated Attribute Values to the device's Attribute
Data sector regardless of the state of the Attribute Autosave feature. Upon receipt of the S.M.A.R.T. Save Attribute
Values subcommand from the host, the device asserts BSY, writes any updated Attribute Values to the Attribute
Data sector, clears BSY, and asserts INTRQ.
12.42.1.5 S.M.A.R.T. Execute Off-line Immediate (subcommand D4h)
This subcommand causes the device to immediately initiate the set of activities that collect Attribute data in an off-
line mode (off-line routine) or execute a self-test routine in either captive or off-line mode. The Sector Number reg-
ister shall be set to specify the operation to be executed.
Sector
Number
0 Execute S.M.A.R.T. off-line data collection routine immediately
1 Execute S.M.A.R.T. Short self-test routine immediately in off-line mode
Execute S.M.A.R.T. Extended self-test routine immediately in off-line
2
mode
4 Execute SMART Selective self-test routine immediately in off-line mode
127 Abort off-line mode self-test routine
129 Execute S.M.A.R.T. Short self-test routine immediately in captive mode
Execute S.M.A.R.T. Extended self-test routine immediately in captive
130
mode
132 Execute SMART Selective self-test routine immediately in captive mode.
Off-line mode: The device executes command completion before executing the specified routine. During execu-
tion of the routine the device will not set BSY nor clear DRDY. If the device is in the process of performing its rou-
tine and is interrupted by a new command from the host, the device will abort or suspend its routine and service the
host within two seconds after receipt of the new command. After servicing the interrupting command, the device
will resume its routine automatically or not start its routine depending on the interrupting command.
Captive mode: When executing self-test in captive mode, the device sets BSY to one and executes the specified
self-test routine after receipt of the command. At the end of the routine the device sets the execution result in the
Self-test execution status byte (see Table 140: "Device Attribute Data Structure" on page 230) and ATA registers
as defined below and then executes the command completion.
Status Set ERR to one when the self-test has failed
Error Set ABRT to one when the self-test has failed
Cyl Low Set to F4h when the self-test has failed
Cyl High Set to 2Ch when the self-test has failed
12.42.1.6 S.M.A.R.T. Read Log Sector (subcommand D5h)
This command returns the specified log sector contents to the host.
The 512 bytes of data are returned at a command and the Sector Count value shall be set to one. The Sector Num-
ber shall be set to specify the log sector address.
Log sector address
Operation to be executed
Content
Deskstar T7K500 Hard Disk Drive Specification
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Type