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12.55.1.5 SMART 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.
Table 224 SMART Enable/Disable Attribute Autosave (B0h-D4h)
Command Input
Field
Description
FEATURE
D4h
COUNT
N/A
LBA
Bit
Description
27:24
N/A
23:8
C24Fh
7:0
Defines the subcommand that shall be processed
DEVICE
Bit Description
7 Obsolete
6 N/A
5 Obsolete
4 Transport Dependent
3:0 Reserved
Command
7:0 B0h
Normal Outputs
Field
Description
ERROR
N/A
COUNT
N/A
LBA
Bit
Description
27:24
N/A
23:8
Value Description
C24Fh: The subcommand specified a captive self-test that has completed without
error.
All Other Values: the subcommand specified an off-line routine including an off-line
self-test routine.
7:0
N/A
DEVICE
Bit Description
7 Obsolete
6 N/A
5 Obsolete
4 Transport Dependent
3:0 Reserved
STATUS
Bit Description
7:6 Transport Dependent
5 DEVICE FAULT bit
4 N/A
3 Transport Dependent
2 N/A or ALIGNMENT ERROR bit
1 SENSE DATA AVAILABLE bit
0 ERROR bit
304
Hard Disk Drive Specification