Cactus Technologies, Limited
6.5. S.M.A.R.T Execute Off-line Immediate (subcommand
D4h)
This subcommand causes the device to start the off-line process for the requested mode and
operation. The LBA Low register shall be set to specify the operation to be executed as
follows:
LBA Low value
Description
00h
Execute SMART off-line data collection routine immediately
01h
Execute SMART short self-test routine immediately in off-line mode
02h
Execute SMART Extended self-test routine immediately in off-line mode
03h
Reserved
04h
Execute SMART Selective self-test routine immediately in off-line mode
40h
Reserved
7Fh
Abort off-line mode self-test routine
81h
Execute SMART short self-test routine immediately in captive mode
82h
Execute SMART Extended self-test routine immediately in captive mode
84h
Execute SMART Selective self-test routine immediately in captive mode
C0h
Reserved
Off-line mode
: The device executes command completion before executing the specified
routine. During execution of the routine the device will not set BSY nor clear DRDY. If the
device is in the process of performing its routine 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 and ATA
registers and then executes the command completion. Taskfile registers will have return
values as follows:
STATUS reg: Set ERR to one when self-test failed
ERR reg: Set ABRT to one when self-test failed
LBA LOW reg: Set to F4h when self-test failed
LBA HIGH reg: Set to 2Ch when self-test failed
Cactus Technologies Limited
Industrial Grade -910S/910S-P1 Series SSD Product Manual
v2.2
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