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g) If the device is in the process of performing the subcommand routine and is interrupted by a STANDBY
IMMEDIATE or IDLE IMMEDIATE command from the host, the device shall suspend or abort the
subcommand routine, and service the host within two seconds after receipt of the command. After receiving
a new command that causes the device to exit a power saving mode, the device shall initiate or resume the
subcommand routine without any additional commands from the host unless these activities were aborted by
the host.
h) While the device is performing the subcommand routine it shall not automatically change power states (e.g.,
as a result of its Standby timer expiring).
If an error occurs while a device is performing a self-test routine the device may discontinue the testing and place
the test results in the Self-test execution status byte.
10.8.33.5.2 Captive mode
When executing a self-test in captive mode, the device sets BSY to one and executes the self-test routine after
receipt of the command. At the end of the routine the device places the results of this routine in the Self-test
execution status byte and executes command completion. If an error occurs while a device is performing the
routine the device may discontinue its testing, place the results of this routine in the Self-test execution status
byte, and complete the command.
10.8.33.5.3 SMART off-line routine
This routine shall only be performed in the off-line mode. The results of this routine are placed in the Off-line
data collection status byte.
10.8.33.5.4 SMART Short self-test routine
Depending on the value in the Sector Number register, this self-test routine may be performed in either the
captive or the off-line or mode. This self-test routine should take on the order of ones of minutes to complete.
10.8.33.5.5 SMART Extended self-test routine
Depending on the value in the Sector Number register, this self-test routine may be performed in either the
captive or the off-line or mode. This self-test routine should take on the order of tens of minutes to complete.