Fujitsu MHM2100AT - Mobile 10 GB Hard Drive Product Manual page 140

(29) SMART (X'B0)
This command performs operations for device failure predictions according to a
subcommand specified in the FR register. If the value specified in the FR register
is supported, the Aborted Command error is posted.
It is necessary for the host to set the keys (CL = 4Fh and CH = C2h) in the CL and
CH registers prior to issuing this command. If the keys are set incorrectly, the
Aborted Command error is posted.
In the default setting, the failure prediction feature is enabled.
The device collects or updates several items to forecast failures. In the following
sections, the values of items collected or updated by the device to forecast failures
are referred to as attribute values.
C141-E104-03EN
5.3 Host Commands
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