Datasheet

Datasheet 06/04/2012
PSFEM2XXXGXXXX Viking Technology
Revision A2 Page 29 of 46
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adopted S.M.A.R.T. to help warn system software, a system administrator, or a
user of impending drive failure, while time remains to take preventive action.
It provides the host system with the knowledge of a negative reliability condition
to allow the host system to warn the user of the impending risk of data loss and
advise the user of the appropriate action.
The technical documentation for S.M.A.R.T. is captured in the AT Attachment
(ATA) standard. The standard defines the protocols for reporting errors and for
invoking self-tests to collect and analyze data on demand. The ATA specification
is flexible and provides for individual manufacturers to define their own unique
vendor specific information. This section describes the baseline supported
S.M.A.R.T. command attributes. The information herein should be used in
conjunction with the ATA standard and related documents, which may serve as
references for topics and details not addressed here. Further, it is recommended
to consult the list of public S.M.A.R.T. attributes.
The supported S.M.A.R.T. command set is listed in the table below. See the AT
Attachment standard for implementation details.
5.1.2 S.M.A.R.T. Command Set
The supported S.M.A.R.T. command set is listed in the table below. See the AT
Attachment standard for implementation details.
Table 5-3: S.M.A.R.T. Command Set
Value (hex) Command
00-CF Reserved
D0 S.M.A.R.T. read attributes
D1* S.M.A.R.T. read threshold
D2 S.M.A.R.T. enable/disable attribute autosave
D3* S.M.A.R.T. save attribute values
D4 S.M.A.R.T. execute off-line immediate
D5 S.M.A.R.T. read log sector
D6 S.M.A.R.T. write log sector
D7* S.M.A.R.T. write attribute threshold
D8 S.M.A.R.T. enable operations
D9 S.M.A.R.T. disable operations
DA S.M.A.R.T. return status
DB S.M.A.R.T. enable/disable automatic off-line
DC-FF Reserved (Vendor Specific)
* Note that D1, D3, and D7 have been made obsolete in the
ATA-8 specification.