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4.1.4
S.M.A.R.T. commands
S.M.A.R.T. provides near-term failure prediction for disc drives. When S.M.A.R.T. is enabled, the drive moni-
tors predetermined drive attributes that are susceptible to degradation over time. If self-monitoring determines
that a failure is likely, S.M.A.R.T. makes a status report available to the host. Not all failures are predictable.
S.M.A.R.T. predictability is limited to the attributes the drive can monitor. For more information on S.M.A.R.T.
commands and implementation, see the Draft ATA-6 Standard.
SeaTools diagnostic software activates a built-in drive self-test (DST S.M.A.R.T. command for D4
nates unnecessary drive returns. The diagnostic software ships with all new drives and is also available at:
http://seatools.seagate.com.
This drive is shipped with S.M.A.R.T. features disabled. You must have a recent BIOS or software package that
supports S.M.A.R.T. to enable this feature. The table below shows the S.M.A.R.T. command codes that the
drive uses.
Code in features
register
S.M.A.R.T. command
D0
S.M.A.R.T. Read Data
H
D1
Vendor-specific
H
D2
S.M.A.R.T. Enable/Disable Attribute Autosave
H
D3
S.M.A.R.T. Save Attribute Values
H
D4
S.M.A.R.T. Execute Off-line Immediate (runs DST)
H
D5
S.M.A.R.T. Read Log Sector
H
D6
S.M.A.R.T. Write Log Sector
H
D7
Vendor-specific
H
D8
S.M.A.R.T. Enable Operations
H
D9
S.M.A.R.T. Disable Operations
H
DA
S.M.A.R.T. Return Status
H
Note.
If an appropriate code is not written to the Features Register, the command is aborted and 0x 04
(abort) is written to the Error register.
U Series 9 Product Manual, Rev. D
) that elimi-
H
29
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