Seagate Barracuda ST340015A - Manual (Page 46)

38 Barracuda 5400.1 Product Manual, Rev. G
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 monitors 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 imple-
mentation, see the
Draft ATA-7 Standard.
SeaTools diagnostic software activates a built-in drive self-test (DST S.M.A.R.T.
command for D4
H
) that eliminates 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 enabled. You must have a recent
BIOS or software package that supports S.M.A.R.T. to use this feature. The
table below shows the S.M.A.R.T. command codes that the drive supports.
Note. If an appropriate code is not written to the Features Register, the
command is aborted and 0
x04 (abort) is written to the Error register.
Code in features
register
S.M.A.R.T. command
D0
H
S.M.A.R.T. Read Data
D1
H
Vendor-specific
D2
H
S.M.A.R.T. Enable/Disable Attribute Autosave
D3
H
S.M.A.R.T. Save Attribute Values
D4
H
S.M.A.R.T. Execute Off-line Immediate (runs DST)
D5
H
S.M.A.R.T. Read Log Sector
D6
H
S.M.A.R.T. Write Log Sector
D7
H
Vendor-specific
D8
H
S.M.A.R.T. Enable Operations
D9
H
S.M.A.R.T. Disable Operations
DA
H
S.M.A.R.T. Return Status