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Medalist 17242, 13032, 10232, 8422 and 4312, Rev. A 31
At power-on, or after a hardware reset, the default values of the features
are as indicated above. A software reset also changes the features to
default values.
3.2.4 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 implementation, see the
Draft
ATA-4 Standard.
These drives are 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 the feature. The table below shows the S.M.A.R.T. command
codes that these drives use.
40
H
Ultra DMA mode 0
41
H
Ultra DMA mode 1
42
H
Ultra DMA mode 2
43
H
Ultra DMA mode 3
44
H
Ultra DMA mode 4
55
H
Disable read look-ahead (read cache) feature.
82
H
Disable write cache.
AA
H
Enable read look-ahead (read cache) feature
(default).
F1
H
Report full capacity available.
Code in
Features
Register
S.M.A.R.T. Command
Supported by
ST317242A
ST313032A
ST310232A
ST38422A
ST34312A
D0
H
S.M.A.R.T. Read Data Yes
D1
H
Vendor-specific Yes
D2
H
S.M.A.R.T. Enable/Disable Attribute
Autosave
Yes