Seagate ST400FM0012, Руководство по эксплуатации продукта

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40 Pulsar.2 Product Manual, Rev. B
4.3.3 S.M.A.R.T. commands
S.M.A.R.T. provides near-term failure prediction for 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-8 Standard.
SeaTools diagnostic software activates a built-in drive self-test (DST S.M.A.R.T. command for D4
H
) that elimi-
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.
Note.
If an appropriate code is not written to the Features Register, the command is aborted and 0
x
04
(abort) is written to the Error register.
4.3.4 SSD Percentage Endurance Remaining Indicator
An application can interrogate the drive through the host to determine an estimate of the percentage of device
life that is remaining. Seagate SeaTools diagnostic software has the capability to report the indicator value.
Table 9: S.M.A.R.T. commands
Code in features register S.M.A.R.T. command
D0
H
S.M.A.R.T. Read Data
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
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