Seagate ST1000VX000 ユーザーズマニュアル

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SV35 Series SATA Product Manual, Rev. C
35 
SATA Interface
4.3.3 S.M.A.R.T. commands
S.M.A.R.T. provides near-term failure prediction for disk 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-5 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 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.
21
H
Multiword DMA mode 1
22
H
Multiword DMA mode 2
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
45
H
Ultra DMA mode 5
46
H
Ultra DMA mode 6
10
H
Enable use of SATA features
55
H
Disable read look-ahead (read cache) feature.
82
H
Disable write cache
90
H
Disable use of SATA features
AA
H
Enable read look-ahead (read cache) feature (default).
F1
H
Report full capacity available
Note
At power-on, or after a hardware or software reset, the default values of the features are as indicated 
above. 
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