13.33 S.M.A.R.T. Function Set (B0h)
see belowStatus1 0 1 1 0 0 0 0Command
- - - - - - - -Device/Head1 - 1 D - - - -Device/Head
- - - - - - - -Cylinder High1 1 0 0 0 0 1 0Cylinder High
- - - - - - - -Cylinder Low0 1 0 0 1 1 1 1Cylinder Low
- - - - - - - -Sector Number- - - - - - - -Sector Number
- - - - - - - -Sector CountV V V V V V V VSector Count
see belowErrorV V V V V V V VFeature
- - - - - - - -Data- - - - - - - -Data
7 6 5 4 3 2 1 0Register7 6 5 4 3 2 1 0Register
Command Block Input RegistersCommand Block Output Registers
V-0-V0V000V00000
ERRIDXCORDRQDSCDFRDYBSYAMNT0NABT0IDN0UNCCRC
0123456701234567
Status RegisterError Register
Figure 116. S.M.A.R.T. Function Set command (B0h)
The
S.M.A.R.T.
Function Set command provides access to the Attribute Values, the Attribute Thresholds,
and other low level subcommands that can be used for logging and reporting purposes and to
accommodate special user needs. The
S.M.A.R.T.
Function Set command has several separate
subcommands which are selectable via the device's Features Register when the
S.M.A.R.T.
Function Set
command is issued by the host.
In order to select a subcommand the host must write the subcommand code to the device's Features
Register before issuing the
S.M.A.R.T.
Function Set command. The subcommands and their respective
codes are listed below.
Code Subcommand
D0h S.M.A.R.T. Read Attribute Values
D1h S.M.A.R.T. Read Attribute Thresholds
D2h S.M.A.R.T. Enable/disable Attribute Autosave
D3h S.M.A.R.T. Save Attribute Values
D4h S.M.A.R.T. Execute Off-line Immediate
D5h S.M.A.R.T. Read Log Sector
D6h S.M.A.R.T. Write Log Sector
Travelstar 48GH, 30GN & 15GN hard disk drive specifications
169
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