Deskstar 7K160 Hard Disk Drive Specification
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Note:
Log addresses 03h and 07h are used by the Read Log Ext and Write Log Ext commands. If these log
addresses are used with the SMART Read Log Sector command, the device shall return command aborted.
12.42.1.7 S.M.A.R.T. Write Log Sector (subcommand D6h)
This command writes 512 bytes of data to the specified log sector.
The 512 bytes of data are transferred at a command and the Sector Count value shall be set to one. The Sector
Number shall be set to specify the log sector address as shown above. If a Read Only log sector is specified, the
device returns ABRT error.
12.42.1.8 S.M.A.R.T. Enable Operations (subcommand D8h)
This subcommand enables access to all S.M.A.R.T. capabilities within the device. Prior to receipt of a S.M.A.R.T.
Enable Operations subcommand, Attribute Values are neither monitored nor saved by the device. The state of
S.M.A.R.T.—either enabled or disabled—will be preserved by the device across power cycles. When enabled, the
receipt of subsequent S.M.A.R.T. Enable Operations subcommands will not affect any of the Attribute Values.
Upon receipt of the SMART Enable Operations subcommand from the host the device enables S.M.A.R.T. capabil-
ities and functions and then saves any updated Attribute Values to the Attribute Data sector.
12.42.1.9 S.M.A.R.T. Disable Operations (subcommand D9h)
This subcommand disables all S.M.A.R.T. capabilities within the device including the attribute Autosave feature of
the device. After receipt of this subcommand the device disables all S.M.A.R.T. operations. Non self-preserved
Attribute Values will no longer be monitored. The state of S.M.A.R.T.—either enabled or disabled—is preserved
by the device across power cycles.
Upon receipt of the S.M.A.R.T. Disable Operations subcommand from the host, the device asserts BSY, disables
S.M.A.R.T. capabilities and functions, clears BSY, and asserts INTRQ.
After receipt of the device of the S.M.A.R.T. Disable Operations subcommand from the host, all other S.M.A.R.T.
subcommands—with the exception of S.M.A.R.T. Enable Operations—are disabled and invalid and will be aborted
by the device—including the S.M.A.R.T. Disable Operations subcommand—returning the error code as specified
in Table 153: “S.M.A.R.T. Error Codes” on page 244.
Any Attribute Values accumulated and saved to volatile memory prior to receipt of the S.M.A.R.T. Disable Opera-
tions command will be preserved in the device's Attribute Data Sectors. If the device is re-enabled, these Attribute
Values will be updated, as needed, upon receipt of a S.M.A.R.T. Read Attribute Values or a S.M.A.R.T. Save
Attribute Values command.
00h
Log directory
Read Only
01h
S.M.A.R.T. Error Log
Read Only
03h
Extended Comprehensive SMART Error
Log
See note
06h
S.M.A.R.T. Self-test Log
Read Only
07h
Extended Self-test Log
See note
09h
Selective self-test Log
Read/Write
80h-9Fh
Host vendor specific
Read/Write
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