IBM IC35L020 Hard Drive Specifications - Page 176

S.M.A.R.T. Read Log Sector Subcommand D5h

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15.32.6 S.M.A.R.T. Read Log Sector (Subcommand D5h) This command returns the specified log sector contents to the host. The 512 bytes data are returned 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. Log sector address 01h 06h 80h-9Fh Content S.M.A.R.T. Error Log S.M.A.R.T. Self-test log Host vendor specific Type Read Only Read Only Read/Write Figure 121. Log sector addresses 15.32.7 S.M.A.R.T. Write Log Sector (Subcommand D6h) This command writes 512 bytes data to the specified log sector. The 512 bytes 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 in the preceding figure. If Read Only log sector is specified, the device returns ABRT error. 15.32.8 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. Once 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 S.M.A.R.T. Enable Operations subcommand from the host the device enables S.M.A.R.T. capabilities and functions and then saves any updated Attribute Values to the Attribute Data sector. 15.32.9 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 disables S.M.A.R.T. capabilities and functions and then saves any updated Attribute Values to the Attribute Data sector. 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 Figure 132 on page 174. Any Attribute Values accumulated and saved to volatile memory prior to receipt of the S.M.A.R.T. Disable Operations command will be preserved in the Attribute Data Sectors of the device. 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 S.M.A.R.T. Save Attribute Values command. Deskstar 60 GXP Hard disk drive specification 162

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15.32.6
S.M.A.R.T. Read Log Sector (Subcommand D5h)
This command returns the specified log sector contents to the host.
The 512 bytes data are returned 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.
Read/Write
Host vendor specific
80h-9Fh
Read Only
S.M.A.R.T. Self-test log
06h
Read Only
S.M.A.R.T. Error Log
01h
Type
Content
Log sector address
Figure 121. Log sector addresses
15.32.7
S.M.A.R.T. Write Log Sector (Subcommand D6h)
This command writes 512 bytes data to the specified log sector.
The 512 bytes 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 in the preceding figure. If Read
Only log sector is specified, the device returns ABRT error.
15.32.8
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. Once 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 S.M.A.R.T. Enable Operations subcommand from the host the device enables
S.M.A.R.T. capabilities and functions and then saves any updated Attribute Values to the Attribute Data
sector.
15.32.9
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 disables
S.M.A.R.T. capabilities and functions and then saves any updated Attribute Values to the Attribute Data
sector.
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 Figure 132 on page 174.
Any Attribute Values accumulated and saved to volatile memory prior to receipt of the S.M.A.R.T. Disable
Operations command will be preserved in the Attribute Data Sectors of the device. 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 S.M.A.R.T. Save Attribute Values command.
Deskstar
60 GXP Hard disk drive specification
162