Hitachi HTS541010G9AT00 - Travelstar 100 GB Hard Drive Specifications page 161

The 512 bytes of data are returned at a command and the Sector Count value shall be set to one. The LBA Low
shall be set to specify the log sector address.
Log sector address
01h S.M.A.R.T. Error Log
03h Extended Comprehensive
07h Extended self-test error log See note
09h Selective self-test log
80h-9Fh Host vendor specific
12.38.1.7 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 com-
mand and the LBA Low value shall be set to one. The LBA Low shall be set to specify the log sector address (See
Table 99: "S.M.A.R.T. Function Set (B0h)" on page 145). If a Read Only log sector is specified, the device returns
ABRT error.
12.38.1.8 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. 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 asserts BSY, enables
S.M.A.R.T. capabilities and functions, clears BSY, and asserts INTRQ.
12.38.1.9 S.M.A.R.T. Disable Operations (subcommand D9h)
This subcommand disables all S.M.A.R.T. capabilities within the device including the device's attribute auto save
feature. 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. Note that this subcommand does not preclude the device's power mode attribute
auto saving.
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 111: "S.M.A.R.T. Error Codes" on page 162.
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.
12.38.1.10 S.M.A.R.T. Return Status (subcommand DAh)
This subcommand is used to communicate the reliability status of the device to the host's request. Upon receipt of
the S.M.A.R.T. Return Status subcommand the device asserts BSY, saves any updated Attribute Values to the
reserved sector, and compares the updated Attribute Values to the Attribute Thresholds.
Content Type
Read Only
Read Only
Read/write
Read/Write
Travelstar 5K100 (Serial ATA) Hard Disk Drive Specification
149