FUJITSU MHE2064AT - Manual (Page 132)

5.3 Host Commands
C141-E057-01EN 5-57
Table 5.7 Features Register values (subcommands) and functions
Features Resister Function
X’D0’ SMART Read Attribute Values:
A device that received this subcommand asserts the BSY bit and
saves all the updated attribute values. The device then clears the
BSY bit and transfers 512-byte attribute value information to the
host.
* For infomation about the format of the attribute value
information, see Table 5.8.
X’D1’ SMART Read Attribute Thresholds:
This subcommand is used to transfer 512-byte insurance failure
threshold value data to the host.
* For infomation about the format of the insurance failure
threshold value data, see Table 5.9.
X’D2’ SMART Enable-Disable Attribute AutoSave:
This subcommand is used to enable (SC register
≠
00h) or disable
(SC register = 00h) the setting of the automatic saving feature for
the device attribute data. The setting is maintained every time the
device is turned off and then on. When the automatic saving feature
is enabled, the attribute values are saved before the device enters the
power saving mode. However, if the failure prediction feature is
disabled, the attribute values are not automatically saved.
When the device receives this subcommand, it asserts the BSY bit,
enables or disables the automatic saving feature, then clears the
BSY bit.
X’D3’ SMART Save Attribute Values:
When the device receives this subcommand, it asserts the BSY bit,
saves device attribute value data, then clears the BSY bit.
X’D8’ SMART Enable Operations:
This subcommand enables the failure prediction feature. The setting
is maintained even when the device is turned off and then on.
When the device receives this subcommand, it asserts the BSY bit,
enables the failure prediction feature, then clears the BSY bit.
X’D9’ SMART Disable Operations:
This subcommand disables the failure prediction feature. The
setting is maintained even when the device is turned off and then on.
When the device receives this subcommand, it asserts the BSY bit,
disables the failure prediction feature, then clears the BSY bit.