4 smart command set – ADLINK ASD8P-MT1 Series User Manual
Page 34

Page 34 of 43
ASD8P-MT1 Specification
- SECURITY FREEZE LOCK
The drive can be secured by executing SECURITY FREEZE LOCK command- After
command completion, the drive will be set to Frozen mode to prevents changes to all
Security states and any other commands to it will be aborted- The Frozen mode can be
disabled by power-off or rebooting-
5.4 SMART Command Set
The SMART command Set 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 SMART Feature Set command has several separate
commands which are selectable via the device's Features Register when the SMART Feature Set
command is issued by the host- To select a command, the host must write the subcommand code
to the device's Features Register before issuing the SMART Feature Set command-
The ASD8P-MT1 PCIe Gen2 x 2 Lane SSD supports the SMART command set, which consist of
- SMART ENABLE OPERATIONS
- SMART DISABLE OPERATIONS
- SMART ENABLE/DISABLE AUTOSAVE
- SMART RETURN STATUS
The ASD8P-MT1 PCIe Gen2 x 2 Lane SSD supports the following optional commands-
- SMART EXECUTE OFF-LINE IMMEDIATE
- SMART READ DATA
- SMART READ LOG
- SMART WRITE LOG
SMART ATTRIBUTE VALUES (READ DATA) (Code D0h)
This subcommand returns the device's Attribute Values to the host. Upon receipt of the SMART
Read Attribute Values subcommand from the host, the device asserts BSY, saves any updated
Attribute Values to the Attribute Data sectors, asserts DRQ, clears BSY, asserts INTRQ, and then
waits for the host to transfer the 512 bytes of Attribute Value information from the device via the
Data Register.
SMART READ ATTRIBUTE THRESHOLDS (Code D1h)
This subcommand returns the device's Attribute Thresholds to the host. Upon receipt of the
SMART Read Attribute Thresholds subcommand from the host, the device reads the Attribute