The SMART DISABLE OPERATIONS command [B0h/D9h] shall disable all SMART operations. After completion of this command without error the device shall report command aborted for all other SMART commands (e.g., SMART DISABLE OPERATIONS commands), except for the SMART ENABLE OPERATIONS command and the SCT Command Transport commands, which shall be processed as defined. The state of SMART (i.e., enabled or disabled) shall be preserved by the device during all power-on reset events.

The SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE command [B0h/D2h] enables and disables the attribute autosave feature of the device. This command may either allow the device, after some vendor specified event, to save the device updated attributes to non-volatile memory or this command may cause the autosave feature to be disabled. The state of the attribute autosave feature, either enabled or disabled, shall be preserved by the device during all power and reset events.