Smart Command Set
SMART Command Set
SMART Feature Register Values
D0h Read Data D5h Read Log
D1h Read Attribute Threshold D6h Write Log
D2h Enable/Disable Autosave D8h Enable SMART Operations
D3h Save Attribute Values D9h Disable SMART Operations
D4h Execute OFF-LINE Immediate DAh Return Status
* If reserved size is below the Threshold, the status can be read from Cylinder register by Return Status command (DAh).
SMART Data Structure
BYTE F / V
Description
0-1 X Revision code
2-114 X Vendor specific
115-116 V Power cycle count of the device
117-361 X Vendor specific
362 V Off line data collection status
363 X Self-test execution status byte
364-365 V Total time in seconds to complete off-line data collection activity
366 X Vendor specific
367 F Off-line data collection capability
368-369 F SMART capability
370 F
Error logging capability
7-1 Reserved
0 1=Device error logging supported
371 X Vendor specific
372 F Short self-test routine recommended polling time (in minutes)
373 F Extended self-test routine recommended polling time (in minutes)