275
Western Digital Hard Disk Drive OEM Specification
State field contains a value indicating the device state when command was issued to the device.
Standby (If the EPC feature set is enabled, Standby is standby_y or standby_z)
Active/Idle
(If the EPC feature set is enabled, Active/Idle is idle_a or idle_b or idle_c)
SMART Off-line or Self-test
Note: The value of x is vendor specific.
11.51.6 Self-test log data structure
The following defines the 512 bytes that make up the Self-test log sector. All multi-byte fields shown in these data
structures follow the ATA/ATAPI-7 specifications for byte ordering.
Self-test execution status
Self-test failure check point
Note: n is 0 through 20
Table 239 Self-test log data structure
The data structure contains the descriptor of Self-test that the device has performed. Each descriptor is 24 bytes
long and the self-test data structure is capable to contain up to 21 descriptors.
After 21 descriptors have been recorded, the oldest descriptor will be overwritten with new descriptor.
Self-test index points the most recent descriptor. When there is no descriptor the value is 0. When there is
descriptor(s) the value is 1 through 21.
To Next Page
Loading...
