Device Attribute Thresholds Data Structure - Hitachi T7K250 - Deskstar - Hard Drive Specifications

3 Off-line Read Scanning implemented bit
0 The device does not support Off-line Read Scanning
1 The device supports Off-line Read Scanning
4 Self-test implemented bit
0 Self-test routing is not implemented
1 Self-test routine is implemented
5-7 Reserved (0)
12.43.2.7 S.M.A.R.T. Capability
This word of bit flags describes the S.M.A.R.T. capabilities of the device. The device will return 03h indicating that
the device will save its Attribute Values prior to going into a power saving mode and supports the S.M.A.R.T.
ENABLE/DISABLE ATTRIBUTE AUTOSAVE command.
Bit Definition
0 Pre-power mode attribute saving capability. If bit = 1, the device will save its Attribute Values prior to
going into a power saving mode (Standby or Sleep mode).
1 Attribute Autosave capability. If bit = 1, the device supports the S.M.A.R.T. ENABLE/ DISABLE
ATTRIBUTE AUTOSAVE command.
2-15 Reserved (0)
12.43.2.8 Error logging capability
Bit Definition
7-1 Reserved (0)
0 The Error Logging support bit. If bit = 1, the device supports the Error Logging
12.43.2.9 Self-test failure check point
This byte indicates the section of self-test where the device detected a failure.
12.43.2.10 Self-test completion time
These bytes are the minimum time in minutes to complete the self-test.
12.43.2.11 Data Structure Checksum
The Data Structure Checksum is the 2's complement of the result of a simple 8-bit addition of the first 511 bytes in
the data structure.

12.43.3 Device Attribute Thresholds data structure

The following defines the 512 bytes that make up the Attribute Threshold information. This data structure is
accessed by the host in its entirety using the S.M.A.R.T. Read Attribute Thresholds. All multibyte fields shown in
these data structures are in byte ordering, that is, that the least significant byte occupies the lowest numbered byte
address location in the field.
Deskstar T7K250 Hard Disk Drive Specification
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