Hitachi HDS723020BLA642 Specifications page 220

Status Flag Definitions
Bit Definition
0 Pre-failure/advisory bit
0 An Attribute Value less than or equal to its corresponding Attribute Threshold indicates an
advisory condition where the usage or age of the device has exceeded its intended design
life period.
1 An Attribute Value less than or equal to its corresponding attribute threshold indicates a
pre-Failure condition where imminent loss of data is being predicted.
1
On-Line Collective bit
0 The Attribute Value is updated only during Off-Line testing
1 The Attribute Value is updated during On-Line testing or during both On-Line and Off-Line
testing.
2-5 Vendor specific
6-15 Reserved (0)
Normalized Values: The device will perform conversion of the raw Attribute Values to transform them into
normalized values, which the host can then compare with the Threshold values. A Threshold is the excursion
limit for a normalized Attribute Value.
11.43.2.3
Off-Line Data Collection Status
The value of this byte defines the current status of the off-line activities of the device. Bit 7 indicates Automatic
Off-Line Data Collection Status.
Bit 7 Automatic Off-Line Data Collection Status
0 Automatic Off-Line Data Collection is disabled.
1
Automatic Off-Line Data Collection is enabled.
Bits 0 thru 6 represents a hexadecimal status value reported by the device.
Value Definition
0 Off-line data collection never started
2 All segments completed without errors.
4 Off-line data collection suspended by interrupting command
5
Off-line data collecting aborted by interrupting command
6
Off-line data collection aborted with fatal error
Hitachi hard disk drive specifications
220