Table 113 Status Flag Definitions - Hitachi HTS542516K9SA00 Specifications

Bit Flag Name
0
Pre-Failure/Advisory bit
1 On-Line Collective bit
2-5 Reserved bits
6-15 Reserved bits

Table 113 Status Flag Definitions

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. In normalizing the raw data, the
device will perform any necessary statistical validity checks to ensure that an instantaneous raw
value is not improperly reflected in the normalized Attribute Value (i.e., one read error in the first 10
reads being interpreted as exceeding the read error rate threshold when the subsequent 1 billion
reads all execute without error). The end points for the normalized values for all Attributes will be 1
(01h) at the low end, and 100 (64h) at the high end for the device. For Performance and Error Rate
Attributes, values greater than 100 are also possible, up to a maximum value of 253 (FDh).
14.39.2.3
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
Automatic Off-Line Data Collection is disabled.
0
Automatic Off-Line Data Collection is enabled.
1
Bits 0 thru 6 represents a hexadecimal status value reported by the device.
Value Definition
Off-line data collection never started
0
2 All segments completed without errors. In this case, current segment pointer equals to total segments
required.
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
14.39.2.4
Bit Definition
0-3 Percent Self-test remaining
An approximation of the percent of the self-test routine remaining until completion in ten percent
increments. Valid values are 0 through 9.
4-7 Current Self-test execution status
0 The self-test routine completed without error or has never been run
1 The self-test routine aborted by the host
The self-test routine interrupted by the host with a hard or soft reset
2
3 The device was unable to complete the self-test routine due to a fatal error or unknown test error
The self-test routine completed with unknown element failure
4
The self-test routine completed with electrical element failure
5
6 The self-test routine completed with servo element failure
7 The self-test routine completed with read element failure
Off-Line Data Collection Status
Self-test execution status
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5K250 (SATA) OEM Specification
Definition
If 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.
If bit = 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.
If bit = 0, the Attribute Value is updated only during
Off-Line testing.
If bit = 1, the Attribute Value is updated during On-Line
testing or during both On-Line and Off-Line testing.
may either 0 or 1
Always 0