Fujitsu MHA2021AT Product Manual page 119

Interface
Attribute
ID
10
12
13 to 199
200
201 to 255
Status flag
Bit 0: If this bit is 1, the attribute is within the insurance range of the device
Bits 1 to 15: Reserved bits
Current attribute value
The current attribute value is the normalized raw attribute data. The value
varies between 01h and 64h. The closer the value gets to 01h, the higher the
possibility of a failure. The device compares the attribute values with
thresholds. When the attribute values are larger than the thresholds, the
device is operating normally.
Attribute value for the worst case so far
This is the worst attribute value among the attribute values collected to date.
This value indicates the state nearest to a failure so far.
Raw attribute value
Raw attributes data is retained.
Failure prediction capability flag
Bit 0: The attribute value data is saved to a medium before the device enters
Bit 1: The device automatically saves the attribute value data to a medium
Bits 2 to 15: Reserved bits
Check sum
Two's complement of the lower byte, obtained by adding 511-byte data one
byte at a time from the beginning.
Insurance failure threshold
5-58
Number of retries made to activate the spindle motor
Number of power-on-power-off times
(Reserved)
Write error rate
(Unique to vendor)
when the attribute exceeds the threshold.
If this bit is 0, the attribute is outside the insurance range of the
device when the attribute exceeds the threshold.
power saving mode.
after the previously set operation.
Attribute name
C141-E042-01EN