Hitachi HDS723020BLA642 Specifications page 100

Byte Size
1:0 Word
3:2 Word
5:4 Word
6 Byte
7 Byte
8 Byte
9 Byte
29:10 Byte[20]
31:30 Word
33:32 Word
Field Name
Format
Version
Sampling
Period
Interval
Max Op Limit
Over Limit
Min Op Limit
Under Limit
Reserved
Queue Size
Queue Index
Hitachi hard disk drive specifications
100
Description
Data table format version (=0002h)
Absolute HDA Temperature sampling period
in minutes.
0000h indicates sampling is disabled.
Timer interval between entries in the history
queue.
Maximum recommended continuous
operating temperature. This is a one byte 2‟s
complement number that allows a range
from -127°C to +127°C to be specified. 80h
is an invalid value. This is a fixed value.
Maximum temperature limit. This is a one
byte 2‟s complement number that allows a
range from -127°C to +127°C to be
specified. 80h is an invalid value. This is a
fixed value.
Minimum recommended continuous
operating limit. This is a one byte 2‟s
complement number that allows a range
from -127°C to +127°C to be specified. 80h
is an invalid value. This is a fixed value.
Minimum temperature limit. This is a one
byte 2‟s complement number that allows a
range from -127°C to +127°C to be
specified. 80h is an invalid value. This is a
fixed value.
Number of entry locations in history queue.
This value is 128.
Last updated entry in queue. Queue Index is
zero-based, so Queue Index 0000h is the
first location in the buffer (at offset 34). The
most recent temperature entered in the
buffer is at Queue Index + 34.
See Note 1 and Note 2.