HP C2246 Technical Reference Manual page 124

Access Log
Access Count. This field indicates the number of media positionings since the last hardware
error occurred. This field is reset to zero each time a Hardware Error log entry is added to the
log. If no Hardware Error log entries are included in the ACCESS LOG data, this field reflects
the total number of media accesses. If Hardware Error log entries are included, this field and
the values in corresponding Access Count fields in those entries must be combined to yield the
total number of media accesses. The number of accesses represented by the Access Count field
are as follows:
Access Count Range Values
Value
Minimum of Maximum of
Value Minimum of Maximum of
(HEX} Access Range Access Range (HEX) Access Range Access Range
0 No Accesses No Accesses 8 500,001 1,000,000
1 1 1 9 1,000,001 5,000,000
2 2 10 A 5,000,001 10,000,000
3 11 100 B 10,000,001 50,000,000
4 101
1,000
c
50,000,001 100,000,000
5 1,001 10,000
D 100,000,001 500,000,000
6
10,001 100,000
E
500,000,001 1,000,000,000
7 100,001 500,000
F
1,000,000,001 >l,000,000,001
Blocks Read Count. This field is the count of the blocks read over the entire disk drive. If the
PHYS bit in the CDB is set to zero (0), the count represents logical blocks. If PHYS is set to
one (1), the count represents physical blocks.
First Retry Count. This field indicates the number of instances when the data error recovery
algorithm was forced to perform data read retries and the data was recovered on the first
retry.
Multiple Retry Count. This :field indicates the number of times data was not recovered on the
first retry. Note that this count is incremented only once per complete recovery action, not
once for
eac~
retry within one recovery action.
B-4 Vendor Unique Command Descriptions
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