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HP B6960-90078 User Manual

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Troubleshooting

Troubleshooting Devices and Media

Chapter 12

576

If you receive media related errors during write operations, or if the
medium is marked as poor, you can check the

media.log

file for media

errors statistics. You can do this also when receiving media related
errors during read operations.

Media.log

file contains the following error statistics:

where

n

stands for number of errors.

If a parameter has the value

-1

, it means that the device does not

support this statistic parameter. If all parameters have the value

-1

, it

can either mean that during processing the tape quality statistics an
error occurred or the device does not support medium quality statistics
at all.

Although the tape statistical results are reported in bytes for

total

bytes processed

, this is not true for all devices. LTO and DDS devices

report data sets and groups, respectively, and not bytes.

Examples

Here are a few examples from the

media.log

file:

• Log sense write report for DLT/SDLT devices - total bytes processed.

Media ID from tape= 0fa003bd:3e00dbb4:2310:0001; Medium Label=
DLT10; Logical drive= dlt1; Errors corrected no delay= 0; Errors
corrected delay= 0; Total= 13639; Total errors corrected= 13639;
Total correction algorithm processed= 0; Total bytes processed=
46774780560; Total uncorrected errors= 0

46774780560 bytes of native data after compression were processed
(a full DLT8000 tape).

Error statistics

Explanation

errsubdel=n

errors corrected with substantial delays

errposdel=n

errors corrected with possible delays

total=n

total number of re-writes

toterrcorr=n

total number of errors corrected and
recovered while writing

totcorralgproc=n

total number of times correction
algorithm processed

totb=n

total bytes processed (write)

totuncorrerr=n

total number of uncorrected errors (write)