I was wondering if anyone has started to use the stgpool CRC checks and
validate protocol options available in TSM 5.1.x?

Recently I discovered upon a data restoration that a few tapes had bad
data.  Indicated by a 'data integrity error'.

I was able to trace down the cause (I think) to a bad disk that was in a
disk storage pool a few weeks back, and that those files were written to
the particular tape during a migration process.

I called TSM tech support and they seemed to indicate that TSM doesn't do
any sort of data read/write checking unless those options are turned on.  I
don't ever remember those options before verision 5, so it makes me wonder
how I never ran into any problems like this before.  (I have had bad
disks/tapes during migration before and never had a data integrity error).

So.  is anyone using those CRC checks or validate protocol options and does
it work have any side affects, slow things down etc?

Thanks

Matthew Glanville
[EMAIL PROTECTED]

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