I have Veritas DataCenter 3.4, using a Breecehill Q6.210 (6 Quantum
7000's, 210 slot silo). Veritas kept randomly downing the drives every
day. What eventually fixed the problem was adjusting the picker inside
the tape library. When the Picker pulled a tape out of a drive and tried
to place the tape into it's slot in the silo, the bottom corner of the
tape would hit the bottom corner of the slot. After a couple of retries,
it would place the tape back in the drive, and Veritas would down the
drive. The picker had this problem with about half the slots in the
Library.   



Ravi Channavajhala wrote:
> 
> Hi All,
> 
> Since the upgrade to Veritas DataCenter 3.4, I'm running into
> an issue where the drives are going down very randomly.
> Has any one experienced similar problems?  The tape silo is
> STK-9710, total 10 drives.  I had STK replace the drives
> which reported being 'down' and did all the necessary maintenance.
> At this point, I like to see if any one has other suggestions?
> 
> I've tried virtually every trick in the book, so tpconfig etc.,
> are already done.  While we are at this topic, can anyone list
> all the possible scenarios where NB software can down a perfectly
> healthy drive, e.g., media mount problems etc.,  Thanks.
> 
> -ravi
> 
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Douglas Ritschel
Fujitsu Network Communications
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P.O. Box 1609
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