ADSM-L

help with lto cart problem - corrupted tape directory

2004-09-29 23:07:17
Subject: help with lto cart problem - corrupted tape directory
From: Len Boyle <SNOLEN AT VM.SAS DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 29 Sep 2004 22:57:39 EDT
Good Evening

I am seeing the following error on a lto gen 2 cart. Of course murphy says that
 this is a tape that we need for a restore.

So the restore is taking forever. Which brings up several questions.

1) My fuzzy memory says that there was a special command for adsm/tsm to handle
 this probem with 3590's Is there a tsm command for lto?

2) Does anyone have a benchmark time for how long it would take to do an audit
volume on a lto gen 2 cart to clear this problem? I assume that would clear the
the problem.

Does the restore clear the problem for future use, or does it have to be a
read of the tape from bot to eot?

Can this cart be damaged such that the directory can not be repaired?


I tried a google search -- but only found some c code to monitor scsi devices.

I have opened a pmr, but at first pass the andr89502 comes up with hardware
errors.

----------------------------------------------------------------------
ANR8950W Device mt0.0.0.7, volume UT0061L2 has issued the

 following Warning TapeAlert: The tape directory on the
 tape cartridge has been corrupted.  File search
 performance will be degraded.  The tape directory can be
 rebuilt by reading all the data on the cartridge.

--------------------------------------------------------------------------

Thanks for any insight -- len boyle

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