To check for this, enable the "Verify label on unload" setting on the
jukebox definition.  It won't prevent the problem from happening, but it
will write messages to /nsr/logs/messages when a tape label is
overwritten and cannot be read.  The messages are something like:

NetWorker media: (info) expected volume '000002' got 'NULL'

Depending on your configuration, this is still possible in the latest
versions of Networker.  

-Teresa

-----Original Message-----
From: Legato NetWorker discussion [mailto:NETWORKER AT LISTMAIL.TEMPLE DOT EDU]
On Behalf Of Terry Lemons
Sent: Friday, November 12, 2004 8:33 AM
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Subject: Re: [Networker] SCSI bus resets rewind tape in SAN?

Hi Robert

Oh, yes.  I was burned by that one years ago.  Later versions of
NetWorker,
I believe, correctly detect and handle this problem.  Check out the
Release
Supplements.  I don't know if a patch was very made to the V6.1 stream
for
this problem.

tl

-----Original Message-----
From: Legato NetWorker discussion [mailto:NETWORKER AT LISTMAIL.TEMPLE DOT EDU]
On
Behalf Of Robert Maiello
Sent: Friday, November 12, 2004 8:21 AM
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Subject: [Networker] SCSI bus resets rewind tape in SAN?

Setup is Solaris 8, LTO1 drives connected via JNI HBAs,  Networker
6.1.3.

Has anyone had a problem where a scsi bus reset rewound the drive
without
Networker's knowledge?   Any logs or ways to trace this?

Thanks for any info.


Robert Maiello
Pioneer Data Systems

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