Down all the NDMP drives and then use robtest to move a tape into a
drive.  Then unload the tape and move it back.  The unload opens
the tape device to eject the tape - if it fails then the robot
drive number does not match the NDMP tape device name that you
have configured.


>From: "Trotman, Kevin" <Kevin_Trotman AT afcc DOT com>
>To: "'Dennis Dwyer'" <dfdwyer AT tecoenergy DOT com>, 
veritas-bu AT mailman.eng.auburn DOT edu, scurry AT yahoo-inc DOT com
>Subject: RE: [Veritas-bu] NB 4.5 + Netapp Filer (6.1.X) issues
>List-Subscribe: <http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu>, 
<mailto:veritas-bu-request AT mailman.eng.auburn DOT edu?subject=subscribe>
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>List-Archive: <http://mailman.eng.auburn.edu/pipermail/veritas-bu/>
>Date: Wed, 10 Jul 2002 08:54:34 -0500
>
>
>Randomly shuffling tapes like this is sometimes a sign that the Netbackup
>has the wrong device driver listed for the particular drive. This usually
>becomes more of an issue if you are using SAN or a fibre to SCSI bridge. But
>tape drives 1 (/dev/rmt1) and 2 (/dev/rmt/2) somehow get configured with the
>wrong robot slot (drive 1 and two get their positions switched when you mark
>which drive is in which position in the robot) or you list /dev/rmt2 as the
>driver for drive 1 and /dev/rmt1 as the driver for drive 2. Somewhere there
>*may* be a misconfiguration here making it impossible for Netbackup to open
>the tape once its mounted. This is even easier to get wrong with a netapp,
>since its harder to test the drives.  ;)
>
>Kevin
>
>-----Original Message-----
>From: Dennis Dwyer [mailto:dfdwyer AT tecoenergy DOT com]
>Sent: Wednesday, July 10, 2002 7:36 AM
>To: veritas-bu AT mailman.eng.auburn DOT edu; scurry AT yahoo-inc DOT com
>Subject: Re: [Veritas-bu] NB 4.5 + Netapp Filer (6.1.X) issues
>
>
>All I can tell you is I worked temporarily for a government site that was
>looking at (evaluating) NetBackup in February of 2001 because of it's
>supossed NDMP capabilities and we experienced similar problems. We were also
>not encouraged by Veritas assistance on this one however the NetApp tech
>support was pretty good. Since NDMP was the driving force behind acquiring a
>backup product, we did NOT choose NetBackup.
>
>Regards,
>Dennis Dwyer
>
>>>> Steve Curry <scurry AT yahoo-inc DOT com> 07/09/02 23:07 PM >>>
>Thanks ahead of time for reading my email.  
>
>
>Recently we upgraded a small backup farm to NB Data Center 4.5 backing
>up NetApp filers running 6.1.2 and 6.1.3.  We have since seen some very
>bizarre behavior while doing NDMP backups.  I'm curious if anyone else
>runs a similar environment and if so have you had any issues?
>
>The main problems we seem to have is that backups randomly just stop and
>the filer just starts mounting media in a random cycle. Or backups won't
>start at all, the filer just cycles through all the available media and
>then the backup fails because the backup window closes.
>
>I have opened a case with Veritas, but have been very discouraged with
>the response.
>
>
>Cheers,
>
>
>Steve Curry
>Yahoo! Inc.
>
>
>
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__________________________________________________________________________
Steve Kappel                       steve.kappel AT veritas DOT com
VERITAS Software (Engineering)     steve AT stevekappel DOT com (Personal)