Hey Ty,

Don't quote me on this but we did see some issues like this back in the day
with 6.1.3.  What would happen is NetWorker was waiting on let's say 6 tapes
for a particular pool.  After it got one loaded a very high number of
sessions went to that first tape drive.  This meant that it basically
ignored ALL the definitions setup for that drive.  We did talk to Legato
about this but we only saw it happen a few times, less than 3, and really
did noting more with it.  It is interested that this type of bug is still
around in 7.1.1 though.  It sounds like under certain conditions NetWorker
completely ignores any drive or parallelism settings.

Hope this at least helps in proving that your are not crazy :)


Chad Smykay, RHCE, LCNA
Systems Storage Administrator
Rackspace Managed Hosting (TM)


-----Original Message-----
From: Legato NetWorker discussion [mailto:NETWORKER AT LISTMAIL.TEMPLE DOT EDU] 
On
Behalf Of Ty Young
Sent: Wednesday, May 19, 2004 9:30 AM
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Subject: [Networker] 7.1: target sessions ignored when relabelling
recyclable tapes

NetWorker 7.1, Solaris 8   (this is a server, or more properly, storage
node issue)

Scenario:  backups underway, and server is waiting for some quantity of
recyclable tapes (let's say 8.)   Upon loading recyclable tapes, nsrd
makes some nsrjb requests to re-label 8 tapes.  As soon as the first one is
labelled, however, it appears that not only is it loaded into a drive for
writing, but that a majority, if not all, of the suspended sessions get
routed to this one tape (i.e., target sessions for whatever drive
appears to be ignored.)   The result is that we may see as many as 25-30
streams going to one tape, while the remaining 7 newly-relabelled tapes sit
idle in their drives.

Anybody else seen this behavior?

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