I have been fighting the same issue myself.  I even made a utility that
takes the disks out of the storage unit group when they get within a certain
% toward full.  Later it puts them back in when they have enough space
again.

Unfortunately, netbackup does not seem to operate disk storage like tape.
It fills it up and either fails or hangs.  I had thought my utility would
make the retry go to another disk but it seems that once it is assigned to a
drive it stays there.  My utility does keep jobs from queuing to the full
disk but doesn't help with disks that fill.

I would really like to see Veritas step up on this issue and do something to
make it work more robustly.

-----Original Message-----
From: Christina Whitaker [mailto:syscmw AT panther.Gsu DOT EDU] 
Sent: Thursday, November 14, 2002 11:30 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] backing up to disk

Hello...

I wanted to ask about using netbackup to back up to disk. I have gone
through the mailing list archives and really didn't see a definite
answer about this issue.

We are currently using Netbackup 3.4 on Solaris8 and have SAN disk
attached to our master/media server. We created a bunch of disk pool
filesystems (disk1, disk2, disk3, etc).  We want to keep our fulls on
tape and our incrementals on disk. We tried a test yesterday and
filled up the first filesystem disk1 and found out that NBU would not
move on to the next disk filesystem. 

Is there a way to configure NBU so that if it fills up a filesystem,
it will start writing to the next filesystem that has been designated
for writing? Has anyone successfully implemented a backup-to-disk
system using Netbackup?

Thanks for any help you can provide.
Chris
-- 
Christina Whitaker      Georgia State University
404-651-3636            Systems Administrator
whitaker AT gsu DOT edu        Information Systems & Technology
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