We also ran into sched problems with nbu 6.0, not as bad Ed. But most of them 
have been fixed with MP3 and the post MP3 patches. 
We have three systems using netbackup 6. One is very small and only saw one 
sched error with a 200 error code. The second system is medium sized and we saw 
a little bit of scheduler problems. All of which were fixed with the patches. 
We did gain one instance of a new error. But a number of old issues with nbu 
5.1 were improved with the upgrade to 6.0. 

We have one large system that only does netapp ndmp backups. This system had 
many different problems with netbackup 6.0
- Some were related to the new monitor interfaces, and these seem to be fixed. 
- Some were strange and we were able to work around them with touch files. 
- Some were a fall out of running a large system on a smp host. This were fixed 
by MP3
- We also had severe performance issues, which was a result of turning up the 
debug level on ndmp logs. 
We turned down the debug level and things improved. 35KB vs 35000KB backup rate 
to lto-2 tapes. 

So if you are going to move to nbu 6 on a good size smp backup server, I would 
suggest that the lowest level of code should be MP3.  

The new logging format does use up much more in the way of disk space. But they 
do seem to have more info for solving the old fashion problems. 

len

-----Original Message-----
From: veritas-bu-bounces at mailman.eng.auburn.edu [mailto:veritas-bu-bounces 
at mailman.eng.auburn.edu] On Behalf Of Wayne T Smith
Sent: Thursday, August 17, 2006 1:37 PM
To: veritas-bu at mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] Best NBU 5.1 Patch?

v5.1MP5 was significantly better than earlier MPs for us, though MP4 was 
good.

We wanted v6.0 for various reasons, but the problems with v6.0, many 
reported on this list, far outweigh any advantages (for us).  We keep 
waiting for the next v6.0 MP and hope that folks like Ed Wilts will give 
it a stamp of approval! (It hasn't happened thru v6.0MP3!)   Apparently 
raising the quality of v6.0 was one of the enhancements left on the 
design table. :-(

cheers, wayne

Major, Rusty wrote, in part,  on 8/17/2006 12:41 PM:
> We're going to upgrade very soon to 5.1 MPx. Is there a patch that's 
> better than the others? We're upgrading to make best use of disk 
> storage units and also to prepare for the move to 6.0 at some point.
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