On Wed, Dec 21, 2005 at 08:51:45AM -0700, King, Cheryl wrote:
I have two Solaris 8 master servers running NetBackup 5.1 MP3S2. They
keep running out of memory after a few months. I'm wondering if anyone
else has this problem and if they fixed it. It started some time after
going to v5.1 I think. Maintenance hasn't fixed it.
We've been seeing this as well on Solaris 9 with NBU 5.0. We're
currently at MP6.
Any ideas on what's causing it or how I could find out what's causing
it? When it runs out of memory it's always during regular backups.
Backups take memory so they're victims. We see a nice jump in swap
utilization every time our main windows open at 6pm.
Since I haven't seen any discussion about this on this list I'm assuming
regular scheduled backups isn't the cause.
The only way to get back swap space is to boot the server.
Add swap :-). That's our workaround until we can upgrde the server with
a new box (unfortunately our 420 is maxed out for memory already).
We run the rman Oracle instance on our master server and it appears to
be part of the culprit. We had it off for a while and we were much
better. We don't know if it's the straw that breaks the camel's back or
if it's the cause.
NetBackup really doesn't like to run out memory (not that I blame it
much) - all the jobs terminate with a 150.
Are other Solaris admins experiencing the same issues? Does NetBackup
just take that much memory to run?
I have heard that NBU 6 takes a lot of memory than NBU 5 but haven't
been able to validate that yet.
.../Ed
I ran into this problem on Solaris 9 and the problem kept getting worse.
It is now somewhat resolved
What was casuing the problem --- there are possibly two culprits --
1) bpschedule takes up a huge chunk of processor and nothing gets
started --- There is a fix in 5.1 MP4 according to Symantec/Veritas
2) NIC Trunking --- this was our problem and there is no immediate fix.
I spoke with Sun engineers at length --- I got two solutions --- one was
to update to the latest patch --- which doesn't work and has since been
pulled. The other is to downgrade to the previous patch level.
Now my NBU servers were brand new V440's so I trunked them. The problem
is the downgraded trunking software does not work. So I am running on a
single NIC on my Master server. The 2 media servers are not affected ---
It's a volume related issue --- so it explains your observation.
I was able to acquire a spare V440 and will be testing Solaris 10 which
I am assured by SUN has better trunking software and the TCP/IP stack is
about 30% faster.
I do have a script that I run to determine if the kernel is taking too
much memory --- it should normally take less than 15%, but once it
starts growing you know you have a problem.
I empathize with you since it worked on this problem for 2 months and
could not find anything. I finally called our solution provider and we
were able to get both Sun and Symantec involved...
I hope this helps
--
Ed Gurski [EMAIL PROTECTED]
___
Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
