Netbackup Appliances is stucking over the night in the backup window

[Sisso]

Hello,

We are running netbackup master on a windows 2008 sp1 r2 server.

In addition, all our backups go to 4 appliances that function as Media servers.

Recently, we encountered long backup times.

Sometimes, backups get stuck, causing other backup jobs not to start running and finnally cause them to abend with a 196 code.

Please advise.

[RiaanBadenhorst]

Versions please.

[Sisso]

Appliance is 5230 and the netbackup on the appliance is 7.6.0.2

[RiaanBadenhorst]

Thanks, post of these stuck jobs detailed status so we can see wha'ts happening. I've not heard of related bugs on these versions (although 7.6.0.2 isn't the best version to be on......)
 

[watsons]

If it's affecting only Vmware backups, either the job is hanging (not progressing) or becoming much slower than usual, then it is probably this issue:

http://www.symantec.com/docs/TECH223790

One way to verify is checking if you have many bpbkar coredumps in /log/crash of appliance media server.

[Marianne]

This sounds to me like a fairly large environment with Windows master server probably underpowered and unable to control the environment?

What is master server specs? 
Memory?
Physical cpu's?

What kind of performance tuning was done on the master?

[Sisso]

Yes, this is big environment.

Actually, we still have the problem and symantec send us a support technitian to investigate this problem.

I will updat ehere when we will have any solution.

[Marianne]

This sounds like performance issues on the Windows master.

Docs you can have a look at while waiting for Support person to come out:

NetBackup 7.6 Best Practices: Optimizing Performance

Updated NetBackup Backup Planning and Performance Tuning Guide for Release 7.5 and Release 7.6

[Sisso · Accepted solution]

The problem was solved only recently. The issue was because too much streams and jobs that backuped to the same appliance. We did balance between all the appliances and the issues was solved.