Hello

First thing I would do was to measure disk read speed and network throughput 
outside netbackup to know what speed to expect.

There has been a limitation at about 220 MB/s on vadp in the vmware kernel 
earlier in 5.0, don't know if 5.5 has something similar

One thing I seen have speed VMWARE backup greatly, is increasing the raw buffer 
size to the recomended size (1 MB back in 5.0)

Changing number and size of buffers on the media servers can also improve the 
speed, if it is not near the lowest of the ones measured outside netbackup

Regards
Michael


> Den 5. apr. 2016 kl. 11.52 skrev matrixdot <nbu-forum AT backupcentral DOT 
> com>:
> 
> Hi folks,
> 
> I was wondering if you could assist in providing some steps to take to check 
> for VMWare Netbackup  performance issues. We are on 10Gig infrastructure and 
> using ESXi 5.5. Our Netbackup environment is Netbackup 7.6.2 on a 2012 Media 
> servers with a 2008 Master server.
> 
> On our VM backups we are getting poor backup speeds. Can you please assist me 
> in identifying what to look at?  I read that the VM kernel has a limitation 
> but we not even getting close to it.
> 
> Thanks in Advance
> 
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