Netbackup performance issues

[dpx_99]

Hi Experts,

I'm facing performance issues in my backup env. I tried to go through with tuning guides but it didn't help much.

my env. netbackup master/media server version 7.7.3

1 master server [virtual machine]  OS :windows 2008 standard R2

3 media servers [Dell R510, Dell 720] including 8 drives [Dell tl400]  OS windows 2012

I've seen that VM backups are really slow and takes a long time to complete which always delayed the duplication [destaging to tape drive and DR site].

all clients are behind firewall, which means data pass through firewall -ofc it slow down the whole process.

I am looking for some suggestions if i can improve the performance , might to implement backup vlan's or any other idea's.

Thanks,

dpx

[dpx_99]

@Nicolai,
I've tried to apply these values (size/number buffer) but I got worse performance ever I seen in my environment. After applying these values I was able to see new value in backup job logs.