Performance issues on VMWare backups.
Hi guy, I recently started having some issues with vmware backups, but for just one site.
Usually I would have about 20mbps speeds, and then they drop to less than 2mbps for no reason I could find.
If I restart the master server (the same one asociated with the vmware host), problem solved.
I tried looking for some eeb file, but no luck on that.
I need to upgrade to 7.6.0.4, but I am going on vacation in a week, and I don´t want to leave a new system unchecked.
Current environment is:
Master server - windows 2008 r2 - Netbackup 7.5.0.7 - hp library - data domain 670
Media server - windows 2003 - Netbackup 7.5.0.7 - hp library - data domain 670
ESX version is 5.1, need to upgrade to 7.6 to go to 5.5
all backups failing are vmware machines, going straight to cif on the dd unit.
Any help will be appreciated.
Thanks.
That the restart of the master solves the problem, indicates to me that there probably is too many jobs running at once.
I would check if there was a resource like CPU, memory (virtual, heap, pool) that was exhausted on the master server and on the media server if that is doing the writing.
Also there is a limit of about 4 streams from an ESX host in vsphere 5.1, before the performance drops
It might be less from the datastores, depending the disk system. I would start with a limit of 1 stream, and increase untill the performance decreases.
Don't know Data Domain, but could there be some internal job running that decreased the write performance ?