NetBackup 7.5 - VMware Backup - Snapshot Jobs stay active for long time even snapshot is already removed
we are using NetBackup 18.104.22.168 to Backup a VMware vCloud Infrastructure.
Backup works fine but there is a very long delay (at least 10min) between the point were the snapshot removal tasks completes (in vCenter) and the snapshot job finishes in the NBU activity monitor.
As VMware vCloud can deploy linked clones simulataneous snapshot operations can cause many IO cmds on the same VMDK. Therefore we set resource limits and restricted the number of parallel snapshot operations.
We set the "disableRestoreInfo" as recommended in http://www.symantec.com/business/support/index?page=content&id=TECH129568 but I don't know if this setting is also for NBU 7.5. Can't say if this has any effect at this time.
Is this a known issue? Any hints?
NBU is 22.214.171.124 with latest EEB
Windows 2008 R2
VMware vSphere & vCenter U1
VMware vCloud Director 1.5.1