We are facing problem on virtual machines, which are added to Netbackup. NBU is failing job with error 156 and virtual machin is showing error on vsphere client saying "virtual Machine consolidation is needed". I saw some people had same issue when they upgraded to 188.8.131.52 but we are still using 184.108.40.206 We have not made any changes recently on netbackup or vmware side.
Can someone please help me to figure out what is the issue here.
I've seen this happen when the connection from the master/media dropped while a snapshot operation was in progress. The VM guest had to be shutdown to perform the snapshot consolidation.
Please check this note. Its seems to be VMware issue which can be resolved by updating.
If you see that you are unable to perform disk consolidation and get the error as Netbackup has locked the file, you can go to that vmware backup host and kill the vm related process. Sometimes, because of hung processes in the backup hosts can also cause issues while consolidation happens.