My client is having a problem with VMs consolidating at the end of Veeam backups. I have to try and consolidate out of hours with the VM offline to run it quicker which is not ideal. They have 3 hosts with ESXi 5.5, vCenter HA. The problem is occurring on 4 VMs (Exchange, vCenter and DC and app server). They sit on different hosts, one on different storage. I am not an expert on vmware but from what I've read, this could be an issue with orphaned snapshot files but once I run consolidation, the VM is back to production and everything is fine until the backup runs again.
It is a common issue with all the backup platforms.
Which type of datastore these VMs are residing, kindly move them to high performance datastore.
vSphere may report that consolidation is needed in case there is a snapshot on the disk which should be deleted, but the deletion process is stuck in the Consolidation state for one of the following reasons: