However, we recommend keeping no more than three to four snapshots as more number can affect the performance. This means the larger the snapshot, the longer it takes to consolidate it.īefore moving forward, you need to know that you can only keep a maximum of 32 snapshots. The time taken to complete this process depends on the snapshot size.
Fixing “Virtual Machine Disks Consolidation is Needed” Errorįixing “Virtual Machine Disks Consolidation is Needed” Errorĭisk consolidation simply means deleting those redundant files that remain after a failed snapshot operation (restore, delete, delete all, etc.). Open VM Console "Unable to connect to the MKS. You must unmount these disks before attempting to bakup the virtual machine". Related Issue: VM backup failed with an error like, "one or more disks from virtual machine ******* is alreadymounted to the backup software VM. Note: However the Snapshot consolidation completed successfully but you may still need to remove the base disk from Backup Server/ Backup proxy Virtual Machine( Do Not Delete the Disks, Only remove them from this Virtual Machine). Now run the Snapshot consolidation and it will complete without any issue. Once disks are unlinked from the backup server / backup proxy VM then you need to run Snapshot consolidation on affected and this time it will consolidate all snapshots to base disk and complete without any issue.Ģ.In this method Storage vMotion the affected VM to another datastore (Right click on VM => Migrate => now you need choose migrate disks to another available datastore – this will clear lock on disk files of the virtual machine. Go to the VM settings of your backup Virtual server VM and check for the attached disks (check the same on backup proxy VMs also), you would find some extra disks there (affected VMs disks), now you need to unlink your vmdk files from his virtual machine ( Do Not Delete the Disks, Only remove them from this Virtual Machine). 
One can fix this issue by using one of these methods:ġ.
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