Veeam Snapshot Removal Stuck with error : "VM needs disk consolidation".(Solved)

Problem:

VM1 (with big HDD) Snapshot removal task took  10.5 hours to complete. Once snapshot was removed, VM1 showed a warning in vCenter Summary that:

 "VM needs disk consolidation".  
Note: There was no snapshots left on VM1 under Snapshot Manager.

I tried to consolidate VM1 by going to VM > Snapshot > Consolidate but it gave the following error

"The maximum consolidate retries was exceeded for scsi0:1."
Solution:

I found that storage vMotion would resolve the disk consolidation issue and probably we won't need to consolidate the disk.

So I storage vMotion VM1 System Disk ( c: drive ) to another datastore. After the vMotion "VM needs disk consolidation" warning message was gone.

Then I started the VM1 Backup Job in veeam again Snapshot Removal took 12 mins but it went successful. The next Backup Job of VM1 took normal time to remove snapshot. 

So the issue is resolved ;-) .