VM disk consolidation

I am not sure if this operation of disk consolidation will have any impact on the performance of the VM.

Yes, it's likely to get worse, than current performance which will be worse than a VM without a snapshot.

It depends what Service the VM performs, sometimes, e.g. an exchange server can drop Outlook connections whilst Merging Snapshots.

Also depends on many things, size of snapshot, current CPU, Memory assigned to VM, and also datastore type, e.g. RAID, SSD, Flash, SATA, SAS, SCSI, 7k, 10k, 15k etc

If you are concerned on the impact to service, it should be conducted out of core hours if possible.

... but be prepared to have it running for hours, depending on size.

I have run Disk Consolidation and it was quick...
The only thing I guess we need to watch for, is if there is a process that is running that can prevent Disk consolidation to complete successfully..
For instance we have backup that is causing the issues on VMs and , I had to Kill the backup process to do the Disk COnsolidation without any problem.

I did not check the size...I will check next time it happens

Thank you

No problems, glad to help you with your question. Have a good day.