large delta files may cause decreased virtual machine and host performance.

VM expert out there,
I heard that running vm in delta disk will give performance issue. Is that true? I am looking for the theoretical explanation or kb article.
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sara2000Asked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Yes, running on a Snapshot does cause performance issues, and you should not really run on a snapshot disk in production for a long time (no longer than 2 days!).

HOW TO: VMware Snapshots :- Be Patient

and because performance is poor, on the virtual disk, and datastore, CPU will increase!
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