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Gith
Contributor
Contributor

VMware Snapshots Taking A Long Time to Remove

We are experiencing an issue that I have not seen before in VMWare:

On our Nutanix system, if I take a snapshot and then remove it, it takes 3,4,5 seconds. The same VM migrated to the new Dell setup takes 11 minutes. If I make the VM thick and then Thin again, it will drop the time removal time to 35 seconds. This longer snapshot removal does not apply to all VMs but a good majority of them.
 
We have migrated VMs from 5+ year old Nutanix with some SSD and mostly spinning disk (using NFS3) to new Dell R640s with QLogic 32Gb FC to Pure FA/C 360 NVMe (using VMFS6.82). The Nutanix are using ESXi 6.5u3 and the Dell are using ESXI 7.0u2.
 
On the Nutanix, the VMs are Thin and we migrated them Re-Thinning them as it migrated from system to system versus using the existing format option into a datastore cluster with 10x 10TB volumes.
 
Has anyone across anything like this?
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