Hey @Matthew M. Magbee,
We are hardware agnostic so no specific NIC’s, drivers, or firmware (Unless you are using SAN dataserver). I wouldn't expect this to be a driver or firmware issue.
Assume you are talking about VMware?
Any reason you are mounting back to an ESXi host and not using proxyless? that gets around all the mount/unmount shenanigans although its not applicable for all configurations.
https://documentation.commvault.com/2022e/expert/36439_intellisnap_backup_operations_and_backup_copy_operations_run_without_proxy_esxi_host.html
In either case, this can sometimes happen when commvault tries to mount storage back to one host, but your array mounts it to a group instead, and all hosts see it. Then we dismount and destroy the snap clone and the other hosts freak out. If this is the case, you can try the nClusterMount key:
https://documentation.commvault.com/2022e/expert/36574_using_esx_server_for_snapshot_mount.html
I figured as much- but I did not want to leave that stone un-turned. I already have the nClusterMount key in use- I will keep digging. THanks Damian, I hope all is well.