After deploying the Cisco Nexus 1000v and moving VMs onto it, I noticed a new
folder called .dvsData in each of the datastores.
Within the .dvsData folder are files with information regarding the
port state of each VM using a dvport on the Cisco Nexus 1000v. The .dvsData folder is located on the same
datastore that the VM is registered. In the
event of a VMware High Availability (HA) event, the destination ESX host pulls the
dvPort state of the VM from the .dvsData folder.
In addition, each ESX host, has a local database that contains vDS information. (/etc/vmware/dvsdata.db) This allows the vDS to continue to run in the event vCenter is unavailable.
When deleting the
.dvsData folder, confirm there are no registered VMs within the datastore. Then proceed with the maintenance.
Thanks. That was very helpful.
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