Issue: my backup team informed me that VADP level backup failed for one of my VM and error message showed as
Oct
13 19:02:00 s575mjikz005 logger: * VMname:*FULL* The following internal
error occurred: An error was returned from nsrvddk.exe: Error opening disk,
[datastore_] VM_test/VM_test-000001.vmdk: VDDK Error: Insufficient
permissions in the host operating system
Findings: Up on checking the Vcenter, the VM looks fine and I can able to create manual snapshot. but I cannot perform other VM features such as vMotion, clone, delete VM. when I tried to move VM to another folder given error message
the issue is here My domain account as well VADP backup account recently added to administrator group in vcenter windows machine ( windows local permission) and in the vcenter level, power user permission has given to windows machine administrator group which propagated power user permission to my account as well VADP account. ( even though my account and VADP account has administrator permission in vcenter level)
Solution: logged in to vcenter windows machine and removed my account as well VADP account from administrator group and now as usual, my account and VADP account got administrator permission and backup team able to perform VADP backup as well.
