The credentials found for virtual machine 'guest VM name' are incorrect. Verify the credentials and use dsmc SET PASSWORD -type=VMGUEST 'VM guest name' 'userid' 'password' to update the username and password.
The supplied credentials are incorrect. Failed to authenticate to guest VM using these credentials.
Processing stops
Use dsmc SET PASSWORD -type=VMGUEST 'VM guest name' 'userid' 'password' to update the username and password. And then retry the 'backup vm' operation.