Symptoms:
VRA upgrade failed with the following error:
Failed: Object reference not set to an instance of an object.
Failed: Object reference not set to an instance of an object.
Cause:
vCenter could not communicate with the Profile-Driven Storage service (PBM). You may see the following in the vCenter logs:
PBM error occurred during PreCreateCheckCallback: vmodl.RuntimeFault;
PBM error occurred during PreCreateCheckCallback: vmodl.RuntimeFault;
Solution:
Restarting vCenter corrected the issue.