I had a strange issue on two 2008 domain controllers. I was just taking a health check before I started my assigned task. I scrambled through the event logs for errors and found this one on both of them:
Okay, so there has been no system state backup of these servers in some time. The next thing I did was to check the backup. The costumer uses a cloud based backup system that uses VSS to take backup. Everything in the backup logs looked okay. I also verified that system state was checked, and it was. I then checked if there was any newer version of the backup software. But the customer had the most recent one. Yeah…. What now?
I then looked again over the event logs on the domain controllers and found this one at same time the backup runs:
“ Volume Shadow Copy Service error: Unexpected error VSS_E_WRITER_STATUS_NOT_AVAILABLE “
I than did a hotfix search and finally stumbled over this one:
The most time consuming was to find the right hotfix. There are pretty many when you search for VSS and 2008.
I then installed this hotfix on both and booted them. Then I retried the backup and the problem went away. And of course Directory services stopped complaining about the no backup of directory partition issue.
Hope this helps someone else with the same problem.