Yesterday I got a problem while migrating a fileserver cluster from Windows 2003 to Windows 2008 R2.
We wanted to migrate a big fileserver cluster with several volumes by mirroring the SAN LUNs, break the mirrors and mount them to the new Windows 2008 R2 fileserver.
After mounting the partitions to the new cluster we set up a new virtual fileserver and created some shares. With one partition/share we run in the following error:
The shared ressource is not available.
After some investigation we figured out that the SYSTEM group doesn’t had permissions on the partition at root level so the cluster service running with local system account can’t initialize the share.
After adding SYSTEM at root level with full access sharing of this partition was possible: