We have the following configuration in our enterprise;
- Two physical servers ( both running windows server 2008 R2)
- The physical servers have been clustered (CLUSTER1).
- Six Virtual Machines ( two for each tier of our SharePoint 2010 installation)
- Two web front ends, two application servers, two database servers.
- The two database servers (running windows server 2008 R2) have been clustered (SQLCLUSTER2) and point to a SAN.
After an unexpected power failure, the SQLCLUSTER2 has refused to come online. The IP Address comes "Online" when turned on manually. The disks also come online when turned on manually using "Bring this resource online". But once the Cluster name is attempted to be brought online all other resources turn into "failed" state and the entire SharePoint portal becomes unavailable. See image below
Note: We have recently had a problem with one of our Domain Controller and had to be decommissioned one of the two(2) DC's. My investigation reveals that the decommissioned DC was used to create the Cluster Name Object (CNO) SQLCLUSTER2.
I have been battling to restore the cluster to normalcy for over a week now. But periodically (after some hours) all the resources turn to "failed" state and down goes our SharePoint portal.
Please any assistance anyone can offer to help resolve this issue would be highly welcomed.