Issue:

Environment consists of 2 nodes, SQL and SSAS 2008 can failover between the 2 nodes, and accessible for queries.

All the drives and mount points come online on the nodes after failover.

SQL Server Fails over perfectly.

The Windows Cluster has been validated and no errors in the log.

When failover from Node 1 to Node 2 we get the following error when attempting to process anything on Node 2:

File System Error: The following error occurred when opening the file ‘\\?\Z:\ASDATADIR\txn.vmp

Assessment:

In this scenario directory which hosts AS Data is mount points to another………..read more about it