Error Message:

Cluster disk resource 'name' could not be mounted.

Explanation:

This error should not occur, because the raw file system should take ownership of the disk if none of the other file systems can mount; an I/O operation to the raw file system always returns success, and once the raw file system is mounted, operations can read/write to any block on the disk. The only possible cause is that the disk device isn't functioning properly.

User Action:

Check the disk device.