You cannot use SAN access protocols to access FlexCache volumes. You can cache a volume that contains LUNs, but this configuration can change system behavior.
When you attempt to access, in a FlexCache volume, a directory that contains a LUN, the command sometimes returns "stale NFS file handle" for the LUN. If you get that error message, you should repeat the command.
If you use the fstat command on a LUN, fstat always indicates that the LUN is not cached. This is expected behavior.
