On our cx4-480, we have a clone that is mapped to a LINUX RHEL 6 server.  The source of the clone is a Windows server.  When the clone is syncing, we are getting multipathing errors and utilization on the box is high, when the clone is fractured, we do not get the errors and the utilization goes back to normal.

When this LINUX server was at RHEL 4, we did not experience this issue, only since we've gone to RHEL 6.  The CLARiiON connectivity setup has not changed (ie. failover mode was the same), the only thing changed is the level of Red Hat.

Has anyone experienced anything like this?  EMC Support is shooting blanks at this point.