> I believe that this is only a limitation for RHEL4. RHEL5 should have a > fix that allows dm-multipath to properly pass ioctls to all devices. Hello, One problem is registration, but another problem is un-registration fe. when there is failover from one HBA to another and failback. Third problem is active-standby LB for two or more HBA, and how to handle this. Best Regards Maciej Bogucki -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster