should work just fine, we had Hitachi and EMC connected to the same box, no issues. One time we had some issues and EMC tech told us we had to isolate Hitachi storage to its own HBAs, we told him we were not doing that ..so he backed away and continued troubleshooting the problem ( which had nothing to do with multiple vendors sharing the same HBAs)
We have a number of HP-UX 11.23 servers connected to CLARiiONs with PowerPath.  Can we connect the HP 3PAR V400 to the HP-UX server?  Will it work?  Will EMC support the configuration?
Can CLARiiON (NS480) coexist with 3PAR on HP-UX 11.23 with PowerPath?