We have a senerio with some of our UCS domains. when we add a new storage array some paths will login to the array but not all will login until we reboot a host. We have 4 UCS domains 6140x, 6248 and 2 x 6296. the older 6140 seems to always login and have no issues the newer seems to only login a single path and sometimes none until a reboot of the blades occurs. the FI up link to Brocade 5300 FC switches. This does not appear Firmware related as the newer 6296 are on 2.2.3b and the other are on 2.1.3e until next main window. I am thinking there is some issues with the upstream brocades and RSCN passing toe th newer FI . Any thoughts and direction as i really don't want to spend the next month rebooting hosts.