Host computing systems with the ability to efficiently identify the
Infiniband.TM. (IB) addressing parameters corresponding to Fiber Channel
I/O devices that are accessible through IB-to-Fiber Channel adapters. An
efficient apparatus and program product is described to store the IB
addressing parameters pertaining to individual Fiber Channel I/O devices
on a subnet administration database, and an efficient mechanism to
recover from the database, the IB addressing parameters corresponding to
all physical paths by which a desired Fiber Channel I/O device is
accessible.