I heard that too many paths could result in impact of storage infrastructure performance. Can somebody please answer why?
This is not regarding number of paths for a single server, but looking at whole infrastructure - what impact on FC switches/ storage array etc.
I remember at previous company I worked for we had a project to decrease number of paths as it had some performance hit on SAN / switches/ backend storage array (don'r remember details, but there we had Brocade switches and were migrating from EMC storage array to NetApp).
Quick googling didn't yield much results. Our DBA team has requested 20 voting disks for Oracle backend, 5Gb each and putting management overhead aside, I thought it could also have performance hit.