Could someone out there explain to me why MSCS doesn't work well with round robin NMP on ESXi < v5.5? Best explanation I've seen is that each path is "seen" differently by the guest OS and so it must continually send SCSI reset and reservation commands slowing everything down. Presumably this could complicate recovery situations as well....
Looking for a better explanation though -- which would also help me understand how it "works" in ESXi 5.5+ now.