VMWare Redundant Cluster without Interim Switch
Posted on 2014-12-03
Hi, quick question on a config I am looking at for a small VMware vSphere 5.5 cluster.
Looking at 2x Dell high powered servers with additional Dual Port 10GBs Copper on each for iSCSI connectivity.
For SAN looking at Powervault with dual controllers, each controller with 2x 10Gbps Rj45 copper.
My question is, since I only have 2 servers, shouldn't I be able to just connect each server directly to the SAN without needing to spend the extra bucks on redundant 10Gbps switches?
Each server would have 2x 10Gbps ports, one port each could go to each controller, so no matter if a controller went down, it would all stay up.
I can't remember from all of the VMware documentation if the ISCSI ports on the hosts need to be able to ping the ISCSI ports on the other hosts or not as part of the cluster heartbeats or something for full HA to work - which of course wouldn't be possible if they were directly plugged into the SAN?
I need to be able to do HA, vMotion, etc.