We are in the process of implementing a SAN, so our three ESXi hosts won't be using local storage anymore.
Running ESXi 5.0 on all hosts, and vcenter server 5.1.
Until now, since we've never had shared storage, we've never used vmotion or any of the other features of vcenter.
Our ESXi hosts have 4 onboard NICs and a pcie card with an additional 2, so 6 total network ports per host.
Now we're setting up the SAN, which uses ATA over Ethernet (similar to ISCSI apparently), and it has its own PCIe NICs that it uses - 4 per host - that connect to the SAN fabric.
My question, is how do we configure the hosts for vmotion? Would the vmotion traffic go over the SAN fabric network? Or over the IP network (over one of the 6 NICs?)
We probably only need ~2-3 of the 6 NICs on the host for the IP network (for the virtual machines running on the hosts), so the remaining NICs - should we take 2 per host and use them for vmotion? Then what' sthe best way to configure them? Should we connect those 2 ports per host to a separate VLAN on a separate switch?
If so, what about vcenter server - it resides on the other side of the network, and connects to the esxi hosts via the management interface (the front facing IP network).
Just want some ideas what the best way to do this would be
Thanks in advance