Layer 2 switches & SAN setup.
Posted on 2013-05-30
Hello. Forgive my lack of knowledge here, I'm just learning at the moment.
We are going to have an 8 port SAN Box (HP P2000 G3 Modular Smart Array Systems) with 11 drives (RAID10) connected to two LAYER2 switches. The switches are then going to connected to, two, host controllers (beefed up servers). The host controllers will have Hyper V installed, they will host our DC, Exchange VE's. The VHD's (containing the VE's) will be stored on the SAN drives. The two host controllers will be connected to the rest of the network/LAN via a router.
My question is based around the layer two switches - we will have 4 VLANS (each with own subnet/IP Range) configured on the two switches. The two switches will connect to the host controllers via x2 cat6 cables, going into x2 NIC's (teamed) on each controller (server).
As you know layer 2 switches cannot apply intelligence when forwarding packets, and that they cannot route packets based on IP addresses. With the above setup, do we need layer 3 switches.
Sorry if my question is to generalised and not specific. What I mean to say, is that having two LAYER2 switches setup with VLANS, which will connect to a SAN, do they need to be able to apply intelligence when forwarding requests from the LAN.
If you need me to expand on anything, or make things clearer (which is highly likely) then please say. This is all relatively new to me. I have been tasked with researching how to get this all configured.