I would say 1 for each LUN you have would make sense.
My recommendation would be a minimum of one IP address for each controller in the SAN for a total of 4. If you had a fairly redundant network and could take advantage of MPIO then I would recommend two IP addresses per controller for a total of 8.
This all depends on the SAN vendor you are using. So, both of our answers could be correct.
Last Wiki Answer Submitted: February 2, 2009 2:18 pm by JimmyIT1,695 pts.