Hi,
on VMware HCL the Iomega IX2-200 is certified only for ESXi4:
http://www.vmware.com/resources/compatibility/detail.php?deviceCategory=san&productid=12947&deviceCa...
http://www.vmware.com/resources/compatibility/detail.php?deviceCategory=san&productid=12946&deviceCa...
So I think you are out of luck for ESXi5.
Giuseppe
Giuseppe | vExpert 2011, 2012 | @gguglie | http://virtualbyte.wordpress.com | | If you find this post useful, please consider awarding points for "Correct" or "Helpful"