Continuum has a very good point about RAID 5 - it is not considered a best practice these days due to the length of time it takes rebuild the array. With a larger window, you have a increased chance of losing another disk during the rebuild process, resulting in losing everything.
That being said, you can install Dell's Server Administrator software on a ESXi host. You can find the VIB files on Dell's site (Dell OpenManage Server Administrator | Dell CANADA); just install those and then you'll be able to pull up the Server Administrator via a web page.