Server for ESXi and Hardware question

Hi all,

This is going to be my first time building a server and dealing with raid controllers. I built out a PowerEdge R630, was going to go with 8 bay chassis, like 96 gigs of ram, and then filled with SSD SATA hard drives. I have three questions hopefully you guys can help with.

First, I was planning on using the PERC H730P with 2 gigs cache for my raid controller. I feel like this is a dumb question, but I just want to validate. This controller could could two different RAID arrays at the same time right? If I wanted RAID 1 for the OS and RAID 5 for data storage? I don't need two controllers to do this, I assume.

Second, I am likely going to put ESXi on this server. Would you just get two small SSDs maybe 128 gigs in a RAID 1 array and use that for ESXi, and then the rest of your disks for RAID 5 data storage? Or would you boot ESXi off a USB drive (I would need to look up how to do this, but heard it was an option) and use all your disks for storage?

Finally, I am looking at the documentation on the H730P controller (http://i.dell.com/sites/doccontent/shared-content/data-sheets/en/documents/dell-poweredge-raid-controller-h730p.pdf), and at the bottom it shows it works with ESXi 5.1, and 6.0. Obviously 6.5 is out and available, I assume that this controller would work with 6.5 but can anyone confirm (or deny) this?

Thanks for your help and time.