I have a vmware esxi 5 running on a server with ssd and two hard drives. The server comes with software lsi megaraid and intel rapid storage raid. Neither of them work with esxi.
I need to somehow setup a fakeraid inside virtual machine to keep a copy data on each drive (raid0).
Is it possible to do so?
ESXi is not supporting fake raid. You need to create 2 VMFS and add 2 disk each on one of the data stores and setup software RAID on the guest OS. You will have redundancy for VM, but not for ESX itself.
You should use supported hardware. Fakeraid solutions aren't in the scope of VMWare ESXi blessed setup. You can make things work by acquiring a hardware RAID controller from the VMWare Hardware Compatibility List, though.