Separating OS and data using separate RAID sets on one host

[ATG123]

I am using the free version of ESXi 5.  Is there a way to put the OS's of multiple virtual servers on one RAID set and their data on a separate RAID set on one ESXi host machine?  My host machine has two RAID sets.  Can I put the OS's of multiple servers on one internal RAID set and the data associated with those servers on a separate internal RAID set?  And can this be achieved with the free ESXi 5 version?  Thanks!

[cjscol]

Yes.

Create a VMFS datastore on the one RAID array and another VMFS datastore on the other RAID array.

Create a VM on the first datastore with a single disk also on this datastore.

Add another disk to the VM selecting the second datastore.

Install the OS on the first disk and store the data on the second datastore.