hi this is subhasis from India Kolkata.
Well In recent days I assembled a server with S5000BCR with dual CPUs and raid activation key axxraksw5 to enable raid 5. In this server I had 1 TB Enterprise sata hdd of 4 Nos. for mirroring. And I have to install VMWARE ESXi software on it to install 3 different Operating Softwares.
But I faced problems for driver of that particular key.
I suggest checking the http://www.vmware.com/resources/compatibility/search.php?source=web&cd=1&ved=0CBcQFjAA&url=http://ww... VMWARE ESXi Hardware Compatibility List to see if ESRT2 RAID is supported.