We are currently operating a vCenter cluster in our datacenter. The hardware is composed of COTS servers and multiple NFS share on a Netapp storage cluster. Everything on a 1gbps redundant network.
The server storage is limited to a 4 GB SD card which boot the ESXi system. All the VMs are mounted via NFS.
We are very interested in Opennebula and would like to get rid of VMware completely and run everything on KVM with NSX-T. My concern is the internal storage. I believe we would have to upgrade it prior to the installation. Is that correct?