I am buying a refurbished SuperMicro 4 node blade server and I cant seem to find information on the best disk configuration. Each node only has room for 3 disks. This is not a production cluster, I am just going to be using it for testing and training, but I would like to get the best performance that I can. Any suggestions?

not sure if this helps: https://docs.harvesterhci.io/v1.1/install/requirements

Ok, thanks. All SSDs it is.