I have an old file server with 24 bays which I inherited from a system admin who left our lab 2 years ago. The server is currently running Red Hat 6.5 and having two large softraids 6. The RAIDs are on the life support as the server originally was running Ubuntu 8.0.4 and then "upgraded" to Red Hat. Each power down cycle is a night mare and requires partition search and manual RAID assembly. As soon as the data is migrated the server will be running FreeNAS or TrueOS. I found current RAID card...
Multiple HBAs on a server
Multiple HBAs on a server