Is every onboard RAID fake RAID? - Server Fault
serverfault.com › questions › 866070Jul 31, 2017 · "Fake RAID" is nothing more than a software RAID done via a proprietary binary driver/blob. Any cache-less on-board RAID controller is a (near useless) fake RAID, made gluing together a SATA/SAS controller and said opaque driver. Its lone advantage over "pure" software RAID is the ability to present a single device for BIOS booting.