RAID Controller Explained: What You Need To Know about Disk array and hard drives

RAID Controller Explained: What You Need To Know about Disk array and hard drives

Each server ships with an integrated RAID controller or a separate card, and some virtualization platforms, like Proxmox, even offer software RAID, which does not need a dedicated RAID controller. But what exactly does a RAID controller do, and why is it pivotal in the seamless operation of servers and data protection?