How to Set Up Software RAID with mdadm on RHEL 8
Software RAID using mdadm provides redundant disk storage without requiring a hardware RAID controller, making it ideal for cost-effective high-availability storage on RHEL 8. RAID 1 (mirroring) writes identical data to two disks simultaneously; if one disk fails, the other continues serving data without interruption and the array can be rebuilt onto a replacement drive. […]