Configuring LINUX RAID 1 is very essential as its provides redundancy.
RAID partitions allows advanced features such as redundancy and better performance. So lets describe how to implement RAID, let’s look at the different types of RAID:
??? RAID 0 (Striping) disks are grouped together to form one large drive. This offers better performance at the cost of availability. Should any single disk in the RAID fail, the entire set of disks becomes unusable. Two disk minimum.
??? RAID 1 (Mirroring) disks are copied from one to another, allowing for redundancy. Should one disk fail, the other disk takes over, having an exact copy of data from the original disk. The downside here is slow write times. Two disk minimum.