How To Set Up A Software RAID On Linux
A hardware-based hard drive RAID is costly. For this reason, users regularly create a software RAID on Linux to satisfy their large data needs. Setting up a storage pool has gotten easier on Linux over the years, thanks to tools like Mdadm. With this program, users can create a software RAID array in a matter of minutes!
But you may also want to consider RAID vs backups or both. RAID does not replace having the need for a backup(s) at all.
See https://www.addictivetips.com/ubuntu-linux-tips/set-up-a-software-raid-on-linux/
How To Set Up A Software RAID On Linux How To Set Up A Software RAID On Linux |