https://www.thegeekstuff.com/2010/08/raid-levels-tutorial/
https://www.youtube.com/watch?v=xPYYKFR3-4A
https://drivesaversdatarecovery.com/2019/02/26/raid-glossary/
https://drivesaversdatarecovery.com/blog/raid-comparison/
https://en.wikipedia.org/wiki/Nested_RAID_levels
https://forums.tomshardware.com/threads/slow-write-speeds-on-raid-5-setup.2931221/