My NAS runs Unraid. A paid for linux distro where basically 3 drives is in a storage pool and one drive is for containing the checksum (there are no striping across drives like with normal RAID) - the only downside is that the drives all needs to be the same size or the storage will be the size of the smallest HDD in the pool.
You have something slightly wrong about unRAID. You can combine drives of any size except they can’t be larger than the parity drive. I’m going to try and explain. Your parity drive should be the largest drive you own or think you will own (personally I have a 20tb as my parity drive because I won’t own anything larger than that). The other drives can be any size that are less than the parity drive. Example is: parity drive is 20tb, storage drive of 8tb 12tb 16tb. That is completely fine and you will will get 36tb usable storage (8+12+16). If you add a 22tb storage drive you will only add 20tb because the parity drive sets the max size of drives. TLDR: you can mix drives of any size and it will use the full space of all drives as long as they are smaller than the parity drive sets
@@AlwaysBolttheBird Ahh that makes sense - my first setup was just 8TB * 4 - afaik you can't replace a drive with a smaller size than what you had before. I know they support multiple parity drives but then it started looking complicated and my server is limited to 4 drives My bet is that only one drive will die at a time :). My most important must not loose stuff is in the cloud like pics , docs.
