December 29, 20241 yr Hi, I have a question about the RAID, How I know which RAID is suit for me? How to choose it? Currently I have 2 8TB HDD discs that I thought to make RAID1 (just for start), then add more 2 8TB and change it to RAID5. The idea is to buy 4 SSDs NVME to make cache pool, but don't know which RAID to choose. Regards.
December 29, 20241 yr Community Expert Are these disks in a pool or in the main Unraid array? If the main array then it uses Unraid's proprietary RAID-like support so your question is not relevant. In the main Unraid array it is just a question of whether you want 1 or 2 parity drives regardless of the number of data drives. If in a pool then you can pick the RAID level, but be aware that you can only change it dynamically if using BTRFS format for the pool.
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