March 25, 20251 yr Been running unraid now for 10+ years, upgraded hard drives as I go. At the moment I am running a single 2TB nvme cache drive on the mobo with 24 drives in main array. Cache drive hosts mostly *arr programs for media, and various other programs such as swag to facilitate the server use. I've got a hold of 4, 2 TB server grade nvmes and have attached them to a u.2 2.5" carrier mounted on to a pcie riser card. My question is do I run all 4 in a raidz1 zfs pool, and how do I go about migrating from the 2TB Nvme? Thx
March 27, 20251 yr Community Expert You could upgrade the pool to a 4 device btrfs raid1 pool, but if you prefer zfs, you will need to create a new pool and copy the data there.
March 29, 20251 yr Author Solution So, I ended up moving all files to the array, then deleting the cache pool and setting up a new raidz1 pool. then moved the files back over
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