hulk66

Thanks for confirming

ok. You consider the described process to be ok?

But it can be one of the old 4 TB drives, doesn't need to be like 16TB?

I'm planning to get my server to zfs. Current setup Array: 2 x 16TB HDD, 3 x 4TB HDD Cache: 1 SSD I would like to install another 16 TB HDD in order to form a zfs pool. The 4TB drives will then get obsolete. What is the best way of doing this without loosing data and keeping my existing shares/docker/setup/ in place? I'm thinking of the following process, and I'm not sure it works this way 1. Move everything away from the 16 TB Data disk 2. Change the config: 2.1 Remove the parity drive from the array. 2.2 Exchange one of the (empty) 4 TB drives with the new 16 TB drive 2.3 Build a zfs pool with the 3 x 16 TB drives (raidz) 2.4 Add zfs pool to array 3. Move everything from the 4TB disks (and from other sources) back to the new array 4. Remove the 4 TB drives from the array Two questions: Will the process work this way? If I understand it correctly there is no "Unraid" Parity drive anymore but zfs will take care of the parity among the 3 drives. Thanks in advance