August 1, 20241 yr I've got an Unraid Array, AppData on an SSD and Cache on M.2 as Pool Devices.. This all works great and fast. I've also got a Pool Device named Torrents (I originally had Torrents as a directory in my Unraid Array, but found that it was a real speed sucker - putting it as a dedicated device works great). Simple (?) question... can I set up the Torrents Pool as RAID 1? From what I can gleem, it looks to be possible if I use BRTFS as the filesystem on Torrents. But, really, I have no idea. Is it possible? And if so, how would one go about doing it?
August 1, 20241 yr It's possible with btrfs or zfs, but these are usually not great for torrenting, because of being COW, xfs usually performs much better for that.
August 4, 20241 yr Author Ok, thanks JorgeB. So I already have one drive (sdb) setup for torrenting with xfs. How would I go about adding a second drive (sdo) to it and making it RAID 1? I have no problem if I have to wipe the current drive - I have an alternate torrent disk already set up. And I'm very comfortable with the BASH command line.
August 4, 20241 yr 7 hours ago, Dan M said: How would I go about adding a second drive (sdo) to it and making it RAID 1? You cannot have RAID on XFS. XFS Pools are single drive only.
August 4, 20241 yr As was mentioned you cannot have a multi-drive XFS pool. To do this you need to have it formatted as btrfs or ZFS (which means any existing content is wiped).
October 26, 2025Oct 26 same question here. I am actually testing my new Unraid server and want to try some options before I go live. I tried to setup a pool device for cache as Raid 1...I have 2 x 250GB SSD´s which are BTRFS, it sais if you add 2 devices to a pool device it will automatically make raid 1...I did but it´s still BTRFS - nonraid, it sais it´s 465 GB in size which is both drives added space.how can I make raid 1 for safety? It did not happen automatically as said and I dont know how to make it manually
October 27, 2025Oct 27 18 hours ago, Tralien said:I did but it´s still BTRFS - nonraidIt is already RAID1:
October 28, 2025Oct 28 but it sais file system: "btrfs" and not "btrfs-raid1" as described in the info toolbox ?!?so that´s why I was confused......ok, thx for clarification
October 28, 2025Oct 28 It always shows btrfs for the filesystem, you can also check the current profile by clicking on the first pool device:
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