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Have you tried btrfs on an md RAID device (for interest)? We've run it for a while, but we don't care too much about performance.
by xioxox 10y ago
Have you tried btrfs on an md RAID device (for interest)? We've run it for a while, but we don't care too much about performance.
- krondor 10y agoThat seems ill advised, one of the benefits of btrfs is it obviates the need for lvm and mdadm. I guess in your case you have a more stable raid5/6 opportunity, but you're losing many of the raid benefits present in btrfs natively. I'd also imaging it could be slower or introduce IO issues others haven't tested. Though I really have no idea, never seen anyone do that before.
- xioxox 10y agoIt's been great for our use case - we've been using it for about 5 years like this. We use it for rsyncing data onto as a backup (not the only one!), making daily snapshots. md is more flexible than zfs's raid, but less flexible as native btrfs raid.
- jamesblonde 10y agoNo, but a lot of people on the btrfs mailing list recommend this due to the lack of stability for raid5/6 on btrfs.