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by curt15 618 days ago
Synology only uses btrfs in single-disk mode and implements RAID-1 functionality using its own patched version of mdadm to side-step the gotchas of native btrfs raid1.
1 comments

What 'gotchas' exactly?
None for raid 1. They do it for raid 5/6 if you're a crazy person and want to run parity raid in 2024.