[mdip]

I tend to agree with you here -- reliability has been a non-issue for me, though I've never configured `btrfs` in its RAID configuration.

Performance becomes an issue in certain cases, but in every one that I've encountered, adjusting configuration has resolved the problems to my satisfaction.

Would my Windows 10 VM run better under a different filesystem, rather than `btrfs` with various tweaks applied? Reading relatively recent articles on the subject would suggest that it would, however, I'd rather work with a single filesystem type and understand its strengths/weaknesses than manage two different filesystems as long as I can get performance to a usable state.

[ansible]

We have run btrfs in RAID configuration, but that has usability issues, even just doing RAID-1.

We've switched back to using MD (mdadm) for RAID-1 setup, and then using btrfs on top of that for the snapshots, send / receive, block-level CRC and such.

Dealing with failed drives isn't as easy with btrfs as it is with Linux MD.