I refer to the question of mine [file system that allow to specify different RAID level per directory and change it afterward][1]. Should I ask about this specific problem here on meta? But then, the users who flagged the question might not notice my post and I would sure take a lot of combined time of unrelated readers. Or should I flag the question for moderation? [1]: https://serverfault.com/questions/433102/file-system-that-allow-to-specify-different-raid-level-per-directory-and-change