Thank goodness someone said it. Perhaps I don't understand the problem domain, but I don't understand why CephFS is being considered for this task. You're tryi

Thank goodness someone said it. Perhaps I don't understand the problem domain, but I don't understand why CephFS is being considered for this task. You're trying to treat your entire set of files across all repos as a single filesystem, but that's an entirely incorrect assumption. The I/O activity on one repo/user does not affect the I/O activity of an entirely different user. Skip the one filesystem idea, shard based on user/location/whatever. I'd appreciate any comments explaining why I'm wrong, because this doesn't seem to be a productive design to me.