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[dm-devel] generic wrappers for multi-device FS operations




After seeing some of the feedback and confusion that happened in the fedora community after Josef suggestion that we default to btrfs in an upcoming Fedora release, it became clear to me that many users are incredibly unaware of the common features that we have across file systems today given LVM/device mapper support.

btrfs will make multi-volume/multi-disk operations common place and easy to do, but there is no reason not to do most/all of this today with ext4, xfs, etc on top of lvm.

To make this trivial to do for users, I think that it would be really nice to have a two-level wrappers for things like resize, add a volume, shrink, etc. Similar to the way we have mount or fsck invoke file system specific bits.

Good idea? Bad idea?

Thanks!

Ric


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