On Tue, Jan 31, 2012 at 11:22 AM, Bernd Schubert <bernd.schubert@xxxxxxxxxxxxxxxxxx> wrote: > I guess we should talk to developers of other parallel file systems and see > what they think about it. I think cephfs already uses data integrity > provided by btrfs, although I'm not entirely sure and need to check the > code. As I said before, Lustre does network checksums already and *might* be > interested. Actually, right now Ceph doesn't check btrfs' data integrity information, but since Ceph doesn't have any data-at-rest integrity verification it relies on btrfs if you want that. Integrating integrity verification throughout the system is on our long-term to-do list. We too will be said if using a kernel-level integrity system requires using DIO, although we could probably work out a way to do "translation" between our own integrity checksums and the btrfs-generated ones if we have to (thanks to replication). -Greg -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
