Neil Brown <neilb@xxxxxxx> writes: > > Having the filesystem duplicate data, store checksums, and be able to > find a different copy if the first one it chose was bad is very > sensible and cannot be done by just putting the filesystem on RAID. Apropos checksums: since RAID5 copies/xors anyways it would be nice to combine that with the file system. During the xor a simple checksum could be computed in parallel and stored in the file system. And the copy/checksum passes will hopefully at some point be combined. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html