On Aug 13, 2014, at 5:01 AM, David Pottage <david@xxxxxxxxxxxxxxxx> wrote: > At present, you can write RAID 5 or 6 data, but if anything goes wrong, btrfs cannot use the parity information to help you get your data back, so in general you are better off with RAID 1 or 10. Btrfs RAID5/6 normally mounted will reconstruct data from parity if there's a data checksum mismatch indicating data block(s) are corrupt. It'll also reconstruct from parity in the case of degraded mounts, and when doing a balance. What's missing is scrub. > Also, I don't think I/O done in parallel so you get no speed advantage from having multiple discs either. Hmm I thought that was just single and raid1? Chris Murphy-- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
