On 19/05/13 18:39, Clemens Eisserer wrote: > Hi Martin, > >> So, an interesting variation could be to have filesystem level raid >> operating on ext4 or nilfs or whatever... Would that be a sensible idea? > > Thats already supported by using LVM. What do you think you would gain > from layering in top of btrfs? md-raid and lvm-raid are raid at the block level. btrfs-raid offers a greater variety and far greater flexibility of raid options individually for filedata and metadata at the filesystem level. raid at the filesystem level should also gain higher performance over that of just blindly replicating blocks of binary data across devices at the block level. My thoughts are to take advantage of the btrfs-raid work being done but for all filesystems. Hence, we can then have a very flexible raid available for whatever filesystem might be best for any underlying device. OK... So we make all of lvm, md-raid, and drbd all redundant! Regards, Martin -- 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
