Hello everyone, I''ve pushed out some code to remove devices online. There are no disk format changes included. The basic usage is to: mkfs.btrfs /dev/sdb /dev/sdc /dev/sdd /dev/sde # mount, do things btrfs-vol -r /dev/sdc /mnt Any blocks on /dev/sdc will be relocated to other chunks. The algorithm is very simple but it works for all the raid levels. A future project will be to optimize this code for drive replacement. There are also fixes in there for the code that does mount -o subvol=<name> Next on my list is the ability to mount a degraded filesystem. -chris -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html