Re: Online device removal pushed to the unstable tree

["Miguel Sousa Filipe" <miguel.filipe@gmail.com>]

Hi all,

On Tue, May 13, 2008 at 9:08 PM, Chris Mason <chris.mason@oracle.com> wrote:
> Hello everyone,
>
>  The unstable tree is still format compatible with v0.14, and it now includes
>  the ability to remove devices online.  In mirror configurations, IO errors to
>  one of the mirrors are also handled, although it doesn't currently kick off a
>  rebuild or other magic.
>
>  To try things out:
>
>  mkfs.btrfs -d raid1 -m raid1 /dev/sdb /dev/sdc
>  mount /dev/sdb /mnt
>  # put data on /mnt
>  # then add /dev/sdd to the FS
>  btrfs-vol -a /dev/sdd /mnt
>
>  At this point we've got a raid1 filesystem with data spread across sdb and
>  sdc.  If we remove /dev/sdc, all the existing data will be remirrored onto
>  sdd:
>

Is there a way to check the progress of the remirror/rebuild ?
(somewhat similar to what /proc/mdstat provides when a mirror is being synced)



-- 
Miguel Sousa Filipe