From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Woodhouse Subject: Re: replacing failed disks in RAID-1 (kernel BUG)? Date: Mon, 13 Jul 2009 14:23:33 +0100 Message-ID: <1247491413.19180.172.camel@macbook.infradead.org> References: <4A5B0C39.5030905@wpkg.org> Mime-Version: 1.0 Content-Type: text/plain Cc: linux-btrfs@vger.kernel.org To: Tomasz Chmielewski Return-path: In-Reply-To: <4A5B0C39.5030905@wpkg.org> List-ID: On Mon, 2009-07-13 at 12:28 +0200, Tomasz Chmielewski wrote: > How do I replace failed disks in RAID-1 mode? I don't think you can. In theory you can remove the broken one, and you can add a _new_ empty one -- I say 'in theory' because you seem to have demonstrated both of those actions failing. But I don't believe we have yet implemented anything to let you _replace_ a failed disk and recreate its original contents. I had that on my TODO list for some time after I get the basic RAID[56] operation working. -- David Woodhouse Open Source Technology Centre David.Woodhouse@intel.com Intel Corporation