From mboxrd@z Thu Jan 1 00:00:00 1970 From: NeilBrown Subject: Re: Growing a RAID array Date: Fri, 13 May 2011 11:23:13 +1000 Message-ID: <20110513112313.54fbb717@notabene.brown> References: <28.92.03893.3038CCD4@cdptpa-omtalb.mail.rr.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <28.92.03893.3038CCD4@cdptpa-omtalb.mail.rr.com> Sender: linux-raid-owner@vger.kernel.org To: lrhorer@satx.rr.com Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Thu, 12 May 2011 20:02:01 -0500 "Leslie Rhorer" wrote: > > I am shortly going to be growing a 10 drive RAID6 array with two > additional drives. Can this be done in a single grow operation by setting > n=12, or do I have to grow it 1 drive at a time? > Experiment with loop-back devices created on modest sized files. (but yes, you can grow by any number you like. You should test the drives fairly heavily first, because if they both die during the reshape, you lose your data). NeilBrown