From mboxrd@z Thu Jan 1 00:00:00 1970 From: cvb@kruemel.org Subject: Re: Is it possible to grow a (far) RAID =?UTF-8?Q?=31=30=3F?= Date: Tue, 25 Nov 2014 12:01:58 +0100 Message-ID: <81fe7d20d731393c86a6ca557d71adaa@kruemel.org> References: <54744AEE.10908@aei.mpg.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <54744AEE.10908@aei.mpg.de> Sender: linux-raid-owner@vger.kernel.org To: Carsten Aulbert Cc: linux RAID , linux-raid-owner@vger.kernel.org List-Id: linux-raid.ids Hi Am 2014-11-25 10:25, schrieb Carsten Aulbert: > Without much thinking, I would simply follow the wiki page, mark a > device as failed, remove it, repartition it, add it again, and wait > for sync to complete. Repeat for all 4 devices and finally --grow with > mdadm (followed by xfs resizing) - and of course, all online, while > machine is in flight. That is exactoy what I did with my RAID 10 a bit more than a year ago. It basically worked, but there was one caveat... some part (the ---grow?) which required a certain kernel version for which I had booted a live CD back then... The thing is, I can't exactly remember what the caveat was. And as I'm about to grow the RAID again (having replaced all hard drives already), I have been looking for the related mails in the archive of this list, but I can't seem to find them... So I guess we'll have to hope that Neil replies again. Chris