From mboxrd@z Thu Jan 1 00:00:00 1970 From: Josh Durgin Subject: Re: rbd volume upgrades Date: Fri, 09 Nov 2012 11:04:29 -0800 Message-ID: <509D53BD.6020706@inktank.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-pa0-f46.google.com ([209.85.220.46]:54098 "EHLO mail-pa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754024Ab2KITEx (ORCPT ); Fri, 9 Nov 2012 14:04:53 -0500 Received: by mail-pa0-f46.google.com with SMTP id hz1so2971491pad.19 for ; Fri, 09 Nov 2012 11:04:53 -0800 (PST) In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Gregory Farnum Cc: "ceph-devel@vger.kernel.org" On 11/09/2012 11:01 AM, Gregory Farnum wrote: > I was asked today if there's a way to upgrade RBD volumes from v1 to > v2. I didn't think so, but wanted > 1) to make sure I'm right, > 2) to ask how hard it would be, > 3) to ask if we haven't done it because it didn't occur to us or > because it's too hard. > -Greg > This was addressed in the original discussions about format 2. You need to export and then import the volume as format 2. Format 2 uses different names for objects, so providing an 'upgrade' path would still require copying all the data around. Josh