From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Priebe - Profihost AG Subject: Re: RBD Backup Date: Thu, 22 Nov 2012 22:23:00 +0100 Message-ID: <50AE97B4.4060501@profihost.ag> References: <50ACD936.8060907@profihost.ag> <50ACDB85.4020006@widodh.nl> <50AE0535.8080904@profihost.ag> <50AE24FD.8090103@widodh.nl> <50AE944E.4030704@inktank.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail.profihost.ag ([85.158.179.208]:58701 "EHLO mail.profihost.ag" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757698Ab2KVVXD (ORCPT ); Thu, 22 Nov 2012 16:23:03 -0500 In-Reply-To: <50AE944E.4030704@inktank.com> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Josh Durgin Cc: Wido den Hollander , "ceph-devel@vger.kernel.org" Hi Josh, Am 22.11.2012 22:08, schrieb Josh Durgin: >> This way you have a pretty consistent snapshot. > > You can get an entirely consistent snapshot using xfs_freeze to > stop I/O to the fs until you thaw it. It's done at the vfs level > these days, so it works on all filesystems. Great thing we even use XFS ;-) but when i do xfs_freeze -f / it just hangs and i can't do anything until i reset the whole VM. Stefan