From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Wyraz Subject: mount.cephfs with domain name and multiple ip addresses Date: Wed, 22 Jun 2016 07:31:41 +0200 Message-ID: <576A22BD.1000901@wyraz.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Received: from vpsprod2.wyraz.de ([188.68.49.93]:53361 "EHLO mail.wyraz.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751445AbcFVFzU (ORCPT ); Wed, 22 Jun 2016 01:55:20 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.wyraz.de (Postfix) with ESMTP id F184B8EE64 for ; Wed, 22 Jun 2016 07:31:41 +0200 (CEST) Received: from mail.wyraz.de ([127.0.0.1]) by localhost (mail.wyraz.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id J0SilXCjJ0jc for ; Wed, 22 Jun 2016 07:31:41 +0200 (CEST) Received: from [192.168.10.10] (p50992bfa.dip0.t-ipconnect.de [80.153.43.250]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wyraz.de (Postfix) with ESMTPSA for ; Wed, 22 Jun 2016 07:31:41 +0200 (CEST) Sender: ceph-devel-owner@vger.kernel.org List-ID: To: "ceph-devel@vger.kernel.org" Hello, I have multiple ceph monitor nodes and one domain name that has an a record for each node. I use this record in my fstab, e.g.: mon.mycephcluster.com:6789:/ /backups/ ceph _netdev In /proc/mounts, I can see all IPs for mon.mycephcluster.com, e.g.: 1.1.1.1:6789,2.2.2.2:6789,2.2.2.2:6789:/ /backups ceph rw,relatime,acl 0 0 This works perfect and is a really good thing because it makes adding/removing nodes much more easy. What I'd like to know is if this is intended behaviour (in this case it should be documented in the manpage) or if this could have unexpected side effects. Kind regards, Michael.