From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Dillaman Subject: Re: About rbd journal Date: Tue, 8 Dec 2015 22:58:08 -0500 (EST) Message-ID: <2147390578.31102155.1449633488780.JavaMail.zimbra@redhat.com> References: <0e3101d1322f$22a53880$67efa980$@com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Received: from mx4-phx2.redhat.com ([209.132.183.25]:47075 "EHLO mx4-phx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751083AbbLID62 (ORCPT ); Tue, 8 Dec 2015 22:58:28 -0500 In-Reply-To: <0e3101d1322f$22a53880$67efa980$@com> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: changtao381 Cc: ceph-devel@vger.kernel.org The in-development RBD journaling feature is designed to be utilized with a future RBD mirroring daemon to perform continuous and point-in-time consistent replication of RBD images to another Ceph cluster (specifically with disaster recovery situations in-mind). Until this feature is available and stable, periodic RBD incremental diff exports are probably the best backup alternative. -- Jason Dillaman ----- Original Message ----- > From: "changtao381" > To: dillaman@redhat.com > Cc: ceph-devel@vger.kernel.org > Sent: Tuesday, December 8, 2015 10:10:17 PM > Subject: About rbd journal > > HI, > > There is requirement from customers that need to continuous backup rbd image > to backup device or another ceph cluster. > > As far as I know , rbd journal can be used to record all the rbd mutations > to journal which is stored in rados objects in the same ceph cluster > > Is it has interface to push rbd journal to another storage device or > another ceph cluster ? Or is is has dev plan? > > Or anyone has other good way to do backup ? Thanks very much! > > > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >