You can attach an RBD device to multiple volumes, and if you don't use the cache then the RBD layer will even be coherent. But of course that's just the disk, so unless you're using a cluster-aware FS like OCFS2 on top then mounting from multiple places will blow up your data. -Greg Software Engineer #42 @ http://inktank.com | http://ceph.com On Thu, May 23, 2013 at 10:18 AM, Dave Spano <dspano@xxxxxxxxxxxxxx> wrote: > Unless something changed, each RBD needs to be attached to 1 host at a time > like an ISCSI lun. > > Dave Spano > Optogenics > > > ________________________________ > From: "Yao Mensah (CIV)" <Yao.Mensah@xxxxxxxxx> > To: ceph-users@xxxxxxxxxxxxxx > Sent: Thursday, May 23, 2013 1:10:53 PM > Subject: FW: About RBD > > > FYI > > > > From: Mensah, Yao (CIV) > Sent: Wednesday, May 22, 2013 5:59 PM > To: 'info@xxxxxxxxxxx' > Subject: About RBD > > > > Hello, > > > > I was doing some reading on your web site about ceph and what it capable of. > I have one question and maybe you can help on this: > > > > Can ceph RBD be used by 2 physical hosts at the same time? Or, is Ceph rbd > CSV(Clustered Shared Volumes) aware? > > > > Thank you, > > > > Yao Mensah > > Systems Administrator II > > OLS Servers > > > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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