From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id n1CAbaHR003145 for ; Thu, 12 Feb 2009 05:37:36 -0500 Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by mx3.redhat.com (8.13.8/8.13.8) with SMTP id n1CAaw5u004808 for ; Thu, 12 Feb 2009 05:36:58 -0500 Content-Type: text/plain; charset="iso-8859-1" Date: Thu, 12 Feb 2009 11:36:57 +0100 From: "Manuel Neuger" Message-ID: <20090212103657.41710@gmx.net> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Subject: [linux-lvm] clustered lvm without clvmd Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: To: linux-lvm@redhat.com Hi all, I have a lvm VG on top of a iscsi lun, and want to share that on=20 multiple hosts in order to run kvm virtual machines on logical volumes. I recently noticed that xen-server also do this, but they do not run clvmd.= Can someone explain how that could work? I also detected that I can protect LVs by using 'tags'. That way I can make sure that LVs are only activated by one host? It is also no problem to restrict VG write access to one host (master).=20 The only problem I see is how to propagate metadata changes to the other nodes. How do I make sure that metadata is written back to the iscsi storag= e? And is it enough to simple issue a 'vgsvan' on all nodes? Or is that a bad idea? - Manuel --=20 Psssst! Schon vom neuen GMX MultiMessenger geh=EF=BF=BDrt? Der kann`s mit a= llen: http://www.gmx.net/de/go/multimessenger01