On Wed, 2008-08-06 at 08:38 +0200, Jean Spirat wrote: Hi, > > LVM manual briefly mentions CLVM (should apply equally well to debian): > > http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/Cluster_Logical_Volume_Manager/index.html > > > yes it just speak about it but there is no doc at all, nothing tells us > if it listen on a tcp port or just communicate by using data on the disk > or anything about the setup. Also it speak about special configuration > in lvm.conf but nowhere i see WHAT should be configured :) CLVM needs a distributed lock manager to work (which communicates over the network, not via the disk). This is usually provided with the help of the RedHat Cluster Suite. >that it should use > >locking_type=2 > >but is this enough ? by default, locking type 2 or 3 requires clvmd, which as I say will require a cluster setup of some kind. You *can* work without a cluster manager but I'm not sure how advised it is. So you leave your locking type as 1 and use "lvchange --refresh /dev/vg/*" on all nodes to reload metadata from disk whenever you make a change. Can be a bit risky. John. -- http://johnleach.co.uk _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
