2010/12/14 Ray Van Dolson <rvandolson@esri.com>: > On Tue, Dec 14, 2010 at 07:59:19AM -0800, Paolo Smiraglia wrote: >> Hi to every ones... >> >> >> I would to setup a LVM build on top of an iSCSI disk shared between >> some nodes which is managed by a Master Node (MN) that sents commands >> to other nodes (N1, N2,...) through SSH. >> >> I think the cluster extension is not required because a particular >> Logical Volume (LV) is accessed exclusively by one node, and because >> LVM metadata cannot be modified at the same time by multiple nodes. >> >> One issue is that once a LV is created by a node it cannot be >> activated by another node by executing the command >> >> $> lvchange -aey vg/lv01 >> >> and the LV created is a snapshot. The error displayed is >> >> Can't change logical volume "lv01" >> >> >> 1. In this scenario is CLVMD required? >> 2. Is it possible to activate a LV in another node? >> >> >> Thanks in advance for all replies. > > I haven't tried this, but you probably would need to release the LVM > from use by node B for node A to activate and use it. > > Ray Hi Ray, thanks for the faster reply... The problem is that node B is unable to deactivate the Snapshot LV, because the command $> lvchange -aen vg/lv01 fails with the message posted above (Can't change logical volume "lv01"). What is the correct way to deactivate the Snapshot LV in this scenario? Thanks! -- PAOLO SMIRAGLIA http://portale.isf.polito.it/paolo-smiraglia _______________________________________________ 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/
