Hi, Have you checked this? : http://sources.redhat.com/cluster/wiki/LVMFailover Best regards, Norbert Nemeth -----Original Message----- From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Gianluca Cecchi Sent: Wednesday, April 08, 2009 5:19 PM To: linux-cluster@xxxxxxxxxx Subject: Info on lvm setup for cluster without clvmd Hello, I would like to setup a two-node cluster where I will have some services relying on filesystems on lvm resources. I'm using rh el 5U3 but I only have entitlements for RHEL Clustering and not for Cluster-Storage, so that I cannot use clvmd as in other clusters I set up previously. I don't need GFS so I think this is the correct setup for me, also from a legal point of view >From a documentation point of view I see: Note: Shared storage for use in Red Hat Cluster Suite requires that you be running the cluster logical volume manager daemon (clvmd) or the High Availability Logical Volume Management agents (HA-LVM). If you are not able to use either the clvmd daemon or HA-LVM for operational reasons or because you do not have the correct entitlements, you must not use single-instance LVM on the shared disk as this may result in data corruption. If you have any concerns please contact your Red Hat service representative. I suppose that with HA-LVM here we are talking about lvm.sh script (with the other two lvm_by_lv.sh and lvm_by_vg.sh referred into it) inside /usr/share/cluster/ directory. At the moment the cluster is not formed at all; I only have setup a basic cluster.conf without the lvm resources in it. I have setup volume groups and logical volumes on one node. The disks are seen by the other node too, but correctly it is not seeing the LVM parts In lvm.conf of both I have locking_type = 1 and I think it should remain this way in my setup, correct? Which is the correct approach in my situation if I want to go straight with command line and not graphical tools? In old days when lvm was not cluster-aware I had to: vgchange -an VG on the first node and then vgchange -ay VG on the second to let it create the devices and the lvm cache for the first time after creation. After this, in lvm.sh script it seems I have to populate the "activation" section filling up the volume_list part, to prevent concurrent activation of volume groups used by the cluster. Any good documentation reference for this? It seems I didn't find anything.... I thank all the gui creators (Conga and system-config-cluster), and I think there is a good audience for them, but I would like to be able at least to do it manually too.... I think it helps very much to understand internal mechanisms and eventually debugging when problems arise... Thanks in advance, Gianluca -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster NOTICE: If received in error, please destroy and notify sender. Sender does not intend to waive confidentiality or privilege. Use of this email is prohibited when received in error. Local registered entity: MSCI KFT Metropolitan Court acting as the Court of Registry Registered office: 1138 Budapest, Népfürdő utca 22, Hungary Registration No. 01-09-885383 -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
