InfoScale™ Cluster Server 9.0 Bundled Agents Reference Guide - Linux

To enable volume group activation protection

1. On each node, edit the /etc/lvm/lvm.conf file and add the following line:tags { hosttags = 1 }

   Note:

   When you set the value of hosttags to 1, it enables LVM tagging for all the volume groups. By default, this value is set to 0 (disabled).

2. On each node, create the node-specific configuration file with the name as /etc/lvm/lvm_host_name.conf. Where, host_name is the output of the uname -n command.
3. In the volume_list entry of the lvm_host_name.conf file, add the names of all the volume groups and volumes that are not managed by VCS, and append the "@host_name" tag:

   activation { volume_list = [ "os_vg", "@host_name" ] }

   where, "os_vg" is the root volume group that is not managed by VCS, andhost_name is the output of the uname -n command.

4. Set the value of EnableLVMTagging to 1 for all the configured LVMVolumeGroup resources.
5. Optionally, to disable LVM tagging for a particular volume group that is managed by VCS, add its name in the volume_list entry.

   activation { volume_list=[ "os_vg", "vg1", "@host_name" ] }

   Then, set EnableLVMTagging to 0 for the corresponding LVMVolumeGroup resource.

   This configuration instructs the LVMVolumeGroup agent not to use LVM tagging while activating the volume group vg1.