Managing HP Serviceguard for Linux Ninth Edition, April 2009

NOTE: fdisk may not be available for SUSE on all platforms. In this case, using
YAST2 to set up the partitions is acceptable.
Enabling Volume Group Activation Protection
As of Serviceguard for Linux A.11.16.07, you can enable activation protection for logical
volume groups, preventing the volume group from being activated by more than one
node at the same time. Activation protection, if used, must be enabled on each cluster
node.
Follow these steps to enable activation protection for volume groups on Red Hat and
SUSE systems:
IMPORTANT: Perform this procedure on each node.
1. Edit /etc/lvm/lvm.conf and add the following line:
tags { hosttags = 1 }
2. Uncomment the line in /etc/lvm/lvm.conf that begins # volume_list =,
and edit it to include all of the node's "private" volume groups (those not shared
with the other cluster nodes), including the root volume group.
For example if the root volume group is vg00 and the node also uses vg01 and
vg02 as private volume groups, the line should look like this:
volume_list = [ "vg00", "vg01", "vg02" ]
3. Create the file /etc/lvm/lvm_$(uname -n).conf
4. Add the following line to the file you created in step 2:
activation { volume_list=[“@node”] }
where node is the value of uname -n.
Preparing Your Systems 163