Managing Serviceguard Extension for SAP Version B.05.10, December 2012

cd /
# umount all logical volumes of the volume group
vgchange -a n <vg_name>
vgchange -c y <vg_name>
vgchange -a e <vg_name>
# remount the logical volumes
The device minor numbers must be different from all device minor numbers gathered on the other
hosts. Distribute the shared volume groups to all potential failover nodes.
HP-UX Setup for Options 1, 2 and 3
This section describes how to synchronize and configure the HP-UX installations on all cluster nodes
in order to allow that the same liveCache instance is able to run on any of these nodes. This section
does not apply to hot standby systems, since they never perform any instance failover.
For systems with hot standby this entire HP-UX setup section can be skipped.
Cluster Node Synchronization
1. Repeat the steps in this section for each node of the cluster that is different from the primary.
.
2. Logon as root to the primary host and prepare a logon for each of its backup hosts.
liveCache Installation Step: LC030
Synchronize the /etc/group and /etc/passwd files .
The liveCache installation has created a <lcsid>adm user belonging to the sapsys group. Make
sure the user and group exist on all nodes and that UID and GID are consistent across the nodes.
liveCache Installation Step: LC040
Synchronize the sql<nn> entries from the /etc/services file between the nodes to match the
entries on the primary node .
liveCache Installation Step: LC050
Change the HP-UX kernel on the backup nodes to meet the SAP liveCache requirements as specified
in the SAP liveCache installation documents .
liveCache Installation Step: LC060
Do the following to continue:
1. Copy the content of the <lcsid>adm home directory to the backup node. This is a local directory
on each node.
2. Rename the environment scripts on the secondary nodes. Some of the environment scripts may
not exist.
Example:
su - <lcsid>adm
mv .dbenv_<primary>.csh .dbenv_<secondary>.csh
mv .dbenv_<primary>.sh .dbenv_<secondary>.sh
For liveCache 7.6:
su - <lcsid>adm
mv .lcenv_<primary>.csh .lcenv_<secondary>.csh
mv .lcenv_<primary>.sh .lcenv_<secondary>.sh
NOTE: Never use the relocatable address in these file names.
liveCache Installation Step: LC061
Copy file /etc/opt/sdb to the second cluster node.
This file contains global path names for the liveCache instance
liveCache Installation Step: LC062
HP-UX Setup for Options 1, 2 and 3 125