Novell LINUX ENTERPRISE 11 - HIGH AVAILABILITY, Manual, Page: 110 / 298

NOTE: Reverting after Update
After the update process to SUSE Linux Enterprise Server 11, reverting back to
SUSE Linux Enterprise Server 10 is not supported.
11.1 Preparation and Backup
Before updating your cluster to the latest product version and converting the data ac-
cordingly, you need to prepare your current cluster.
Procedure 11.1 Preparing your SUSE Linux Enterprise Server 10 SP2 Cluster
1
Log in to the cluster.
2
Review the Heartbeat configuration file
/etc/ha.d/ha.cf
and check that
all communication media support multicasting.
3
Make sure the following files are equal on all nodes:
/etc/ha.d/ha.cf
and
/var/lib/heartbeat/crm/cib.xml
.
4
Take all nodes offline by executing
rcheartbeat stop
on each node.
5 In addition to the general system backup recommended before updating to the
latest version, back up the following files, as you need them for running the
conversion script after the update to SUSE Linux Enterprise Server 11:
• /var/lib/heartbeat/crm/cib.xml
• /var/lib/heartbeat/hostcache
• /etc/ha.d/ha.cf
• /etc/logd.cf
100 High Availability Guide