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5.2 Upgrading Existing OES 1 Linux Cluster
Nodes to OES 2 (Rolling Cluster Upgrade)
Performing a rolling cluster upgrade from OES 1 Linux to OES 2 Linux lets you keep your cluster
up and running and lets your users continue to access cluster resources while the upgrade is being
performed.
During a rolling cluster upgrade, one server is upgraded to OES 2 Linux while the other servers in
the cluster continue running OES 1 Linux. Then, if desired, another server can be upgraded, and
then another, until all servers in the cluster have been upgraded to OES 2 Linux. You should
complete the upgrade as soon as possible. Don't leave the cluster in a mixed version state for an
extended period.
To perform a rolling cluster upgrade from OES 1 Linux to OES 2 Linux:
1 Make a note of the OES components that are installed on the server you are upgrading.
You will probably want to install the same components on the node as you perform the
upgrade.
NOTE: NSS, eDirectory, and NCP Server are not required components for Novell Cluster
Services on OES 2, but are required components for Novell Cluster Services on OES 1 Linux.
Ensure that you install these components on OES 2 Linux servers when you upgrade your OES
1 Linux cluster servers.
2 Bring down the OES 1 Linux cluster server you want to upgrade to OES 2.
Any cluster resources that were running on the server should fail over to another server in the
cluster.
You can also manually migrate the resources to another server in the cluster prior to bringing
down the server. This prevents the resources from failing back to the node after you have
completed the upgrade.
3 Upgrade the server by using the Update option on the OES 2 Linux installation, making sure to
install the components that are currently installed on the server that you noted in
See
"Upgrading to OES 2
4 Repeat
been upgraded to OES 2.
5 (Conditional) If necessary, manually migrate the resources that were on the former OES 1
server to this Linux server.
The resources will automatically fail back if both of the following apply:
The failback mode for the resources was set to Auto.
This Linux server is the preferred node for the resources.
6 After the last OES 1 cluster node has been upgraded to OES 2, finalize the upgrade by
following the instructions in
See also
and OES 2 Linux," on page 55
the rules that apply to them.
56
OES 2 SP2: Novell Cluster Services 1.8.7 for Linux Administration Guide
SP2" in the
Step 1
through
Step 3
for each OES 1 Linux cluster server until your entire cluster has
Section 5.5, "Finalizing the Cluster Upgrade," on page
Section 5.1, "Requirements and Guidelines for Upgrading Clusters from OES 1 Linux
for more information on mixed OES 1 and OES 2 clusters and
OES 2 SP2: Installation
Guide.
Step
1.
57.
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Troubleshooting
