Upgrading Oes 2 Linux Clusters; Requirements For Upgrading Clusters; Upgrading Oes 2 Clusters (Rolling Cluster Upgrade) - Novell OPEN ENTERPRISE SERVER 2 SP 2 - CLUSTER SERVICES 1.8.7 FOR LINUX Manual

Upgrading OES 2 Linux Clusters

4
You can upgrade a Novell
This section describes the upgrade process and how to manage the temporarily mixed cluster during
the upgrade.
Section 4.1, "Requirements for Upgrading Clusters," on page 53
Section 4.2, "Upgrading OES 2 Clusters (Rolling Cluster Upgrade)," on page 53
Section 4.3, "Upgrade Issues for OES 2 SP2," on page 54

4.1 Requirements for Upgrading Clusters

Make sure your environment meets the requirements for installing Novell Cluster Services that are
described in Section 3.1, "System Requirements for Novell Cluster Services," on page
4.2 Upgrading OES 2 Clusters (Rolling Cluster
Upgrade)
Performing a rolling cluster upgrade on your OES 2 Linux cluster lets you keep your cluster up and
running. Your users can continue to access cluster resources while the upgrade is being performed.
During a rolling cluster upgrade, one server is upgraded to OES 2 SP2 Linux while the other servers
in the cluster continue running older versions of OES 2 Linux. Then, if desired, another server can
be upgraded, and then another, until all servers in the cluster have been upgraded.
You can also add OES 2 SP2 Linux servers to the existing OES 2 Linux (or later) cluster, and
remove the old ervers from the cluster.
You should complete the upgrade as soon as possible. Don't leave the cluster in a mixed version
state for an extended period.
Make sure that any services that are available only in OES 2 SP1 or later (such as Novell CIFS or
Novell AFP) are set up with preferred nodes for failover that are running OES 2 SP1 or later.
Consider the following issues when working with a mixed-release OES 2 cluster:
OES 2 SP1 features that are not available for the OES 2 Linux:
Novell AFP for Linux
Novell CIFS for Linux
64-bit eDirectory 8.8.4 support
Domain Services for Windows support
NSS
/(No)atime
NSS
/PoxixPermissionMask
NSS
/UnplugAlways
The NSS default namespace on OES 2 SP1 Linux was changed to Long. This is not a problem
for existing pools, but you should be aware of the difference when creating pools on OES 2
nodes versus OES 2 SP1 (or later) nodes.
®
Open Enterprise (OES) 2 Linux (or later) cluster to OES 2 SP2 Linux.
option
option
option
27.
Upgrading OES 2 Linux Clusters
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