OES Cluster Services for Linux is included on OES. It is necessary to install OES on every server that you want to add to a cluster. You can have up to 32 nodes in each cluster. See Section 5.1, OES Cluster Services Licensing.
Installing OES Cluster Services does the following:
If the eDirectory schema has not already been extended for cluster objects in the tree, the schema is extended.
OES Cluster Services software is installed on the server.
You can install OES Cluster Services when you install the OES platform, or you can install it later on an existing OES server.
Ensure that your system meets the requirements and guidelines in Section 4.0, Planning for OES Cluster Services. Before you install OES Cluster Services, verify that your setup meets these requirements:
If you want OES Cluster Services to use a local eDirectory database on the same server, you must install and configure eDirectory before you configure OES Cluster Services.
If the eDirectory schema was not previously extended in the tree as described in Section A.3, OES Installation extend_schema Command, the user who installs OES Cluster Services must be an administrator user with the rights to extend the schema, such as the tree administrator.
If you have a shared disk system and the server where you are installing OES Cluster Services is the first node in a cluster, install the OES Cluster Services software, then initialize the device you need for the Split Brain Detector (SBD) partition and mark it as shareable. If you plan to mirror the SBD, prepare two devices of the same size. You can create the SBD when you configure Cluster Services on the first node, or you can use the sbdutil utility to create it before you install Cluster Services on a second node in the cluster.
If you have a shared disk system and the server where you are installing Cluster Services is the second node in a cluster, verify that a cluster partition for the cluster’s SBD exists on the first cluster node before you begin the install on the second node.
IMPORTANT:The cluster SBD partition is not required unless you have shared storage.
Typically, you create the SBD when you configure the cluster on the first node as described in Section 5.5.5, Configuring a New Cluster. A one-node cluster that has shared disk storage can be configured without an SBD, but the SBD must be created before you add another node. For information about manually creating an SBD, see:
If eDirectory is not installed locally and you are using remote eDirectory server, then copy the eDirectory CA certificate from the remote eDirectory server /etc/opt/novell/certs/SSCert.pem to /etc/pki/trust/anchors/ and run /usr/sbin/update-ca-certificates.
This section describes only those steps in the install that are directly related to installing OES Cluster Services. For detailed instructions on installing OES, see the OES 2023: Installation Guide.
Repeat the following procedure for each server that you want to add to the cluster:
From the DVD boot menu, select Installation, click Next, then continue through the OES install until you get to the Installation Settings page.
On the Installation Settings page, click Software to open the Software Selection and System Tasks page.
Under Open Enterprise Server, select OES Cluster Services and any other OES components that you want to install, then click Accept.
When you select OES Cluster Services, the following basic services for managing OES are automatically selected:
OES Backup / Storage Management
OES Linux User Management
OES Remote Manager
The following Open Enterprise Server are not automatically selected, but are required for managing and configuring OES Cluster Services:
iManager must be installed on at least one server in the same tree.
eDirectory must already be installed on at least one server in the tree where you are installing the cluster. You can install a replica on the cluster server.
Select other protocols and services according to your planned setup. See Section 4.7, Software Requirements for Cluster Resources.
IMPORTANT:If you deselect a pattern after selecting it, you are instructing the installation program to not install that pattern and all of its dependent patterns. Rather than deselecting a pattern, click Cancel to cancel your software selections, then click the Software heading again to choose your selections again.
Selecting only the patterns that you want to install ensures that the patterns and their dependent patterns and packages are installed.
If you click Accept, then return to software pattern selection page, the selections that you made become your base selections and must be deselected if you want to remove them from the installation proposal.
Continue through the installation process, but do not configure OES Cluster Services when you reach the Open Enterprise Server Configuration page. You configure it later.
After the install, use the Software Updater (or other update methods) to download and apply any updates that are in the SLES and OES Updates channels.
See Updating (Patching) an OES Server
in the OES 2023: Installation Guide.
Ensure that your SAN storage is working properly for the server.
Continue with Section 5.5, Configuring OES Cluster Services.
If you did not install OES Cluster Services during the OES installation, you can install it later by using YaST > Open Enterprise Server > OES Install and Configuration.
Log in to the server as the root user.
In YaST, select Open Enterprise Server > OES Install and Configuration.
On the Software Selection page under Open Enterprise Server, select OES Cluster Services and any other compatible OES components that you want to install.
Services that you have already installed are indicated by a blue check mark in the status check box next to the service.
For information about the options, see Step 3 in Section 5.4.2, Installing OES Cluster Services during an OES Installation.
Click Accept to begin the install, then click Continue to accept changed packages.
Continue through the installation process, but do not configure OES Cluster Services when you reach the Open Enterprise Server Configuration page. You configure it later.
After the install, use the Software Updater (or other update methods) to download and apply any updates that are in the SLES and OES Updates channels.
See Updating (Patching) an OES Server
in the OES 2023: Installation Guide.
Ensure that your SAN storage is working properly for the server.
Continue with Section 5.5, Configuring OES Cluster Services.