Installation guide

100 NetIQ eDirectory 8.8 SP8 Installation Guide
10.1 Clustering eDirectory Services on Linux
This section describes how to configure eDirectory 8.8 by using high availability clustering on Linux.
 Section 10.1.1, “Prerequisites,” on page 100
 Section 10.1.2, “Installing and Configuring eDirectory,” on page 100
 Section 10.1.3, “Configuring SNMP Server in Clustered Linux Environments,” on page 102
10.1.1 Prerequisites
 Two or more Linux servers with clustering software
 External shared storage supported by the cluster software, with sufficient disk space to store all
eDirectory and NICI data
 Virtual IP address
 NetIQ eDirectory 8.8 SP8 or later
NOTE: The nds-cluster-config utility only supports configuring the root eDirectory instance.
eDirectory does not support configuring multiple instances and non-root installations of
eDirectory in a cluster environment.
10.1.2 Installing and Configuring eDirectory
1 Install and configure eDirectory on the server you want to use as the primary cluster node. For
more information on installation and configuration procedures, refer to the Section 2.6.2, “Using
the nds-install Utility to Install eDirectory Components,” on page 30.
NOTE
 When configuring eDirectory, the default NCP server name is the host server name of the
computer on which you installed eDirectory. Because eDirectory is hosted on multiple hosts
in a clustered environment, however, you should specify an NCP server name that is
unique to the cluster instead of using the default name. For example, you can specify the
name
clusterserver for the NCP server when you configure eDirectory on the primary
cluster node.
 During the configuration process, ensure you set the virtual IP address for your eDirectory
installation. In a clustered environment, eDirectory only listens on the virtual IP address,
not on the system IP address.
2 After you install and configure eDirectory, navigate to the nds.conf file, which is located in the
/etc/opt/novell/eDirectory/conf .
3 Edit the nds.conf file to set the value of the n4u.nds.preferred-server setting to the virtual
IP address of the clustered installation, then save and close the file.
4 Verify the eDirectory installation by using the ndsstat command.
eDirectory must be up and running on the primary cluster node.
5 Mount the shared file system by using the cluster manager.
6 Back up all data in the following directories before running the configuration utility:

/var/opt/novell/nici
 /var/opt/novell/eDirectory/data ( n4u.server.vardir )

/var/opt/novell/eDirectory/data/ ( n4u.nds.dir )