Dell PowerConnect W Clearpass 100 Software 3.7 Deployment Guide - Page 357

Cluster Deployment, Cluster Maintenance

Page 357 highlights

The Cluster Initialization form is displayed. Select the check box and click the Initialize Cluster button to proceed. During the cluster initialization process, the entire contents of the RADIUS database (including guest accounts, user roles, and accounting history) and all configuration settings of the primary node will be replicated to the secondary node. The existing database contents and configuration settings on the secondary node will be destroyed. It is very important to ensure that you have selected the correct node as the primary node, particularly if you are rebuilding the cluster. If in doubt, it is recommended that you perform a complete backup of both nodes prior to initializing the cluster. Several status messages and a progress meter will be displayed while the cluster is initialized, which may take several minutes depending on the amount of data to be replicated. Once the initialization process completes, you will be returned to the High Availability start page, where the cluster status will be displayed as: The cluster is running normally. Cluster Deployment After setting up a cluster, you must make appropriate configuration changes for your network to take advantage of the cluster's fault tolerance. The principal configuration change required is to replace the IP address of a single Amigopod server with the virtual IP address of the cluster.  NAS devices and other RADIUS clients should be configured with the cluster IP address.  Operators should use the cluster's IP address when provisioning guest accounts.  Configure NAS devices to redirect visitors to the cluster's IP address for Web login pages. Only the IP address in the redirection URL should be changed; the remainder of the redirection URL should not be altered. The network administrator should use the node IP addresses to perform system administration tasks on each node, including managing the cluster itself. Cluster Maintenance Use the Cluster Maintenance command link to access maintenance functions related to the cluster. Amigopod 3.7 | Deployment Guide High Availability Services | 357

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Amigopod 3.7
|
Deployment Guide
High Availability Services
|
357
The
Cluster Initialization
form is displayed.
Select the check box and click the
 
Initialize Cluster
button to proceed.
Several status messages and a progress meter will be displayed while the cluster is initialized, which may
take several minutes depending on the amount of data to be replicated.
Once the initialization process completes, you will be returned to the High Availability start page, where the
cluster status will be displayed as:
The cluster is running normally.
Cluster Deployment
After setting up a cluster, you must make appropriate configuration changes for your network to take
advantage of the cluster’s fault tolerance.
The principal configuration change required is to replace the IP address of a single Amigopod server with
the virtual IP address of the cluster.
NAS devices and other RADIUS clients should be configured with the cluster IP address.
Operators should use the cluster’s IP address when provisioning guest accounts.
Configure NAS devices to redirect visitors to the cluster’s IP address for Web login pages. Only the IP
address in the redirection URL should be changed; the remainder of the redirection URL should not be
altered.
The network administrator should use the node IP addresses to perform system administration tasks on
each node, including managing the cluster itself.
Cluster Maintenance
Use the
Cluster Maintenance
command link to access maintenance functions related to the cluster.
During the cluster initialization process, the entire contents of the RADIUS database (including guest accounts,
user roles, and accounting history) and all configuration settings of the primary node will be replicated to the
secondary node. The existing database contents and configuration settings on the secondary node will be
destroyed. It is very important to ensure that you have selected the correct node as the primary node, particularly if
you are rebuilding the cluster. If in doubt, it is recommended that you perform a complete backup of both nodes
prior to initializing the cluster.