Novell BUSINESS CONTINUITY CLUSTERING 1.1 SP2 - ADMINISTRATION, Administration Manual

Page: 87 / 142

Managing a Business Contiuity Cluster 87
no
vd
ocx
(e
n)
13
Ma
y 20
09
If BCC enabled resources need to be BCC disabled, remove the secondary peer clusters from the
resource’s assigned list, then disable BCC only from the primary cluster, either by using iManager or
command line. Do not BCC disable the same resource from multiple peer clusters.
To disable BCC for a cluster resource:
1 Start your Internet browser and enter the URL for iManager.
The URL is http://
server_ip_address /nps/iManager.html. Replace server_ip_address with the
IP address or DNS name of the server that has iManager and the Identity Manager
preconfigured templates for iManager installed.
2 Specify your username and password, specify the tree where you want to log in, then click
Login .
3
In Roles and Tasks , click Clusters , then click the Cluster Options link.
4 Specify the cluster name, or browse and select it.
5
Select the desired cluster resource from the list of Cluster objects
6 Click the Details link.
7 On the Preferred Nodes tab, remove the secondary peer clusters from the Assigned list, then
disable BCC for the resource on the primary peer cluster.
7a Click the Preferred Nodes tab.
7b From the Assigned Nodes list, select the servers in the peer clusters you want to unassign
from the resource, then click the left-arrow button to move the selected servers to the
Unassigned Nodes list.
The primary peer cluster and the node where the resource is running cannot be moved
from the
Assigned list to the Unassigned list.
7c
Click Apply to save node assignment changes.
8 On the Details page, click the Business Continuity tab, deselect the Enable Business Continuity
Features check box, then click Apply .
9 Wait for Identity Manager to synchronize the changes.
This could take from 30 seconds to one minute, depending on your configuration.
10 Delete the Cluster Resource object on the clusters where you no longer want the resource to
run.
7.6 Resolving Business Continuity Cluster
Failures
There are several failure types associated with a business continuity cluster that you should be aware
of. Understanding the failure types and knowing how to respond to each can help you more quickly
recover a cluster. Some of the failure types and responses differ, depending on whether you have
implemented SAN-based mirroring or host-based mirroring. Promoting or demoting LUNs is
sometimes necessary when responding to certain types of failures.