Novell BUSINESS CONTINUITY CLUSTERING 1.2.1 - ADMINISTRATION Administration Manual page 74

Driver Set Summary for a Single-Tree, Three-Cluster Business Continuity Cluster
Table 9-6
Driver Instance
Cluster Resource
Cluster Resource
If one of the clusters is in a different tree, or if the User objects are in a separate eDirectory partition,
you also need to install an instance of the User Object Synchronization driver on a different port for
the two nodes that communicate across the tree (or across the partitions).
One and Cluster Two in Tree A (or User_PartitionA) and Cluster Three in Tree B (or
User_PartitionB). The User Object Synchronization driver has been set up for Cluster One and
Cluster Three to communicate across the trees (or across the partitions).
Three-Cluster Driver Set Example with User Object Synchronization
Table 9-7
Cluster Resource and
User Object
Publisher Node
Cluster One
(master node)
Cluster Two
Cluster Three
(master node in the
second partition)
You install the drivers on each cluster, with multiple instances needed only where the master cluster
talks to multiple clusters and across trees, as shown in
Driver Set Summary for a Three-Cluster Business Continuity Cluster with User Object Synchronization
Table 9-8
Driver Instance
Cluster Resource
Cluster Resource
User Object
When you extend the single-tree example for a four-cluster business continuity cluster, you can set
up similar communications channels for the Cluster Resource Synchronization driver between
Cluster One and Cluster Two, between Cluster One and Cluster Three, and between Cluster One and
Cluster Four. You must assign a separate port for each of these channels, as shown in
74 BCC 1.2.1: Administration Guide for OES 2 SP2 Linux
Driver Set for Cluster One Driver Set for Cluster Two
C1 to C2, port 2002
C1 to C3, port 2003
Subscriber Node
Cluster One
Not applicable
CR, port 2002
CR, port 2003
UO, port 2001
Driver Set for Cluster One Driver Set for Cluster Two
C1 to C2, port 2002
C1 to C3, port 2003
C1 to C3, port 2001
C2 to C1, port 2002
Table 9-7
Cluster Two
CR, port 2002
Not applicable
No channel
Table 9-8.
C2 to C1, port 2002
Driver Set for Cluster
Three
C3 to C1, port 2003
shows Cluster
Cluster Three
CR, port 2003
UO, port 2001
No channel
Not applicable
Driver Set for Cluster
Three
C3 to C1, port 2003
C3 to C1, port 2001
Table 9-9.