Each cluster is assigned a Global Unique Identifier (GUID). This GUID is used by the system software to identify the cluster and does not appear in any of the System Administration Tool forms. Before a data-sharing voice cluster can be split into two distinct SDS clusters, you must reset the Global Unique Identifier (GUID) on one of the existing cluster elements. There are two procedures that you can use:
Reset the GUID of one of the cluster elements from an element outside the cluster
Remove all the elements from one of the element's in the smaller cluster and create a new cluster
To split a data-sharing cluster
Log into an element that will, after you split the cluster, belong to the smaller of the two clusters. In this procedure, cluster A is defined as the smaller cluster, and element A1 is defined as a member of cluster A.
Ensure that the elements are sharing data with each other and then turn SDS off and then on again on each element that will belong to cluster A.
Access the System Options form.
Click Change.
Set the System Data Synchronization option to No to disable SDS. When the option is set to No, data sharing with any other system is not possible.
Click Save.
Reset
the Global Unique Identifier (GUID):
Option 1 (preferred):
Reset the cluster GUID of element A1 from another network element that does not belong to any cluster. You can also use an existing cluster element by restoring a database that does not SDS enabled. From the non-clustered network element, create a virtual cluster by adding element A1 to the Cluster Elements form and then start sharing with element A1. This step will configure element A1 with the hidden GUID of the new cluster.
Enable and then disable SDS on cluster element A1.
Delete element A1 and the virtual cluster from the non-clustered element.
Proceed to step 4.
Option 2:
Remove all the elements from one of the element's in the smaller cluster and create a new cluster
Reset the hidden cluster identifier of one element (A1) that is a member of cluster A by completely removing all the cluster elements from the Cluster Elements form of one of the elements (A1) in cluster A (smaller cluster). Note the you must remove the cluster dependent data (CEID Index, CEID Digits, Feature DN number, Remote Directory Number entries, and ARS programming). This step deletes the hidden cluster identifier on this element.
Create a new cluster on this element and then add the member elements as required.
Proceed to step 4.
From the member of cluster A where the cluster GUID has been reset, start sharing with all its cluster members.
Update the cluster name and PNI if necessary.
Remove the elements that you do not want to belong to cluster A from the Cluster Elements form of each member element of cluster A. Note the you must remove the dependent data (CEID Index, CEID Digits, Feature DN number, Remote Directory Number entries, and ARS programming). Then, remove the elements that you do not want to belong to cluster B from the Cluster Elements for each member of cluster B.