Reconfiguring interconnects

To reconfigure interconnects:

1. Determine the proper IP address for the LLT links using the ifconfig command.

2. Shut down the cluster using the shutdown cluster command.

3. Use qrmutil to reconfigure the interconnects. Run this command for each instance in the cluster, using the appropriate instance name, primary and secondary addresses:

   qrmutil --quorum_dev=path_to_quorum_device --instance=instance_name 
   --primary-address=address_of_primary_interconnect 
   --secondary-address=address_of_secondary_interconnect
   

   This example configures the “ase1” instance to use a primary address of 192.168.0.1 and a secondary address of 192.168.0.2:

   qrmutil --quorum_dev=/sybase_cfs/quorum.dat --instance=ase1 
   --primary-address=192.168.0.1 --secondary-address=192.168.0.2
   

   As an alternative to running step 3 for each instance, you can extract the current configuration to a file (as in step 4), edit the file for each instance, and reload the file onto the quorum device using the --load-config parameter.

4. Use qrmutil --extract-config parameter to create a backup of the new cluster configuration. This example backs up the cluster configuration to the quorum.bak file:

   qrmutil --quorum_dev=/sybase_cfs/quorum.dat 
   --extract-config=/sybase_cfs/quorum.bak
   

5. Restart the Cluster Edition.