Pre-Change Task List for Cisco Unified Communications Manager Nodes
The following table lists the tasks to perform before you proceed to change the IP address and hostname for Cisco Unified Communications Manager nodes. You must perform these procedures during a scheduled maintenance window. Perform all system health checks before you perform the pre-change setup tasks.
For details about any of the tasks that are listed, see topics related to performing system health checks on nodes and pre-change setup.
Caution |
If you do not receive the results that you expect when you perform these tasks, do not continue until you have resolved the issue. |
Item |
Task |
||||
---|---|---|---|---|---|
System health checks |
|||||
1 |
If you have DNS configured anywhere on the Cisco Unified Communications Manager servers, ensure that forward and reverse records (for example, A record and PTR record) are configured and that the DNS is reachable and working. |
||||
2 |
Ensure that all servers in the cluster are up and available, and check for any active ServerDown alerts. |
||||
3 |
Check the database replication status of all Cisco Unified Communications Manager nodes in the cluster to ensure that all servers are replicating database changes successfully. |
||||
4 |
Check network connectivity and DNS server configuration. |
||||
Pre-change setup tasks |
|||||
5 |
Use Cisco Unified Communications Manager Administration to compile a list of all nodes in the cluster. Retain this information for use later. |
||||
6 |
Run a manual Disaster Recovery System backup and ensure that all nodes and active services are backed up successfully. For more information, see the Administration Guide for Cisco Unified Communications Manager . |
||||
7 |
For security-enabled clusters (Cluster Security Mode 1 - Mixed), update the Certificate Trust List (CTL) file. For detailed instructions on updating and managing the CTL file, including adding a new TFTP server to an existing CTL file, see the Cisco Unified Communications Manager Security Guide. All IP phones that support security always download the CTL file, which includes the IP address of the TFTP servers with which the phones are allowed to communicate. If you change the IP address of one or more TFTP servers, you must first add the new IP addresses to the CTL file so that the phones can communicate with their TFTP server.
|