V11 Service Pack 12
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Configuring a Floating Host Name for the CommServe or MediaAgent Software

A floating host name is a virtual host name that you use to install your CommServe or MediaAgent software. All the clients and MediaAgents communicate to the CommServe host using the floating host name.

Using a floating host name provides the following benefits:

  • Eliminates the need to redirect all clients and MediaAgents after moving the CommServe to a new host.
  • Minimizes the downtime for failover operations.

A floating host name is useful in the following scenarios:

  • Upgrading the hardware of your CommServe or MediaAgent
  • Setting up a standby CommServe host for disaster recovery failover
  • Separating the CommServe component from a CommServe-MediaAgent host

There are multiple ways to define a floating host name. For example, you can update the host file on the computer or use custom scripts to update the DNS server.

In this procedure, we will configure the floating host name using the Windows DNS server.

Procedure

You can configure a floating host name for a new or an existing CommServe host.

Configuring the Floating Host Name on a New CommServe or MediaAgent Host

  1. Define the floating host name and map it to the IP address of the CommServe or MediaAgent host.

    For example, to define the floating host name create a DNS record with a virtual host name and IP address of the CommServe or MediaAgent host. For more information on creating a DNS record, refer to the documentation associated with DNS software implemented in your environment.

  2. Install the CommServe and MediaAgent software. Make sure to enter the floating host name when prompted for the CommServe or MediaAgent host name.

    For instructions on installing the CommServe software, see CommServe Installation.

    For instructions on installing the MediaAgent software, see MediaAgent Installation.

Configuring the Floating Host Name on an Existing CommServe or MediaAgent Host

If the CommServe or MediaAgent computer already exists, configure the floating CommServe host name using the existing CommServe or MediaAgent host name.

  1. Rename the existing computer host name. Complete the following steps:

    To rename the CommServe computer, complete the following steps:

    1. Perform a Disaster Recovery Backup of the CommServe host.
    2. Make sure that all clients and MediaAgents point to the production (existing) CommServe host name and not to the IP address. For instructions on changing the CommServe name on clients, see Changing the Client Computer Name.
    3. Disable all CommCell operations on the CommServe host. See Enabling or Disabling CommCell Activities.
    4. Rename the existing computer host name. See Microsoft manual to change the computer host name of a Windows Server. If the client name and host name are different from the computer host name, then skip this step.
    5. Restart the computer.

    To rename a MediaAgent computer, complete the following steps:

    1. If there are any running jobs that use the MediaAgent, suspend the jobs or wait for the jobs to complete. See Suspending a Job.
    2. Rename the existing computer host name. See Microsoft manual to change the computer host name of a Windows Server. If the client name and host name are different from the computer host name, then skip this step.
    3. Restart the computer.

    After restart, the computer name is renamed to the new name, but the CommServe or MediaAgent software still uses the old host name. The old name will be used as a floating host name during this set up.

  2. Define the floating host name and map it to the IP address of the CommServe or MediaAgent host.

    For example, to define the floating host name, create a DNS record with a virtual host name and IP address of the CommServe or MediaAgent host. For more information on creating a DNS record, refer to the documentation associated with DNS software implemented in your environment.

Last modified: 10/13/2017 7:59:15 AM