Using a Remote MediaAgent or Client as a Standby CommServe


Overview

Requirements

Installing the Standby CommServe on an Existing MediaAgent Computer

Installing the Standby CommServe and the MediaAgent (or the File System iDataAgent) on the Same Computer

Post-Install Considerations


Overview

A remote MediaAgent or a Client computer in the primary production environment can be used as a Standby CommServe for disaster recovery. This setup requires the MediaAgent software or a File System iDataAgent software and the Standby CommServe software to be installed in two separate instances.

On the production environment, the MediaAgent connects to the production CommServe and functions as a remote MediaAgent. In a disaster recovery scenario, the MediaAgent connects to the Standby CommServe and functions as a local MediaAgent.

The client connects with the CommServe in the production environment. In the disaster recovery scenario the client connects with the standby CommServe.

This document describes the steps involved in installing the Standby CommServe in the following two scenarios:


Requirements

Review the following license requirements before proceeding with the installation.


Installing the Standby CommServe on an Existing MediaAgent or Client Computer

The following procedure explains the steps involved in installing the Standby CommServe on an existing MediaAgent or client computer in the production environment.

Prepare the MediaAgent or Client Computer

1. Stop the services on the MediaAgent or client computer. See Stop Services on Windows for step-by-step instructions.
2. Since the CommServe requires the standard ports (8400, 8401, and 8402) to operate, if the MediaAgent is operating using these standard ports, then change them to non-standard ports (for example, 8500, 8501, etc.) See Changing Port Numbers for step-by-step instructions to change the port numbers.

Install the Disaster Recovery CommServe

3. Enable multi instancing feature on the computer. Create the bAllowMultiInstances registry key on the computer to enable the multi instancing feature.

See How to Use Multi Instancing for additional information.

4. Install the CommServe in a new instance. See CommServe Deployment for more information on installing the CommServe software.

During installation, in the CommServe Name screen, provide a unique name for the CommServe Client Name and CommServe Host Name. This must be different than the client name and the host name used by the MediaAgent software.

5. Stop the CommServe services. See Stop Services on Windows for step-by-step instructions.
6. Start the Base and the MediaAgent Services to resume the MediaAgent operations.

Or

Start the Base Services to connect the client with the Production CommServe.

See start Start Services on Windows for step-by-step instructions.

Installing the Standby CommServe and the MediaAgent (or the File System iDataAgent) on the Same Computer

The following procedure explains the steps involved in installing the Standby CommServe and the MediaAgent on the same computer.

Install the CommServe

1. Install the CommServe software. Ensure that the primary CommServe is setup using the Dual IP license. See CommServe Deployment for more information on installing the CommServe software.
2. Stop the CommServe services. See Stop Services on Windows for step-by-step instructions.

Install the MediaAgent or File System iDataAgent

3. Enable multi instancing feature on the computer. Create the bAllowMultiInstances registry key on the computer to enable the multi instancing feature.

See How to Use Multi Instancing for additional information.

4. Install the MediaAgent in a new instance.

Or

Install the File System iDataAgent in a new instance.

After installation, the client computer will be able to connects to the Primary CommServe.

See MediaAgent Deployment for more information on installing the MediaAgent software. If you chose to install the File System, see Windows File System Deployment.

During the installation, ensure to provide the following details.

  • In the CommServe Name screen, CommServe Client Name and CommServe Host Name fields, provide the client name and the host name of the Primary CommServe.
  • In the Communication Interface screen, provide (enter) a unique name for the client name and the interface name of the MediaAgent. This must be different from the client name and the host name used by the Standby CommServe. E.g. You may use IP address as the host name for the MediaAgent install.
  • In the Port Number Selection screen, provide non-default port numbers for the GxCVD and GxEvMgrC services (for example, 8500, 8501, etc.)
  After installation, the MediaAgent is installed to the Primary CommServe. If the File System is installed, the client computer will be able to connect to the Primary CommServe.  

Post-Install Considerations

Review the following post-install considerations.

  1. Ensure that all the updates installed in the primary CommServe are also installed on the Standby CommServe.
  2. See Disaster Recovery for more information on disaster recovery solutions for the CommCell.

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