Cluster Configuration - Prerequisites

Before you install the Commvault software in a cluster environment, review the following prerequisites and requirements.

Verify System Requirements

Verify that the computer in which you want to install the software satisfies the minimum requirements specified in System Requirements.

Download the Software

Download the latest Commvault software using the Download Manager application. The Download Manager bundles an installation package from the Commvault components that you chose to download. Use the installation package to launch the software installer on a client computer.

For instructions, use one of the following procedures:

Verify Network TCP Port Requirements

For a given cluster server, the MediaAgent, Agent, or other software component installed on every physical node in a cluster which is configured to host that cluster server must have the same port numbers configured. Thus, if you have a cluster server VS1, and three physical computers configured to host VS1, then all the three computers must have the same Network TCP port numbers configured for the network interface used by VS1. For greater detail, consider this example:

Node A is configured to host cluster server VS1. Instance001 has the an Agent installed to protect application data on VS1; during install, Port 8502 was specified for the Communications Service (CVD) and Port 8503 was specified for the Client Manager Service (ClMgrS).
Node B is also configured to host VS1. Instance001 has the same Agent installed to protect the application data on VS1; during the Agent install, Port 8502 must be specified for the Communications Service (CVD) and Port 8503 must be specified for the Client Manager Service (ClMgrS) to match the Network TCP port number configuration of Node A.

Note

Communication occurs between the CommServe/MediaAgents and the respective cluster nodes, and not the cluster server (virtual node).

Verify License Requirements

Depending on the cluster type (Windows or Unix), the following table shows the file system and cluster licenses needed for the physical computer associated with the cluster group client:

Agent/Component	License Type
AIX
IBM AIX File System	Server File System
IBM PowerHA for AIX (formerly HACMP) Cluster VERITAS Cluster for IBM AIX	Cluster Group
HP-UX
HP-UX File System	Server File System
VERITAS Cluster for HP-UX	Cluster Group
Linux
Linux File System	Server File System
Red Hat Linux Cluster Veritas Cluster for Linux	Cluster Group
Solaris
Sun Solaris File System	Server File System
Solaris Sun Cluster Veritas Cluster for Solaris	Cluster Group
Windows
Microsoft Windows File System (Server Class)	Server File system
Microsoft Windows File System (Cluster)	Cluster Group
MediaAgent

MediaAgent

You must have a license for each physical and virtual node where the MediaAgent is installed. If you do not plan to use the MediaAgent on the physical nodes, install the MediaAgent as a Restore Only Agent, which does not consume a license.

Agent/Component	License Type
MediaAgent (Windows or UNIX)	MediaAgents

SAP HANA

If you have a cluster environment configured with the SAP HANA application, you must obtain the following license:

Agent/Component	License Type
SAP HANA	Application Class 3