# Prerequisites for Adding Nodes to an Existing Commvault Grid Storage Pool

The following prerequisites are required to add additional nodes:

## Existing Node Requirements

Review the following requirements to add an existing node:

- Check the following minimum required versions in your existing setup and make sure to upgrade the versions where needed.

  - CommServe Server Version

    View the CommServe server version to ensure that latest version of Innovation Release 11.42 is available.

    If the CommServe server is in an earlier version, update the software to the latest maintenance release version as described in Updating Commvault Software on a Server.

  - Commvault Grid MediaAgents Version

    View the version for the Commvault Grid MediaAgents associated with the storage pool in which you plan to add the new nodes to make sure that the latest version of Innovation Release 11.42 is available.

    Verify and ensure that all the MediaAgents in the storage pool have the same software version.

    If one or more MediaAgent is in an earlier version, update the software to the latest maintenance release version as described in Updating Commvault Software on a Server.

  - Commvault Grid Platform Version

    View the Commvault Grid platform version in the existing nodes to make sure that Commvault Grid Platform Version 2.2408 (or later) is available.

    For Commvault Grid clusters that was installed using the HyperScale ISO 3.x images, make sure that Commvault Grid Platform Version 3.2408 (or later) version is available.

    If one or more nodes is in an earlier version, install the OS updates as described in Installing Operating System Updates on Commvault Grid.

    Verify and ensure that all the nodes in the storage pool have the same platform version.

  If the above requirements are met, you do not require to download and install software and platform version updates to add additional nodes.

- Enable root access, if root access is disabled in the storage pool. For more information, see Enabling or Disabling Root Access.

  Note

  Do not change the default root password on the node. (You will be prompted for a new password, during the Add Node operation.)

- Verify that ICMP/PING request to default Gateway is enabled on the node. If disabled, update the network settings to allow ICMP/PING to the default Gateway.

## New Node Requirements

Consider the following before adding new nodes:

- New nodes must be identical to the existing nodes in the storage pool, with the same drive count and drive size.

  Mixing of certified hardware vendors or server generations is supported provided the same drive count and drive size is maintained.

  If the same size drive cannot be used, larger drives may be used, however, they will be formatted to match the existing drive size, resulting in some loss of native capacity.

  Mixing of Appliance nodes and Reference Architecture nodes in the same storage pool is not supported.

- A maximum of 12 nodes can be present in a storage pool.

  See also: Sizing Guidelines and Capacity Planning

- The Managed Service Provider (MSP) administrator or the tenant administrator performing the installation must obtain the authorization code.

  For instructions on activating the authorization code, see User Administration and Security.

## New Node Setup

Setup the hardware in the new nodes using the following information:

- Racking the Hardware

  Rack the new Commvault Grid Appliance nodes to properly mount and secure the hardware.

- Determine the network configuration in your existing setup

  You must setup the new nodes using the same topology that was originally used in your existing setup. Check your existing network configuration to understand the network topology used in the existing nodes.

  For more information about the supported topologies, see Determining Topology for Appliance and Reference Architecture

- Setup the DNS

  Setup the necessary DNS records for the new nodes.

  For more information, see Setting Up the DNS.

- Setup the Switches

  Ensure that the switch configurations are in place depending on the network topology in your environment.

  For more information, see Setting Up the Switches.

- Setup the IPMI

  Power on the new nodes and setup the Intelligent Platform Management Interface (IPMI) port.

  For more information, see Setting up a Static IP For Intelligent Platform Management Interface.

- Verify Commvault Grid Image Version

  Image the new node using the latest Innovation Release 11.42 image available in the Commvault Store.

  Ensure that the Commvault software version and CVFS version on the newly imaged node are equal to or earlier than the Commvault version currently running on the existing cluster nodes. For more information, see Re-Imaging Commvault Grid .

- Obtain the CommServe server credentials

  Obtain the necessary credentials to connect to existing CommServe server.

- Verify that ICMP/PING request to default Gateway is enabled on the node. If disabled, update the network settings to allow ICMP/PING to the default Gateway.

×

Loading...