Adding Additional Nodes to a Commvault Grid Storage Pool in a VaultOS 9 Deployment

New nodes can be added to an existing Commvault Grid cluster to expand the storage pool. A maximum of 12 nodes can be present in a storage pool.

Support

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

Supported operating system combinations

You can add nodes that run the following operating system versions to an existing Commvault Grid cluster.

Before You Begin

• If you plan to connect to an existing CommServe server, gather the following information before you begin:

  • The fully qualified domain name (FQDN) of the CommServe server based on the endpoint type used in your deployment.

    Endpoint Type	Example	Applicable to SaaS Deployment
    CommServe FQDN Registration	test.commvault.com	No
    Backup Gateway (default port)	test.eastus2.cloudapp.azure.com	Yes
    Backup Gateway (non-default port)	test.eastus2.cloudapp.azure.com:443	Yes
    Registration URL (Metrics)	https://metrics.metallic.io	Yes
    Registration URL (CommServe)	https://test.commvault.com	No

  • The credentials of an administrative user.

  • Confirmation that TCP ports 8400 and 443 are open between the nodes and the CommServe server.

• Check the Prerequisites needed to add an additional node to an existing Commvault Grid storage pool.

Procedure

1. Login to the new node and setup the network using the steps described in one of the following pages, depending on the network topology used in the existing storage pool:

   • Basic Topology

   • Basic Topology with Management Network

   • Bonded Topology

   • Bonded Topology with Management Network

   • VLAN Topology

   • VLAN Topology with Management Network

   • Bonded VLAN Topology

   • Bonded VLAN Topology wth Management Network

2. After configuring the network in a node, the Node configuration dialog box appears.

   

3. Click one of the following:

   • Click NO, EXIT to configure another node in the storage pool.

     Repeat the steps (steps 1 through 8) from another node.

   • Click YES, CONTINUE if this is the last node in the storage pool.

     The Setup Type page appears.

     

4. Click Add node(s) to existing storage pool setup and then click NEXT.

   The Select Nodes page appears.

   

5. Select the nodes as follows:

   1. Click the down arrow at the top right area of the page to view a list of available nodes.

   2. Click and select the nodes that must be included in the storage pool.

      Note

      A maximum of 12 nodes can be added to an existing storage pool. Nodes are listed by the respective node names. If one or more nodes are missing from the list, there is likely a cabling or network configuration issue. Verify the network configuration and then relaunch the installer.
      To troubleshoot, see Troubleshooting Network Configuration Errors.

   3. Click NEXT.

      The selected nodes will be listed in the Select Nodes page.

      Once completed your screen should be similar to the one shown in the following image: (The number of nodes will vary depending on the number of nodes you select.)

      

   4. Click NEXT.

      The Network Configuration Summary page appears. (The following image is for illustrative purposes only. The summary information will vary based on the network configuration and the number of nodes.)

      

6. Verify the summary for each node by clicking the tabs associated with each node. Ensure that the nodes are accurately configured and then click NEXT.

   The setup process configures the network for the nodes. This will take some time to complete.

   Note

   If an error is found, click Exit, login to the node in which the error is found and repeat all the steps to correct the error. The installation can be continued from that node.

   The Network Status page appears.

   

7. Check the status to ensure that all the nodes have a green status to indicate that the network settings is validated and accurate. Click NEXT.

   Note

   If an error is found, hover your cursor over the status icon to view more information on the error. If a node is missing, exit the installer and confirm that all the nodes can ping each other on the storage pool network.

   The Server Credentials page appears.

   

8. Add the following information:

   1. In the Existing cluster node FQDN box, enter a fully qualified host name of any one of the existing nodes in the storage pool.

   2. In the Root password box, type the root password for the node.

      Note

      The root password must be the same for all the nodes in the storage pool. Make sure to type the same password.

   3. Click NEXT.

   The Server Information page appears.

   

9. Add the following information:

   1. In the CommServe hostname (FQDN) box, enter the fully qualified domain name (FQDN) of the CommServe server based on the endpoint type used in your deployment.

      Endpoint Type	Example	Applicable to SaaS Deployment
      CommServe FQDN Registration	test.commvault.com	No
      Backup Gateway (default port)	test.eastus2.cloudapp.azure.com	Yes
      Backup Gateway (non-default port)	test.eastus2.cloudapp.azure.com:443	Yes
      Registration URL (Metrics)	https://metrics.metallic.io	Yes
      Registration URL (CommServe)	https://test.commvault.com	No

      Note

      TCP Ports 8400 & 443 must be open from the nodes to the CommServe server for the registration to work.

   2. In the Auth-code box, enter the authorization code to connect to the CommServe server.

   3. Click NEXT.

   The installer validates the information and will start the installation process. This process may take some time (approximately 45 minutes) to complete. You can monitor the progress using the progress bar.

   Caution

   Do not reboot or stop the installation during this process.

   Once the installation is completed, the Installation page appears.

   

10. Click CLOSE.

What to Do Next

Perform post-setup tasks