Adding vPlus Nodes

Note. To download vPlus installation script, visit Catalogic Software MySupport.

This chapter provides instructions for adding and registering additional vPlus nodes to your existing vPlus server installation. By adding nodes, you can expand the capabilities of your vPlus deployment to handle larger workloads and improve performance.

Prerequisites

Note. Make sure to complete the steps in the Quick Installation Using All-in-one Script before proceeding.

Before adding new vPlus nodes, ensure the following requirements are met:

• The vPlus server is already installed and configured.

• The target systems for new nodes meet the same requirements as the vPlus server:

  • Red Hat Enterprise Linux (RHEL) 8 or CentOS Stream 8

  • Minimum 4 CPU cores, 8 GB RAM, and 100 GB storage

• The vPlus server can access new node machines via SSH using root credentials.

• You have root access to both the vPlus server and new node machines.

Step-by-Step Installation

Follow these steps to add new vPlus nodes:

1. Generate SSH Key on vPlus Server

   On the vPlus server, generate an SSH key if not already present:

   ssh-keygen -f ~/.ssh/id_rsa -P ""

2. Copy SSH Key to New Node

   Copy the public key to each new node you want to add:

   ssh-copy-id -i ~/.ssh/id_rsa.pub root@<NewNodeIP>

   Replace <NewNodeIP> with the IP address of the new node.

3. Modify Installation Script

   Locate the vPlus installation script on the vPlus server. Open it with a text editor and find the following section:

   cat << EOF > hosts
   [all:vars]
   ansible_user=root
   ansible_connection=local
   vprotect_repo=$repo
   
   [server]
   localhost
   
   [nodes]
   localhost node_name=node1
   EOF

   Modify the [all:vars] section to include the server's FQDN or IP:

   [all:vars]
   ansible_user=root
   server_fqdn=<ServerIP>
   ansible_connection=local
   vprotect_repo=$repo

   Add new nodes to the [nodes] section:

   [nodes]
   localhost node_name=node1
   <NewNodeIP> node_name=<NodeName> ansible_connection=ssh ansible_user=root

   Replace <NewNodeIP> with the IP address and <NodeName> with a unique name for each new node.

4. Run Installation Script

   Execute the modified installation script on the vPlus server:

   sudo ./vplus-install.sh

   This will install and configure the new nodes.

Alternative: Manual Node Installation

If you prefer to install nodes manually, follow these steps on each new node machine:

1. Create vProtect Repository File

   Create a new file /etc/yum.repos.d/vProtect.repo with the following content:

   [vProtect]
   async = 1
   baseurl = https://f002.backblazeb2.com/file/DPX-vPlus/current/el8
   gpgcheck = 0
   name = vProtect repo

2. Install vProtect Node Package

   Install the vProtect node package using DNF:

   sudo dnf install vprotect-node

By following these steps, you can successfully add and register new vPlus nodes to expand your deployment.