Qumulo in AWS: Add a Node to an Existing Cloud Cluster

IN THIS ARTICLE

Outlines how to add a node to an existing cloud cluster

REQUIREMENTS

• Cloud Cluster with Qumulo Core 2.8.6 and above 
• AWS Console access
• Command line (qq CLI) tools installed via API & Tools in the Web UI

IMPORTANT! If you have configured IP failover for your cloud cluster, you must add additional floating IP's prior to adding another node. Reference the Qumulo in AWS: Configure IP Failover article for additional details. 

DETAILS

Running a clustered configuration of Qumulo in AWS across 4 or more Qumulo nodes improves performance and increases capacity by providing a minimum of 20TB of raw storage. Larger systems with higher node numbers will have increased storage efficiency dependent on the initial number of nodes used to form the cluster. The process of adding a new node to an existing cloud cluster is incredibly straightforward using the private IPs of the AWS instance. 

Add a node via the UI

• In a browser window, enter https:// followed by the Private IP address included in the Description tab of the instance listing for any node on the existing cluster

Note: Qumulo is configured with a self-signed certificate by default which may cause your browser to display a warning. This is normal behavior. A custom certificate can be installed at a later time to avoid the warning if needed. At the warning, select ADVANCED and click Proceed to continue.

• Login to the Qumulo Core Web UI
• Hover over Cluster and select Add Nodes
  
  
  

• Enter the IP addresses of the unconfigured nodes you wish to add separating each address with a comma
  
  
  
  
• Click Add Selected Nodes to Cluster
• Select Yes to confirm the addition of the selected node(s)
  
  
  
  
• A dialog box will display as the node(s) are configured and added to the cluster
  
  
  

Once the new node is configured and added, the cluster Overview page will appear with a successful confirmation banner at the top. The newly configured node(s) will now display in the listing table for the cluster.

NOTE: Existing nodes will retain their numbering once the new node is added.

Add a node via the CLI

• SSH onto one of the nodes using the IP address
• Run the following command using the private IP addresses from the node(s) that will be added to cluster
  • Separate multiple IP addresses with a space 

qq node_add --node-ips PRIVATE_IP 

IMPORTANT! It is not recommended to run a Qumulo cluster in AWS for production data without a replication or backup strategy.

RESOLUTION

You should now be able to successfully add a node to an existing cloud cluster

ADDITIONAL RESOURCES

Qumulo in AWS: Configure IP Failover

Qumulo in AWS: Build a Multi-Instance Cluster with CloudFormation

QQ CLI: Cluster Configuration

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