To resize your AuraDB Instance:

• Open the Neo4j Aura console.
• Click on Configure and the resize screen will appear

 

• Choose the new size for your Instance and then click on Configure button.

 

The operation should be complete within a few minutes (may take longer for larger instances), during which time your AuraDB Instance will continue to be available.

However, since the resize operation results in a rolling restart of the cluster members, an increase in query latency is expected during and immediately after the resize operation.

Official Documentation: Adjust Aura storage