NCU capacity and limits

NCU limits help control costs by setting usage boundaries for Application runs with "Included" size configurations. Every Nuvolos subscription comes with a total NCU limit that can be distributed across resource pools.

Why set CU limits? They're an effective tool for managing resource pool or project costs.

What defines an NCU limit

• CU Limit (Capacity): The total CU hours allocated for your subscription period. Each "Included" size application run mapped to this resource pool draws from this capacity. For example, a 2 CU application running for 3 hours consumes 6 CU hours.

• CU Limit Term Start: When limit becomes active (contract start or renewal date).

• CU Limit Term End: When allocated hours expire (subscription period end date).

Tracking your consumption

The NCU Capacity tile on the Overview tab displays total usage across all application sessions configured with Included sizes during the active subscription period. The progress bar provides a quick snapshot of consumption since the NCU limit started. Resource pool managers can click DETAILS at the bottom right of the tile to open Plan utilization with the date range preset to the current NCU limit period.

What happens when you reach your limit

When you reach the NCU limit, or it expires, Included-size Applications continue to function:

• They can still start normally.

• Running Applications continue without interruption.

Continued operation requires a positive Credit balance - overage is automatically billed against Credits. To resolve overage:

• Purchase more NCU capacity - contact your account manager to add NCU hours to the subscription.

• Use Credits - pay for excess NCU hours with Credits. A positive Credit balance is required to start new Included-size Applications during overage. Check the prices page for current overage rates.

Quick summary:

• CU hour consumption applies only to "Included" size configurations

• Consumption depends on your session configuration:

  • Application size (e.g., 4 CU, 16 CU)

  • Add-ons (e.g., Redis, PostgreSQL)

• Once you exhaust your CU capacity, credit charges begin automatically

Track credit deductions from NCU overage on the Credit Utilization content tab.

Resource pools without CU limits

Some resource pools - typically budget-type pools focused on Credits - have no NCU limit configured. In these pools, only credit-based Application sizes can run.