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Aqua – Reserved Instance Break-Even Point

How to monitor the utilisation rate needed for your RIs and SPs to be cost-effective.

Written by Alphaus Support Team

Overview

The break-even point feature is available within Instance Reservation Management in Aqua. It displays the break-even point for each Reserved Instance (RI), allowing you to monitor the utilisation rate at which your RI and SP investments become ROI-positive.


How to Use

Identifying the utilisation rate needed to stay above break-even

  1. Click the Break-Even Point tab on any instance to display the graph

  2. Reference the Optimal Utilisation Rate (orange dotted line) on the graph — this shows the minimum utilisation rate needed for the RI or SP to remain cost-effective

  3. For instances with low utilisation rates, cross-reference with the RI/SP Management screen for a more detailed analysis to determine whether ROI is positive or negative

Understanding when your RI or SP investment becomes cost-effective

In most cases, the cost-effectiveness of an RI or SP turns positive approximately 9 months after purchase — though this varies depending on the instance, options, and payment method chosen.

If utilisation falls below 100%, the break-even point will shift accordingly. Use this feature as a reference when evaluating the performance of your purchased RIs and SPs.

Example: Even if your utilisation rate is lower than expected, if the break-even point falls before the RI or SP expiry date, the ROI is still positive.


Graph Reference

Axes

Axis

Description

Left Y-axis

Daily cost ($) — shows on-demand usage cost and RI/SP purchase cost per instance

Right Y-axis

RI/SP utilisation rate (%)

X-axis

Time

Graph lines

Line

Description

Public on-demand cost (blue dotted)

The cost if the instance were running entirely on public on-demand pricing

Actual on-demand cost (blue solid)

The actual on-demand cost of running instances

Usage cost (light blue)

The daily cost incurred as a result of purchasing the RI

Utilisation (orange)

The optimal utilisation rate required for the RI or SP to remain ROI-positive

Indicators

Indicator

Description

End date

The date the RI or SP expires

Break-even point

The point at which the RI or SP cost becomes lower than the public on-demand cost

Estimated break-even point

The forecasted break-even point based on current trends


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