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Aqua – Azure Cost Optimisation

How to monitor and optimise Azure Reserved Instance costs in Aqua.

Written by Alphaus Support Team

Overview

This article explains how to use Aqua for Azure cost optimisation. The following features are available for Azure:

  1. Instance Usage — Displays RI coverage rate

  2. Instance Reservation Management — RI management

  3. Recommendations — RI purchase recommendations

    • Instance size optimisation (coming soon)

    • Scheduling (coming soon)


Instance Usage

The Instance Usage page displays your overall usage cost broken down into on-demand usage and Reserved Instance coverage rate.

By monitoring your overall coverage rate, you can keep track of on-demand usage that still has room for cost reduction.

Example: If you set a KPI of maintaining 70% RI coverage for a target service, you can monitor this continuously from the Instance Usage page and consider purchasing additional RIs whenever coverage drops below 70%.


Instance Reservation Management

The Instance Reservation Management page lets you view detailed information about your purchased RIs, including:

  • Utilisation rate

  • Usage cost reduced during the target period

  • On-demand usage cost reduced during the target period

  • Savings rate during the target period

  • Azure Customer ID of the purchasing account

  • Target service

  • Instance type

  • Purchase date

  • Expiry date

  • Total savings amount

Use the metrics on this page to monitor whether purchased RIs are being applied effectively, evaluate their cost reduction impact, and inform future RI purchase decisions.


Recommendations

The Recommendations page displays RI purchase suggestions based on your current on-demand usage. Aqua calculates recommendations using the minimum on-demand usage hours over the past 30 days.

Results are displayed per Azure Customer ID, so if you manage multiple Customer IDs, you can review and compare all recommendations in one place.

Filter conditions:

Condition

Options

Subscription

Select the target subscription

Scope

Single resource or group / Subscription / Shared scope / Management group

Region

Select the target region

VM size

Select the Virtual Machine size

Optimisation target

Select the target for optimisation

Term

Select the RI term

Quantity

Specify the quantity

Apply these filters to narrow down and review the RIs available for purchase.


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