About Auto Right-Sizing
The Auto Right-Sizing feature can ensure that appropriate sizing is applied to VPCs/VNets on AWS and Azure Transit and Spoke gateway instances. This can reduce CSP costs, improve performance and mitigate packet loss.
The Aviatrix Auto Right-Sizing feature provides you with gateway sizing recommendations, based on Aviatrix standard gateway sizing.
| See the Aviatrix Gateway Sizing Best Practices Guide for information to assist you with pre-deployment planning of your gateway sizing. |
You can implement the resizing recommendations right away, or obtain the necessary approval from your management and then resize. Remember that not all gateways need resizing; you can ignore or dismiss any recommended auto right-sizing recommendations.
| You should perform auto right-sizing during gateway maintenance periods. Any user can act on the provided recommendations. |
The network will reach 'steady state' over time, as you implement the provided recommendations.
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If you configured the Gateway Scaling feature prior to CoPilot 4.15, the Policies, Recommendations, and Events tabs for that feature will show 'Legacy'. You can continue using the Gateway Scaling feature if you need to schedule gateway resizing, or want to add new gateway instances when scaling up. Aviatrix recommends migrating to the Auto Right-Sizing feature for your gateway scaling needs. At this time Auto Right-Sizing only suggests modifying existing gateway sizes, not adding or removing gateway instances. Scheduled scaling is not yet available as part of Auto Right-Sizing. |
The Auto Right-Sizing tab displays gateway instances for which auto right-sizing is recommended. This list gets updated every monitoring period. Recommendations that have been implemented are removed from the tab during this update. Recommendations advising against changing the gateway instance size are not included. Each gateway instance is limited to one recommendation per monitoring period.
| Configure the monitoring period and any VPC/VNets to exclude from monitoring in Auto Right-Sizing Settings before performing resize actions. |
If there are no active recommendations, a message to this effect is displayed on the tab, along with when the next monitoring period scan will begin.
Considerations Before Auto Right-Sizing
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At any time, you can manually resize your gateways from Cloud Fabric > Gateways.
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Do not resize gateways in the same VPC/VNet to be different sizes; keep an eye on if recommendations for HA gateway instances suggest vastly different sizes. If that occurs, you should check the health of your gateway and if routing is working correctly.
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Do not downsize any HPE gateway instances to small.
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Do not downsize any Distributed Cloud Firewall gateway instances to unsupported sizes.
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Do not resize if your CSP is out of resources in the suggested region.
Viewing Auto Right-Sizing Recommendation Details
Clicking a gateway instance on the Auto Right-Sizing tab shows its details.
From here you can:
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View the network and system metrics for that gateway instance.
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View gateway instance performance.
Click View Performance to go to the Monitor > Performance tab. The following items will be pre-selected: gateway instances; observation period from the recommendation details; and the network/system metrics from the recommendation details. You can modify any of these pre-selections.
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Dismiss the recommendation.
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Ignore recommendations from the selected VPC/VNet.
Events Tab
The Events tab shows the recommendations you have implemented and their status (In Progress, Success, Error).
