![]() ![]() The graph below shows an example of the VolumeQueueLength over 24 hours for an EBS volume. The graph below shows an EBS volume that has maxed out. For a Provisioned IOPS volume, the rule of thumb is to keep the VolumeQueueLength at 1 per 100 IOPS. Let’s see what happens when an application is pushing too many IOPS to an EBS volume. The one metric that matters is VolumeQueueLength from AWS CloudWatch. The one-metric test for optimal EBS Provisioned IOPS performance While these extensive conditions are normal for a networked storage service, they’re easy to overlook if you’re not aware that they’re necessary to optimize performance.
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