Detecting AWS EBS performance issues with Datadog

The article reveals that EBS volume performance isn't solely determined by volume type (like io2 Block Express) but heavily influenced by burst balance – the ratio of sustained IOPS to burst IOPS. Many users aren't achieving expected performance because they're not consistently utilizing their burst credits, leading to lower sustained IOPS than advertised. Understanding and monitoring burst balance is crucial for optimizing EBS performance and cost, potentially allowing for downgrading to less expensive volume types without sacrificing performance.