hard20 pts · first answer countscloud-storageperformance

Disk latency spike during nightly batch

A database on a 200 GiB gp2 EBS volume is fine for the first hour of a nightly batch, then latency jumps. The BurstBalance metric drops to 0. What is happening and what should you do?

A.The instance runs in a different AZ from the volume it usesB.An EBS snapshot is running and locking the volume for writesC.Burst credits ran out, leaving a 600 IOPS baseline; move to gp3D.EBS volumes are throttled by AWS during nightly maintenance

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