Used with Provisioned IOPS SSD volumes only. The percentage of I/O operations per second
(IOPS) delivered of the total IOPS provisioned for an Amazon EBS volume. Provisioned IOPS SSD
volumes deliver within 10 percent of the provisioned IOPS performance 99.9 percent of the
time over a given year.
During a write, if there are no other pending I/O requests in a minute, the metric value will
be 100 percent. Also, a volume's I/O performance may become degraded temporarily due to an
action you have taken (for example, creating a snapshot of a volume during peak usage,
running the volume on a non-EBS-optimized instance, or accessing data on the volume for the
first time).
Used with Provisioned IOPS SSD volumes only. The percentage of I/O operations per second (IOPS) delivered of the total IOPS provisioned for an Amazon EBS volume. Provisioned IOPS SSD volumes deliver within 10 percent of the provisioned IOPS performance 99.9 percent of the time over a given year.
During a write, if there are no other pending I/O requests in a minute, the metric value will be 100 percent. Also, a volume's I/O performance may become degraded temporarily due to an action you have taken (for example, creating a snapshot of a volume during peak usage, running the volume on a non-EBS-optimized instance, or accessing data on the volume for the first time).
Units: Percent