The number of I/O operations per second (IOPS) that the volume supports. For Provisioned IOPS SSD volumes, this
represents the number of IOPS that are provisioned for the volume. For General Purpose SSD volumes, this
represents the baseline performance of the volume and the rate at which the volume accumulates I/O credits for
bursting. For more information about General Purpose SSD baseline performance, I/O credits, and bursting, see Amazon EBS Volume Types in the
Amazon Elastic Compute Cloud User Guide.
Constraints: Range is 100-16,000 IOPS for gp2
volumes and 100 to 64,000IOPS for io1
volumes in most regions. Maximum io1
IOPS of 64,000 is guaranteed only on Nitro-based instances. Other instance
families guarantee performance up to 32,000 IOPS. For more information, see Amazon EBS Volume Types in the
Amazon Elastic Compute Cloud User Guide.
Condition: This parameter is required for requests to create io1
volumes; it is not used in requests
to create gp2
, st1
, sc1
, or standard
volumes.