iops
(USER_PROVISIONED mode only) Specifies the number of Metadata IOPS to provision for your file system.
For SSD file systems, valid values are
1500,3000,6000,12000, and multiples of12000up to a maximum of192000.For Intelligent-Tiering file systems, valid values are
6000and12000.
The value you provide must be greater than or equal to the current number of Metadata IOPS provisioned for the file system.