storageCapacityQuotaGib

Sets the maximum storage size in gibibytes (GiB) for the volume. You can specify a quota that is larger than the storage on the parent volume. A volume quota limits the amount of storage that the volume can consume to the configured amount, but does not guarantee the space will be available on the parent volume. To guarantee quota space, you must also set StorageCapacityReservationGiB. To not specify a storage capacity quota, set this to -1.

For more information, see Volume properties in the Amazon FSx for OpenZFS User Guide.