fileSystemTypeVersion

Sets the version for the Amazon FSx for Lustre file system that you're creating from a backup. Valid values are 2.10, 2.12, and 2.15.

You don't need to specify FileSystemTypeVersion because it will be applied using the backup's FileSystemTypeVersion setting. If you choose to specify FileSystemTypeVersion when creating from backup, the value must match the backup's FileSystemTypeVersion setting.