Which of the following statements are not the features of the horizontally extended file storage function?

Which of the following statements are not the features of the horizontally extended file storage function?
A . Distributed metadata management, supporting linear expansion of 3~4000 nodes.
B . The self-developed distributed file system OceanStor DFS supports massive unstructured data storage and realizes a unified global namespace.
C . Provide object storage services, compatible with Amazon S3 interface, and compatible with OpenStack Swif interface.
D . Supports integration with FusionInsight Hadoop/Cloudera Hadoop packaged with open source Hadoop components, allowing users to easily build an enterprise-level big data analysis platform.

Answer: A