Huawei Oceanstor 9000 Provides a Single File System to the Outside

Huawei Oceanstor 9000 provides a single file system to the outside through the unified file system namespace management. Which of the following description is correct? (Multiple choice.)

A) The namespace is automatically created when HUAWEI OceanStor 9000 is started with the same name as the system namespace.
B) Namespaces as the root directory of the entire system can not be shared and visited, only if ask the subdirectories below it can be shared and visited.
C) A unified namespace provide users with a unified storage resource pool to achieve the centralized management of storage space and distribution.
D) Each file share directory is a subdirectory of the namespace.