Which of the following description about OceanStor 9000 global cache is incorrect?

Which of the following description about OceanStor 9000 global cache is incorrect?
A . The memory space on all storage servers logically forms a unified memory resource pool.
B . Data that is cached on any of the storage servers, can be hit in the global cache when any subsequent storage server receives access to the data request.
C . All the user data in the entire cluster system will only cache a copy.
D . The global cache will cache data and its calibration data.

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Answer: D