Which of the following statements about the InfoStamper feature of Huawei OceanStor 9000 is false?
A . Huawei OceanStor 9000 stores metadata in mirrors for redundancy, and uses the COW technique to ensure data reliability.
B . The InfoStamper feature provides file-level snapshots.
C . The InfoStamper feature employs the ROW technique.
D . The advantage of ROW lies in the minor impact on system performance.
Answer: B