Which of the following description about the Huawei Oceanstor 9000 to achieve N + M redundancy technology is wrong?
A.
Huawei Oceanstor 9000 can configure different data protection levels for different directories / files.
B.
Data written to Huawei OceanStor 9000 system will be divided according to the size of 4G chunk.
C.
Every N chunk, according to Erasure code algorithm to calculate M chunk calibration fast.
D.
The utilization of protected data space is aboutN / (N + M), the reliability of the data is determined by the value of M, the greater the M is, the higher the reliability.
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