Posted by: Pdfprep
Post Date: November 10, 2020
Compared with traditional RAID algorithms, the erasure code redundancy technology used by Huawei OceanStor 9000 provides higher reliability and more flexible redundancy policies.
Which of the following statements about the erasure code N+M principle is false?
A . Data to be written is divided into N data blocks of the same size.
B . The erasure code algorithm calculates M parity blocks for every N consecutive data blocks. (The value of M is smaller than that of
C . )
D . N+M data blocks are concurrently stored to different disks.
E . In erasure code storage mode, the storage system tolerates a concurrent failure of N disks at most.
Answer: D
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