Relationships between redundancy ratio, strip size, and read/write performance of OceanStor 9000

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Relationships between redundancy ratio, strip size, and read/write performance of OceanStor 9000: The redundancy ratio and strip size of OceanStor 9000 directly impact on the storage space utilization. The strip size determines the data slice size. The data slice size is set based on the average size of files in actual services to prevent improper data slices due to a too large strip size, avoiding space waste. Particularly for small files, small strips of 16 KB are needed. The redundancy ratio determines the number of verification data copies and directly impacts on the storage space utilization.
For the N+M redundancy ratio in the Erasure Code algorithm, M can be 1, 2, 3, or 4. A larger value of M indicates poorer algorithm performance and more complex computing. N can be 3 to 16. A larger value of N indicates higher algorithm performance and more disks concurrently read/written.

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