Management method of cache of storage area network
A storage area network and management method technology, applied in the field of cache memory management, can solve the problems of reducing VSS access efficiency and the like
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[0021] The technical solutions of the present invention will be further described in more detail in conjunction with the accompanying drawings and specific embodiments.
[0022] Please refer to figure 2 As shown, it is a schematic diagram of the operation flow of the present invention. The present invention comprises the following steps:
[0023] First, stop the write-back policy of the cache (step S210). Query the data writing rate of the block device (step S220). The data is transmitted from the SAN to the cache of the shadow copy server, and the cache write rate of the cache is obtained (step S230 ). Adjust the data write cache write rate according to the data write rate (step S240). In the present invention, the data write rate is set to be greater than the cache write rate.
[0024] Next, the capacity of the cache is detected in real time to determine whether all the data in the cache has been written into the block device (step S250). When the data in the cache ha...
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