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Systems, devices and methods using a solid state device as a caching medium with a hashing algorithm to maintain sibling proximity
Systems, devices and methods using a solid state device as a caching medium with a hashing algorithm to maintain sibling proximity
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机译:使用固态设备作为具有哈希算法以保持同级接近度的缓存介质的系统,设备和方法
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摘要
A method for managing a caching medium for a storage system includes providing an SSD cache including a plurality of cache lines, providing a data structure including a plurality of buckets for managing the SSD cache, and providing a plurality of cache headers for managing the cache lines. Each cache line has a first predetermined size, and each bucket corresponds to a contiguous region of a physical storage capacity having a second predetermined size. Each cache header associates a cache line and a corresponding data block stored in the data storage system. The method also includes assigning two or more cache headers for cache lines associated with corresponding data blocks stored in a same contiguous region of the physical storage capacity to a same bucket, and maintaining the two or more cache headers as a first group of cache headers within the same bucket.
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