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This paper presents our replacement algorithm named RED for storage caches. RED is exclusive. It can eliminate the duplications between a storage cache and its client cache. RED is high performance. A new criterion Resident Distance is proposed for making an efficient replacement decision instead of Recency and Frequency. Moreover, RED is non-intrusive to a storage client. It does not need to change...
Multi-level cache hierarchies are very common in today's networked storage environments. Dedicated data servers or file servers are simultaneously accessed by multi-applications of multi-clients. Workload shift results in cache pollution and degrade of hit ratio. Widely used cache policies work well on the case when a single level cache separates the data provider and data consumer, but poorly on...
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