An Efficient SSD-based Hybrid Storage Architecture for Large-scale Search Engines

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Provided by: Suffolk Software
Topic: Hardware
Format: PDF
Large-scale search engines use Hard Disk Drives (HDD) to store the mass index data for their capacity, whose performances are limited by the relatively low I/O performance of HDD. Caching is an effective optimization, and many caching algorithms have been proposed to improve retrieval performance. Considering the high cost of memory and huge amounts of data, the limited capacity of cache in memory cannot resolve the above problem thoroughly. In this paper, the authors adopt a Solid State Disk (SSD) based storage architecture, which uses SSD as a secondary cache for memory.
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