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A Design for High-Performance Flash Disks

Andrew Birrell, Michael Isard, Chuck Thacker, and Ted Wobber


Most commodity flash disks exhibit very poor performance when presented with moderate-sized writes that are not sequentially ordered. We argue that performance can be drastically improved through the addition of sufficient RAM to hold data structures describing a fine-grain mapping between disk logical blocks and physical flash addresses. We present a design that accomplishes this.


Publication typeArticle
Published inOperating Systems Review
InstitutionMicrosoft Research
PublisherAssociation for Computing Machinery, Inc.
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