Cache-based storage system architecture
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United States of America Patent
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Oct 1, 2013
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app pub date -
Feb 11, 2009
filing date -
Feb 12, 2008
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Abstract
A cache-based storage architecture has primary and secondary storage subsystems that are controlled by first and second data layout engines to provide a high-performance storage system. The primary storage subsystem illustratively comprises non-volatile electronic storage media configured as a cache, while the secondary storage subsystem comprises magnetic storage media configured as a disk array. The data layout engines illustratively implement data layout techniques that improve read and write performance to the primary and secondary storage subsystems. To that end, the data layout engines cooperate to optimize the use of the non-volatile cache as a primary storage stage that efficiently serves random data access operations prior to substantially transposing them into sequential data access operations for permanent (or archival) storage on the disk array.
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