Caching data between a database server and a storage system
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United States of America Patent
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Aug 2, 2016
Grant Date -
Jan 1, 2015
app pub date -
Sep 16, 2014
filing date -
Sep 14, 2009
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status (Latency Note)
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Abstract
Techniques are provided for using an intermediate cache between the shared cache of an application and the non-volatile storage of a storage system. The application may be any type of application that uses a storage system to persistently store data. The intermediate cache may be local to the machine upon which the application is executing, or may be implemented within the storage system. In one embodiment where the application is a database server, the database system includes both a DB server-side intermediate cache, and a storage-side intermediate cache. The caching policies used to populate the intermediate cache are intelligent, taking into account factors that may include which object an item belongs to, the item type of the item, a characteristic of the item, or the type of operation in which the item is involved.
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