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Methods and systems for distributed cache tag management

  • US 7,673,100 B1
  • Filed: 07/10/2006
  • Issued: 03/02/2010
  • Est. Priority Date: 07/10/2006
  • Status: Expired due to Fees
First Claim
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1. A method for locating cached data corresponding to data in persistent memory within a data storage facility, comprising:

  • receiving a request for data in persistent memory;

    applying a function to a persistent memory address of the requested data to determine an address of one of a plurality of cache tag controllers, each of which controls nonduplicative cache tags; and

    looking up, at the addressed cache tag controller, a cache memory address for data corresponding to the requested data, wherein at least some of the cache tag controllers contain cache tags for less than all of the cache memory.

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