Managing cache data and metadata

Managing cache data and metadata

  • CN 102,216,899 B
  • Filed: 11/03/2009
  • Issued: 12/07/2016
  • Est. Priority Date: 11/14/2008
  • Status: Active Grant
First Claim
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1. one kind for operation include memorizer and with storage medium (706) and cache device(110) method of the computer (700) coupled, each of multiple data item is deposited by described storage mediumStorage is at corresponding address, and each in the plurality of data item is also stored in described cache device(110), at the corresponding address on, the addressable cached metadata of described computer provides described storageThe mapping between the corresponding address of each data item is stored on address on medium and described cache device,Described method includes following action:

  • (A) described cached metadata is stored in the hierarchical data structure including multiple hierarchical level;

    And(B) only the subset of the plurality of hierarchical level is loaded in described memorizer, rather than in described storageDevice is safeguarded whole described cached metadata.

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