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Cache memory arrangement and methods for use in a cache memory system

  • US 20030200394A1
  • Filed: 04/03/2003
  • Published: 10/23/2003
  • Est. Priority Date: 04/19/2002
  • Status: Abandoned Application
First Claim
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1. A cache memory arrangement for use in a data storage system, the arrangement comprising:

  • first cache means having non-volatile memory means for storing a first copy of data; and

    second cache means having non-volatile memory means for storing a second copy of said data, and additional non-volatile memory means associated with at least one of the first cache means and the second cache means, the additional non-volatile memory means being arranged to hold a list of ongoing cache data storage transactions for which data storage in the non-volatile memory means of both the first and second cache means have not been completed, the list being arranged to be cleared of cache data storage transactions for which data storage in the non-volatile memory means of both the first and second cache means have been completed.

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