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CONTROL APPARATUS, STORAGE SYSTEM, AND MEMORY CONTROLLING METHOD

  • US 20090172679A1
  • Filed: 08/27/2008
  • Published: 07/02/2009
  • Est. Priority Date: 12/27/2007
  • Status: Active Grant
First Claim
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1. A control apparatus, coupled to a storage apparatus for storing data therein and an upper apparatus for processing the data, for controlling read-processing of the data stored in the storage apparatus in response to a request from the upper apparatus, said control apparatus comprising:

  • a cache memory which stores the data read from the storage apparatus;

    an access monitoring unit which monitors a state of access from the upper apparatus to the data stored in the storage apparatus;

    a schedule information creating unit which creates schedule information that determines contents to be stored in said cache memory based on the access state monitored by said access monitoring unit; and

    a memory controlling unit which controls record-processing of the data from the storage apparatus to said cache memory and removal-processing of the data from said cache memory based on the schedule information.

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