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Method and apparatus for managing data caching in a distributed computer system

  • US 20030088713A1
  • Filed: 10/11/2001
  • Published: 05/08/2003
  • Est. Priority Date: 10/11/2001
  • Status: Active Grant
First Claim
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1. A method for managing a data caching service from a management terminal in a distributed computer system having a host computer system with a host memory and at least one storage device connected to the computer system by driver software, the method comprising:

  • (a) inserting an interface layer between the driver software and the storage device, the interface layer exporting a platform dependent API and controlling data passing between the driver software and the storage device;

    (b) running, in the host, management facade software that converts the interface layer API to platform-independent method calls;

    (c) running, in the host, a federated bean that generates method calls to the management facade to control the interface layer; and

    (d) controlling the federated bean to enable a data read cache by instructing the interface layer to intercept requests for data from the storage device and, if the data is in the host memory, to retrieve the data from the host memory, and to retrieve the data from the storage device if the data is not in the host memory.

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