×

Storage device and information processing system

  • US 7,340,580 B2
  • Filed: 08/09/2005
  • Issued: 03/04/2008
  • Est. Priority Date: 12/25/2003
  • Status: Expired due to Fees
First Claim
Patent Images

1. A storage device, comprising:

  • a data-readable/writable storage medium;

    a data-readable/writable nonvolatile memory; and

    a controller configured to manage one of respective physical storage areas of the storage medium and the nonvolatile memory as a logical storage area and, in response to an access request from an external source, the controller executes access to either one or both of the storage medium and the nonvolatile memory,wherein when a write request for data from an external source is present, the controller performs computation of time necessary for a write of the data to the storage medium, and executes the write to the nonvolatile memory if the computation result is greater than or equal to a predetermined value.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×