Invention Grant
US07685164B2 Low overhead methods and apparatus for shared access storage devices
失效
用于共享存取存储设备的低开销方法和装置
- Patent Title: Low overhead methods and apparatus for shared access storage devices
- Patent Title (中): 用于共享存取存储设备的低开销方法和装置
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Application No.: US11736489Application Date: 2007-04-17
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Publication No.: US07685164B2Publication Date: 2010-03-23
- Inventor: Christopher J. Stakutis , Kevin M. Stearns
- Applicant: Christopher J. Stakutis , Kevin M. Stearns
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Konrad Raynes and Victor LLP
- Agent Rabindranth Dutta
- Main IPC: G06F17/00
- IPC: G06F17/00

Abstract:
Provided are implementations for improved access to information stored on a storage device. A plurality of first nodes and a second node are coupled to one another over a communications pathway, the second node being coupled to the storage device for determining meta data including block address maps to file data in the storage device, and the first nodes being configured for accessing file data from the storage device using said meta data, wherein at least one first node caches data including meta data for a file accessed by said first node. A file application on said first node is configured to get requested file data by accessing said cached data for the file. A file notification system sends a file change notification to said first node indicating changes affecting the cached data, wherein the file application on the first node inspects the change notification to determine whether to get the requested file data directly using said cached data, whereby file accesses may be effected for an extended time with data locally cached at first nodes of the system.
Public/Granted literature
- US20070208756A1 LOW OVERHEAD METHODS AND APPARATUS FOR SHARED ACCESS STORAGE DEVICES Public/Granted day:2007-09-06
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