Invention Grant
- Patent Title: Exchanging locations of an out of synchronization indicator and a change recording indicator via pointers
- Patent Title (中): 通过指针交换不同步指示灯和更改记录指示灯的位置
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Application No.: US13654041Application Date: 2012-10-17
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Publication No.: US09251230B2Publication Date: 2016-02-02
- Inventor: Theresa M. Brown , Theodore T. Harris, Jr. , Mark L. Lipets , Carol S. Mellgren
- Applicant: International Business Machines Corporation
- 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 Davda & Victor LLP
- Agent Rabindranath Dutta
- Main IPC: G06F17/30
- IPC: G06F17/30 ; G06F11/20 ; G06F11/14
Abstract:
A first data structure stores indications of storage locations that need to be copied for forming a consistency group. A second data structure stores indications of new host writes, subsequent to starting a point in time copy operation to form the consistency group. Locations of the first data structure and the second data structure are exchanged, subsequent to the consistency group being formed successfully.
Public/Granted literature
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