Invention Grant
- Patent Title: Mirroring multiple writeable storage arrays
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Application No.: US14874953Application Date: 2015-10-05
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Publication No.: US09766826B2Publication Date: 2017-09-19
- Inventor: Narendren Rajasingam
- 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: Griffiths & Seaton PLLC
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F3/06 ; G06F11/20 ; G06F12/0815 ; G06F12/0855

Abstract:
Systems, methods, and computer program products for mirroring dual writeable storage arrays are provided. Various embodiments provide configurations including two or more mirrored storage arrays that are each capable of being written to by different hosts. When commands to write data to corresponding mirrored data blocks within the respective storage arrays are received from different hosts at substantially the same time, write priority for writing data to the mirrored data blocks is given to one of the storage arrays based on a predetermined criterion or multiple predetermined criteria.
Public/Granted literature
- US20160026570A1 MIRRORING MULTIPLE WRITEABLE STORAGE ARRAYS Public/Granted day:2016-01-28
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