Invention Grant
- Patent Title: Efficient free-space management of multi-target peer-to-peer remote copy (PPRC) modified sectors bitmap in bind segments
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Application No.: US15333791Application Date: 2016-10-25
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Publication No.: US09785349B2Publication Date: 2017-10-10
- Inventor: Michael T. Benhase , Lokesh M. Gupta , Warren K. Stanley
- 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: G06F3/06
- IPC: G06F3/06

Abstract:
For efficient free-space management of multi-target peer-to-peer remote copy (PPRC) modified sectors bitmap in bind segments, maintaining a list of bind segments having a free slots for each storage volume. Each one of the bind segments includes a bitmap of the free slots. The bind segments are used to store a plurality of PPRC modified sectors bitmaps as needed, where all of the bind segments have a header and a plurality of free slots to store the plurality of PPRC modified sectors bitmaps.
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