发明授权
- 专利标题： Point-in-time copying of virtual storage and point-in-time dumping
- 专利标题（中）： 虚拟存储的时间点复制和时间点转储
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申请号： US13164983申请日： 2011-06-21
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公开(公告)号： US08892838B2公开(公告)日： 2014-11-18
- 发明人: Mark S. Farrell , William J. Rooney , Elpida Tzortzatos
- 申请人： Mark S. Farrell , William J. Rooney , Elpida Tzortzatos
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 代理机构： Cantor Colburn LLP
- 代理商 William A. Kinnaman, Jr.
- 主分类号： G06F13/00
- IPC分类号： G06F13/00 ; G06F11/07 ; G06F12/10 ; G06F12/14
摘要：
A method includes copying a first virtual storage by making, a point-in-time copy of a first page content stored in a first structure by creating a second page content in a second structure, the second page content pointing to actual data pointed to by the first page content, storing the second page content in the second data structure, marking the first page content in the first structure with a bit, copying the virtual page in the event the first page content in the first structure is marked with the bit, storing the copied virtual page in a second virtual storage, altering the second page content to point to the stored virtual page, and using the second virtual storage to perform the core dump process, wherein the second virtual storage is referenced via the second page content stored in the real storage.
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