发明名称 |
System, Method and Computer Program Product for Generating a Consistent Point in Time Copy of Data |
摘要 |
Generating a consistent point in time copy of data in a source volume and a target volume is achieved responsively to a first data modification request by writing a first altered version of the data onto a single source volume, asynchronously transferring the first altered version from the first storage site to a target volume located at a remote second storage site, while avoiding copying the first altered version onto other volumes at the first storage site. While asynchronously transferring the first altered version de-queuing a second modification request, and responsively to the second modification request synchronously transferring the first altered version from the first storage site to the target volume. Then a second altered version of the data is written to the single source volume and a copy transferred to the target volume in like manner.
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申请公布号 |
US2009210643(A1) |
申请公布日期 |
2009.08.20 |
申请号 |
US20090430149 |
申请日期 |
2009.04.27 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
ASHOUR GAL;BOYD KENNETH WAYNE;FACTOR MICHAEL;FIENBLIT SHACHAR;GLUCK OLYMPIA;HAYARDENY AMIRAM;MALUL ELI;NURIEL IFAT;PRIVMAN-HORESH NOA;TZAFRIR DALIT;WERNER SAM CLARK |
分类号 |
G06F12/16;G06F12/00 |
主分类号 |
G06F12/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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