发明授权
- 专利标题: Validating stored copies of data images to load into memory
- 专利标题(中): 验证存储的数据映像副本加载到内存中
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申请号: US13444378申请日: 2012-04-11
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公开(公告)号: US08521707B2公开(公告)日: 2013-08-27
- 发明人: Said Abdullah Ahmad , Michael Thomas Benhase , David Frank Mannenbach , Tim Stephen Vande Zande
- 申请人: Said Abdullah Ahmad , Michael Thomas Benhase , David Frank Mannenbach , Tim Stephen Vande Zande
- 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: Konrad Raynes Davda & Victor LLP
- 代理商 David W. Victor
- 主分类号: G06F7/00
- IPC分类号: G06F7/00 ; G06F17/00
摘要:
Provided are a method, system, and article of manufacture for validating stored copies of data images to load into memory. An image of data is maintained in a memory, wherein the image in the memory includes a generation number. The image in the memory is written to at least two copies of the image to storage locations in response to a first event, wherein the generation number for the image in the memory is stored in the storage locations having the copies of the image. A check generation number is stored in a storage location. The image is loaded from at least one of the copies of the image in one of the storage locations to the memory in response to a second event The generation number for the image loaded into the memory. The check generation number is incremented in response to the second event. The generation numbers for the copies of the image in the storage locations and the check generation number are used to validate the copies of the image.