发明名称 |
Storage system with cascaded copy targeting and enhanced integrity |
摘要 |
A storage controller includes an interface to host computer apparatus and an interface to a plurality of controlled storage apparatus. The storage controller comprises a host write component operable to send a request to write a data object to a source data image at one of said plurality of controlled storage apparatus; a copy component operable in response to a metadata state to control copying of said data object to a target data image in a delimited sequence of data images in a cascade at said plurality of controlled storage apparatus and a fill-in component operable in response to detection of an offline condition of a disk containing said target data image to control substitution of a fill-in disk in place of said disk containing said target data image. |
申请公布号 |
US7509523(B2) |
申请公布日期 |
2009.03.24 |
申请号 |
US20060339094 |
申请日期 |
2006.01.24 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
AGOMBAR JOHN PAUL;BEEKEN CHRISTOPHER BARRY EDGAR;FUENTE CARLOS FRANCISCO;WALSH SIMON |
分类号 |
G06F11/00;G06F3/06 |
主分类号 |
G06F11/00 |
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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