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 |
GB0504390(D0) |
申请公布日期 |
2005.04.06 |
申请号 |
GB20050004390 |
申请日期 |
2005.03.02 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
|
分类号 |
G06F3/06 |
主分类号 |
G06F3/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|