发明名称 |
Apparatus, system and method for reliably updating a data group in a read-before-write data replication environment using a comparison file |
摘要 |
An apparatus, system, and method are disclosed for reliably updating a data group in a data replication environment. The apparatus, system, and method reliably update the data group by receiving an updated data group sent from a first storage medium to a second storage medium, comparing the updated data group with a previous data group previously existing on the second storage medium and writing the updated data group to the second storage medium. The read-before-write and differencing method disclosed maintain reliability by storing multiple copies of changes made to the second storage medium during and after the write process.
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申请公布号 |
US7484051(B2) |
申请公布日期 |
2009.01.27 |
申请号 |
US20050093392 |
申请日期 |
2005.03.30 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BUTTERWORTH HENRY ESMOND;DAY, III KENNETH FAIRCLOUGH;DOATMAS PHILIP MATTHEW;WOLFGANG JOHN JAY;ZAUTNER VITALY;ZLOTNICK AVIAD |
分类号 |
G06F12/00;G06F7/00;G06F13/00;G06F13/28;G06F15/16;G06F15/167;G06F17/30 |
主分类号 |
G06F12/00 |
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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