发明名称 |
Maintaining and using information on updates to a data group after a logical copy is made of the data group |
摘要 |
Provided are a method, system and program for maintaining and using information on updates to a data group after a logical copy is made of the data group. A first logical copy of a data group in a storage at a first point-in-time is established. The first logical copy maintains data to reconstruct the data group as of the first point-in time after the data group has been updated following the first-point-in time. Indication is made of regions of the data group updated at the storage after establishing the first logical copy. A second logical copy of the data group in the storage at a second point-in-time is established. The second logical copy maintains data to reconstruct the data group as of the second point-in time after the data group has been updated following the second point-in time. The indicated regions of the data group updated between the first and second points-in-time are saved in a change list.
|
申请公布号 |
US2007022319(A1) |
申请公布日期 |
2007.01.25 |
申请号 |
US20050184358 |
申请日期 |
2005.07.19 |
申请人 |
HASELTON WILLIAM R;STAKUTIS CHRISTOPHER J;STEARNS KEVIN M |
发明人 |
HASELTON WILLIAM R.;STAKUTIS CHRISTOPHER J.;STEARNS KEVIN M. |
分类号 |
G06F11/00 |
主分类号 |
G06F11/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|