发明名称 |
Version based data protection |
摘要 |
A method, article of manufacture, and apparatus for recovering data. In some embodiments, this includes creating a version of the data set, determining a metadata window based on the created version, storing metadata based on the determined metadata window in a first storage device, and storing the version in a second storage device. In some embodiments, a metadata tag may be associated with the metadata, and in some embodiments, a version tag may be associated with the version. |
申请公布号 |
US9424139(B1) |
申请公布日期 |
2016.08.23 |
申请号 |
US201113077743 |
申请日期 |
2011.03.31 |
申请人 |
EMC Corporation |
发明人 |
Dutch Michael John;Claudatos Christopher Hercules;Rao Mandavilli Navneeth |
分类号 |
G06F7/00;G06F17/30;G06F11/14 |
主分类号 |
G06F7/00 |
代理机构 |
|
代理人 |
Chen Theodore A.;Gupta Krishnendu |
主权项 |
1. A method for protecting a data set, the method comprising:
creating a first version of the data set; determining a first metadata window based on the first version of the data set wherein the first metadata window includes a start time and a stop time associated with a session of sequential alterations of the data set; storing a first set of metadata based on the determined first metadata window in a first storage device wherein the first set of metadata contains at least undo-redo data associated with the first metadata window, and wherein storing the first set of metadata includes retaining the stored the first set of metadata after the session terminates; storing the first version in a second storage device; creating a second version of the data set; determining a second metadata window based on the second version of the data set wherein the second metadata window includes a start time and a stop time associated with a session of sequential alterations of the data set; storing a second set of metadata based on the determined second metadata window in the first storage device wherein the second set of metadata contains at least undo-redo data associated with the second metadata window, and wherein storing the second set of metadata includes retaining the stored the second set of metadata after the session terminates; and storing the second version in a third storage device. |
地址 |
Hopkinton MA US |