| 发明名称 |
Extent commands in replication |
| 摘要 |
A method, system, and computer program product for ordering a plurality of data IO captured at a primary site to be applied at a secondary site, comprising removing the one or more extent level portions from the captured data IO, determining if the one or more extent level portions are time sequenced to overwrite a portion of data of the data IO, based on a determination that the portion data is to be overwritten, removing the overwritten portion of data from the plurality of the data IO and ordering the one or more extent level portions to be applied at the secondary site before the captured data IO. |
| 申请公布号 |
US8977826(B1) |
申请公布日期 |
2015.03.10 |
| 申请号 |
US201113338788 |
申请日期 |
2011.12.28 |
| 申请人 |
EMC Corporation |
发明人 |
Meiri David;Arnon Dan;Yoder Benjamin W.;Halstead Mark J.;Natanzon Assaf |
| 分类号 |
G06F12/00;G06F13/00;G06F13/28;G06F11/20;G06F3/06;G06F11/14 |
主分类号 |
G06F12/00 |
| 代理机构 |
|
代理人 |
Gupta Krishnendu;D'Angelo Joseph |
| 主权项 |
1. A method of ordering data IO captured at a primary site to be applied at a secondary site, comprising:
examining the captured data IO to be applied to the secondary site at the first site for one or more extent portions, wherein the one or more extent portions includes data associated with the execution of an extent level command; removing the one or more extent portions from the captured data IO; determining if the one or more extent portions are time sequenced to overwrite a portion of the remaining captured data IO; based on a determination that the portion is to be overwritten, removing the overwritten portion from the remaining captured data IO; and ordering the one or more extent portions to be applied at the secondary site before the remaining captured data IO. |
| 地址 |
Hopkinton MA US |
