Prevention of overlay of production data by point in time copy operations in a host based asynchronous mirroring environment
US8751762B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2011 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Feb 5, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/16
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A primary storage controller is configured to communicate with a secondary storage controller via a system data mover. In response to receiving a command to perform a point in time copy of a source volume of the primary storage controller to a target volume of the primary storage controller, a determination is made as to whether the target volume of the primary storage controller is a source for an asynchronous data replication operation, initiated by the system data mover, between the primary storage controller and the secondary storage controller. In response to determining that the target volume of the primary storage controller is the source for the asynchronous data replication operation, initiated by the system data mover, the point in time copy of the source volume of the primary storage controller to the target volume of the primary storage controller is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.