7.Verify that pair status of all secondary data volumes (which were originally primary data volumes) changes from Pending Duplex to Duplex. If the pair status is changed to Duplex, initial copy operations are finished and consistency is maintained.
The above procedure enables copying of data from the secondary site to the primary site. Data in the secondary site will be reflected on the primary site.
For detailed information about how to use Business Continuity Manager, please refer to Business Continuity Manager User's Guide.
For detailed information about status of data volumes, refer to section Pair Status.
Resuming Normal Operations at the Primary Site
Once the URz volume pairs have been established in the reverse direction, you are ready to resume normal operations at the primary site. The following procedure explains how to resume normal operations at the primary site by using Business Continuity Manager. Remember that the URz terminology is now reversed: the original primary data volumes are now secondary data volumes, and the original secondary data volumes are now primary data volumes.
1.At the primary and secondary sites, make sure that all URz components are fully operational and are free from failures.
2.Make sure that pair status of primary and secondary data volumes in all URz pairs is "Duplex". This indicates that the URz initial copy operations are complete and consistency is maintained.
3.Stop the applications at the secondary site.
4.Issue a request for splitting pairs to master journal groups (which were originally restore journal groups); please use the Business Continuity Manager to execute the YKSUSPND FLUSH SVOL PERMIT option on the master journal group (which was originally the restore journal group); YKSUSPND is a command for splitting pairs. If an error occurs when splitting pairs, please remove the error cause and go back to step 1 after resuming your business task at the secondary site.
5.If no error occurs in step 4, wait until suspension finishes. After suspension finishes, check whether there is a secondary data volume (which is originally a primary data volume) whose pair status is other than Suspend (equivalent to SUSPOP with Business Continuity Manager). If such a pair exists, please remove the error cause and go back to step 1 after resuming your business task at the secondary site.
Chapter 10 Usage Scenarios |
