System-wide points of consistency

In any disaster recovery scenario, system-wide points of consistency are necessary for maintaining data integrity and preventing a loss of data. A direct relationship exists between the frequency at which you make and send copies to the recovery site and the amount of data that you can potentially lose.

The following figure is an overview of the process of preparing to start Db2 at a recovery site.

Figure 1. Preparing for disaster recovery. The information that you need to recover is contained in the copies of data (including the Db2 catalog and directory) and the archive log data sets.
Begin figure description. This figure is a time line that depicts actions that you perform before and after a disaster to recover DB2. End figure description.