Recovery from secondary sources

For some situations, you might want to recover a database by using only secondary image copies and log data sets.

This situation might be one where copies of your input data sets are shipped to a remote site where the databases can be reconstructed in the event of a disaster at the production site. You might also use this option if an unrecoverable I/O error occurs on the primary data set.

You can use secondary sources for the default processing mode at a location by using the SOURCE keyword with the SEC parameter in the FRXDRFxx member or in the SYSIN DD statements. If you choose the secondary source option, none of the primary image copy or log data sets are used.

In the event that you issue this form of recovery without the availability of secondary copies of the primary data sets, an FRD6022A message is issued to describe the error.