ICFRU System Flow

You can control the execution of ICFRU programs through the specification of execution parameters (the same parameters for both CRURRSV and CRURRAP) and by providing the appropriate SMF dump data sets and EXPORT data set. Final recovery through IDCAMS IMPORT can be executed when you are satisfied with the results of ICFRU.

To use the ICFRU, you will need:

The name of the catalog to be recovered
Recovery start date and time - the date and time at which the backup to be used for recovery was made
Recovery stop date and time - the date and time that corresponds to the closing of the catalog (or the time after which no updates were otherwise possible)
An SMF gap time - the (approximate) interval just smaller than the minimum time used to fill (or switch) an SMF recording data set
A multi-system clock difference - the (approximate) maximum difference between the TOD clocks of any two systems sharing the catalog
All SMF dump data sets spanning the recovery period
A sort utility and appropriate sort control
The IDCAMS EXPORT data set to be used as the basis for recovery

The following figure presents an overall view of the ICFRU.

Figure 1. Integrated Catalog Forward Recovery Utility Control and Data Flow da6c1018 da6c1018