Hash checking pointers across multiple job steps

PCP provides a method for hash checking the pointers between related databases that are processed in separate job steps.

These job steps can be in the same or different jobs; if they are in different jobs, you must halt update activity to achieve valid results.

Note

The multiple-step method is not as efficient as validating the databases in one job step since it requires the overhead of reading and writing pointer data to an external data set.

The multiple-step method supports the BMC recommended method for managing index databases. If you have SECONDARY INDEX UTILITY, you can rebuild a lost or damaged primary or secondary index using only the primary database as input. Therefore, it is unnecessary to maintain image copies of indexes. Using the multiple-step pointer checking method, you can set up a job step to image copy and capture pointer data from only the primary database(s), followed by a job step to perform a stand-alone hash check of the indexes.

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