You can use RACF® commands to accomplish all the synchronization steps (some might require the SPECIAL attribute). Zap and similar programs are unnecessary, and you should not use them. Similarly, use of the BLKUPD command should not be necessary. You should only use BLKUPD in the unlikely event that other mechanisms fail.

You should test all procedures for switching and creating or restoring copies of the RACF database before using RACF in production.