You can use IRRUT200 to monitor the capacity of the RACF® database. Run IRRUT200 periodically against each data set in the database in order to determine if the data set is about to run out of space. If you have already run out of space (profile updates have failed due to an "insufficient space" condition), you can use IRRUT200 to determine if you need to enlarge the data set, or to rebuild it to undo any fragmentation that has occurred.

To monitor the database or diagnose an "insufficient space" condition, use the MAP ALL function. In addition to detecting BAM allocation inconsistencies, the MAP ALL function reports on the amount of space in use in the data set and produces an encoded map of the BAM blocks that you can use to determine if significant fragmentation has occurred. Either case can result in a profile create or update failing because no contiguous slot large enough to contain the new or changed profile is available. Once you determine that a data set is in danger of running out of space, or an "insufficient space" condition has been reached, use IRRUT400 to copy the data set to a new one. The new data set can be larger if you require more space, or it can be the same size if fragmentation is the only problem, because IRRUT400 rebuilds the data set while copying it, undoing any fragmentation that has occurred.