The percentage of slots in use on the common page data set exceeds the current Critical threshold. If the common page data set becomes full, a system crash is imminent. A system programmer should immediately determine which address spaces are using the largest number of common slots, and terminate those which can be shut down at this time. If this situation occurs more frequently than once a month, a larger common page data set should be created and activated at the next IPL (with CLPA).
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