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Our shop currently has MAXVIRT set to 8192. The reason I know what MAXVIRT is (now) is due to (COBOL) stored procedure performance, specifically with the DB2 package SYSSTAT. Redbook SG247083 (DB2 for z/OS Stored Procedures: Through the CALL and Beyond) recommends 32768 to handle lots of load module caching for stored procedures. The MVS folks said there appears to be no problem now. Is it still prudent though to increase this value? How do I know if there's a problem, or how can I 'prove' that increasing the value would benefit the system? Curious to hear your take on it. Thanks.