In a message dated 12/17/2007 1:43:38 A.M. Central Standard Time, [EMAIL PROTECTED] writes: >Also I wanted to be able to be optimal in terms of reading and writing multiple blocks at a time to reduce the EXCP count as much as possible. EXCP is the only think that gives you this level of control. You can reduce the EXCP count to zero, if you want to go that far, by using STARTIO. However, there is no automatic support for data set extend with STARTIO. The mechanism in SMF that counts EXCPs attempts really to count blocks transferred rather than invocations of EXCP. It all depends on what is in your DCB at the instant you do the EXCP. You can probably fool the counting algorithm by manipulating the block size before and after the EXCP. Bill Fairchild Franklin, TN
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