I understand the root cause of this issue (which is essentially repetitive parallel execution of large numbers of SRBs within ANTMAIN when flashcopy eligibility/pairing checking is applied against very large numbers of volumes) is "recognised", and is intended to be addressed in a future version of z/OS. The way to avoid ANTMAIN CPU spikes for the time being, appears to be to make the eligible volume target list as small as possible, or turn off the flashcopy 'trigger' in whatever software you are using (assuming you don't actually need flashcopy of course!)
On 13 May 2013 16:37, John Gilmore <[email protected]> wrote: > The word "excessive" is sometimes, I think, legitimate shorthand for > "unexpectedly large in comparison with what has been the case". > > It is important is to remember that "excess" is symptomatic. It > identifies something unfortunate that has happened. The question who > is be blamed for that thing, when it is meaningful at all, is a > different one that may, often does, have an answer that is not the > obvious one. > > John Gilmore, Ashland, MA 01721 - USA > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
