ANTMAIN is one of the tasks IBM automatically assigns to SYSTEM, iirc. So, if this is (still) true, the answer is YES. - Ted MacNEIL eamacn...@yahoo.ca Twitter: @TedMacNEIL
-----Original Message----- From: "Gibney, Dave" <gib...@wsu.edu> Sender: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> Date: Mon, 13 May 2013 18:49:52 To: <IBM-MAIN@LISTSERV.UA.EDU> Reply-To: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> Subject: Re: ANTMAIN takes a lot of CPU Since no one has asked yet, I will. Is SYSTEM the appropriate level of priority for this task? I don't have any flashcopy here, so I have no experience or even knowledge of all that ANTMAIN does. Dave Gibney Information Technology Services Washington State University > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] > On Behalf Of Graham Harris > Sent: Monday, May 13, 2013 11:38 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: ANTMAIN takes a lot of CPU > > 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 <jwgli...@gmail.com> 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 lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
