"Vernooy, C.P. - SPLXM" <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED] t>... > Hello, > I reorganized my VIO Storage Groups, deleted the old SGs, added 2 new > SGs and changed the ACS SG routine to route VIO datasets to the new VIO > SGs. > The question is: what happens when I activate the new configuration. Is > it possible that the new ACS routines are activated a few milliseconds > before the new SG definitions or visa versa? If so, the ACS routine can > route datasets to the old SGs, which are already invalidated, or route > them to the new SGs, which have not been activated yet. Or is this fully > synchronized and safe to do? > > Thanks,
> Kees. I did not get any answers to the above question but discovered something interesting this morning with regard to my manipulations of the VIO SGs. Btw. the title should read SMS, not ISMF. One system was IPLd for the first time since the new VIO SGs were activated and the old ones removed. At least one task that was running since the last IPL of the system, ran into a JCL error when brought down, because its last steps used VIO datasets and referred the old, removed VIO SGs. Apparantly the SG name is already deciced when the job/stc starts. The conclusion is that it is dangerous to remove (VIO) SGs and possibly other SMS constructs during the life of the IPL of the systems in the SMS configuration. Long running task may have been assigned those constructs and will then request them weeks or months later when the relevant steps execute. Hope this info is useful for some of you. Kees. ********************************************************************** For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 ********************************************************************** ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
