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Status Not under consideration
Categories System Management
Created by Guest
Created on May 12, 2014

Improve GOLC for 24x7 by relaxing requirement that all IMS systems are up.

GOLC requirement to have all IMS systems up (or you are forced to do a cold start) severely constrains operations from running IMS per business needs in a 24x7 environment where other scheduling or operational issues may require processors to be down, IMS systems to be down, etc

Idea priority High
  • Guest
    Reply
    |
    Sep 24, 2014

    Thank you for submitting this IMS enhancement request.


    After a comprehensive review, we regret to inform you that we have determined that at this time this request will not be a candidate for inclusion in an upcoming release because the request does not appear to be technically feasible, has a high implementation cost with a low relative value, and is not consistent with the product direction. Hence, we have rejected this request.


    We believe the request is not technically feasible with the current global online change architecture, because if two online changes were done while one or more of the IMSs were down, the restarting IMSs would discover that their active libraries match the active libraries in the OLCSTAT dataset and not detect that an online change was needed.


    We believe the request would have a high implementation cost, because it would require completely redesigning the global online change architecture to handle the case where an IMS was down during two online changes. Users would have to ensure that an IMS's active library had not been changed since the IMS was up and that the IMS's inactive library matches the active libraries of the active IMSs. Since this would be an error-prone process, many customers may not use this function, so we think the value would be low.


    The request is not consistent with the product direction of defining resources more dynamically, rather than enhancing more static resource definition functions such as online change.


    We appreciate your input to the IMS development team.