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Status Functionality already exists
Workspace IBM i
Categories Hardware
Created by Guest
Created on Apr 12, 2023

allow QSYS2.CHANGE_IOP to reset all IOPs

IBM introduced SQL function QSYS2.CHANGE_IOP to reset ISCSI IOPs only.

We would like to have support to use QSYS2.CHANGE_IOP function to IPL other IOPs (like virtual fibre channel IOPs - CMBxx) as well.

Idea priority Low
  • Guest
    May 1, 2023

    This IDEA is very similar to what I proposed

    I am happy if the VRYCFG option for *TAPMLB devices will be OK, please make sure some mention of what is being reset is added to the *HELP screen

  • Guest
    Apr 28, 2023

    If VRYCFG with RESET does the same as IPL of IOP in SST this would be sufficient!

  • Guest
    Apr 27, 2023
    The IBM team discussed this Idea today, and we want to be sure you are aware that you could use this existing command:


    The VRYCFG command would be used after configuration changes like you have mentioned. Scenario would be something like this:

    I just changed my tape library configuration and I want to have changes propagated to all the device drivers for that tape library.

    I need to find all the IOPs that have that device attached and vary off all the tape devices (stand-alone and libraries) that are on those IOPs.
    -- Note, there can not be any disk attached because those can not be made inactive, so the VRYCFG method won?t work.

    Then I do the VRYCFG with reset for one of the tape libraries or tape devices attached to each of those IOPs to reset the IOPs.

    Then you need to Vary On (without reset) all the other tape devices that were also attached to the same IOP(s).

    The above procedure can be written into a program to make it easier to do.

    Would this fit your need?
  • Guest
    Apr 26, 2023
    Thank you for responding promptly with a particular scenario that demonstrates the need. The IBM team is discussing potential options. This Idea will be updated once those discussions reach a conclusion.

    IBM Power Systems Developmentl
  • Guest
    Apr 21, 2023


    we occassionally have the need to reset/IPL FC IOPs where tape libraries/drives are attached because of reconfiguration on library side or some connection problems.

    It's not so painful if you only have 1 LPAR connected to 1 library, but as we have a lot of LPARs attached to at least 2 libraries it generates a lot of work.

  • Guest
    Apr 21, 2023
    Thank you for your IBM Idea about extending the QSYS2.CHANGE_IOP function to IPL other types of IOPs, such as the virtual Fibre Channel IOPs.

    The team here at IBM has started to analyze the value and feasibility of your request ? we do have a couple of questions:

    1. VIOS attribute changes that affect a virtual Fibre Channel client generally cause the IOP to reIPL automatically, so we are not clear as to why you feel there is a need for this function with virtual Fibre Channel IOPs.

    2. We tend to implement SQL services for functions that are performed frequently and therefore would benefit from some simplification and automation, but reIPLing an IOP is normally required only as part of a service procedure. Are you finding it necessary to frequently IPL some types of IOPs?

    IBM Power Systems Development