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Status Not under consideration
Workspace z/OS
Created by Guest
Created on Jan 7, 2014

Dynamically movable Sysplex Distributor Functionality

“Provide an option to specify that ownership of a sysplex distributed dynamic virtual IP address (DDIVPA) would be automatically and/or dynamically moved to various LPARs in a parallel sysplex.”

Idea priority Medium
  • Guest
    Reply
    |
    Nov 19, 2015

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - z Systems Software
    Product - z/OS Communications Server

    For recording keeping, the previous attributes were:
    Brand - WebSphere
    Product family - Enterprise Networking
    Product - z/OS Communications Server

  • Guest
    Reply
    |
    Aug 28, 2014

    The capability to move the Sysplex Distributor responsibility from one LPAR to another is already available using the VARY TCPIP,,SYSPLEX,DEACTIVATE,DVIPA=xx.xx.xx.xx command.   This command can be issued on the Sysplex Distributor system that is experiencing the High CPU utilization conditions to trigger the movement of the Sysplex Distributor responsibility to another z/OS system in the sysplex that has been designated as backup for this DVIPA.  If multiple backups exist. the highest ranked backup will assume the Sysplex Distributor responsibility.  Note that existing TCP connections are not affected by this movement and this LPAR continues to be a target for new connection requests for this DVIPA if it designated a possible target. The movement of the DVIPA occurs as soon as the command is issued.  To restore the Sysplex Distributor function to the original LPAR once CPU resource contention has been resolved, a VARY TCPIP,,SYSPLEX,REACTIVATE,DVIPA=xx.xx.xx.xx command can be issued.  Issuing of these commands can be automated to allow for these dynamic movements to occur under the desired conditions for the installation.