VM65374: SMAPI DOESN'T DETECT DUPLICATE ENSEMBLE MAC PREFIX

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• SMAPI does not detect the situation in which a VM system is
  trying to join an ensemble with an ensemble mac prefix that
  matches one already in use.  That is, it is not detected when a
  VM system attempting to join an ensemble is a clone of another
  VM system already in the cluster.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: z/VM 6.2 Users of Unified Resource Manager   *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  ****************************************************************
  * RECOMMENDATION: APPLY PTF                                    *
  ****************************************************************
       Cloning a VM System in an Ensemble causes communication
  failures within the Ensemble.
       zManager is being changed to send a command to SMAPI to
  leave the ensemble if the VM system is trying to join the
  ensemble with an ensemble mac prefix that matches one already in
  use.  This would indicate the VM system attempting to join is a
  clone of another VM system already in the cluster.
  

Problem conclusion

• SMAPI has been changed to perform the following steps when
  the VM system is identified as a clone of another VM system
  already in the Ensemble.
  1. Execute ensemble termination for that z/VM System.
  2. Send a message to the VM System Operator that this VM system
     has been identified as a Clone, and must be re-ipled to join
     the ensemble.
  3. Update the SMAPI LOG file to indicate that the VM System was
     identified by zManager as a Clone.
                                                                 .
  NOTE:  Installations using the Unified Resource Manager for
  integrated systems management of z/VM must apply bundle #25 for
  driver D15 (zEC12 / zBC12).  Bundle details, when available, can
  be found in the 2827DEVICE or 2828DEVICE hardware PSP bucket and
  also at the z/VM Unified Resource Manager web page:
  http://www.vm.ibm.com/service/vmrequrm.html
  

Temporary fix

• FOR RELEASE ES-CMS-620-BASE :
  PREREQ: NONE
  CO-REQ: NONE
  IF-REQ: NONE
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UM34477

Modules/Macros

• DMSSSSES
  

Fix information

• Fixed component name

  VM CMS

• Fixed component ID

  568411201

Applicable component levels

• R620 PSY UM34477

     UP14/11/14 P 1501

Fix is available

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