VM65976: LGR SUPPORT FOR ESA/390 REMOVAL

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• This APAR provides infrastructure support for live guest
  relocation (LGR) in a single system image (SSI) cluster when a
  machine becomes available that includes ESA/390 removal.  It
  provides support needed for LGR compatibility with future
  machines.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of live guest relocation for       *
  *                 machine upgrade purposes                     *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  ****************************************************************
  * RECOMMENDATION: APPLY PTF                                    *
  ****************************************************************
  The failing scenario is this.  A machine in the SSI cluster
  is about to be upgraded to newer model hardware.  To do this,
  it is expected that critical Linux virtual machines can first
  be live guest relocated (LGR) off of the member(s) whose
  machine is being upgraded.  After the hardware upgrade is
  complete, the Linux guest can be moved back to the member
  whose hardware was just upgraded.  Thus the upgrade is done
  without the need to stop critical applications.
  
  The problem is that sometimes the relocation back to the
  upgraded hardware will not work.  This relocation to the
  machine with the newer architecture should be an upgrade,
  and therefore the relocation should work.
  

Problem conclusion

• The virtual architecture level code has been changed to fix the
  ARD comparison problem that causes failure of the relocation
  back to the original member.
  

Temporary fix

• FOR RELEASE VM/ESA CP/ESA R620 :
  PREREQ: VM65846 VM65577
  CO-REQ: NONE
  IF-REQ: NONE
  FOR RELEASE VM/ESA CP/ESA R630 :
  PREREQ: VM65984 VM65846 VM65748 VM65733
  CO-REQ: NONE
  IF-REQ: NONE
  FOR RELEASE VM/ESA CP/ESA R640 :
  PREREQ: VM65984
  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:

  UM35061 UM35062 UM35063

Modules/Macros

• HCPARD   HCPARDBK HCPWVS
  

Fix information

• Fixed component name

  VM CP

• Fixed component ID

  568411202

Applicable component levels

• R620 PSY UM35061

     UP17/03/02 I 1000

• R630 PSY UM35062

     UP17/08/25 P 1701

• R640 PSY UM35063

     UP17/03/02 P 1701

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.