VM66051: ABENDSDV001 AFTER A UNPLANNED HYPERSWAP

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Customer experienced a SDV001 abend after a Unplanned Hyperswap
  was triggered and successfully completed.
  Normally, the 001 abend is a SOFT abend.
  But if encountered again while z/VM is in
  the middle of processing one of the same
  type, z/VM will treat the second as a HARD
  abend.  This prevented the controlling
  system of the Hyperswap from completing
  the RESUME phase.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of z/VM                            *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  ****************************************************************
  * RECOMMENDATION: APPLY PTF                                    *
  ****************************************************************
  A hard ABENDSDV001 was taken due to several logical subsystems
  failing PPRC related recovery following an unplanned Hyperswap.
  Recovery I/O to these devices failed due to the problem which
  prompted the Hyperswap.
  

Problem conclusion

• ABENDSDV001
  
  The failing recovery is of the type that it could be deferred to
  a later time rather than taking the ABENDSDV001.  The code for
  the abend will be removed which will allow the associated
  recovery routine to always complete without the previous risk of
  causing an outage for the entire system.
  

Temporary fix

• FOR RELEASE VM/ESA CP/ESA R540 :
  PREREQ: VM65825
  CO-REQ: NONE
  IF-REQ: NONE
  FOR RELEASE VM/ESA CP/ESA R630 :
  PREREQ: VM66018
  CO-REQ: NONE
  IF-REQ: NONE
  FOR RELEASE VM/ESA CP/ESA R640 :
  PREREQ: VM66018
  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:

  UM35173 UM35174 UM35175

Modules/Macros

• HCPSDV
  

Fix information

• Fixed component name

  VM CP

• Fixed component ID

  568411202

Applicable component levels

• R540 PSY UM35173

     UP17/07/25 I 1000 ¢

• R630 PSY UM35174

     UP17/07/25 I 1000 ¢

• R640 PSY UM35175

     UP17/11/24 P 1702 ¢

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.