VM65339: STATE CHANGE SVMR RECORD FOR ONLINE DEVICES ONLY

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• x/DR requires an SVMR record on state changes for PPRC devices.
  When receiving the record they will issue a QUERY dev command.
  This could cause Hyperswap Quiesce or Swap phases to time-out.
  The reason is is because the Proxy has Class G privileges and
  VM will attempt to process this as QUERY userid first.  This
  may cause a page read on the user directory and the paging
  device could be quiesced at this point.
  

Local fix

• Give the Proxy all privilege classes.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All z/VM Hyperswap Command Users             *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  ****************************************************************
  * RECOMMENDATION: APPLY PTF                                    *
  ****************************************************************
  An SVMR record is created for state changes on PPRC devices.
  When x/DR receives the record it will issue a "QUERY dev".
  If the virtual machine has only class G privileges z/VM
  will first check if the parameter following the QUERY is a
  userid.  If this occurs during a Hyperswap this could cause
  a page read to occur on the user directory which exists on
  a Quiesced device.  This can result in the Quiesce or Swap
  phases of the HS to time-out, causing the HS to fail.
  

Problem conclusion

• z/VM will only supply SVMR records for state changes when the
  PPRC device is online now.  SA MP will no longer need to issue
  the CP QUERY rdev command to determine if the device is offline.
  They will be removing that code with their fix.  With both APARs
  applied the time-outs will no longer occur.
  This APAR MUST be applied in conjunction with SA MP APAR IV41211
  

Temporary fix

• *********
  * HIPER *
  *********
  FOR RELEASE VM/ESA CP/ESA R540 :
  PREREQ: VM65122 VM65224 VM65142
  CO-REQ: NONE
  IF-REQ: NONE
  FOR RELEASE VM/ESA CP/ESA R620 :
  PREREQ: VM65122 VM65224 VM65142
  CO-REQ: NONE
  IF-REQ: NONE
  FOR RELEASE VM/ESA CP/ESA R630 :
  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:

  UM34022 UM34023 UM34024

Modules/Macros

• HCPDPC   HCPERP   HCPIOJ
  

Fix information

• Fixed component name

  VM CP

• Fixed component ID

  568411202

Applicable component levels

• R540 PSY UM34022

     UP13/07/03 P 1301

• R620 PSY UM34023

     UP13/07/03 P 1302

• R630 PSY UM34024

     UP13/07/03 P 1401

Fix is available

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