OA51587: ABENDE37-08 WHEN EXTENDING TO A VOLUME WITH NO SPACE. Z/OS2.2 ONLY

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• ABENDE37-08 when extending to a volume with insufficient space.
  The result is an overwrite of the VTOC track start+1. Any
  following requests to the VTOC fail with a CVSTAT x'7F' (127)
  I/O error.
  
  It seems this is triggered by an ABEND EXIT that IGNOREs the
  ABEND.
  
  *********
  * HIPER *
  *********
  

Local fix

• Disable the Secondary Space Relief (SSR) function.
  
  Turning off SSR can result in experiencing the issue described
  by OA51474.  It is highly recommended that the ++APAR for
  OA51474 be applied as well OR Restore UA82730.  It can be found
  in the testcase.boulder.ibm.com server in the fromibm/mvs
  directory as AA51474.HDZ2220
  
  This will require an IPL.
  
  F DEVMAN,DISABLE(SSR) on the z/OS 2.2 images (this does NOT
  persist across IPLs).
  
  - OR -
  
  Permanently disable the SSR function until the PTF is available
  by updating the DEVSUPxx parmlib member with;
  
  DISABLE(SSR)
  
  Make this the LAST parameter if you share Parmlib across a
  SYSPLEX with different Z/OS levels. This parm is only recognized
  by z/OS 2.2
  
  Expect a IEA252E message in pre z/OS 2.2 images as this
  parameter is not supported there.
  
  Then issue the SET DEVSUP=(xx,yy) or SET DEVSUP=xx command per
  your installation.
  
  ---------------------------------------------------------------
  
  Check to ensure SSR is not enabled via;
  F DEVMAN,REPORT
  
  When disabled, SSR should NOT display under OPTIONS;
  **** DEVMAN *************************************************
  * FMID:  HDZ2220                                            *
  * APARS: UA81678  UA80876  UA81756  UA77616                 *
  * OPTIONS:  REFUCB    SSR                                   *
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: HDZ2220 or above users                       *
  ****************************************************************
  * PROBLEM DESCRIPTION: See Error description                   *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  During SMS Space Constraint Relief (SCR) processing for a
  non-VSAM New Volume Extend request, SMS sets the secondary space
  in the primary space field (DACPRIKB) without resetting the
  secondary request bit (DACSECRQ).
  This causes DADSM to allocate the VTOC entry without
  allocating any secondary space on the volume.  This may
  further result in an overwrite of the VTOC track start+1
  as reported in OA51499.
  

Problem conclusion

• Reset DACSECRQ bit as the secondary space is passed in the
  DACRE primary quantity fields when SCR is used to extend
  a non-VSAM data set to a new volume.
  

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

APAR Information

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

  OA51499

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

  UA83445

Modules/Macros

• IGDVTSDA
  

Fix information

• Fixed component name

  STORAGE MGMT SU

• Fixed component ID

  5695DF101

Applicable component levels

• R220 PSY UA83445

     UP16/12/06 P F612 Ž

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.