VM66098: Z-THIN PROVISIONING

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• New Function: z-Thin Provisioning support
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of DS8000 Extent Space Efficient   *
  *                 thin provisioned volumes.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  ****************************************************************
  * RECOMMENDATION: APPLY PTF                                    *
  ****************************************************************
  z/VM currently has no recognition of Extent Space Efficient
  capability or events related to usage of such disk space.  In
  addition, these devices can currently only be used for guest
  disks.
  

Problem conclusion

Temporary fix

• FOR RELEASE VM/ESA CP/ESA R640 :
  PREREQ: VM66029 VM65988 VM66104 VM66140 VM66083 VM66026
  PREREQ: VM65414
  PREREQ: VM65943
  CO-REQ: NONE
  IF-REQ: NONE
  

Comments

• Support has been added to enable guest and host recognition
  and exploitation of Extent Space Efficient Thin Provisioned
  volumes.  The following new features for these ESE devices
  are now available:
  
  1) Pool space events (space warning, out of space, space
     constraint relieved) are now reported to OPERATOR.
  2) The new RELSPACE command to return disk space back to
     the pool.
  3) Query command enhancements to indicate a devices ESE
     support and to check pool space usage.
  4) Unlike Track Space Efficient (TSE) devices, ESE volumes
     can contain CPOWNED and System Resident space once the
     device is fully provisioned.
  5) Flashcopy commands updated to release allocated space
     when full volume extents are withdrawn.
  6) Simulation of ESE related I/O commands for guest
     dedicated disks and full pack and 1-END minidisks.
  
  ----------------------------------------------------------------
  
  This PTF should be applied along with PTF UV99329 for the
  related DirMaint APAR VM66108.
  
  ----------------------------------------------------------------
  
  THE FOLLOWING CHANGES HAVE BEEN MADE TO THE SYSTEM REFERENCE
  LIBRARIES:
  ***START PUBLICATION CHANGE*************************************
  PUBLICATION TITLE: CP Commands and Utilities Reference
  
            RELEASE: z/VM 6.4
  
  ORDER NUMBER: SC24-6175-12
  
  -------------------------------------------
  ABSTRACT:
  Changes to commands affected by z-Thin Provisioning
  BODY:
  New CP command RELSPACE.  Updated CP commands FLASHCOPY
  ESTABLISH, FLASHCOPY WITHDRAW and QUERY DASD.
  Updated CP utility IOEXPLOR.
  
  ***END PUBLICATION CHANGE***************************************
  
  ***START PUBLICATION CHANGE*************************************
  PUBLICATION TITLE: CP Messages and Codes
  
            RELEASE: z/VM 6.4
  
  ORDER NUMBER: GC24-6177-12
  
  -------------------------------------------
  ABSTRACT:
  New messages added for response to Thin Provision Pool events
  and the new RELSPACE command
  BODY:
  New CP messages HCP6431I indicating Thin Provision Pool events
  and HCP6432I for error responses for the RELSPACE commmand.
  utility IOEXPLOR. Updated CP message HCP296E for a new
  FLASHCOPY error reason code.
  
  ***END PUBLICATION CHANGE***************************************
  
  ***START PUBLICATION CHANGE*************************************
  PUBLICATION TITLE: CP Planning and Administration
  
            RELEASE: z/VM 6.4
  
  ORDER NUMBER: SC24-6178-14
  
  -------------------------------------------
  ABSTRACT:
  Updates to section on Space-Efficient Volumes
  BODY:
  Chapter 24 section "Space-Efficient Volumes" was updated with
  additional information on the new commands for Extent
  Space Efficient volumes and to indicate previous restrictions
  on space efficient volume usage only apply to Track Space
  Efficient volumes.
  
  ***END PUBLICATION CHANGE***************************************
  ×**** PE19/11/09 FIX IN ERROR. SEE APAR VM66342  FOR DESCRIPTION
  

APAR Information

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

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

  UM35295 UM35296

Modules/Macros

• CP       DASD     ESTABLIS HCPAMR   HCPCMM   HCPCOM   HCPDDP
  HCPDUP   HCPICU   HCPIORBK HCPMD3   HCPMD5   HCPMES   HCPMESA
  HCPMESB  HCPMNO   HCPMOM   HCPMXI   HCPMXRBK HCPNFC   HCPPFC
  HCPQDB   HCPQDE   HCPRDEV  HCPRLF   HCPRLV   HCPSDV   HCPSVI
  HCPSVI$  HCPVDEV  HCPVDS   HCP296E  HCP6431I HCP6432I IOEXPLOR
  LGRIORBK LGRVDEV  MRIODDEV MRIODVON MRMTRDEV RELSPACE SDMCWOEQ
  WITHDRAW
  

Fix information

• Fixed component name

  VM CP

• Fixed component ID

  568411202

Applicable component levels

• RA64 PSY UM35295

     UP18/12/14 P 1802  

• R640 PSY UM35296

     UP18/03/28 P 1802  

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.