IBM Support

VM66504: PREREQUISITE SUPPORT FOR ANY FUTURE PROCESSOR

A fix is available

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as new function.

Error description

  • APAR VM66504 provides infrastructure support to prepare a
    Single System Image (SSI) cluster that may include any future
    IBM Z server and must be installed on all members of the SSI.
    Installation of this APAR must be done before any member of the
    SSI cluster will be running on a new server.
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: Users that wish to include any future        *
    *                 IBM Z server in an SSI cluster.              *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    ****************************************************************
    * RECOMMENDATION: APPLY PTF                                    *
    ****************************************************************
    This APAR accommodates a larger facility list length that
    may be presented on a new server. Support of the larger
    length on all members of an SSI cluster ensures members with
    different list lengths are compatible, and avoids unnecessary
    trapping and simulation of the STFLE instruction on existing
    members.
    
    Compatibility checking is adjusted so that a guest running
    on an existing member can smoothly relocate to and from a
    new server once it joins the SSI cluster and the guest's
    relocation domain. Without this APAR on existing members, the
    lack of obsolete architectural facilities on a new server
    could unnecessarily impede such relocation.
    
    Additionally, z/VM's dependency on the
    Load-Program-Parameter (LPP) facility is now enforced on
    z/VM release 7.2 during CP initialization. This facility is
    already included in the 7.2 architecture level set and is
    present on all IBM processors supported by z/VM 7.2.
    

Problem conclusion

Temporary fix

Comments

  • A new server that is added as a member to an SSI cluster
    may introduce some incompatibilities with existing servers.
    To avoid any potential problems, this APAR adds support to
    ensure the new server may be a part of the SSI cluster
    and eligible for Live Guest Relocation (LGR).
    

APAR Information

  • APAR number

    VM66504

  • Reported component name

    VM CP

  • Reported component ID

    568411202

  • Reported release

    720

  • Status

    CLOSED UR1

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    YesSpecatt / New Function / Xsystem

  • Submitted date

    2021-02-22

  • Closed date

    2021-08-17

  • Last modified date

    2022-03-28

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

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

    UM35897 UM35898

Modules/Macros

  • FORMSSI  HCPAPX   HCPARD   HCPARDBK HCPASI   HCPBIE   HCPBIS
    HCPBOU   HCPBVM   HCPB9S   HCPCBI   HCPCCF   HCPCCS   HCPCFS
    HCPCIO   HCPCPU   HCPCQG   HCPDG3   HCPDSP   HCPDUP   HCPESS
    HCPFXR   HCPGIR   HCPGIV   HCPGSP   HCPHVR   HCPISR   HCPJRL
    HCPKAP   HCPKAR   HCPKAU   HCPKFL   HCPKRY   HCPLGN   HCPLKS
    HCPMCH   HCPMCI   HCPMEO   HCPMFO   HCPMF1   HCPMIU   HCPMNU
    HCPMOI   HCPMPS   HCPMTO   HCPMXB   HCPPCH   HCPPCK   HCPPCV
    HCPPDA   HCPPDF   HCPPDR   HCPPDRBK HCPPLM   HCPPRG   HCPPRV
    HCPPSW   HCPQCP   HCPQPR   HCPQPS   HCPRDM   HCPRFI   HCPRLE
    HCPRLG   HCPRLJ   HCPRLP   HCPSAL   HCPSHI   HCPSTFLE HCPSVI
    HCPTGR   HCPUSP   HCPVAI   HCPVAR   HCPVCF   HCPVCG   HCPVCY
    HCPVPD   HCPVPT   HCPVQR   HCPVQT   HCPVTX   HCPWAR   HCPWIS
    HCPWPR   HCPWRU   HCPWRW   HCPWVS   HCPXDS   HCPXLK   HCPXSC
    HCPYJT
    

Fix information

  • Fixed component name

    VM CP

  • Fixed component ID

    568411202

Applicable component levels

  • R710 PSY UM35897

       UP21/08/18 I 1000  

  • R720 PSY UM35898

       UP21/08/18 P 2201  

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.

[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG27M"},"Platform":[{"code":"PF054","label":"z\/OS"}],"Version":"720","Line of Business":{"code":"LOB16","label":"Mainframe HW"}}]

Document Information

Modified date:
29 March 2022