VM65693: MISCELLANEOUS FIXES

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• (1) Building a production IODF with HCM fails to assign default
  CHID values for IQD channels
  (2) Incremental migration incorrectly sets the maximum number
      of devices in a subchannel set
  (3) The proposed number of devices of a CF connection via
      CS5 channels is incorrect
  (4) Missing warning when changing the lowest channel subsystem
      of a CF connection via CS5 channels
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: all HCD users                                *
  ****************************************************************
  * PROBLEM DESCRIPTION: 1. When building a production IODF      *
  *                         with HCM:                            *
  *                         IQD channels on 2964 processors      *
  *                         without a defined virtual            *
  *                         channel ID (CHID) do not get         *
  *                         default virtual channel IDs          *
  *                         assigned.                            *
  *                      2. When migrating an IOCP deck          *
  *                         incrementally:                       *
  *                         HCD fails to migrate the MAXDEV      *
  *                         parameter of the RESOURCE statement  *
  *                         correctly and sets the maximum       *
  *                         number of devices in a subchannel    *
  *                         set to zero.                         *
  *                      3. (z/VM V5R4 only)                     *
  *                         When connecting a coupling channel   *
  *                         of type CS5:                         *
  *                         HCM incorrectly proposes 7 as the    *
  *                         default number of CF devices.        *
  *                         Accepting the proposed value with    *
  *                         ENTER leads to error message         *
  *                         CBDG427I (MSGCBDG427I).              *
  *                      4. When working with a coupling         *
  *                         connection between distinct          *
  *                         processors over spanned CS5          *
  *                         channels:                            *
  *                         when changing the lowest channel     *
  *                         subsystem on one end of the          *
  *                         connection(by adding / removing      *
  *                         an LPAR to/from the access list      *
  *                         of the channel),                     *
  *                         HCD fails to warn that this may      *
  *                         require an activation of the         *
  *                         connected processor.                 *
  ****************************************************************
  * RECOMMENDATION: 1. When building a production IODF           *
  *                    with HCM:                                 *
  *                    IQD channels on 2964 processors           *
  *                    without a defined virtual                 *
  *                    channel ID (CHID) now get                 *
  *                    default virtual channel IDs               *
  *                    assigned.                                 *
  *                    Message CBDG560I is shown for each        *
  *                    such assignment (MSGCBDG560I).            *
  *                 2. When migrating an IOCP deck for a         *
  *                    newer processor                           *
  *                    (requiring a maximal HSA definition):     *
  *                    HCD ignores the MAXDEV parameter of       *
  *                    the RESOURCE statement in the deck        *
  *                    and sets the maximum number of            *
  *                    devices to the predefined maximum         *
  *                    for the processor type.                   *
  *                    When migrating for older processor        *
  *                    types: complete migration behaves         *
  *                    as described above.                       *
  *                    Incremental migration sets the            *
  *                    maximum number of devices as              *
  *                    specified in the deck.                    *
  *                    If 0 (zero) is specified in the deck,     *
  *                    incremental migration leaves the          *
  *                    existing value unchanged.                 *
  *                 3. (z/VM V5R4 only)                          *
  *                    When connecting a coupling channel        *
  *                    of type CS5:                              *
  *                    HCM now correctly proposes 8 as the       *
  *                    default number of CF devices              *
  *                 4. When working with a coupling connection   *
  *                    between distinct processors over          *
  *                    spanned CS5 channels:                     *
  *                    when changing the lowest channel          *
  *                    subsystem on one end of the connection    *
  *                    (by adding / removing an LPAR to/from     *
  *                    the access list of the channel),          *
  *                    HCD now warns with message CBDG422I       *
  *                    that this may require an activation of    *
  *                    the connected processor. The wording      *
  *                    of message CBDG422I (MSGCBDG422I)is       *
  *                    generalized to refer to 'coupling'        *
  *                    chpids (rather than specifically to       *
  *                    CIB chpids).                              *
  *                                                              *
  *                 KEYWORDS: D/T2964                            *
  ****************************************************************
  Various fixes
  

Problem conclusion

Temporary fix

Comments

• n/a
  

APAR Information

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

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

  UM34573 UM34574

Modules/Macros

• CBDEM00G CBDG422  CBDG422I CBDMDCPP CBDMDCP3 CBDMGCP0 CBDMGPR0
  CBDMMPRC CBDMSVCH
  

Fix information

• Fixed component name

  HCD/HCM

• Fixed component ID

  568411219

Applicable component levels

• R540 PSY UM34573

     UP15/03/26 P 1501

• R620 PSY UM34574

     UP15/03/26 P 1601

Fix is available

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