PI84298: MCP DATA SPACE TO INCREASE AVAILABLE STORAGE

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• This APAR provides the possibility to use a data space
  to increase the storage available for the modify current
  plan (MCP) actions.
  .
  KEYWORDS for SEARCHABILITY:
  SPE SPE9308 9308 930 SPE8
  dataspace million jobs
  .
  AI: See cover letter for PTF UI51771 for comments
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All IWS for zOS 9.3 users who need to handle *
  *                 very big networks in the current plan.       *
  *                 FUNCTION=MCP.                                *
  ****************************************************************
  * PROBLEM DESCRIPTION: When dealing with a current plan        *
  *                      containing very large networks, the     *
  *                      IWSz controller might run out of        *
  *                      memory.                                 *
  *                      This APAR provides you with the data    *
  *                      space support for MCP actions, as a     *
  *                      solution to save storage in the         *
  *                      controller address space.               *
  *                      After applying this APAR you can        *
  *                      considerably increase the dimension     *
  *                      of the networks that are managed by     *
  *                      IWSz.                                   *
  *                      This APAR enables the MCP task to store *
  *                      portions of the internal control blocks *
  *                      related to occurrences and operations   *
  *                      in a data space, rather than in         *
  *                      storage. In this way less storage is    *
  *                      needed to manage networks.              *
  *                      You can activate this feature by        *
  *                      setting MCPDATASPACE(YES) in the        *
  *                      JTOPTS statement.                       *
  *                      The default is NO.                      *
  ****************************************************************
  This APAR enables the MCP task to store portions of the internal
  control blocks related to occurrences and operations in a
  data space, rather than in storage, during the modify current
  plan actions.
  In this way less storage is needed to manage the networks.
  This feature is optional and can be activated by setting the
  MCPDATASPACE(YES) in the JTOPTS statement.
  (Default is NO).
  

Problem conclusion

Temporary fix

Comments

• This APAR causes the MCP task to store portions of internal
  control blocks that are related to occurrences and operations,
  in a data space rather than in storage.
  In this way, less storage is required to manage the networks.
  If you have set the CPBPLIM parameter in the OPCOPTS statement,
  you might need to decrease the specifed value.
  Two new serviceability messages (EQQMC07I and EQQMC08I) are
  provided to monitor the storage usage.
  This feature is optional and can be activated by setting the
  MCPDATASPACE(YES) in the JTOPTS statement.
  (Default is NO).
  You are also provided with two modify commands (MCPDSSTART
  and MCPDSSTOP) to dinamically activate and deactivate the MCP
  data space usage.
  Documentation changes related to this APAR are published on
  official manuals located on Knowledge Center at the following
  url:
  https://www.ibm.com/support/knowledgecenter/SSRULV_9.3.0/com.
  ibm.tivoli.tws.doc_9.3/welcome_zos.html
  

APAR Information

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

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

  UI51771 UI51772

Modules/Macros

•    EQQCPH66 EQQDCRES EQQEMUXL EQQIPACT EQQIPFSM
  EQQMCAAI EQQMCACO EQQMCAWA EQQMCA55 EQQMCA99 EQQMCCH1 EQQMCCMP
  EQQMCCMR EQQMCCMX EQQMCCPY EQQMCCRT EQQMCCSU EQQMCDEL EQQMCFIL
  EQQMCFLG EQQMCHOC EQQMCINI EQQMCIOX EQQMCMCT EQQMCMIN EQQMCRDY
  EQQMCRER EQQMCRSC EQQMCSUX EQQMCSVI EQQMCTOP EQQMCTQA EQQMCTRL
  EQQMCTR1 EQQMCUXL EQQMCVAL EQQMCXCO EQQMCXDP EQQMCX12 EQQMC0
  EQQMC1   EQQMC1CL EQQMC1DR EQQMC1EX EQQMC1IN EQQMC1RS EQQMC1SC
  EQQMC1UP EQQMC3AC EQQMC3AD EQQMC3AE EQQMC3AN EQQMC3AP EQQMC3AS
  EQQMC3AU EQQMC3AW EQQMC3AX EQQMC3CC EQQMC3CH EQQMC3CN EQQMC3CO
  EQQMC3CP EQQMC3CQ EQQMC3CR EQQMC3CS EQQMC3CT EQQMC3CU EQQMC3DC
  EQQMC3DE EQQMC3DL EQQMC3DP EQQMC3DU EQQMC3DX EQQMC3D0 EQQMC3EN
  EQQMC3FL EQQMC3IC EQQMC3IN EQQMC3IS EQQMC3JN EQQMC3LO EQQMC3MP
  EQQMC3MU EQQMC3OC EQQMC3OD EQQMC3PU EQQMC3RC EQQMC3RD EQQMC3RE
  EQQMC3RM EQQMC3RS EQQMC3RX EQQMC3R9 EQQMC3SA EQQMC3SH EQQMC3SR
  EQQMC3ST EQQMC3SU EQQMC3SV EQQMC3UC EQQMC3UF EQQMC3UP EQQMC3UR
  EQQMC3UU EQQMC3XC EQQMC3XD EQQMC3XP EQQMC3XS EQQMC4CH EQQMC4UP
  EQQMC5CH EQQMHACT EQQMHFSM EQQNMBLD EQQNMCCP EQQNMCC2 EQQNMDSA
  EQQNMEND EQQNMJTO EQQNMLIO EQQNMTO2 EQQNMWRK EQQSVVAL EQQYTOU2
  EQQZCMDX EQQZJBNF EQQZMAIN EQQZMAI2 EQQZMTSK EQQZMTS1 EQQZPJOB
  EQQZTWE  EQQZTWJ  EQQZVARC EQQZVARU EQQZVGSC EQQZVGSE JWSZ932J
  

Fix information

• Fixed component name

  TIV WRKLD SCHD

• Fixed component ID

  5697WSZ01

Applicable component levels

• R930 PSY UI51771

     UP17/11/14 P F711

• R932 PSY UI51772

     UP17/11/14 P F711

Fix is available

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