OA55074: ENHANCE CANZLOG TO ALLOW FOR SMALLER DATA SPACE ALLOCATION (EXTENDED PORTION)

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• There are cases where even a 512 megabyte data space for Canzlog
  (using the TINYDS initialization parameter) is too large. This
  enhancement provides the capability to use a smaller data space
  size, which is expanded if needed.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of Tivoli NetView for z/OS V6R1    *
  *                 and above.                                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: The main Canzlog data space, which      *
  *                      defaults to a full data space size of   *
  *                      2GB and which is allocated under the    *
  *                      Master Scheduler address space,         *
  *                      requires much auxiliary storage         *
  *                      backing. This may not be feasible for   *
  *                      many smaller installations.             *
  ****************************************************************
  The main Canzlog data space, which holds system and NetView
  messages, as well as some other information, is allocated under
  the Master Scheduler address space and can only be defined as a
  full data space size (2GB) or one-quarter of that for smaller
  installations (512MB). The smaller size still requires more real
  storage backing than some installations would like to provide.
  When the volume of messages is low, there should be no need for
  a data space size as large as 512MB.
  

Problem conclusion

Temporary fix

Comments

• Tivoli NetView V6R2M1 is being changed such that the main
  Canzlog data space can be configured to initially use only 128MB
  of virtual storage and to expand as needed.
  See the closing text of base portion APAR OA55071 for defails.
  

APAR Information

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

  OA55071

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

  UA97437

Modules/Macros

•    CNMSTYLE DSICBH   DSI4LSIT
  

Fix information

• Fixed component name

  NETVIEW FOR Z/O

• Fixed component ID

  5697NV600

Applicable component levels

• R21B PSY UA97437

     UP18/09/21 P F809

Fix is available

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