IT12401: THE DEFAULT VALUE FOR "STORAGE MAXIMUM LIMIT (K,M,G)" FOR THE GPFS CLIENT POLICY IS INSUFFICIENT FOR 2 IBM MQ QUEUE MANAGERS

APAR status

• Closed as program error.

Error description

• The "MQ Advanced V8.0 Virtual System Pattern Type for IBM
  PureApplication System Multilingual (CN7AEML)" includes a
  template "IBM MQ Multi-instance with 2 pairs" that includes
  a default value  for the "Storage Maximum limit (K,M,G)" of
  100M which is insufficient for 2 queue managers.
  
   When creating IBM MQ Virtual System Pattern Type patterns from
  existing templates with this preset default GPFS storage
  limitation value, the pattern with a pair of HA Multi-instance
  IBM MQ components will fail to deploy.
  
   One or both of the following might be witnessed:
   The active and standby queue manager in the VM fail to start.
   The trace.log shows the IBM MQ error (893).
  

Local fix

• When using the provided template to create your pattern, change
  the GPFS storage maximum value to 1G or higher depending on your
  requirements.
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users of the IBM MQ Virtual System Pattern Type patterns from
  existing templates with a preset default GPFS storage limitation
  value.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  The pattern failed to deploy because the GPFS storage maximum
  limitation value in the pattern template provided was set too
  low. The value in the pattern template was 100M but should be
  higher.
  
  Each queue manager requires approximately 100M of space when
  created but this storage requirement will increase with further
  configuration and runtime processing of messages. The same GPFS
  partition might be used in multiple deploys, so the
  configuration needs to allow enough storage for the required
  workload
  

Problem conclusion

• The IBM MQ Virtual System Pattern Type pattern template has been
  updated to set the GPFS storage maximum limitation value to 1G
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v8.0       8.0.0.5
  
  The latest available maintenance can be obtained from
  'WebSphere MQ Recommended Fixes'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
  
  If the maintenance level is not yet available information on
  its planned availability can be found in 'WebSphere MQ
  Planned Maintenance Release Dates'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
  ---------------------------------------------------------------
  

Temporary fix

Comments

APAR Information

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

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

Fix information

• Fixed component name

  WMQ BASE MULTIP

• Fixed component ID

  5724H7251

Applicable component levels

• R800 PSY

     UP