IZ62805: subagent unload snmpv3 loses all VACM settings permanently

IBM Tivoli 4.0.0-TIV-SSM-FP0010
IBM Tivoli 4.0.0-TIV-SSM-FP0011
IBM Netcool System Service Monitor SSM 4.0 Fix Pack 12 README 4.0.0-TIV-SSM-FP0012
IBM Netcool System Service Monitor SSM 4.0 Fix Pack 13 README 4.0.0-TIV-SSM-FP0013
IBM Netcool System Service Monitor SSM 4.0 Fix Pack 14 README 4.0.0-TIV-SSM-FP0014
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 1 README 4.0.0.14-TIV-SSM-IF0001
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 2 README 4.0.0.14-TIV-SSM-IF0002
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 3 README 4.0.0.14-TIV-SSM-IF0003
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 4 README 4.0.0.14-TIV-SSM-IF0004
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 5 README 4.0.0.14-TIV-SSM-IF0005
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 6 README 4.0.0.14-TIV-SSM-IF0006
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 7 README 4.0.0.14-TIV-SSM-IF0007
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 8 README 4.0.0.14-TIV-SSM-IF0008
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 1 README 4.0.0.15-TIV-SSM-IF0001

APAR status

• Closed as program error.

Error description

• In SSM 4.0, subagent unload snmpv3 loses all VACM settings
  permanently.
  
  This is because VACM settings are only remembered by a graceful
  shutdown (save state) and only when RestoreState=on. If the
  agent then shuts down with snmpv3 already unloaded then no state
  information for snmpv3, including vacm settings, will be
  remembered.
  

Local fix

• 1. Don't "subagent unload snmpv3" if SNMPv3 VACM support will
  still be required in future.
  2. Manually back up the file "config/agent.state" if you are
  concerned about this problem.
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users of the snmpv3 subagent in SSM 4.0.
  ****************************************************************
  PROBLEM DESCRIPTION:
  subagent unload snmpv3 loses all VACM settings permanently
  ****************************************************************
  RECOMMENDATION:
  Upgrade to Fix Pack 9 for SSM 4.0.
  ****************************************************************
  

Problem conclusion

• VACM settings will no longer be removed on "subagent unload
  snmpv3". They will be kept unless explicitly removed
  individually. Also note: subagent unload snmpv3 can still lead
  to settings being forgotten later IF set restore is ON and
  snmpv3 does not get reloaded before the agent is rebooted.
  
  The fix for this APAR is contained in the following maintenance
  packages:
  | fix pack | 4.0.0-TIV-SSM-FP0009
  

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

  NETCOOL SYS SVC

• Fixed component ID

  5724P4300

Applicable component levels

• R400 PSN

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