IT32265: PERFORMANCE DATA COLLECTION VIA STORAGE INSIGHTS MAY FAIL IF MISMATCHED DATA COLLECTOR HOSTNAME

IBM Spectrum Control 5.3.7 (May 2020)

APAR status

• Closed as program error.

Error description

• Due to a mismatch between the Data Collector server name, which
  in some cases may contain capital letters and in some cases
  does not, or may have recently changed, the system fails to
  execute the performance data jobs on the server side.
  
  In the performance log:
  HWNPM2132W 	Performance data could not be collected for device
  XXXXXXXXXX (XXXXXXXXX). The current samples are skipped.
  (HWNPM4304E The request for performance data could not be
  retrieved from the queue by the data collector, probably this
  one is down or encountered problems connecting to the server).
  
  
  In the server log: traceDataCollectorManager_*.log
  
  [CollectorTaskManagerUtils.addDeviceToDataCollector] [ERROR]
  Exception thrown calling the dcms
  com.ibm.srm.datacollectormanager.api.DataCollectorManagerExcepti
  on: Failed to execute the system action
  {"actionType":"ADD","system":{"systemID":{"systemUUID":"123ac123
  -1234-1234-1234-123456789"}}}
  

Local fix

• This workaround can be applied immediately to resume data
  collection:
  
  Edit the hosts file on the Data Collector machine to set it to
  the original hostname (as seen in the Storage Insights GUI,
  Data Collector panel)
  
  Then restart the Data Collector.
  
  On Windows, the hosts file is located at:
  
  C:\Windows\System32\Drivers\etc\hosts
  
  On Unix machines it is:
  
  /etc/hosts
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Storage Insights users with Data Collector deployed on       *
  * server hostname which has changed                            *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * Due to a mismatch between the Data Collector server name,    *
  * which                                                        *
  * in some cases may contain capital letters and in some cases  *
  * does not, or may have recently changed, the system fails to  *
  * execute the performance data jobs on the server side.        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• The fix for this APAR is targeted for the following release:
  
  IBM Storage Insights 2Q20   [ 5.3.7-IBM-SC ]
  
  ( release target 2Q 2020 / May )
  
  The target dates for future releases do not represent a formal
  commitment by IBM. The dates are subject to change without
  notice.
  

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

  STORAGE INSIGHT

• Fixed component ID

  5608TPCSI

Applicable component levels

• R536 PSY

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