IT32518: THE PERFORMANCE DATA ARE COLLECTED 1 HOUR BEHIND SINCE STORAGE INSIGHTS WAS UPGRADED IN 5.3.6

IBM Spectrum Control 5.3.7 (May 2020)

APAR status

• Closed as program error.

Error description

• For users monitoring SVC/Storwize/Flash System storage,
  the performance data scheduler is running on the Data Collector
  side since 5.3.6, and there is an incorrect time manipulation
  that
  even if the most recently stats are available on SVC,
  Storwize, Flash systems the DC may request the stats shifted
  1 hour behind.
  
  It is an issue on how the Data Collector is polling for iostats.
  
  The "svcinfo lsiostatsdumps" command running on the Storage
  System returns the recently stats (check the timestamp in the
  iostat files)
  
  However the received stats files collected by Storage Insights
  (seen in file tracePerfMgr_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.log)
  are ~1 hour behind.
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Storage Insights users monitoring SVC/Storwize/Flash     *
  * System and seeing performance data collection 1 hour behind  *
  * on charts                                                    *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * For users monitoring SVC/Storwize/Flash System storage,      *
  * this is an issue on how the Storage Insights Data Collector  *
  * is polling for iostats                                       *
  *                                                              *
  * Changes to the Storage Insights Data Collector (Q1 2020)     *
  * updated the performance data scheduler to run on the         *
  * Data Collector instead of the server.                        *
  *                                                              *
  * There was an incorrect time manipulation that even if the    *
  * most recent iostats are available on SVC / Storwize /        *
  * Flash systems the DC may request the stats shifted 1 hour    *
  * behind.                                                      *
  *                                                              *
  * Performance data collection is 1 hour behind and can be      *
  * noticed in PM job log or PM chart.                           *
  ****************************************************************
  * 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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