IT49215: STORAGE INSIGHTS REPORTS INCONSISTENT USABLE CAPACITY VALUES FOR DS8000 STORAGE SYSTEMS WHEN COMPARED TO THE DS8000 GUI.

APAR status

• Closed as program error.

Error description

• Customers using DS8000 storage systems may observe discrepancies
  in the usable capacity values reported in Storage Insights when
  compared to the values displayed in the DS8000 GUI.
  
  After data collection, Storage Insights reports pool-level
  usable capacity values that do not align with those shown in the
  DS8000 GUI Pools view.
  
  Additionally, when aggregating the usable capacity across all
  pools in Storage Insights, the resulting total does not match
  the usable capacity reported by the DS8000 system.
  
  This behavior suggests a potential inconsistency in how usable
  capacity is calculated, aggregated, or presented within Storage
  Insights.
  
  As a result, customers may experience inconsistencies when
  validating capacity metrics between Storage Insights and the
  DS8000 GUI, which can impact confidence in reported data and
  capacity analysis.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Storage Insights users monitoring DS8K Systems           *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * Customers using DS8000 storage systems may observe           *
  * discrepancies                                                *
  * in the usable capacity values reported in Storage Insights   *
  * when                                                         *
  * compared to the values displayed in the DS8000 GUI.          *
  *                                                              *
  * After data collection, Storage Insights reports pool-level   *
  * usable capacity values that do not align with those shown in *
  * the                                                          *
  * DS8000 GUI Pools view.                                       *
  *                                                              *
  * Additionally, when aggregating the usable capacity across    *
  * all                                                          *
  * pools in Storage Insights, the resulting total does not      *
  * match                                                        *
  * the usable capacity reported by the DS8000 system.           *
  *                                                              *
  * This behavior suggests a potential inconsistency in how      *
  * usable                                                       *
  * capacity is calculated, aggregated, or presented within      *
  * Storage                                                      *
  * Insights.                                                    *
  *                                                              *
  * As a result, customers may experience inconsistencies when   *
  * validating capacity metrics between Storage Insights and the *
  * DS8000 GUI, which can impact confidence in reported data and *
  * capacity analysis.                                           *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• The fix for this APAR is targeted for the following release:
  
  IBM Storage Insights 2Q26   [ 54X-IBM-SI ]
  ( release target 2Q 2026 / June )
  
  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