IT32531: STORAGE INSIGHTS MANAGED CAPACITY IS INCORRECTLY REPORTED FOR FS9100 DEVICES.

IBM Spectrum Control 5.3.7 (May 2020)

APAR status

• Closed as program error.

Error description

• Storage Insights reports incorrect metrics for managed
  capacity.
  Currently, ?raw capacity? is derived from ?logical
  capacity? metrics, instead of ?physical capacity? metrics as it
  should be.
  For RAID Arrays, physical capacity should be renamed
  to ?capacity? and the current ?capacity? column would be more
  correctly labeled as ?written capacity limit?.
  This is causing
  confusion in reported capacity metrics between Storage Insights
  and the FS9100/SVC native capacity metrics that are reported by
  the devices themselves.
  RECREATE STEPS:
  Observe discrepancies
  between FS9100 device metrics and those reported in Storage
  Insights.
  Problem as described by customer:
  Storage Insights
  Managed Capacity is Incorrect
  Initial customer impact
  (low/med/high): med
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Storage Insights users viewing capacity of FS9100        *
  * devices                                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * Storage Insights reports incorrect metrics for managed       *
  * capacity.                                                    *
  *                                                              *
  * Currently, "raw capacity" is derived from                    *
  * "logical capacity" metrics, instead of "physical capacity"   *
  * metrics as it should be.                                     *
  *                                                              *
  * For RAID Arrays, physical capacity should be renamed         *
  * to "capacity" and the current "capacity" column would be     *
  * more correctly labeled as "written capacity limit".          *
  *                                                              *
  * This is causing confusion in reported capacity metrics       *
  * between Storage Insights and the FS9100/SVC native           *
  * capacity metrics that are reported by the devices            *
  * themselves.                                                  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• The fix for this APAR is targeted for the following release:
  
  IBM Storage Insights 2Q20   [ 5.3.7-IBM-SC ]
  IBM Spectrum Control 5.3.7   [ 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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