IT45971: HOURLY USED CAPACITY DATA NOT AVAILABLE FOR DS8000 STORAGE SYSTEMS

APAR status

• Closed as program error.

Error description

• When viewing Used Capacity data for DS8000 in Storage Insights,
  the hourly data is not available at the storage system level.
  Only daily capacity data is available when the data resolution
  is configured for hourly or sample.  The hourly data can be
  observed at the pool level but should be available for both.
  
  There is a rare issue with the hourly-to-daily aggregation
  process,
  specifically when the aggregation process overlaps the probe.
  As a result, the hourly-aggregated data cannot be read into the
  daily aggregation for capacity.
  
  For example, storage device "A" has a daily probe that runs at
  approximately 19:00. The subsequent hourly aggregation occurs
  at 19:30, and the hourly aggregation data is available after it
  has
  been processed. However, the daily aggregation also runs at
  19:30, which means it cannot read the last hourly aggregation
  which kicked off at 19:30. Additionally, if the mini-probe for
  device
  "A" is not running, there is only the single daily probe data
  point
  for device "A", and it is not included in the daily aggregation.
  
  Consequently, there is no daily capacity aggregation.
  

Local fix

• If you are concerned this may occurring, contact IBM Support for
  
  assistance to confirm this diagnosis.  The solution Is to
  schedule
  the daily probe at a time which does not overlap the aggregation
  
  process.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Storage Insights users monitoring DS8000 storage         *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * When viewing Used Capacity data for DS8000 in Storage        *
  * Insights, the hourly data is not available at the storage    *
  * system level.                                                *
  *                                                              *
  * Only daily capacity data is available when the data          *
  * resolution is configured for hourly or sample.  The hourly   *
  * data can be observed at the pool level but should be         *
  * available for both.                                          *
  *                                                              *
  * There is a rare issue with the hourly-to-daily aggregation   *
  * process, specifically when the aggregation process           *
  * overlaps the probe. As a result, the hourly-aggregated       *
  * data cannot be read into the daily aggregation for capacity. *
  *                                                              *
  * For example, storage device "A" has a daily probe that runs  *
  * at approximately 19:00. The subsequent hourly aggregation    *
  * occurs at 19:30, and the hourly aggregation data is          *
  * available                                                    *
  * after it has been processed. However, the daily aggregation  *
  * also runs at 19:30, which means it cannot read the last      *
  * hourly                                                       *
  * aggregation which kicked off at 19:30. Additionally, if the  *
  * mini-probe for device "A" is not running, there is only the  *
  * single                                                       *
  * daily probe data point for device "A", and it is not         *
  * included in                                                  *
  * the daily aggregation.                                       *
  *                                                              *
  * Consequently, there is no daily capacity aggregation.        *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• The fix for this APAR is targeted for the following release:
  
  IBM Storage Insights 3Q24   [ 54X-IBM-SI ]
  ( release target 3Q 2024 / July )
  
  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