IT45657: STORAGE INSIGHTS DATA COLLECTOR FAILS TO PROCESS PERFORMANCE STATS FOR COPY1 VOLUMES IN POOLS WITHIN STRETCHED CLUSTER OF SVC.

APAR status

• Closed as documentation error.

Error description

• The customer is using Storage Insights to monitor a SVC device
  within a Stretched Cluster configuration. Unfortunately, there
  is no performance data for one storage pool of SVC device, even
  when reviewing data over the past year. However, other storage
  pools present complete performance data for that SVC device.
  Notably, Capacity monitoring functions correctly for the
  affected storage pool. This issue pertains specifically to the
  device that has been added through the data collector.
  
  There are two identical pools with the same volumes. One pool
  contains "copy0" volumes due to volume mirroring in the
  Stretched Cluster configuration, while the other pool consists
  of "copy1" volumes, representing mirrors of the "copy0" volumes
  in Storage Pool1. However, the storage pool with copy1 is
  having no performance monitoring data.
  
  To reproduce the issue:
   Navigate to the 'Block Storage Systems' tab.
   Drill down into the storage for the affected SVC device and
  double-click.
   Proceed to the Pools tab.
   For the affected Pool, click on the link to the volumes
  belonging to that pool; you will notice that the Copy ID value
  for all volumes is 1.
   Select one of the volumes, right-click, choose 'View
  Performance,' and observe NO Performance Monitoring data for
  that "copy1" volume.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Storage Insights users monitoring SVC device within a    *
  * Stretched Cluster configuration                              *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * The customer is using Storage Insights to monitor a SVC      *
  * device                                                       *
  * within a Stretched Cluster configuration. Unfortunately,     *
  * there                                                        *
  * is no performance data for one storage pool of SVC device,   *
  * even when reviewing data over the past year. However, other  *
  * storage pools present complete performance data for that SVC *
  *                                                              *
  * device.                                                      *
  * Notably, Capacity monitoring functions correctly for the     *
  * affected storage pool. This issue pertains specifically to   *
  * the                                                          *
  * device that has been added through the data collector.       *
  *                                                              *
  * There are two identical pools with the same volumes. One     *
  * pool                                                         *
  * contains "copy0" volumes due to volume mirroring in the      *
  * Stretched Cluster configuration, while the other pool        *
  * consists                                                     *
  * of "copy1" volumes, representing mirrors of the "copy0"      *
  * volumes                                                      *
  * in Storage Pool1. However, the storage pool with "copy1" is  *
  * having no performance monitoring data.                       *
  *                                                              *
  * To reproduce the issue:                                      *
  * - Navigate to the 'Block Storage Systems' tab.               *
  * - Drill down into the storage for the affected SVC device    *
  * and double-click.                                            *
  * - Proceed to the Pools tab.                                  *
  * - For the affected Pool, click on the link to the volumes    *
  * belonging to that pool; you will notice that the Copy ID     *
  * value for all volumes is 1.                                  *
  * - Select one of the volumes, right-click, choose             *
  * 'View Performance,' and observe no Performance Monitoring    *
  * data for that "copy1" volume.                                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• The fix for this APAR is targeted for the following release:
  
  IBM Storage Insights 2Q24   Ý 54X-IBM-SI ¨
  ( release target 2Q 2024 / April )
  
  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

Applicable component levels