IBM System Storage Ideas Portal


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Status Under review
Workspace IBM Storage Virtualize / FlashSystem
Created by Guest
Created on Jul 21, 2026

RELATED IDEAS

Allow dynamic addition and removal of WWPNs for hosts assigned to PBHA storage partitions

IBM FlashSystem currently does not allow administrators to add or remove host ports/WWPNs when the host is assigned to a storage partition used with Policy-Based High Availability (PBHA).

This limitation creates a significant operational risk in production environments. Common infrastructure operations require host WWPNs to be updated, including:

  • Replacement of a failed Fibre Channel HBA.
  • NPIV adapter replacement or reconfiguration.
  • Addition of new Fibre Channel paths.
  • LPM host configuration changes on IBM Power systems.
  • SAN migration, rezoning, or hardware refresh activities.
  • Correction of an incorrectly configured WWPN.

In our environment, IBM Power/AIX host clusters contain both the normal AIX host and its corresponding LPM host. The LPM host becomes active when the workload is migrated through the HMC. Therefore, host WWPNs may need to be added or updated dynamically without shutting down the production workload.

Idea priority Urgent
  • Guest
    Aug 6, 2026

    Duplicate https://ideas.ibm.com/ideas/SCSI-I-1424

    Reply

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