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OpenStack Cinder Fails to Provision New Volumes on NetApp Storage When LUN Limit is Reached (1024 LUNs per Volume)

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Applies to

  • OpenStack Cinder with NetApp drivers (iSCSI/FC)
  • Environments: Using NetApp as a Cinder backend

Issue

  • When using OpenStack with NetApp as a Cinder backend, VM creation and Cinder snapshot operations fail once a NetApp volume reaches the maximum supported LUN count (1024 per volume).
  • This results in downtime or inability to provision new VMs or Cinder snapshots.

ERROR cinder.volume.manager [..] Failed to create LUN: Maximum LUN count reached on volume vol_lun_issue

 

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