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OTV SRM Failover Fails with “Failed to promote replica devices” and VMs Unavailable at Both Sites

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virtual-storage-console-for-vmware-vsphere
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virt
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Applies to

  • NetApp ONTAP Tools for VMware vSphere (OTV) 10.x
  • VMware Site Recovery Manager (SRM) 9.x

Issue

During a scheduled disaster recovery (DR) failover using VMware SRM and ONTAP Tools for VMware (OTV) 10.4, the SRM failover operation fails with the error:

Failed to promote replica devices. A general system error occurred: N2Dr3Xml20XmlValidateExceptionEvalue '' does not match regular expression facet '[+\\-]?[0-9]+'

  • VMs are unavailable at both the source and destination sites post-failover.
  • vCenter shows only placeholder VMs; unable to power on VMs.
  • SRM/OTV logs show repeated SnapMirror state checks and timeouts.
  • Example OTV logs:

        "Not all snapmirror relationships are broken off. Retrying..."
        "Not all snapmirror reached desired state. Retrying GET..."

  • Failover attempts leave VMs offline, requiring restore from backup for recovery.

 

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