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What happens in a MetroCluster IP when all backend ISLs are down/fail

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Applies to

  • MetroCluster IP
  • ONTAP 9

Answer

  • Data will be still provided from the local nodes
  • NVRAM and aggregate mirroring is not possible
  • Backend communication using TCP, if there are corrupted or lost frames in transit, they will be discarded and retried
  • After at least one ISL is restored, data will be automatically resynchronized

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