Applies to ONTAP 9 MetroCluster Description After troubleshooting port cyclic redundancy check (CRC) errors in SAN and SFP replacement Is it safe to carry out power maintenance with MetroCluster switc...Applies to ONTAP 9 MetroCluster Description After troubleshooting port cyclic redundancy check (CRC) errors in SAN and SFP replacement Is it safe to carry out power maintenance with MetroCluster switchover?