Applies to ONTAP 9 FAS/AFF systems Automated Nondisruptive ONTAP Upgrade(ANDU) Issue During ANDU pre-update check system is reporting warning alert regarding Cluster/Management switch compatibility. E...Applies to ONTAP 9 FAS/AFF systems Automated Nondisruptive ONTAP Upgrade(ANDU) Issue During ANDU pre-update check system is reporting warning alert regarding Cluster/Management switch compatibility. Ensure that the cluster network switches, storage network switches, IOS (management network switches) software and reference configuration file (RCF) versions are compatible with the target Data ONTAP release.