Ace the NetApp Data ONTAP 8.0 NS0-154 in 2026 – Master 7-Mode like a Pro!

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What should you do first to resolve a clustered failover issue where NFS operations fail during takeover but work after giveback?

Replace the NIC adapter.

Submit a new bug report.

Use the cluster-config-checker.cgi to identify the problem and corrective action.

Start by diagnosing the configuration with the cluster-config-checker.cgi tool. This built-in diagnostic scans the cluster interconnect and overall configuration to reveal misconfigurations and points you to the corrective actions you should take. When NFS operations fail during takeover but work after giveback, the root cause is often configuration or interconnect issues rather than a hardware fault. The checker surfaces the exact problem and the recommended fixes—such as interconnect settings, MTU, or switch port configurations—allowing you to correct the setup before considering hardware replacements or submitting reports. Only move to hardware changes or bug reporting if the checker points to a hardware-related issue or the problem persists after applying its recommendations.

Replace the cluster interconnect card and run diagnostics all to ensure proper operation.