How to identify a failed disk prior to replacement   https://kb.netapp.com/Advice_and_Troubleshooting%2FData_Storage_Systems%2FFAS_Systems%2FHow_to_identify_a_failed_disk_prior_to_replacement   Note: If you are unable to view the entire content of this article please log in to kb.netapp.com ... View more

This article describes the procedure that should be performed to diagnose port issues in Clustered Data ONTAP.   https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/How_to_diagnose_port_issues_in_Clustered_Data_ONTAP   Note: If you are unable to view the entire content of this article please log in to kb.netapp.com   ... View more

Performance Archives: Performance First Failure Data Collection for clustered Data ONTAP 8.3 and later   https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/Performance_Archives%3A_Performance_first_failure_data_collection_for_Clustered_Data_ONTAP_8.3_and_later   Note: If you are unable to view the entire content of this article please log in to kb.netapp.com ... View more

How Data ONTAP Upgrade Advisor helps to perform a Data ONTAP upgrade or revert to an earlier version?   https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/How_Data_ONTAP_Upgrade_Advisor_helps_to_perform_a_Data_ONTAP_upgrade_or_revert_to_an_earlier_version%3F   Note: If you are unable to view the entire content of this article please log in to kb.netapp.com ... View more

Procedure to troubleshoot fault LEDs on various platforms   https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Systems/FAS_Systems/Procedure_to_troubleshoot_fault_LEDs_on_various_platforms   Note: If you are unable to view the entire content of this article please log in to kb.netapp.com ... View more