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    • How to diagnose an offline E-Series controller
      https://kb.netapp.com/on-prem/E-Series/Hardware-KBs/How_to_diagnose_an_offline_E-Series_controller
      This article describes how to diagnose and troubleshoot E-Series controller when offline for remote support
    • How to collect an IOC dump on E-Series systems
      https://kb.netapp.com/on-prem/E-Series/Management-Apps-KBs/How_to_collect_an_IOC_dump_on_E-Series_systems
      Applies to All E-Series firmware All E-Series platforms Description Procedure for collecting a Qlogic IOC dump MEL event below indicates a HIC reset and IOC dump has occurred The dump can be analyzed ...Applies to All E-Series firmware All E-Series platforms Description Procedure for collecting a Qlogic IOC dump MEL event below indicates a HIC reset and IOC dump has occurred The dump can be analyzed by NetApp Support to determine cause/next steps Ex: 12/1/20 10:30:59 PM (22:30:59) 19291 9001 IOC Data Captured - Host-side: controller in bay B, port 6
    • How to modify volume WWN on E-Series using vdmSetWWN
      https://kb.netapp.com/on-prem/E-Series/SANtricity-OS-KBs/How_to_modify_volume_WWN_on_E-Series_using_vdmSetWWN
      Applies to NetApp SANtricity OS Description Volume WWN (World Wide Name) has changed and volume access is lost Host side disk re-signature not feasible Volume WWN can be modified to previous value wit...Applies to NetApp SANtricity OS Description Volume WWN (World Wide Name) has changed and volume access is lost Host side disk re-signature not feasible Volume WWN can be modified to previous value with Support assistance.