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    • disk shelf reporting as Critical due to a loose power cable
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/disk_shelf_reporting_as_Critical_due_to_a_loose_power_cable
      Critical fault and PSU error are reported against a newly installed shelf. DS460-12 (S/N xxxxxxxxx) shelf 10 on channel 0b power error for Power supply 1: critical status; AC Fail. This module is on t...Critical fault and PSU error are reported against a newly installed shelf. DS460-12 (S/N xxxxxxxxx) shelf 10 on channel 0b power error for Power supply 1: critical status; AC Fail. This module is on the rear of the shelf at the top middle. [ClusterA: dsa_worker4: callhome.shlf.power.intr:error]: Call home for SHELF POWER INTERRUPTED Shelf: 10 Shelf Type: DS460-12 Power Supplies: 1: CRITICAL 02,00,00,F3 DC FAIL, AC FAIL, OFF, RQSTED ON, FAIL Element Status Status Bytes Status Descriptions
    • How to identify which disk on a FAS/FlexArray maps to a corresponding E-series volume
      https://kb.netapp.com/on-prem/E-Series/Management-Apps-KBs/How_to_identify_which_disk_on_a_FAS_FlexArray_maps_to_a_corresponding_E_series_volume
      Applies to • E-series • FlexArray • V-series • FAS Description Some FlexArray setups will have virtual disks which are being presented from a backend storage. The E-series system will present each vol...Applies to • E-series • FlexArray • V-series • FAS Description Some FlexArray setups will have virtual disks which are being presented from a backend storage. The E-series system will present each volume to the FAS system as a disk. In the event troubleshooting is needed against a specific FAS disk and which volume on E-series it corresponds to.
    • New Cisco Nexus 9336C-FX2 cluster switch is unsupported
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/New_Cisco_Nexus_9336C-FX2_cluster_switch_is_unsupported
      Applies to Cisco 9336C-FX2 ONTAP 9.1 - 9.4 ONTAP 9.5P1 - 9.5P15 ONTAP 9.6P1 - 9.6P11 ONTAP 9.7P1 - 9.7P9 Issue Cisco Nexus 9336C-FX2 showing as unsupported: HA Group Notification (Health Monitor proce...Applies to Cisco 9336C-FX2 ONTAP 9.1 - 9.4 ONTAP 9.5P1 - 9.5P15 ONTAP 9.6P1 - 9.6P11 ONTAP 9.7P1 - 9.7P9 Issue Cisco Nexus 9336C-FX2 showing as unsupported: HA Group Notification (Health Monitor process cshm: UnsupportedSwitch_Alert[Switch_Name]) ALERT CSHM-SWITCH-CONFIG.XML autosupport shows the switches as Unsupported Model System health alert for Unsupported cluster switch is detected
    • "SwitchFanNotPresent_Alert reported" by CSHM for Cisco cluster network switches
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/SwitchFanNotPresent_Alert_reported_by_CSHM_for_Cisco_cluster_network_switches
      The following “SwitchFanNotPresent_Alert” is reported by CSHM for all the fan modules of the cluster network switch: The cluster switch health monitor (CSHM) can only detect that a fan or a power supp...The following “SwitchFanNotPresent_Alert” is reported by CSHM for all the fan modules of the cluster network switch: The cluster switch health monitor (CSHM) can only detect that a fan or a power supply is missing when the queries to the switch fail to return information about all the fans or power supplies. Login to both the cluster switches and verify if all the fan modules are operating in good condition, by running the following command:
    • How to determine if an AFF or FAS model supports an external USB device
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/How_to_determine_if_an_AFF_or_FAS_model_supports_an_external_USB_device
      Applies to ONTAP 9 AFF A700, AFF A700s, AFF A300, AFF A200 and later models FAS9000, FAS8200, FAS2650, FAS2620 and later models Description Most AFF and FAS hardware models have one or more USB Type A...Applies to ONTAP 9 AFF A700, AFF A700s, AFF A300, AFF A200 and later models FAS9000, FAS8200, FAS2650, FAS2620 and later models Description Most AFF and FAS hardware models have one or more USB Type A ports. However, not all models support use of that port for external USB devices for use with activities such as boot_recovery or coredump saving. This support was added with AFF and FAS models introduced with ONTAP 9.1.
    • A false "SwitchFanNotPresent_Alert" message is reported by Cluster Health Monitor
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/False_SwitchFanNotPresent_Alert_alert_is_reported_by_Health_Monitor
      Applies to ONTAP 9 Issue Despite no issues seen on cluster switches, following AutoSupport alert messages are received: Call home for Health Monitor process cshm: SwitchFanNotPresent_Alert
    • How to reboot a cluster interconnect switch
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/How_to_reboot_a_cluster_interconnect_switch
      Applies to ONTAP Cluster interconnect switches NetApp CN1610 Broadcom BES-53248 Cisco Nexus 3132Q-V Cisco Nexus 3232C Cisco Nexus 5596 Cisco Nexus 92300YC Cisco Nexus N9K-C9336C-FX2 Description How to...Applies to ONTAP Cluster interconnect switches NetApp CN1610 Broadcom BES-53248 Cisco Nexus 3132Q-V Cisco Nexus 3232C Cisco Nexus 5596 Cisco Nexus 92300YC Cisco Nexus N9K-C9336C-FX2 Description How to reboot a cluster interconnect switch.
    • Health monitor 'MixOfIOMAandIOMBConnection_Alert'
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Health_monitor_MixOfIOMAandIOMBConnection_Alert
      Applies to AFF and FAS systems Issue Health monitor raised an alert with Alert Id = 'MixOfIOMAandIOMBConnection_Alert' Example: Mon May 18 17:11:29 CEST [NETAPP-01: nchmd: hm.alert.raised:alert]: Aler...Applies to AFF and FAS systems Issue Health monitor raised an alert with Alert Id = 'MixOfIOMAandIOMBConnection_Alert' Example: Mon May 18 17:11:29 CEST [NETAPP-01: nchmd: hm.alert.raised:alert]: Alert Id = MixOfIOMAandIOMBConnection_Alert , Alerting Resource = 265470534849464912:3 raised by monitor node-connect
    • Node reports StorageFCAdapterFault_Alert for down or unused FC ports
      https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/Node_reports_StorageFCAdapterFault_Alert_for_down_or_unused_FC_ports
      FC ports in initiator mode The node sends AutoSupport alerts for StorageFCAdapterFault for down FC ports after every reboot. The reported port is not in use. The Metrocluster_Node subsystem health get...FC ports in initiator mode The node sends AutoSupport alerts for StorageFCAdapterFault for down FC ports after every reboot. The reported port is not in use. The Metrocluster_Node subsystem health gets degraded: cluster::> system health subsystem show Probable Cause: FC initiator adapter 4d is at fault. Ensure that the FC initiator link has not been tampered with. Verify the operational status of the FC initiator adapter by using the command "system node run -node
    • FlexArray controller reboot after disk failure on E-Series back-end
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/FlexArray_controller_reboot_after_disk_failure_on_E-Series_back-end
      Applies to FlexArray/V-Series E-Series ONTAP 9 Issue FAS controller reboots after disk failure on E-Series back-end.
    • Alternate control path hardware failed alert reported in event logs
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Alternate_control_path_hardware_failed_alert_reported_in_event_logs
      Applies to FAS with Inband ACP (Alternate Control Path) AFF with Inband ACP Issue ACP hardware failure is reported in the event logs: Fri Oct 25 11:10:26 CEST [nodename: dsa_worker5: ses.status.ACPErr...Applies to FAS with Inband ACP (Alternate Control Path) AFF with Inband ACP Issue ACP hardware failure is reported in the event logs: Fri Oct 25 11:10:26 CEST [nodename: dsa_worker5: ses.status.ACPError: alert]: DS2246 (S/N xxxxxxxxxxxxxxx) shelf 0 on channel 0a ACP Processor error for SAS shelf ACP processor 2: critical status; Alternate Control Path hardware failed This module is on the rear of the shelf at the top right, on shelf module B.