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    • FAQ: NVMe Flash Cache module firmware update
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/FAQ__NVMe_Flash_Cache_module_firmware_update
      Unlike previous iterations of Flash Cache where FW was available with system firmware, the NVMe Flash Cache FW is available on the NetApp Support Site Drive Firmware Page as part of the All FW package...Unlike previous iterations of Flash Cache where FW was available with system firmware, the NVMe Flash Cache FW is available on the NetApp Support Site Drive Firmware Page as part of the All FW package or as individual downloads. Unlike storage HDD or SSD firmware, there are no messages indicating that "firmware will now be updated". However, there are three EMS events that are logged in ONTAP 9.1 or later that track completion of the firmware update:
    • AFF C190, AFF A200, FAS2750, AFF A800 attention LED ON, Set by Expander/BMC
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/AFF_C190_AFF_A200_FAS2750_AFF_A800_attention_LED_ON_Set_by_Expander_BMC
      AFF C190 AFF A220 AFF A800 FAS2750 Controller attention LED on. BMC output of AFF A800 of command system fru led show all will report FRU LED ID 1 is on FRU LED ID 3 is on. FRU LED ID 4 is off BMC out...AFF C190 AFF A220 AFF A800 FAS2750 Controller attention LED on. BMC output of AFF A800 of command system fru led show all will report FRU LED ID 1 is on FRU LED ID 3 is on. FRU LED ID 4 is off BMC output of AFF C190, AFF A200, FAS2750 command system fru led show all will report BMC node_name> system fru led show all FRU LED ID 1 is off FRU LED ID 2 is on. Set by Expander/BMC FRU LED ID 3 is off FRU LED ID 4 is on FRU LED ID 5 is off FRU LED ID 6 is off FRU LED ID 7 is off FRU LED ID 8 is off
    • UTA2/FC Ports Will Not Come Online With Direct Attached Tape Libraries
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/FAS2750_FC_port_won_t_come_online_with_a_direct_attached_tape_drive
      Applies to Any FC or UTA2 adapter capable of operating at 16Gb/s or greater AFF series FAS series Issue Onboard CNA/FC ports will not come online with a tape drive direct attached despite the ports be...Applies to Any FC or UTA2 adapter capable of operating at 16Gb/s or greater AFF series FAS series Issue Onboard CNA/FC ports will not come online with a tape drive direct attached despite the ports being configured for the proper personality
    • "(CHASSIS POWER DEGRADED: Power Supply Status Critical: PSU1, PSU2.) ERROR" AutoSupport message occurs
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/CHASSIS_POWER_DEGRADED__Power_Supply_Status_Critical__PSU1_PSU2_ERROR_AutoSupport_message_occurs
      AutoSupport is triggered that the chassis power supply are degraded. HA Group Notification from node-02 (CHASSIS POWER DEGRADED: Power Supply Status Critical: PSU1, PSU2.) ERROR [node-02: monitor: mon...AutoSupport is triggered that the chassis power supply are degraded. HA Group Notification from node-02 (CHASSIS POWER DEGRADED: Power Supply Status Critical: PSU1, PSU2.) ERROR [node-02: monitor: monitor.globalStatus.critical:EMERGENCY]: Power Supply Status Critical: PSU1, PSU2. [node-02: power_low_monitor: monitor.chassisPowerSupplies.ok:info]: Chassis power supplies OK [node-02: monitor: monitor.globalStatus.ok:info]: The system's global status is normal
    • FAS2750 down due to a power outage
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/FAS2750_down_due_to_a_power_outage
      Applies to After a power outage one node does not come back online system health alert show point out PSU2 issue cluster::> system health alert show Probable Cause: PSU2 FRU is off. The nodes in this ...Applies to After a power outage one node does not come back online system health alert show point out PSU2 issue cluster::> system health alert show Probable Cause: PSU2 FRU is off. The nodes in this chassis are Possible Effect: The system might switch off if the other redundant power supply units (PSUs) become faulty. Check PSU2 FRU and switch it on. Refer to the Hardware specification guide for more information on the position of the power supply unit (PSU) and ways to check or replace it.
    • Slow FlexCache performance with source FAS2750 and write-back enabled
      https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Slow_FlexCache_performance_with_source_FAS2750_and_write-back_enabled
      Applies to FAS2750 ONTAP 9 CIFS SnapMirror Issue A FAS2750 that is writing to multiple flex cache volumes that have write-back enabled are showing slow performance with CIFS access. Snapshots are not ...Applies to FAS2750 ONTAP 9 CIFS SnapMirror Issue A FAS2750 that is writing to multiple flex cache volumes that have write-back enabled are showing slow performance with CIFS access. Snapshots are not completing with error in EMS Snapshot copy (Snapshot operation could not be completed within the timeout window.).
    • DIMM mapped out with error 0x30 during boot on A300, A220, A200, FAS8200, FAS27xx, FAS26xx
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/DIMM_mapped_out_with_error_0x30_during_boot_on_A300_A220_A200_FAS8200_FAS27xx_FAS26xx
      Applies to AFF A300 AFF A220 AFF A200 FAS8200 After a reboot, the system fails to boot with the error DIMM:x mapped out with the error code 0x30. Error on boot: System DIMM configuration is not suppor...Applies to AFF A300 AFF A220 AFF A200 FAS8200 After a reboot, the system fails to boot with the error DIMM:x mapped out with the error code 0x30. Error on boot: System DIMM configuration is not supported on FAS2650 Please check the DIMM placement on SLOT-2 ... BIOS Version: 11.2.1 Portions Copyright (C) 2014-2018 NetApp, Inc. All Rights Reserved. Initializing System Memory ... DIMM:2 mapped out. BIOS MRC HW R/W test error. Major / Minor Error Code: 0x30 / 0x1C Complete channel mapped out.
    • AFF C190 loses configuration after boot device Panic
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/AFF_C190_loses_configuration_after_boot_device_Panic
      After a node panics due to the boot device becoming unreadable, the node loses configuration When attempting to boot the node after the panic, messages such as this are seen: [nv2flash.misc.dbg:NOTICE...After a node panics due to the boot device becoming unreadable, the node loses configuration When attempting to boot the node after the panic, messages such as this are seen: [nv2flash.misc.dbg:NOTICE]: nv2f_write_msg_to_flash: Failed to write flash at offset 0x55200 ret -1.Error on reading meta data header! WARNING: Failed to restore /var from /dev/nvrd1. ERROR: netapp_varfs: Failed to restore /var from /dev/nvrd1 after clean shutdown. The node boots into the cluster setup wizard:
    • Single cluster port down
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Single_cluster_port_down
      Applies to AFF-A150 FAS2750 2-node Switchless Cluster Issue Single cluster port is down ::> network port show Node: node_name Speed(Mbps) Health Port IPspace Broadcast Domain Link MTU Admin/Oper Statu...Applies to AFF-A150 FAS2750 2-node Switchless Cluster Issue Single cluster port is down ::> network port show Node: node_name Speed(Mbps) Health Port IPspace Broadcast Domain Link MTU Admin/Oper Status --------- ------------ ---------------- ---- ---- ----------- -------- a0a Default Default up 1500 auto/- healthy e0M Default Default up 1500 auto/1000 healthy e0a Cluster Cluster up 9000 auto/10000 healthy e0b Cluster Cluster down 9000 auto/- - e0c Default - up 1500 auto/10000 healthy
    • ONTAP fails to boot with "Failure to build endpoint environment variables" message
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/ONTAP_fails_to_boot_with_Failure_to_build_endpoint_environment_variables_message
      Autoboot fails; ONTAP fails to boot with Failure to build endpoint environment variables. Autoboot will be disabled; Bug 1187256