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    • CPU Starvation Detected:rdb.node.starvation
      https://kb.netapp.com/Cloud/BlueXP/Cloud_Manager/CPU_Starvation_Detected_rdb_node_starvation
      Applies to Azure CVO Issue CPU starvation reported for all the mhost processes.
    • What is the upgrade matrix for storage clusters running NetApp Element software?
      https://kb.netapp.com/on-prem/solidfire/Element_OS_Kbs/What_is_the_upgrade_matrix_for_storage_clusters_running_NetApp_Element_software
      Find the version that your storage cluster is currently running in the first column to know the target Element versions the cluster can be upgraded to. If you are upgrading form Element 11.0 or 11.1, ...Find the version that your storage cluster is currently running in the first column to know the target Element versions the cluster can be upgraded to. If you are upgrading form Element 11.0 or 11.1, you must first upgrade to Element 12.3 using HealthTools and then upgrade to Element 12.5 using NetApp Hybrid Cloud Control. 10.4.x †^, 10.5.x †^ , 10.6.x †^ , 11.0.x †^ , 11.1.x^, 11.3P1, 11.3.2, 11.5.x^, 11.7, 11.8.x ^
    • What are the impacts of temporarily shutting down mNode?
      https://kb.netapp.com/on-prem/solidfire/Element_OS_Kbs/What_are_the_impacts_of_temporarily_shutting_down_mNode
      The impacts of temporarily shutting down mNode are as follows: Data for system monitoring is not sent to SolidFire Active IQ until mNode is started SolidFire Active IQ triggers Cluster not reporting a...The impacts of temporarily shutting down mNode are as follows: Data for system monitoring is not sent to SolidFire Active IQ until mNode is started SolidFire Active IQ triggers Cluster not reporting alert if mNode is down for more than 30 minutes Hybrid Cloud Control (HCC) is not available until mNode is started NetApp Element Plug-in for VMware vCenter Server (VCP) is not available until mNode is started Element Cluster has not reported to Active IQ in over 30 minutes
    • EOL/Obsolete Software:SNMP protocol version 1/2C detected
      https://kb.netapp.com/Legacy/Brocade_Legacy/SNMP_protocol_version_1_2C_detected
      Applies to ONTAP 9 Simple Network Management Protocol (SNMP) Issue Scanner flags EOL/Obsolete Software: SNMP Protocol Version 1/2c Detected.
    • The interface group is in a degraded state with flapping member ports
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/The_interface_group_is_in_a_degraded_state_with_flapping_member_ports
      The interface group is in a degraded state. [Node1: intr: net.ifgrp.lacp.link.active:error]: ifgrp a0a, port e0f has transitioned to an active state. [Node1: vifmgr: vifmgr.port.monitor.passed:notice]...The interface group is in a degraded state. [Node1: intr: net.ifgrp.lacp.link.active:error]: ifgrp a0a, port e0f has transitioned to an active state. [Node1: vifmgr: vifmgr.port.monitor.passed:notice]: The "link_flapping" health check for port a0a (node Node1) has passed. [Node1: vifmgr: vifmgr.port.monitor.failed:error]: The "link_flapping" health check for port a0a (node Node1) has failed. The port is operating in a degraded state.
    • Troubleshooting Workflow: MHost RDB apps out of quorum
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/Troubleshooting_Workflow__MHost_RDB_apps_out_of_quorum
      Additionally, one site might be designated as holding 'epsilon' - an extra partial vote that allows quorum to form with only half the sites. 'Epsilon' is not the same as 'master'. In the two-node HA m...Additionally, one site might be designated as holding 'epsilon' - an extra partial vote that allows quorum to form with only half the sites. 'Epsilon' is not the same as 'master'. In the two-node HA mode, _sitelist contains the HA_CONFIG attribute; this implies that completely different rules are in effect for quorum handling. The typical technique is to cat the /var/rdb/_sitelist, then use the rdb_dump tool to investigate by directing it at the IP addresses of interest (or at localhost).
    • High CPU utilization and performance imbalance alerts
      https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/High_CPU_utilization_and_performance_imbalance_alerts
      Frequent performance imbalance alerts on one node Event: Cluster Load Imbalance Threshold Breached The performance capacity used counter indicates a load difference of 74% between the nodes on cluster...Frequent performance imbalance alerts on one node Event: Cluster Load Imbalance Threshold Breached The performance capacity used counter indicates a load difference of 74% between the nodes on cluster XXX-XXX-XXX and has triggered a WARNING event based on the system threshold of 30% CPU utilization at 70+ % constantly despite Low IOPS Top CPU domain was Host OS , mostly from mgwd from the output of top command PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
    • Unable to access shares using SMB1
      https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Unable_to_access_shares_using_SMB1
      Nblade.noSmbVerNegotiated: For Vserver "vserver", Data ONTAP(R) could not negotiate with the client "192.168.139.61" because it does not support any of the SMB protocol versions that the client sent i...Nblade.noSmbVerNegotiated: For Vserver "vserver", Data ONTAP(R) could not negotiate with the client "192.168.139.61" because it does not support any of the SMB protocol versions that the client sent in the list "<PC NETWORK PROGRAM 1.0;LANMAN1.0;Windows for Workgroups 3.1a;LM1.2X002;LANMAN2.1;NT LM 0.12>".​​​​​ The FlexCache volume is always a FlexGroup volume, and not a FlexVol volume, you can only have a FlexCache volume as the origin volume.
    • Does SMB sigining work in Workgroup mode?
      https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Does_SMB_sigining_work_in_Workgroup_mode
      Applies to ONTAP 9 SMB2 and later Answer ONTAP always advertises signing capability and it will be available with both, domain users and local users Note: Local users are users which data is stored on...Applies to ONTAP 9 SMB2 and later Answer ONTAP always advertises signing capability and it will be available with both, domain users and local users Note: Local users are users which data is stored on the vserver cifs config Additional Information The -is-signing-required parameter in vserver security commands does not enable signing per se, but enables the requirement that the client signs its requests Example with the parameter disabled: Example with the parameter enabled:
    • Cloud mirror replication target complains about new buckets after upgrading to 11.8
      https://kb.netapp.com/hybrid/StorageGRID/Grid_Tenant_Manager/Cloud_mirror_replication_target_complains_about_new_buckets_after_upgrading_to_11.8
      Applies to NetApp StorageGRID 11.8 Issue After upgrading StorageGRID, an existing cloud mirror replication target reports "new bucket" errors. From Platform Services Endpoints, a / can be seen at the ...Applies to NetApp StorageGRID 11.8 Issue After upgrading StorageGRID, an existing cloud mirror replication target reports "new bucket" errors. From Platform Services Endpoints, a / can be seen at the end of the URI Example:
    • Stall at the end of a file copy to a FlexCache in write-back mode with File Explorer
      https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Stall_at_the_end_of_a_file_copy_to_a_FlexCache_in_write-back_mode_with_File_Explorer
      Applies to ONTAP 9 FlexCache Write-back mode Issue There is a stall in the file copy using File Explorer with "Time remaining" displaying "About 5 seconds" when the file has one or more alternate data...Applies to ONTAP 9 FlexCache Write-back mode Issue There is a stall in the file copy using File Explorer with "Time remaining" displaying "About 5 seconds" when the file has one or more alternate data streams (ADS)