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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.
    • 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.
    • 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)
    • SnapCenter restore fails using RDM disks
      https://kb.netapp.com/data-mgmt/SnapCenter/SC_KBs/SnapCenter_restore_fails_using_RDM_disks
      Applies to SnapCenter Server (SC) SnapCenter Plug-in for Microsoft SQL Server (SCSQL) SnapCenter Plug-in for Exchange (SCE) SnapCenter Plug-in for VMware vSphere (SCV) RDM/VMDK disks Issue Restore fai...Applies to SnapCenter Server (SC) SnapCenter Plug-in for Microsoft SQL Server (SCSQL) SnapCenter Plug-in for Exchange (SCE) SnapCenter Plug-in for VMware vSphere (SCV) RDM/VMDK disks Issue Restore fails with the error seen in the Job Details: Restore failed: Details: Error: No resources mounted from snapshot for restore The RDM disks are shown as Dedicated in SC UI Disks view. No connection with SCV from SC.
    • "fp.est.scan.start.failed" error is reported on a RW volume
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/fp_est_scan_start_failed_error_is_reported_on_a_RW_volume
      Applies to ONTAP 9 All-Flash FAS (AFF) Temperature Sensitive Storage Efficiency (TSSE) Event Messaging System (EMS) Issue Following error is observed repeatedly in the EMS log: Tue Oct 08 14:32:12 +08...Applies to ONTAP 9 All-Flash FAS (AFF) Temperature Sensitive Storage Efficiency (TSSE) Event Messaging System (EMS) Issue Following error is observed repeatedly in the EMS log: Tue Oct 08 14:32:12 +0800 [CLUSTER-01:scan_tsse_wkr: fp.est.scan.start.failed:error]: Volume footprint estimator scan fails to start on "VOL1" - CDE disabled
    • Disks cannot be used due to they are part of a stale aggregate
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/Disks_cannot_be_used_due_to_they_are_part_of_a_stale_aggregate
      Applies to ONTAP 9 Issue When trying to create an aggregate, the disks that are part of the stale aggregate cannot be choosen to create the new aggregate. The stale aggregate appears in sysconfig -r o...Applies to ONTAP 9 Issue When trying to create an aggregate, the disks that are part of the stale aggregate cannot be choosen to create the new aggregate. The stale aggregate appears in sysconfig -r output. The output of storage aggregate show does not display the stale aggregate. It is not possible to use, delete, or modify the stale aggregate.