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Client has iSCSI connection failure with scsid: Login authentication failed
https://kb.netapp.com/on-prem/solidfire/Element_OS_Kbs/Client_has_iSCSI_connection_failure_with_scsid__Login_authentication_failed
./sf-slice.info.5:2020-XX-XXT10:35:41.602649Z node10 sliceXXX[31936]: [ISCSI] 2109 TSSocket-185 iscsitarget/ISCSISession.cpp:391:~ISCSISession|srcid=1634 reqid=0 Destroyed { sessionID=794568951394 cid..../sf-slice.info.5:2020-XX-XXT10:35:41.602649Z node10 sliceXXX[31936]: [ISCSI] 2109 TSSocket-185 iscsitarget/ISCSISession.cpp:391:~ISCSISession|srcid=1634 reqid=0 Destroyed { sessionID=794568951394 cid=0 sessionMSec=6584574325 loginMSec=6 initiatorName=iqn.XXXX-XX.com.redhat:XXXX initiatorPortal=XXX.XXX.XXX.XXX:58336 isid=9613345279 sessionType=Normal targetName=iqn.XXXX-XX.com.solidfire:XXXX.XXXXX-XXXX-XXX-XXXX-XXXX-XXXX.XXXX targetPortal=XXX.XXX.XXX.XXX:3260 initiatorAccess=AllowedByAccount re…
Why does my AltaVault ssh or web gui connection take too long to respond?
https://kb.netapp.com/Legacy/AltaVault/Why_does_my_AltaVault_ssh_or_web_gui_connection_take_too_long_to_respond
Applies to NetApp Cloud Backup Service (formerly AltaVault) Remote Authentication Dial-In User Service (RADIUS) Answer You may have a RADIUS authentication server configured on the Altavault, and it i...Applies to NetApp Cloud Backup Service (formerly AltaVault) Remote Authentication Dial-In User Service (RADIUS) Answer You may have a RADIUS authentication server configured on the Altavault, and it is currently unreachable or unresponsive. Additional Information For more information on radius configuration, see NetApp® AltaVault™ Cloud Integrated Storage 4.4
Latency induced by CPU N-Blade/Network on SAN datastores
https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/Latency_induced_by_CPU_N_Blade_Network_on_ISCSI_datastores
Applies to ONTAP 9 ISCSI Protocol FC Protocol Issue Concern of potential impact caused by latency induced from CPU N-blade or network layer on SAN volumes.
ESXi FCoE hosts cannot access volumes however paths are visible
https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/ESXi_FCoE_hosts_cannot_access_volumes_however_paths_are_visible
FCoE VMware ESXi LUN paths visible but vCenter ESXi in different location cannot access the datastore using Fibre Channel over Ethernet (FCoE) Output of command esxcli storage core device list Status ...FCoE VMware ESXi LUN paths visible but vCenter ESXi in different location cannot access the datastore using Fibre Channel over Ethernet (FCoE) Output of command esxcli storage core device list Status : degraded ( means single path ) Note: "unknown" means ESXi does not recognize the state of the device or "off" may indicate Permanent Device Loss (PDL) Output of vmkwarning.log while trying to access LUN cpu12:123)WARNING: Partition: 123: Partition table read from device naa.xyz failed: I/O error
Network interface migrate fails when moving SVM to new vLAN in ONTAP 9
https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Network_interface_migrate_fails_when_moving_SVM_to_new_vLAN_in_ONTAP_9
Applies to ONTAP 9.X Issue Error received when attempting to run network interface modify fails: Error: command failed: Port must reside in the same IPspace as the vserver of the Lif.
ONTAPClusterCreateTimedOut: ONTAP cluster create timed out
https://kb.netapp.com/on-prem/ontap/ontap-select/Select-KBs/ONTAPClusterCreateTimedOut__ONTAP_cluster_create_timed_out
When moving the cluster-mgmt LIF to another port (e0b) its IP can be pinged, but when moving it back to the default port (e0a) Ping will fail again. When shutting down the first nodes (where the clust...When moving the cluster-mgmt LIF to another port (e0b) its IP can be pinged, but when moving it back to the default port (e0a) Ping will fail again. When shutting down the first nodes (where the cluster-mgmt LIF is home) node-mgmt LIF, the cluster-mgmt LIF is pingable. When bringing the node-mgmt LIF online again, nothing changes in terms of the cluster-mgmt LIFs reachability, but the node-mgmt LIF is now no longer pingable.
Broadcast domain unreachable after switch suspends VLAN
https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Broadcast_domain_unreachable_after_switch_suspends_VLAN
Applies to ONTAP 9 Virtual LAN (VLAN) Issue The following message is reported in EMS: vifmgr.reach.noreach:notice]: Network port e10a on node node1 cannot reach its expected broadcast domain Default:v...Applies to ONTAP 9 Virtual LAN (VLAN) Issue The following message is reported in EMS: vifmgr.reach.noreach:notice]: Network port e10a on node node1 cannot reach its expected broadcast domain Default:vlan1. No other broadcast domains appear to be reachable from this port On the switch, the following error is seen (or similar): %ETHPORT-3-IF_ERROR_VLANS_SUSPENDED: VLANs 1,2 on Interface port-channel1 are being suspended. (Reason: invalid argument to function call)
During periods of high traffic, what is an acceptable percentage of discarded packets in ONTAP?
https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/During_periods_of_high_traffic_what_is_an_acceptable_percentage_of_discarded_packets_in_ONTAP
Applies to ONTAP 9 Data ONTAP 8 Data ONTAP operating in 7-Mode Answer Generally, discarded packets below 0.1% of the total traffic should not substantially affect service. Additional Information A hig...Applies to ONTAP 9 Data ONTAP 8 Data ONTAP operating in 7-Mode Answer Generally, discarded packets below 0.1% of the total traffic should not substantially affect service. Additional Information A high volume of traffic can lead bus overruns causing some packets to be discarded. This does not always have a noticeable impact on the environment. More information can be found in our KB article on Troubleshooting Ethernet Network Ports in ONTAP using ifstat. Why does packet loss impact performance?
AutoSupport Message: Network interface eth down or cable is unplugged
https://kb.netapp.com/Legacy/NetApp_HCI/Hardware/AutoSupport_Message__Network_interface_eth_down_or_cable_is_unplugged
KB contains the cause and solution when the "AutoSupport message Network interface eth down or cable is unplugged" is seen for NetApp Element software, NetApp HCI storage nodes and NetApp SolidFire st...KB contains the cause and solution when the "AutoSupport message Network interface eth down or cable is unplugged" is seen for NetApp Element software, NetApp HCI storage nodes and NetApp SolidFire storage nodes
Failed to add a cluster to ActiveIQ UM because of network issues
https://kb.netapp.com/data-mgmt/AIQUM/AIQUM_Kbs/Failed_to_add_a_cluster_to_ActiveIQ_UM_because_of_network_issues
Adding a cluster to UM fails with error Unable to add cluster data source. This can occur if the clocks on the systems are not synchronized and the Active IQ Unified Manager HTTPS certificate start da...Adding a cluster to UM fails with error Unable to add cluster data source. This can occur if the clocks on the systems are not synchronized and the Active IQ Unified Manager HTTPS certificate start date is later than the date on the cluster, or if the cluster has reached the maximum number of EMS notification destinations. The error is not related to NTP or time issues The error is not related to the HTTPS certificate The error is not related to the maximum number of EMS notifications
Why does throughput not exceed ~125 MBps on a 1 Gbps port?
https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Why_does_throughput_not_exceed_125_MBps_on_a_1_Gbps_port
Applies to ONTAP 9 Clustered Data ONTAP ONTAP 7-mode Answer One Giga Bits Per Second (Gbps) port is limited to 125 Mega Bytes Per Second (MBps) throughput Additional Information What is the theoretica...Applies to ONTAP 9 Clustered Data ONTAP ONTAP 7-mode Answer One Giga Bits Per Second (Gbps) port is limited to 125 Mega Bytes Per Second (MBps) throughput Additional Information What is the theoretical maximum throughput of a Gigabit Ethernet interface?