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    • Performing a lot of locks (NFSv3) causing higher latency
      https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/Performing_a_lot_of_locks_NFSv3_causing_higher_latency
      Applies to ONTAP 9 NFSv3 Locking Network Lock Manager (NLM) Issue High latency for NFSv3 volume with Locking Linear latency increase will seen in the monitoring tools vserver lock show command runs co...Applies to ONTAP 9 NFSv3 Locking Network Lock Manager (NLM) Issue High latency for NFSv3 volume with Locking Linear latency increase will seen in the monitoring tools vserver lock show command runs continuously for an extended timeframe and does not complete.
    • Error Nblade.nfsConnResetAndClose reported due to failed to Send NLM Response
      https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Error_Nblade.nfsConnResetAndClose_reported_due_to_failed_to_Send_NLM_Response
      Applies to ONTAP 9 NFSv3 Issue ONTAP Event log reports Nblade.nfsConnResetAndClose error and reason is Failed to Send NLM Response - Transient Error From SPINNP
    • How to troubleshoot basic lock issues with NAS protocols
      https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/How_to_troubleshoot_basic_lock_issues_with_NAS_protocols
      Applies to ONTAP 9 Description The below process describes what data to collect and review to determine proper steps in troubleshooting lock related issues for NAS protocols.
    • What does "Nblade.CallbackTimedOut" error from SM NOTIFY mean after node upgrade/reboot ?
      https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/What_does_Nblade_CallbackTimedOut_error_from_SM_NOTIFY_means_after_node_upgrade_reboot
      [?] Tue May 05 16:47:27 CEST [Cluster01-01: nblade2: Nblade.CallbackTimedOut:error]: SM NOTIFY: Vserver 11, Vif 1057: PORTMAP program (Program number:100000 Program version:2) on client 10.11.12.10 is...[?] Tue May 05 16:47:27 CEST [Cluster01-01: nblade2: Nblade.CallbackTimedOut:error]: SM NOTIFY: Vserver 11, Vif 1057: PORTMAP program (Program number:100000 Program version:2) on client 10.11.12.10 is not responding. Tue May 05 20:04:12 CEST [Cluster01-01: nblade2: Nblade.CallbackTimedOut:error]: SM NOTIFY: Vserver 11, Vif 1175: PORTMAP program (Program number:100000 Program version:2) on client 10.11.12.10 is not responding.