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Performance

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Performance Resolution Guide
Start here to troubleshoot ONTAP 9 performance
Data Processing latency Resolution Guide
Troubleshoot Data Processing latency
Disk utilization and latency Resolution Guide
Troubleshoot FAS high disk latency or utilization
Other Resources
  • High CPU Alerts while running system controller replaceThu, 24 Apr 2025
  • Is there a tool available that can estimate IOPS for Cloud Volumes ONTAP?Wed, 23 Apr 2025
  • Oracle databases reports high response timeTue, 22 Apr 2025
  • Is it possible to monitor the performance of files?Fri, 18 Apr 2025
  • High latency with FlexGroup Granular Data Distribution and also CIFS MultichannelWed, 16 Apr 2025
  • How to view qos statistics on a FlexGroupTue, 15 Apr 2025
  • How is "data_busy" calculated?Tue, 15 Apr 2025
  • Does having a large number of Qtrees affect performance in ONTAP?Wed, 09 Apr 2025
  • CONTAP-399841: mgwd: assertion (index < _xLabels.size()) at src/cmr_zr_result.cc:111 failed, raising SIGABRT(6) at RIP 0x81f8ed71aMon, 07 Apr 2025
  • How to Verify if a QoS Policy is applied to an SVM, Volume, LUN, or fileThu, 03 Apr 2025
  • CONTAP-426568: iSCSI and FCP LUNs/SUs using QoS may become inaccessible after upgrade to 9.16.1Thu, 03 Apr 2025
  • FlexCache throughput is lower than expected when using e0M for communicationThu, 03 Apr 2025
  • high read thrgouhput in “sysstat” without client workloadTue, 01 Apr 2025
  • Slow Cloud Backup Service (CBS) during tiering in ONTAP 9.13.1 onwardsFri, 28 Mar 2025
  • CONTAP-414209: Stale QoS Workload entries after deletion of filesThu, 27 Mar 2025
  • High latency for SM-S primary volume due to intercluster networkMon, 17 Mar 2025
  • What is the guidance on the recommended values for Latency (ms) and IOPS?Fri, 14 Mar 2025
  • CONTAP-390616: page fault (supervisor write data, page not present) in SK process repl_Handle_low on release 9.16.1RC1Thu, 13 Mar 2025
  • CONTAP-46634: System Manager could not return performance data in Dashboard with new experienceThu, 13 Mar 2025
  • Low throughput due to low concurrencyMon, 10 Mar 2025
  • CONTAP-426568: iSCSI and FCP LUNs/SUs using QoS may become inaccessible after upgrade to 9.16.1Thu, 24 Apr 2025
  • CONTAP-390616: page fault (supervisor write data, page not present) in SK process repl_Handle_low on release 9.16.1RC1Thu, 24 Apr 2025
  • CONTAP-46634: System Manager could not return performance data in Dashboard with new experienceThu, 24 Apr 2025
  • CONTAP-70759: High Latency from QoS Min on workloads with no QoS Policy or not in Adaptive QoS policyThu, 24 Apr 2025
  • CONTAP-329466: '-system' parameter of 'statistics system show' command can only specify 'cluster' in practiceThu, 24 Apr 2025
  • CONTAP-314827: Improper QoS rate limiting during ONTAP upgradeThu, 24 Apr 2025
  • CONTAP-229260: intensive writes results with High CPU on All SAN ArrayThu, 24 Apr 2025
  • CONTAP-93354: Possible race condition while processing iscsi work itemThu, 24 Apr 2025
  • CONTAP-86314: “Unable to find the volume's uuid for volume" error message on MetroCluster nodesThu, 24 Apr 2025
  • CONTAP-109266: Metrics returning 404 Not Found when timeout happens with busy nodesThu, 24 Apr 2025
  • CONTAP-165550: Node panic due to SK process cmapl_mem_cleaner_thread_func on release 9.11.1P10Thu, 24 Apr 2025
  • CONTAP-126727: page fault due to invalid memory allocationThu, 24 Apr 2025
  • CONTAP-35410: Off by 1 error in the QMON page table might cause the node to panicThu, 24 Apr 2025
  • CONTAP-82625: MetroCluster configuration replication failure Internal Error: Failed to verify if the volume has blocks in the capacity tierThu, 24 Apr 2025
  • CONTAP-103040: Throughput reported by 'network test-link' lower than expected.Thu, 24 Apr 2025
  • High CPU Alerts while running system controller replaceThu, 24 Apr 2025
  • How to investigate ONTAP cifs latency with Nblade.CifsOperationTimedOut and SpinNp error 410Wed, 23 Apr 2025
  • Is there a tool available that can estimate IOPS for Cloud Volumes ONTAP?Wed, 23 Apr 2025
  • Oracle databases reports high response timeTue, 22 Apr 2025
  • High read latency seen after controller upgrade from AFF-A400 to other platformsMon, 21 Apr 2025

 

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