Performance
Performance
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Performance Resolution Guide
Start here to troubleshoot ONTAP 9 performance
Start here to troubleshoot ONTAP 9 performance
Data Processing latency Resolution Guide
Troubleshoot Data Processing latency
Troubleshoot Data Processing latency
Disk utilization and latency Resolution Guide
Troubleshoot FAS high disk latency or utilization
Troubleshoot FAS high disk latency or utilization
Other Resources
- CONTAP-561705: DRCGFM: Cannot add volume to QoS policy group because volume is not contained in the Vserver to which the policy group belongsFri, 06 Mar 2026
- CONTAP-562491: DR CONFIG REPLICATION FAILED: QoS policy group conflicts with QoS policyFri, 06 Mar 2026
- CONTAP-631965: QoS Policy set for IOPs limit gets throttled as though they are in B/sFri, 06 Mar 2026
- CONTAP-448664: ONTAP cluster node reboots unexpectedlyFri, 06 Mar 2026
- CONTAP-456220: Node reboots due to CPU hang due to thread stuck in repeated checksFri, 06 Mar 2026
- CONTAP-46634: System Manager could not return performance data in Dashboard with new experienceFri, 06 Mar 2026
- CONTAP-488734: Node reboots unexpectedly with mgwd unresponsive possible due to vnode lock issueFri, 06 Mar 2026
- CONTAP-377586: REST API documentation that provides calculation to determine the CPU utilization percentage is incorrectFri, 06 Mar 2026
- CONTAP-381432: ONTAP reboots unexpectedly: protection fault on VA 0 code 0 cs:rip 0x20:0xffffffff8babc41e in SK process CCMA-CleanerFri, 06 Mar 2026
- CONTAP-390616: page fault (supervisor write data, page not present) in SK process repl_Handle_low on release 9.16.1RC1Fri, 06 Mar 2026
- CONTAP-395558: CONTAP-283733 workaround ineffective for MetroClusterFri, 06 Mar 2026
- CONTAP-399841: mgwd: assertion (index < _xLabels.size()) at src/cmr_zr_result.cc:111 failed, raising SIGABRT(6) at RIP 0x81f8ed71aFri, 06 Mar 2026
- CONTAP-414209: Stale QoS Workload entries after deletion of filesFri, 06 Mar 2026
- CONTAP-414670: CM quota system deletes all CCMA files after reboot when CCMA file space exceeds limitFri, 06 Mar 2026
- CONTAP-319490: Why are there qos.VioDet.Mintput.Throttle alerts after upgrading ONTAP to 9.13.1 or newer?Fri, 06 Mar 2026
- CONTAP-271485: ONTAP cluster node reboots unexpectedlyFri, 06 Mar 2026
- Write performance issues for Flexcache due to incorrect sizingFri, 06 Mar 2026
- Will changing storage efficiency from default to efficient cause CPU utilization?Fri, 06 Mar 2026
- Why is there a discrepancy in CPU usage between the results of 'qos statistics volume resource cpu show' command and 'sysstat' command in node shell?Fri, 06 Mar 2026
- What is the guidance on the recommended values for Latency (ms) and IOPS?Fri, 06 Mar 2026
- CONTAP-283141: ONTAP cluster node reboots unexpectedlyMon, 09 Mar 2026
- Higher latency is observed on a volume despite no changes in IOPS or throughputFri, 06 Mar 2026
- CIFS Share Slowness on ONTAPFri, 06 Mar 2026
- High disk utilization causing volume high latencyFri, 06 Mar 2026
- Sudden drop in PEAK PERFORMANCE line in ActiveIQ Unified Manager to 50 percentFri, 06 Mar 2026
- High Latency seen on Volume after vMotion activityFri, 06 Mar 2026
- High Node and CPU Utilization Due to WAFL ScanFri, 06 Mar 2026
- Latency was observed for a volume which cleared automatically after a whileFri, 06 Mar 2026
- High CPU utilization when running vserver lock show commandFri, 06 Mar 2026
- VMware reports lost access to volumes due to disk overutilizationFri, 06 Mar 2026
- How To Use OneCollect 2.0 or Greater to Collect and Upload Performance Archive DataFri, 06 Mar 2026
- Latency higher than expected for AFF systemFri, 06 Mar 2026
- Lower than expected performance while utilizing a single volumeFri, 06 Mar 2026
- Read performance degradation after ONTAP upgradingFri, 06 Mar 2026
- UDP connections are single threadedFri, 06 Mar 2026
- Why is the reported LUN latency higher than the volume latency?Fri, 06 Mar 2026
- Why is there QoS latency after upgrading to ONTAP 9.3+?Fri, 06 Mar 2026
- Why is vol0 showing high number of IOPS?Fri, 06 Mar 2026
- Write latency and low throughput in Metrocluster configurationsFri, 06 Mar 2026
- Write Performance Impacted by Back to Back Consistency PointsFri, 06 Mar 2026
