Performance
Performance
Featured
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
- Bad performance during large write operationsMon, 29 Jun 2026
- Performance issues on StorageGRID caused by ONTAPTue, 16 Jun 2026
- High latency from NVLOG transfer on GCP Cloud Volume ONTAPTue, 02 Jun 2026
- SMB copy delays over WAN through Rich Copy ToolWed, 27 May 2026
- Weekly early-morning traffic spike observed on Sundays in Active IQ Unified ManagerFri, 22 May 2026
- Slow iSCSI operations on Trident and Kubernetes for AOSP buildsTue, 19 May 2026
- CONTAP-540551: ONTAP cluster node reboots unexpectedly on dcs_counter_workerWed, 13 May 2026
- Hight write Throughput and Latency without known workloadTue, 12 May 2026
- NFSv3 FSSTAT latency since upgrading ONTAPMon, 11 May 2026
- Latency spikes 3 times a day at the same hour and minuteMon, 11 May 2026
- High Write Latency in SMBC (SnapMirror Business Continuity)Fri, 08 May 2026
- Drag and Drop files from MS Outlook to FlexCache takes long time to saveMon, 04 May 2026
- How to analyze NAS access frequency and peak usage by user accountMon, 27 Apr 2026
- Very High Latency causing VDI crashesFri, 17 Apr 2026
- What is the recommended method for obtaining ONTAP volume's throughput and IOPS for a specific time window?Tue, 14 Apr 2026
- SMB application performance degradation when Oplock is disabledThu, 02 Apr 2026
- High “Other IOPS” on NFS Volume Due to Qualys ScanTue, 31 Mar 2026
- "statistics show" returns no entries for specific counters with zero valuesMon, 30 Mar 2026
- IO workload shows periodic 3‑hour saw‑tooth pattern during long‑duration stability testTue, 17 Mar 2026
- Performance degradation during heavy load due to uneven ASM I/O distributionTue, 17 Mar 2026
- CONTAP-160636: QoS minimum latency with no policies set after ONTAP upgrade.Sat, 04 Jul 2026
- CONTAP-220099: BGP disconnects due to inefficient CG0 invocationSat, 04 Jul 2026
- CONTAP-185349: EMS reports "qos.qtree.fh.error.report" continuouslySat, 04 Jul 2026
- CONTAP-235583: QoS minimum latency with no policies set after ONTAP upgrade.Sat, 04 Jul 2026
- CONTAP-220112: QoS impact in multi-tenant environments when oversubscribed.Sat, 04 Jul 2026
- CONTAP-197212: Panic on MGWD processSat, 04 Jul 2026
- CONTAP-243331: QoS limit latency observed when cluster nodes are not healthySat, 04 Jul 2026
- CONTAP-414670: CM quota system deletes all CCMA files after reboot when CCMA file space exceeds limitSat, 04 Jul 2026
- CONTAP-426568: iSCSI and FCP LUNs/SUs using QoS may become inaccessible after upgrade to 9.16.1Sat, 04 Jul 2026
- CONTAP-399841: mgwd: assertion (index < _xLabels.size()) at src/cmr_zr_result.cc:111 failed, raising SIGABRT(6) at RIP 0x81f8ed71aSat, 04 Jul 2026
- CONTAP-414209: Stale QoS Workload entries after deletion of filesSat, 04 Jul 2026
- CONTAP-377586: REST API documentation that provides calculation to determine the CPU utilization percentage is incorrectSat, 04 Jul 2026
- CONTAP-381432: ONTAP reboots unexpectedly: protection fault on VA 0 code 0 cs:rip 0x20:0xffffffff8babc41e in SK process CCMA-CleanerSat, 04 Jul 2026
- CONTAP-448664: ONTAP cluster node reboots unexpectedlySat, 04 Jul 2026
- CONTAP-454572: No CM RZR access for ASA Legacy systemsSat, 04 Jul 2026
- CONTAP-540551: ONTAP cluster node reboots unexpectedly on dcs_counter_workerSat, 04 Jul 2026
- CONTAP-631965: QoS Policy set for IOPs limit gets throttled as though they are in B/sSat, 04 Jul 2026
- CONTAP-316617: Improper QoS rate limiting during ONTAP upgradeSat, 04 Jul 2026
- CONTAP-86314: “Unable to find the volume's uuid for volume" error message on MetroCluster nodesThu, 02 Jul 2026
- CONTAP-126727: page fault due to invalid memory allocationThu, 02 Jul 2026
