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
- IO workload shows periodic 3‑hour saw‑tooth pattern during long‑duration stability testTue, 17 Mar 2026
- VM reports No space left on device while using btrfsMon, 16 Mar 2026
- Performance Degradation on CIFS Shares with Large Number of Files on NetAppThu, 12 Mar 2026
- Can consolidating volumes from multiple SVMs into single SVM cause performance impact?Mon, 02 Mar 2026
- Inconsistent file copy performance between volumes when using Zero‑Filled test filesThu, 26 Feb 2026
- CONTAP-631965: QoS Policy set for IOPs limit gets throttled as though they are in B/sThu, 19 Feb 2026
- Slowness accessing a FlexCache cache volume due to origin being fullWed, 11 Feb 2026
- Very high cifs latency on Citrix VDIWed, 11 Feb 2026
- Is it possible to reserve CPU or memory resource for single ONTAP data SVM?Tue, 03 Feb 2026
- VMware reports lost access to volumes due to disk overutilizationWed, 28 Jan 2026
- Is Snapmirror "backoff" throttling at the node level or is it system-wideTue, 27 Jan 2026
- Read performance degradation after ONTAP upgradingMon, 26 Jan 2026
- Is it possible to get performance statistics on Igroup level?Fri, 23 Jan 2026
- ClusterShell statistics node show Reports Zero IOPS/Bps/Latency for One Node in ONTAPMon, 19 Jan 2026
- REST API quota reports call is very slowTue, 13 Jan 2026
- Recurring “wafl.cp.toolong:error” Events and NFS Write Failures After ONTAP UpgradeThu, 08 Jan 2026
- wafl.readdir.expired message is seen on the FAS8040 systemWed, 07 Jan 2026
- High disk latency on remote plex and errors on ISL port channelTue, 06 Jan 2026
- How to obtain expected latency range for SSD aggregate volumesFri, 02 Jan 2026
- High CPU from tiering scanner after upgrading to 9.14.1Fri, 26 Dec 2025
- CONTAP-103040: Throughput reported by 'network test-link' lower than expected.Fri, 20 Mar 2026
- CONTAP-448664: ONTAP cluster node reboots unexpectedlyThu, 19 Mar 2026
- ONTAP Data Processing latency - Resolution PathWed, 18 Mar 2026
- IO workload shows periodic 3‑hour saw‑tooth pattern during long‑duration stability testTue, 17 Mar 2026
- VM reports No space left on device while using btrfsMon, 16 Mar 2026
- High write latency on FlexCacheMon, 16 Mar 2026
- Performance Degradation on CIFS Shares with Large Number of Files on NetAppMon, 16 Mar 2026
- CONTAP-631965: QoS Policy set for IOPs limit gets throttled as though they are in B/sSat, 14 Mar 2026
- CONTAP-399841: mgwd: assertion (index < _xLabels.size()) at src/cmr_zr_result.cc:111 failed, raising SIGABRT(6) at RIP 0x81f8ed71aThu, 12 Mar 2026
- CONTAP-243331: QoS limit latency observed when cluster nodes are not healthyThu, 12 Mar 2026
- Low latency and High CPU or DISK utilization due to deduplicationTue, 10 Mar 2026
- High latency in CPU Dblade in ONTAP due to large io sizesTue, 10 Mar 2026
- How to identify if workload is using indirect accessTue, 10 Mar 2026
- CONTAP-271485: ONTAP cluster node reboots unexpectedlySun, 08 Mar 2026
- CONTAP-414670: CM quota system deletes all CCMA files after reboot when CCMA file space exceeds limitSun, 08 Mar 2026
- CONTAP-454572: No CM RZR access for ASA Legacy systemsSun, 08 Mar 2026
- CONTAP-426568: iSCSI and FCP LUNs/SUs using QoS may become inaccessible after upgrade to 9.16.1Sun, 08 Mar 2026
- CONTAP-414209: Stale QoS Workload entries after deletion of filesSun, 08 Mar 2026
- CONTAP-377586: REST API documentation that provides calculation to determine the CPU utilization percentage is incorrectSun, 08 Mar 2026
- CONTAP-381432: ONTAP reboots unexpectedly: protection fault on VA 0 code 0 cs:rip 0x20:0xffffffff8babc41e in SK process CCMA-CleanerSun, 08 Mar 2026
