Applies to ONTAP 9 ISCSI Protocol FC Protocol Issue Concern of potential impact caused by latency induced from CPU N-blade or network layer on SAN volumes.
Decommission of VM-based node Host volumes having high latency due to incomplete decommission of storageGRID Node. We could see Decommission completed on Grid Topology > Site > Primary Admin node > CM...Decommission of VM-based node Host volumes having high latency due to incomplete decommission of storageGRID Node. We could see Decommission completed on Grid Topology > Site > Primary Admin node > CMN > Tasks but From Maintenance > Decommission page doesnt reset. Decommissionned Node logs shows it got failed, and although it should re-try the decommission on this node but instead got success message (Child process exited with RC=0) due to a known issue.
Applies to ONTAP 9.5 and earlier versions Transmission Control Protocol (TCP) Issue Poor read performance (latency and packet loss) in WAN environment with ONTAP 9.5 LAN connections have acceptable le...Applies to ONTAP 9.5 and earlier versions Transmission Control Protocol (TCP) Issue Poor read performance (latency and packet loss) in WAN environment with ONTAP 9.5 LAN connections have acceptable levels, compared to WAN connections
Applies to ONTAP 9 FlexGroup Issue High metadata latency with FlexGroup when a mix of metadata and read/write is being used Slowness issue for reads/writes can be seen for a particular S3 bucket Often...Applies to ONTAP 9 FlexGroup Issue High metadata latency with FlexGroup when a mix of metadata and read/write is being used Slowness issue for reads/writes can be seen for a particular S3 bucket Often manifests as Cluster latency in qos statistics volume latency show output
This is ONTAP 9 performance resolution guide, which is a starting point for understanding where a performance problem might originate, and also take the help of other related articles which help in re...This is ONTAP 9 performance resolution guide, which is a starting point for understanding where a performance problem might originate, and also take the help of other related articles which help in resolving the issue.
When using a QoS policy, QoS latency will suddenly increase Network Exempt utilization - CPU processing for protocol ops - will increase. Users may report intermittent slowness/latency issue whenever ...When using a QoS policy, QoS latency will suddenly increase Network Exempt utilization - CPU processing for protocol ops - will increase. Users may report intermittent slowness/latency issue whenever QOS max limit is reached, due to the saturated Network Exempt processing domain. Delay from Network Processing, also called CPU N-Blade or Network Exempt (Nwk_Exmpt) Performing any test (like running dd commands) on the client end report high latency due to bursty workload in nature.
