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    • https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/ESX_Hosts_losing_access_to_LUNs_regularly_along_with_Aggregate_reporting_long_CP_s
      Applies to VMware critical alert for datastore path down Poor performance and alerts for SQL virtual machines Affected datastores: Path redundancy to storage device naa.xyz degraded. Path vmhba1:C0:T7...Applies to VMware critical alert for datastore path down Poor performance and alerts for SQL virtual machines Affected datastores: Path redundancy to storage device naa.xyz degraded. Path vmhba1:C0:T78:L10 is down. ONTAP reports long or back2back consistency points (CP) wafl_exempt00: wafl.cp.toolong:error]: Aggregate_xyz_sata_aggr1 experienced a long CP. I/O latency increased from average value of 8000 microseconds to 1000008 microseconds
    • https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/ONTAP_9_Performance_Resolution_Guide
      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.
    • https://kb.netapp.com/on-prem/E-Series/SANtricity-OS-KBs/NetApp_E-Series_poor_performance
      Applies to NetApp SANtricity OS NetApp E-Series and EF-Series Issue Poor performance on E-Series systems
    • https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/Poor_client_performance_but_ONTAP_latency_is_good_-_Resolution_Guide
      KB article provides steps to investigate network latency when High-end user latency reported from Internal monitoring software, Low throughput/Poor Performance reported by end users and Data ONTAP and...KB article provides steps to investigate network latency when High-end user latency reported from Internal monitoring software, Low throughput/Poor Performance reported by end users and Data ONTAP and NetApp monitoring tools show low latency.
    • https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Slow_reads_on_a_CIFS_share_no_issues_with_writes
      Applies to ONTAP 9 CIFS Issue A read activity is much slower then a write activity on a CIFS share End users are reporting low throughput (poor performance) by read activity (slow read) on a CIFS shar...Applies to ONTAP 9 CIFS Issue A read activity is much slower then a write activity on a CIFS share End users are reporting low throughput (poor performance) by read activity (slow read) on a CIFS share Data ONTAP and NetApp monitoring tools reports no relevant information Packet trace (tcpdump) between CIFS-server and -client reports issues on read activity on client side: small payload, packet drop (loss), server side is fine
    • https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Experiencing_high_latency_on_FC_LIF_connected_to_SAN
      Applies to ONTAP 9.x Brocade Issue Experiencing high latency on SAN target port fiber channel (FC) LIF impacting multiple hosts No indication of backbend disk latency PerfStats collected on the NetApp...Applies to ONTAP 9.x Brocade Issue Experiencing high latency on SAN target port fiber channel (FC) LIF impacting multiple hosts No indication of backbend disk latency PerfStats collected on the NetApp nodes show latency in the front-end fabric