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    • High latency from excessive SMB TRIM operations
      https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/High_latency_from_excessive_SMB_TRIM_operations
      ::*> statistics show-periodic -object wafl -counter avg_wafl_msg_latency -node node_1 -instance wafl cluster1: wafl.wafl: 10/16/2020 18:25:28 avg_wafl msg Complete Number of latency Aggregation Consti...::*> statistics show-periodic -object wafl -counter avg_wafl_msg_latency -node node_1 -instance wafl cluster1: wafl.wafl: 10/16/2020 18:25:28 avg_wafl msg Complete Number of latency Aggregation Constituents -------- ----------- ------------ 14.91ms n/a n/a 23.25ms n/a n/a 19.72ms n/a n/a 17.34ms n/a n/a 19.09ms n/a n/a
    • High build time process latency on the teamcity build agent
      https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/High_build_time_process_latency_on_the_teamcity_build_agent
      Applies to ONTAP 9 CIFS/SMB Hyper-V TeamCity build agent Issue Build time increased twice in TeamCity build environment High volume Other latency when the Hyper-V virtual machine use SMB
    • LUN unexpectedly out of space
      https://kb.netapp.com/on-prem/ontap/da/SAN/SAN-KBs/LUN_unexpectedly_out_of_space
      Thin LUN out of space and goes offline: Wed Nov 03 18:58:42 +0300 [NETAPP01: scsit_lu_0: scsiblade.lun.offline.system:error]: LUN 81EiL+Qh7xxx in volume with MSID 21606016xx on Vserver vserver1 has be...Thin LUN out of space and goes offline: Wed Nov 03 18:58:42 +0300 [NETAPP01: scsit_lu_0: scsiblade.lun.offline.system:error]: LUN 81EiL+Qh7xxx in volume with MSID 21606016xx on Vserver vserver1 has been brought offline due to lack of space in the volume. "2024-04-08T17:08:29-07:00","clusterabc","emergency" "LUN.out.of.space: LUN /vol/vol1/lun, vol vol1 (DSID 1051) is out of space (UUID: 16fe70a3-a17c-4861-9c55-dd5b864306xx)." LUN is offline with Space Reservation and Space Allocation disabled:
    • Windows host does not auto-reclaim unused space for thin provisioned luns
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Windows_host_does_not_auto-reclaim_unused_space_for_thin_provisioned_luns
      Applies to ONTAP 9 Windows Issue Windows host operating system does not reclaim space automatically. It is possible to free up space manually.