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    • https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/A_FlexCache_origin_volume_hangs_and_stops_responding_with_extremely_high_latency
      A FlexCache origin cluster suddenly has high latency up to 1 or 2 seconds. The cluster also serves read-write cache cluser volumes. The cluster appears to hang and stop responding for several minutes....A FlexCache origin cluster suddenly has high latency up to 1 or 2 seconds. The cluster also serves read-write cache cluser volumes. The cluster appears to hang and stop responding for several minutes. The following error is also seen in the event log (EMS): Cluster Session Manager (CSM) failed to create session session tag FLEXCACHE_OP_FORWARD, record state ACTIVE, CSM error CSM_CONNABORTED, low-level error UNKNOWN, socket error 0, and TLS error 0.