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    • Wafl memory utilization keeps fluctuating
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Wafl_memory_utilization_keeps_fluctuating
      Applies to FAS arrays over FCP ONTAP 9.4 and later version Issue Multiple EMS events can be seen over time where wafl memory utilization fluctuates and availability varies from 1 GB to 3 GB wafl.memor...Applies to FAS arrays over FCP ONTAP 9.4 and later version Issue Multiple EMS events can be seen over time where wafl memory utilization fluctuates and availability varies from 1 GB to 3 GB wafl.memory.statusLowMemory wafl.memory.statusVeryLowMemory Performing TO/GB clears the thread and events were not seen for few days but fix is to upgrade the ONTAP to the fixed version
    • Servers cannot write to the LUN's due to WAFL very low on memory
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/Servers_cannot_write_to_the_LUN_s_due_to_WAFL_very_low_on_memory
      Sat Jan 09 04:14:35 CET [node_name-01: scsit_lu_1: wafl.memory.statusVeryLowMemory:alert]: WAFL is running very low on memory, with 1454MB remaining. Sat Jan 09 04:19:35 CET [node_name-01: scsit_lu_0:...Sat Jan 09 04:14:35 CET [node_name-01: scsit_lu_1: wafl.memory.statusVeryLowMemory:alert]: WAFL is running very low on memory, with 1454MB remaining. Sat Jan 09 04:19:35 CET [node_name-01: scsit_lu_0: wafl.memory.statusVeryLowMemory:alert]: WAFL is running very low on memory, with 0MB remaining. Sat Jan 09 04:57:17 CET [node_name-01: scsit_lu_1: wafl.memory.statusVeryLowMemory:alert]: WAFL is running very low on memory, with 445MB remaining.