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ONTAP event log reports low memory

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Flag to induce syncore (or capture memory distribution output) upon wafl low memory event

Applies to

  • ONTAP 9

Issue

  • Multiple WAFL is running low on memory events can be seen in EMS and the output of event log show command:

Cluster1::> event log show
Time                Node             Severity      Event
------------------- ---------------- ------------- ---------------------------
6/17/2021 02:15:39  Cluster1-01      ALERT         wafl.memory.statusVeryLowMemory: WAFL is running very low on memory, with 4854MB remaining.
6/17/2021 00:10:37  Cluster1-01      NOTICE        wafl.memory.statusLowMemory: WAFL is running low on memory, with 4891MB remaining.

Sun Jun 15 05:24:15 +0000 [Cluster1-01: wafl_exempt06: wafl.memory.statusVeryLowMemory:alert]: WAFL is running very low on memory, with 618MB remaining.
Sun Jun 15 05:29:34 +0000 [Cluster1-01: wafl_exempt02: wafl.memory.statusVeryLowMemory:alert]: WAFL is running very low on memory, with 624MB remaining.
Sun Jun 15 05:29:38 +0000 [Cluster1-01: wafl_exempt01: wafl.memory.statusLowMemory:notice]: WAFL is running low on memory, with 640MB remaining.
Sun Jun 15 05:37:05 +0000 [Cluster1-01: wafl_exempt04: wafl.memory.statusLowMemory:notice]: WAFL is running low on memory, with 637MB remaining.

  • Shared folders are inaccessible when this error is triggered.

Note: Depending on the scenario, side effects such as CIFS share access failure may or may not occur.

 

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