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CONTAP-334525: FAS28x0 takeover disabled intermittently for unsynced logs with NVIDIA SN2100 switches

  1. Last updated
    Mar 21, 2025
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Category:
ontap-9
Specialty:
hw
Last Updated:
3/21/2025, 6:14:25 PM

Issue

  • One or more nodes experiences an unexpected reboot, showing an error on reboot similar to:

PANIC: irdma_request_reset:83 requesting pf-reset in process defer_thr
  • EMS shows unsyncronized logs and takeover disabled/enabled:

 
Mon Sep 02 01:15:06 +0100 cf.fsm.takeoverOfPartnerDisabled:error]: Failover monitor: takeover of dmstorage-03 disabled (unsynchronized log).
Mon Sep 02 01:15:09 +0100  cf.fsm.takeoverOfPartnerEnabled:notice]: Failover monitor: takeover of dmstorage-03 enabled
Mon Sep 02 02:01:08 +0100 cf.fsm.takeoverOfPartnerDisabled:error]: Failover monitor: takeover of dmstorage-03 disabled (unsynchronized log).
Mon Sep 02 02:01:14 +0100  cf.fsm.takeoverOfPartnerEnabled:notice]: Failover monitor: takeover of dmstorage-03 enabled
Mon Sep 02 04:28:37 +0100 cf.fsm.takeoverOfPartnerDisabled:error]: Failover monitor: takeover of dmstorage-03 disabled (unsynchronized log).
Mon Sep 02 04:28:40 +0100  cf.fsm.takeoverOfPartnerEnabled:notice]: Failover monitor: takeover of dmstorage-03 enabled

 
  • Switched Cluster using NVIDIA SN2100 switches

 

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