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CONTAP-204796: CLAM Panic Due to loss Heartbeats on all Nodes

  1. Last updated
    Apr 24, 2025
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Category:
ontap-9
Specialty:
core
Last Updated:
4/24/2025, 2:34:46 PM

Issue

In a 4-node cluster, NodeB receives panic packet from CLAM master (NodeA) and panics since heartbeats failed. During this timeframe, we see there is spike in the multi/broadcast frames (50M - 225M range) received on data ports (e1c, e2c) of all nodes. There are discards due to bus overruns seen on data ports(e1c, e2c) as well as on cluster ports(e1a, e2a).

 

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