High pNic error rate detected on Mellanox network adapter.

Products

• VMware vSphere ESXi

Issue/Introduction

Random ESXi hosts have the following alert: High pNic error rate detected on vmnic.

Issue is observed in hosts having Mellanox adapters. 

However, the environment is not facing any impact due to this alert. 

Environment

VMware ESXi

Resolution

If there is no impact, you can proceed to suppress the alert by changing the thresholds as explained in the below article:

https://techdocs.broadcom.com/us/en/vmware-cis/vsan/vsan/8-0/vsan-monitoring/monitor-the-vsan-cluster/using-the-vsan-default-alarms/view-vsan-network-alarms.html

The below are the recommended VSAN threshold values:
1. Warning: 1% (default: 0.1%)
2. Critical: 3% (default: 1%)

If the alerts continue despite the change, please open a support case with Broadcom Support. For more information, see Creating and managing Broadcom support cases.