elxnet_reset:3547: [vmnic0] f/w init failed, adapter in Error State

By | March 17, 2020

One of the ESXi host has lost the ping response and the virtual servers which are there on the host, have lost the network.

When I look into the vCenter logs, found that “vSphere HA detected that host” with an yellow colour warning also found red colour error “vSphere HA has detected the network isolation of a host”.

And also found an alarm “Host high availability error” on a host triggered by event 343628060.

Logged into the IMM console of the ESXi host and found the host is up and running. However, it lost the network.

In the vCenter management console, showing about 10 VMs in disconnected state with no ping response.

Without any other thought, I have rebooted the ESXi host from the console. All the 10 virtual servers which are were in the disconnected state, have rebooted and migrated to another available host.

This action will be worked in the background by the VMware HA functionality. When any host went down or got rebooted in a abrupt situation, VMware HA comes into picture.

I’m still trying to dig out what went wrong here. Have looked at the vmkernel logs of the effected host.

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Found the below errors at the time when host actually network isolated –

elxnet_reset:3547: [vmnic0] f/w init failed, adapter in Error State

This message has repeated 15 times: 0000:0c:00.1: Error in Card Detected! Cannot allocate WRBs hw_error:1|fw_timeout:1
This message has repeated 16 times: 0000:0c:00.1: Error in Card Detected! Cannot allocate WRBs hw_error:1|fw_timeout:1

elxnet_reset:3547: [vmnic0] f/w init failed
elxnet_reset:3485: [vmnic1] adapter in Error State, Skip the Reset

Please refer this link in case that helps to understand on ESXi host network isolation.

The above errors clearly saying that, the host was network isolated with hardware errors. And that related to NIC card which is throwing errors and been captured in the ESXi host vmkernel logs.

Have logged a case with hardware vendor and logs been uploaded to the hardware vendor site for their review.

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