Unexpected Reboot of Cisco Integrated Management Controller (CIMC) on a Server Running ESXi

Products

• VMware vSphere ESXi

Issue/Introduction

Cisco Integrated Management Controller (CIMC) unexpectedly reboots on a server that is running ESXi.

The occurrence of the reboot has been confirmed through the log of CIMC and observation of network connectivity logs. Specifically, system monitoring records show that ping connectivity to the CIMC was lost and subsequently restored around the time of the incident. This pattern is consistent with a CIMC self-reset or reboot sequence.

Environment

VMware vSphere ESXi

Cause

The operation of ESXi shouldn't have a critical impact on the CIMC that would trigger a reboot. The investigation suggests that the issue is likely attributed to either a CIMC firmware anomaly or a hardware malfunction.

Resolution

Engage Cisco hardware vendor for further diagnostics and resolution.