Knowledge BaseTroubleshootingHost restarts unexpectedly

Host restarts unexpectedly

TroubleshootingZCF · CloudVersions3.x-5.5.30Article IDKB-100276Updated2026-08-19

Issue/Introduction

This article describes how to troubleshoot a host that restarts unexpectedly. It applies to the initial diagnosis and resolution of similar issues in ZStack Cloud.

Environment

  • Product: ZCF
  • Component: Cloud
  • Version: 3.x-5.5.30

Possible causes

The CPU C-State setting is not disabled in the BIOS.

Resolution

Symptom handling recommendation

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Host restarts unexpectedly | KB-100276 | ZStack Resource Center