The Hardware Status tab displays the error: Hardware monitoring service on this host is not responding or not available
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The Hardware Status tab displays the error: Hardware monitoring service on this host is not responding or not available

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Article ID: 310488

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Updated On:

Products

VMware vCenter Server

Issue/Introduction

Symptoms:
You are experiencing these issues with the Hardware Status tab in vCenter Server:
  • An ESX host's System Summary reports the error:

    Hardware monitoring service on this host is not responding or not available


Environment

VMware vCenter Server 5.1.x
VMware vCenter Server 5.5.x
VMware vCenter Server 4.0.x
VMware vCenter Server 5.0.x
VMware vCenter Server 4.1.x

Resolution

This issue may occur when the ESX host is located in a DMZ and is being managed by a vCenter Server that is outside the DMZ. It may occur if port 5989 is blocked, even if ESX and vCenter Server are in the same network.


To resolve this issue, ensure that TCP port 5989 (incoming and outgoing) is open to allow CIM transaction traffic to pass between the ESX host and vCenter Server and vice-versa.

For more information about firewall configuration and ports, see:
 
Alternatively, you can see if restarting the Common Information Model (CIM) service, which is the process used for providing hardware health information, resolves the issue.
  1. Open an SSH session to the host. For more information, see Opening a command or shell prompt
  2. Run this command:

    /etc/init.d/sfcbd-watchdog restart

  3. Go back to the Hardware Status tab on vCenter Server and click the Update link. It may take up to 5 minutes to refresh.

    Note: Do not navigate away from the Hardware Status tab until it refreshes.



Additional Information

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