Monitor Azure Arc-enabled Server Availability

Question

Is there a way to monitor Arc-enabled Server availability using Azure Monitor? There is no metric alert available for arc servers. We tried using resource health alert but it is not triggered when the servers are stopped manually. Tried KQL based on Heartbeat but ratherthan VM availability its the AMA agent availability which gives false alerts when VM is in running state and moreover its autoresolved after the granularity period . Is there any other approach we could try for Arc enabled servers which will cover all scenarios like VM stopped from VM, portal, any health issues etc. TYIA

Answer 1

Use Azure Resource Graph Explorer

Azure Resource Graph can be used to query the state of your resources, including Arc-enabled servers. You can create a query to check the status of your VMs and create alerts based on these queries.

Example Query

resources
| where type == "microsoft.hybridcompute/machines"
| project name, status = properties.status.displayStatus
| where status != "Running"

You can set up an alert rule based on this query to notify you when the status of any Arc-enabled server is not "Running." Or else

Use Custom Script for Monitoring.

In scenarios where built-in monitoring tools fall short, you can deploy custom scripts to your Arc-enabled servers to periodically check their status and report back to Azure Monitor.

Example Script

Create a custom script that checks the VM status and logs it to Log Analytics or sends it to an Azure Function for further processing.

#!/bin/bash
# Check if the VM is running
if systemctl is-active --quiet my-vm-service; then
    echo "VM is running"
else
    echo "VM is stopped"
fi

Deploy this script using a cron job or a similar scheduling tool, and configure it to send logs to Azure Monitor.