How to monitor the availability
of IT services in your network
in 5 steps
Today, the availability of business services goes hand in hand with the availability of IT services. For you as an MSP, customer satisfaction is crucial so there is no room for unavailable or non-functional business environments.
But how can you have everything up and running if you are responsible for managing a network with hundreds or thousands of different network hosts? In this how-to guide, we want to demonstrate a scenario for availability monitoring to show you how you can monitor the availability of IT services.
What does availability of IT services mean?
In the same way that an IP packet travels from the physical to the application layer, network monitoring needs to cover all aspects from the Ethernet connection to the residing service.
This means that if you want to monitor the availability of an IT service like a web shop that is hosted on a VMware ESXi host, for example, you also need to monitor all underlying layers including the physical machine (for example, a Dell server), the virtualization platform (here, VMware), the operating system (for example, Windows Server 2019), and the application (for example, a Microsoft IIS web server).
You also need to consider the way you define network availability. Different IT services are reachable via different protocols. For example, if you want to check if a web server is available, you send ICMP packets that you monitor with a Ping sensor, but if you want to check if a website is reachable in a specific internet browser, you use an HTTP sensor. Or, if you want to know if your antivirus software is up and running on your operating system, you can check the availability of the service with a WMI Service sensor or an SNMP Windows Service sensor.
Availability monitoring in different layers
Let’s have a look at a scenario for monitoring the availability of IT services in different layers, including some sensors that help you check if the target devices or services are up and running.
Use an HTTP sensor to check if the iRMC interface is available and accessible via an internet browser.
The physical server runs, for example, VMware 6.7, which hosts a number of virtual machines and datastores.
PRTG comes with different sensors to monitor your VMware infrastructure.
With Windows Server 2019, you can monitor a Microsoft Internet Information Services (IIS)
web server and Windows services.
To check the status of the Microsoft IIS web server, or to monitor other applications that use IIS, such as Microsoft SharePoint or Microsoft Reporting Services (SSRS), set up a Windows IIS Application sensor.
For more information, see also How to set up web server monitoring in 3 steps.
The last layer whose availability you need to monitor is the service layer.
IT services come in various colors and shapes, so let’s have a look at two examples:
And this is what your availability
monitoring can look like
PRTG Network Monitor makes
network monitoring easy
In monitoring all layers from the physical machine to the IT service itself, you not only make sure that everything is running smoothly, but you also significantly reduce the overall downtime.
If there are any issues regarding availability, PRTG notifies you based on sensor states. To be alerted even before IT services or other parts in your network are not available anymore, you can also set up limits for channels so that PRTG triggers a notification if the sensors measure values above or below the defined limits. For more information, see How to set up limits in PRTG in 4 steps.
This way, you can keep a network available and reliable, and your customers happy!