PRTG Network Monitor

System requirements for
PRTG Network Monitor

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System requirements

 

1. Recommended setup for most PRTG users

 


There are many parameters that influence the user experience of PRTG, but for the majority of PRTG users,
the following sizing recommendations for the hardware of the PRTG core server work fine.

We recommend that you run your PRTG core server installation

  • directly on x64 server hardware or in a properly configured virtual environment (for more information, see section Running PRTG in virtual environments).
  • on Windows Server 2019, Windows Server 2016, or Windows Server 2012 R2.

Note:

.NET Framework 4.7.2 or later must be installed on the core server system. For new PRTG core server installations, we recommend .NET Framework 4.8.

 

Sensors per PRTG core server installation

CPU cores

RAM

Disk space

Concurrently active administrator sessions

Number of remote  probes

Virtualization

Cluster

Recommended license

Up to 500

4

4 GB

100 GB

< 30

< 30

 OK  OK

PRTG 500

Buy now

Up to 1,000

6

6 GB

500 GB

< 30

< 30

 OK  OK

PRTG 1000

Buy now

Up to 2,500

8

8 GB

750 GB

< 20

< 30

 OK  OK

PRTG 2500

Buy now

Up to 5,000

8

12 GB

1,000 GB

< 20

< 60

 OK  not recommended

PRTG 5000

Buy now

Up to 10,000

10-12**

16 GB

1,500 GB

< 15

< 80

 OK *  not supported

PRTG XL1

Buy now

> 10,000

We recommend that you set up additional PRTG core server installations or contact the Paessler Presales team for more information on scaling.

PRTG Enterprise Monitor

 Buy now

* For more information, see Running PRTG in virtual environments below.

** When you use more than 10 CPU cores, you might need to apply a CPU-splitting configuration in the Windows registry.

 

ok = OK

ok = OK

not recommended = not recommended

not recommended = not officially supported, please contact the Presales team

Note: 

Most PRTG users have 10 sensors per device on average. In most cases, a license for 1,000 sensors is therefore enough to monitor about 100 devices, for example.

If you exceed any of these recommendations, please contact the Paessler Presales team.

 

2. Recommended setup for remote probes

 


We recommend that you run remote probes

  • directly on compatible x86 hardware or in a properly configured virtual environment
    (for more information, see section Running PRTG in virtual environments).
  • on Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, or Windows 10.

 

Note:

.NET Framework 4.7.2 or later must be installed on the probe system. For new installations, we recommend .NET Framework 4.8. 

Sensors per remote probe

CPU cores

RAM

Disk space*

Up to 200

2

2 GB

40 GB

200 - 2,000

4

4 GB

40 GB

2,000 - 5,000

6

6 GB

40 GB

> 5,000

We recommend that you set up additional remote probes or contact the Paessler Presales team for more information on scaling.


* A remote probe system does not have any special disk requirements (< 1 GB). In general, we recommend at least 40 GB.

 

 

3. Running PRTG in virtual environments

 

 

 

PRTG is an all-in-one monitoring solution with lots of different components that all rely on the performance and the stability of the system on which the PRTG core server runs. Here, virtual environments add even more layers of complexity. This needs to be considered when you want to set up your PRTG core server installation in a way that you can achieve the same level of performance as on a physical server.

Most PRTG core server installations from 500 to 5,000 sensors do not need any specific optimization regarding your virtual infrastructure.

If you run larger installations of PRTG with more than 5,000 sensors, please follow the instructions in our
Best Practice Guide: Running large installations of PRTG in a virtual environment:

Download PDF
Best practice guide

 

4. More considerations and requirements

 
 

Minimum requirements for special use cases

If you run PRTG with a limited use case, for example, if you only use Ping sensors and SNMP v1 or v2c sensors with long scanning intervals, your installation can work fine with lower system requirements. We have seen PRTG installations that work well with the following minimum requirements.

Note: Keep in mind that you might encounter performance issues with certain sensor types or when you set short scanning intervals. If you are in doubt, please use the recommended setup that we previously specified.

Note: The recommendations for the hardware architecture, the operating system, and the software requirements that we previously specified apply here as well.

Minimum requirements for the PRTG core server installation (only special, low-resource use cases)

Sensors per PRTG core server installation

CPU cores

RAM

Disk space

Concurrently active administrator sessions

Number of remote probes

Virtualization

Cluster

Recomm-
ended
license

Up to 500

2

2 GB

60 GB

< 10

< 30

 OK  OK

PRTG 500

Buy now

Up to 1,000

4

4 GB

250 GB

< 10

< 30

 OK  OK

PRTG 1000

Buy now

Up to 2,500

6

6 GB

500 GB

< 10

< 30

 OK  OK

PRTG 2500

Buy now

Up to 5,000

6

8 GB

750 GB

< 10

< 30

 OK  not recommended

PRTG 5000

Buy now

Up to 10,000

8

12 GB

1 TB

< 10

< 30

 OK *  not supported

PRTG XL1

Buy now

> 10,000

We recommend that you set up additional PRTG core server installations or contact the Paessler Presales team for more information on scaling.

PRTG Enterprise Monitor

 Buy now

 

* For more information, see Running PRTG in virtual environments below.

ok = OK

ok = OK

not recommended = not recommended

not recommended = not officially supported, please contact the Presales team

 

Minimum requirements for remote probes (only special, low-resource use cases)

Sensors per remote probe

CPU cores

RAM

Disk space*

Up to 200

2 GB

40 GB

200 - 2,000

2 GB

40 GB

2,000 - 5,000

4 GB

40 GB

> 5,000

We recommend that you set up additional remote probes or contact the Paessler Presales team for more information on scaling.


* A remote probe system does not have any special disk requirements (< 1 GB). In general, we recommend at least 40 GB.

 

Performance considerations

Please note the following aspects that can affect performance:

  • As a rule of thumb, we can say that typical PRTG installations almost never run into performance issues when they stay below 5,000 sensors, below 30 remote probes, and below 30 user accounts.
  • In a cluster, the monitoring load doubles with each cluster node. The performance is accordingly divided in half with each additional cluster node. Therefore, in a single failover cluster setup that consists of two PRTG core servers that each work as a cluster node, please divide our recommended numbers from above in half.
  • When you have more than 5,000 sensors, you should set 5-minute scanning intervals or longer instead of using 1-minute scaning intervals.
  • Some sensor types create much more load than others. For example, Ping and SNMP sensors create much less load than complex sensors like xFlow (NetFlow, jFlow, sFlow, IPFIX) sensors, VMware sensors, Sensor Factory sensors, WMI sensors, or Syslog/Trap Receiver sensors, to name just a few examples.
  • Try to use sensors with less than 50 channels. Note that sensors with more than 50 channels are not officially supported and can have a high impact on system performance.
  • We recommend that you stay below 30 active user accounts for each PRTG core server. You can have more users if these do not all use the PRTG web interface at the same time (including public dashboards or 'Maps').
  • Try to keep the usage of the following features down: many quickly refreshed dashboards (or 'Maps'), frequently generated, huge sensor reports, heavy usage of packet sniffing, Sensor Factory sensors and Toplists, frequent automatically scheduled auto-discoveries for large network segments, and constant queries of monitoring data via the application programming interface (API).
  • Load balancing is possible using remote probes. To distribute load, you can set up multiple remote probes on different computers. For more information, see the PRTG Manual: Remote Probes and Multiple Probes and watch the video tutorial Distributed Monitoring with PRTG.

Stability considerations

Please note the following aspects that can affect the stability of PRTG:

  • Remote probes require a stable network connection between the PRTG core server and the remote probe. Unstable connections, for example via 3G or via satellite, might work. However, there have been situations where stable monitoring was not possible.
  • Our general recommendation is to stay below 30 remote probes on one PRTG core server. PRTG still scales well up to 60 remote probes as long as you have less than 100 sensors per probe.
  • The quality of your network also plays an important role. When monitoring via the User Datagram Protocol (UDP), for example, a high packet loss rate can lead to frequent timeouts. Remote probes that connect via unstable WAN connections can lead to delays as well.

Note: An internet connection is required for the license activation via HTTP or email.

Supported Windows versions for the PRTG core server and remote probes

The following Windows versions are officially supported for the PRTG core server service and the PRTG probe service. We recommend 64-bit (x64) operating systems.

  • Microsoft Windows Server 2019
  • Microsoft Windows Server 2016
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2012
  • Microsoft Windows 10
  • Microsoft Windows 8.1
  • Microsoft Windows 8
  • Microsoft Windows 7*
  • Microsoft Windows Server 2008 R2*

---

Note: Windows Servers in Core mode or Minimal Server Interface are not officially supported.

On Windows 7 and Windows Server 2008 R2, you have to install the required .NET version manually. For more information, see the Knowledge Base: Which .NET version does PRTG require?

System requirements for user interfaces of PRTG

PRTG web interface

The following browsers (in order of performance and reliability) are officially supported for the web browser based primary user interface of PRTG at a screen resolution of 1024x768 pixels (more is recommended): 

  • Google Chrome 72 or later (recommended)

  • Mozilla Firefox 65 or later

  • Microsoft Internet Explorer 11 

Note: Other browsers and older browsers might not be able to access the PRTG web interface at all. 

 

PRTG Desktop

PRTG Desktop runs under all supported Windows and Mac versions. For detailed system requirements, see All PRTG Desktop downloads

 

PRTG apps for Android and iOS

We provide free apps for Android and iOS devices. For detailed system requirements, see PRTG app download.

System requirements for ITOps Board

Please see ITOps Board for detailed system requirements. 

Note: ITOps Board is exclusively available for Paessler PRTG Enterprise Monitor.

Requirements for monitored devices

  • Monitoring via the Simple Network Protocol (SNMP): The monitored devices must be equipped with SNMP v1, v2c, or v3, and an SNMP-compatible software must be installed on the device. SNMP must be enabled on the device and the machine running PRTG must be allowed to access the SNMP interface. For more information, see the PRTG Manual: Monitoring via SNMP.
  • Monitoring via Windows Management Instrumentation (WMI): To use WMI monitoring, you need a Windows network. Host computers and client computers with Windows operating systems as specified above are officially supported. Do not use Windows Vista or Windows Server 2008 on host computers for WMI monitoring because both have WMI performance issues. For more information, see the PRTG Manual: Monitoring via WMI.
  • Monitoring via xFlow (NetFlow, jFlow, sFlow, IPFIX): The device must be configured to send NetFlow (v5, v9, or IPFIX), sFlow (v5), or jFlow (v5) data packets to the probe system. For more information, see the PRTG Manual: Monitoring Bandwidth via xFlows.
  • Monitoring via packet sniffing: Only data packets that pass the network card of the local machine can be analyzed. Switches with so-called 'monitoring ports' are necessary for network-wide monitoring in switched networks. For more information, see the PRTG Manual: Monitoring Bandwidth via Packet Sniffing.
 

 

 

Need further assistance?

Planning an installation with thousands of sensors?

Our Presales team is happy to assist you! Please write to [email protected].
If possible, describe your monitoring requirements in detail so that we can find the best person to help you.
For larger installations, see Monitoring large IT infrastructures.

 

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