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  1. Home>
  2. IT Topics>
  3. Virtualization>
  4. VMware ESXi Monitoring Tool
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VMware ESXi Monitoring with PRTG

Track real-time performance metrics to keep virtual machines and ESXi hosts running smoothly

  • Identify resource-hungry VMs and optimize CPU, memory, and storage allocation
  • Automate alerts and notifications to prevent downtime and resource bottlenecks
  • Integrate with vSphere, VMware Tools, and SNMP for accurate performance insights
Free download
product overview

Our users give top ratings for monitoring with Paessler PRTG

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PRTG VMware ESXi monitoring: What you will find on this page

Table of content
  • Optimize ESXi performance with real-time insights
  • What VMware ESXi monitoring looks like in PRTG
  • 4 reasons why PRTG is the VMware ESXi monitoring tool of your choice
  • Preconfigured PRTG sensors for VMware ESXi monitoring
  • VMware ESXi Monitoring: FAQ

PRTG makes VMware ESXi monitoring as easy as it gets

Custom alerts and data visualization let you quickly identify and prevent downtime and resource bottlenecks.

Free download
PRODUCT OVERVIEW

Optimize ESXi performance with real-time insights

Running a VMware ESXi environment means managing multiple virtual machines, monitoring resource usage and preventing performance bottlenecks. Without the right monitoring tool, identifying problems across hosts, vCenter and data stores can be challenging. Paessler PRTG gives you a clear view of your entire virtual infrastructure, ensuring you can identify problems before they impact business operations. With real-time performance data and automated alerts, you can optimize workloads and ensure stability. PRTG provides the insight needed to keep VMware environments efficient, secure and reliable.

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Comprehensive monitoring

PRTG tracks key performance metrics such as CPU utilization, memory allocation and data store capacity. You can monitor ESXi hosts, virtual machines and vCenter from a single dashboard. Customizable views allow you to focus on the most critical aspects of your VMware environment.

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Automated alerts

Instant notification helps you react to performance problems before they cause downtime. PRTG provides threshold-based alerts via email, push notifications or third-party integrations. You can set escalation rules to prioritize urgent issues and automate responses.

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Detailed reporting

PRTG generates reports on performance trends, resource utilization and hardware health. Customizable templates allow you to analyze long-term data and optimize your infrastructure. Scheduled reports help you make data-driven decisions to improve efficiency.

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Seamless integration

PRTG connects to vSphere, VMware Tools and SNMP to collect accurate performance data. API support allows you to integrate monitoring with other IT management systems. Compatibility with industry standard protocols ensures flexibility in diverse IT environments.

What VMware ESXi monitoring looks like in PRTG

Diagnose network issues by continuously tracking VMware ESXi resource utilization. Show hardware health, virtual machine load, network traffic and other key metrics in real time. Visualize monitoring data in clear graphs and dashboards to identify problems more easily. Gain the overview you need to troubleshoot performance slowdowns.

PRTG Screenshot device tree view

Device tree view of the complete monitoring setup

PRTG screenshot map virtualization

Custom PRTG dashboard for keeping an eye on the virtual infrastructure

PRTG screenshot graph live data traffic

Live traffic data graph in PRTG

Start monitoring VMware ESXi with PRTG and see how it can make your network more reliable and your job easier.

Free download
PRODUCT OVERVIEW

IT experts agree: Paessler PRTG is a great solution for IT infrastructure monitoring

PCMag

“All-around winning
 network monitor”

IT Brief

“The real beauty of PRTG is the endless possibilities it offers”

ITPro

“PRTG Network Monitor 
is very hard to beat”

4 reasons why PRTG is the VMware ESXi monitoring tool of your choice

Managing a VMware ESXi environment can quickly become overwhelming. Virtual machines consume more resources than expected, data store usage spikes without warning, and performance bottlenecks slow down critical applications. Without proper monitoring, small issues can escalate into major outages. With PRTG, you always stay ahead of these problems by getting real-time insights, automated alerts, and reliable support whenever you need it.

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Flexible licensing

Choose a licensing model that fits your needs-whether for a small setup or an enterprise-scale data center. Easily scale PRTG as your virtual environment grows. No hidden costs-just transparent pricing based on your needs.

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Simple setup

Get started in minutes with pre-configured sensors for VMware ESXi. No complex scripts or manual configuration required - just connect PRTG to vCenter and start monitoring. Even without deep VMware knowledge, you can easily monitor your virtual infrastructure.

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Reliable support

Get expert help when you need it, whether through documentation, our knowledge base, or direct contact with our support team. Get quick answers to technical questions and best practices to optimize your VMware monitoring. You're never left alone with problems.

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Secure access

Monitor your ESXi environment with encrypted connections and role-based access control. Restrict permissions based on user roles to prevent unauthorized changes. Keep your virtual machines and sensitive data protected at all times.

Explore our preconfigured PRTG sensors for VMware ESXi monitoring

PRTG comes with more than 250 native sensor types for monitoring your entire on-premises, cloud, and hybrid cloud environment out of the box. Check out some examples below!

VMware Host Hardware (WBEM)

The VMware Host Hardware (WBEM) sensor monitors information about the hardware of an ESXi server using Web-based Enterprise Management (WBEM). It can show the following:

  • The current
  • Health status
  • Average host power status
  • Fan RPM
  • Temperature
Mware Host Hardware (WBEM
Mware Host Hardware (WBEM

VMware Host Hardware Status (SOAP)

The VMware Host Hardware Status (SOAP) sensor monitors the hardware status of a VMware host server using the Simple Object Access Protocol (SOAP). It gives you a general status overview of the host. It can show the following:

  • Downtime
  • Total number of items in the alert, warning, normal, and unknown status as the vSphere client reports
VMware Host Hardware Status (SOAP)
VMware Host Hardware Status (SOAP)

VMware Host Performance (SOAP)

The VMware Host Performance (SOAP) sensor monitors a VMware host server using the Simple Object Access Protocol (SOAP). It can show the following and more:

  • CPU readiness and usage
  • Datastore total read and write latency
  • Disk usage, read and write speed, kernel latency, and device latency
  • Active and consumed memory
  • Received and transmitted bytes
VMware Host Performance (SOAP)
VMware Host Performance (SOAP)

VMware Virtual Machine (SOAP)

The VMware Virtual Machine (SOAP) sensor monitors a virtual machine (VM) on a VMware host server using the Simple Object Access Protocol (SOAP). It can show the following and more:

CPU readiness and usage

  • Datastore total read and write latency
  • Disk usage and read and write speed
  • Active and consumed memory
  • Received and transmitted bytes
VMware Virtual Machine (SOAP)
VMware Virtual Machine (SOAP)

VMware Datastore (SOAP)

The VMware Datastore (SOAP) sensor monitors the disk usage of a VMware datastore using the Simple Object Access Protocol (SOAP). It can show the following:

  • Accessibility of the datastore
  • Available capacity
  • Free and total provisioned disk space
  • Uncommitted bytes
VMware Datastore (SOAP)
VMware Datastore (SOAP)

SSH SAN System Health

The SSH SAN System Health sensor monitors the system health of a storage area network (SAN) via Secure Shell (SSH). It can show the following:

  • Overall unit status
  • Capacitor cell and pack voltage and voltage status
  • Disk and memory controller temperature and temperature status
  • On-board temperature and temperature status
SSH SAN System Health
SSH SAN System Health

See the PRTG Manual for a list of all available sensor types.

PRTG is compatible with all major vendors, products, and systems

compatible with all major vendors, products, and systems

PRTG makes VMware ESXi monitoring as easy as it gets

Custom alerts and data visualization let you quickly identify and prevent downtime and resource bottlenecks.

Free download
PRODUCT OVERVIEW

“With PRTG, you get a centralized, intuitive, all-in-one tool that monitors the entire infrastructure. In the event of an error, the software immediately informs you by email. If you don’t hear from PRTG, you can sit back and relax, knowing everything is in order. Shortly after implementing PRTG, we were able to identify and eliminate performance bottlenecks in our VMware environment and load problems in our network.”

Steffen Ille, Head of Infrastructure, Service Center for Computer Systems and Communication
Bauhaus University Weimar

“The demands on our entire IT infrastructure have grown steadily in recent years. An important step towards the optimization of this environment involved the virtualization of our digital landscape. In order to maintain the required transparency and the uninterrupted performance of all our systems, we needed a powerful network monitoring tool. For us, the most important selection criteria were price-performance ratio and ease of use. PRTG met all our expectations and has proven to be an indispensable part of our network management.”

Daniel Baumgartner, Network Administrator
Volkswind

Your VMware ESXi monitor at a glance – even on the go

PRTG is set up in a matter of minutes and can be used on a wide variety of mobile devices.

device overview
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We are a VMware Technology Alliance Partner

Paessler achieved VMware's highest level of endorsement due to our technological excellence, leading market position, and superior compatibility with VMware products.

What does this mean for you?

  • Easy integration of VMware components with PRTG
  • State-of-the-art features for monitoring your virtual environment
  • Expert technical support around your VMware monitoring setup

Create innovative solutions with Paessler’s IT partners

Partnering with innovative IT vendors, Paessler unleashes synergies to create
new and additional benefits for joined customers.

Rittal

Rittal

IT that works constitutes a business-critical basis for a company's success. Availability and security must be defined for the respective purpose and closely monitored – by OT and IT alike.

Read more
baramundi

baramundi

baramundi and PRTG create a secure, reliable and powerful IT infrastructure where you have everything under control - from the traffic in your firewall to the configuration of your clients.

Read more
NetBrain

NetBrain

Integrating monitoring results from PRTG into NetBrain maps makes the foundation for network automation.

Read more

Find the root cause of the problem with our PRTG VMware ESXi monitoring solution

Real-time notifications mean faster troubleshooting so that you can act before more serious issues occur.

Free download
PRODUCT OVERVIEW
Paessler PRTG

Paessler PRTG

Network Monitoring Software – Version 24.4.102.1351 (November 12th, 2024)

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Hosting

Download for Windows and cloud-based version PRTG Hosted Monitor available

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Languages

English, German, Spanish, French, Portuguese, Dutch, Russian, Japanese, and Simplified Chinese

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Monitor everything

Network devices, bandwidth, servers, applications, virtual environments, remote systems, IoT, and more

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Pricing

Choose the PRTG Network Monitor subscription that's best for you

VMware ESXi Monitoring: FAQ

 

What is a VMware ESXi monitoring tool?

A VMware ESXi monitoring tool tracks the performance and health of ESXi hypervisor servers, virtual machines, and the underlying virtualization infrastructure. It provides real-time insights into CPU usage, memory allocation, network traffic, and data store capacity. With the right tool, you can detect performance issues, monitor VMware vSphere environments, and optimize virtual machine workloads to ensure stability and efficiency.

Why is performance monitoring important for VMware ESXi environments?

Performance monitoring is essential to prevent resource bottlenecks and maintain a stable ESXi server. Without proper monitoring, virtual machines can consume excessive CPU and memory, resulting in slow response times and system failures. By continuously tracking metrics such as CPU usage, disk performance, and vSphere client activity, you can identify and resolve problems before they impact business operations.

How does PRTG help monitor VMware ESXi hosts and vCenter Server?

PRTG integrates with VMware ESXi and vCenter Server to provide a complete overview of your virtual infrastructure. It collects data about VMware hosts, virtual disks, network activity and resource allocation. PRTG also supports SNMP, SSH and API-based monitoring to track health status, authentication attempts and hardware failures. Automated alerts notify you of potential problems, helping you maintain uptime and prevent performance degradation.

Can PRTG monitor VMware vSphere and guest operating systems?

Yes, PRTG supports vSphere monitoring and can track guest operating systems running on VMware ESXi hosts. It monitors virtual machines for resource usage, disk activity and network performance. You can see detailed statistics about operating system processes, memory consumption and software applications (apps) running on each virtual machine. This helps you optimize workloads and avoid unnecessary resource allocation.

How does PRTG handle security monitoring for VMware ESXi?

PRTG increases security by monitoring authentication logs, firewall activity and IP address access to your ESXi environment. It detects failed login attempts, monitors VMware ESX host connections and ensures that only authorized users access critical systems. With role-based permissions and encrypted data transmission, PRTG helps protect your virtualization infrastructure from unauthorized access and cyber threats.

Can PRTG detect hardware failures and system crashes in VMware environments?

Yes, PRTG continuously monitors the health of ESXi servers and VMware hosts. It tracks power conditions, fan speeds, and temperature sensors to detect hardware malfunctions. The built-in watchdog functionality identifies critical failures and can trigger automatic actions such as sending notifications or performing a controlled reboot to prevent downtime.

How does PRTG simplify troubleshooting for VMware ESXi performance issues?

PRTG provides detailed real-time and historical performance data to help diagnose VMware ESXi problems. It visualizes CPU utilization, virtual disk performance and network bottlenecks in easy-to-read dashboards. With automated alerts, log tracking and remote monitoring via SSH, you can quickly pinpoint and resolve problems in your ESXi environment. PRTG also generates reports to help optimize resource allocation and improve system efficiency over time.

What is a sensor in PRTG?

In PRTG, “sensors” are the basic monitoring elements. One sensor usually monitors one measured value in your network, for example the traffic of a switch port, the CPU load of a server, or the free space on a disk drive. On average, you need about 5-10 sensors per device or one sensor per switch port.

We asked: would you recommend PRTG? Over 95% of our customers say yes!

Paessler conducted trials in over 600 IT departments worldwide to tune its network monitoring software closer to the needs of sysadmins. The result of the survey: over 95% of the participants would recommend PRTG – or already have.

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Still not convinced?

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More than 500,000 sysadmins love PRTG

Paessler PRTG is used by companies of all sizes. Sysadmins love PRTG because it makes their job a whole lot easier.

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Monitor your entire IT infrastructure

Bandwidth, servers, virtual environments, websites, VoIP services – PRTG keeps an eye on your entire network.

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Try Paessler PRTG for free

Everyone has different monitoring needs. That’s why we let you try PRTG for free.

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Start monitoring VMware ESXi with PRTG and see how it can make your network more reliable and your job easier.

Free download
PRODUCT OVERVIEW

Products

  • Paessler PRTG
    Paessler PRTGMonitor your whole IT infrastructure
    • PRTG Network Monitor
    • PRTG Enterprise Monitor
    • PRTG Hosted Monitor
    • PRTG extensions
      Extensions for Paessler PRTGExtend your monitoring to a new level
  • Icon Features
    FeaturesExplore all monitoring features

Monitoring with PRTG

  • Network monitoring
  • Bandwidth monitoring
  • SNMP monitoring
  • Network mapping
  • Wi-Fi monitoring
  • Server monitoring
  • Network traffic analyzer
  • NetFlow monitoring
  • Syslog server

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info@paessler.com

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