PRTG: Checks your Hard Disks

  • Hard disk checker for Windows, Linux, Unix systems
  • PRTG displays all memory capacities on just one dashboard
  • Automatic diagnosis of your hard disks
  • PRTG informs you before reaching disk space limit


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Get an overview of your network’s disk space and memory status

There’s nothing more frustrating than when a text you’ve been working on for hours suddenly disappears, or when an installation you’ve been waiting patiently to complete is abruptly aborted. Disk space must be available for automatic updates, the saving of user data, and the input of data into CRM or ERP software forms: every network contains a number of processes which write data onto the hard disk. In order to avoid data losses, there must always be sufficient disk space.


PRTG monitoring runs attentively in the background, regulates available hard disk space, and provides prompt alerts in the event of an impending deficiency. Administrators can therefore take appropriate measures to avoid problems related to a lack of hard disk space. This is the only way to ensure the smooth functioning of business processes.


Simply set the desired threshold value for alerts and turn your attention to other tasks. Administrators are alerted as soon as the memory level falls below this value, and can free up disk space by deleting data which is no longer necessary or scaling existing space by way of capacity expansions.

Thanks to PRTG, the entire staff can work with peace of mind.

7 good reasons
to choose PRTG as your hard disk checking



Avoid frustration

Employees can be sure there is sufficient memory whenever they save their data. Work processes are uninterrupted. Hours of work are saved. And employees are spared frustration.

Secure your data

Data is becoming more and more valuable, and the loss of precious information (e.g. customer data) can be extremely costly. With PRTG, data losses due to failed save attempts are avoided.

Stay up-to-date on free disk space

No need to verify the level of memory yourself. PRTG monitors this for you and promptly lets you know when space runs low.

Be quick to act

You will be notified promptly if the amount of available disk space is approaching its limit and if hardware must be scaled.

Automated processes

Existing hard disks, statuses, and disk space are automatically recognized during setup. The administrator has nothing more to do.

Regular health check-ups

Thanks to health check-ups, server failure and data loss can be prevented. And hard disks can be replaced on time.

Oversee network systems

Even network file systems get checked.

Your disk space at a glance – even on the go

PRTG can be started within minutes and it's compatible with most mobile devices.


„The greatest advantage of PRTG? You get to rest easy“

Steffen Ille, Bauhaus-University of Weimar.

This is what hard disk monitoring looks like in PRTG


Snmp HP Proliant Sensor


 Sensor HP ProLiant Physical Disk

Sensor WMI Free Disk Space

Sensor WMI Free Disk Space

PRTG simplifies your day!

Let our hard disk monitoring software work for you.
So you can concentrate on your day-to-day work with total peace of mind.

PRTG saves time

With PRTG, you get one central monitoring tool for all your hard disks. You’ll enjoy a quick and complete overview at all times via our dashboard and app.

PRTG saves worry

Monitoring your hard disks around the clock has never been easier. The built-in alert feature is quick to act – before crashes and complaints can occur.

PRTG saves money

80% of our customers report substantial savings in the area of network management. And license costs pay for themselves in an average of a few weeks.

The Swiss Army Knife for Sys Admins


Adapt PRTG individually and dynamically, to your specific needs, using the API:

  • HTTP API: Access monitoring data and manipulate monitoring objects using HTTP requests
  • Custom Sensors: Create your own sensors for customized monitoring
  • Custom Notifications: Create your own notifications to send alarms to external systems

PRTG gathers
this data for you


  • Disk space monitoring for Unix systems ("Total disk space Unix")

  • Disk space monitoring for Linux systems ("Total disk space Linux")

  • Total disk space monitoring for Windows ("Total disk space Windows")

  • Performance and disk space monitoring of storage area networks (SANs)
  • File modifications - you’re alerted if the files you have flagged are modified

  • Existence of files - is a certain file even available?

  • Hard disk health - automatic diagnosis of your hard disks with respect to integrity, temperature, and other attributes

  • Hard disk speed - is the speed up to par?

  • Hard disk failure - is the hard disk responsive? Does it display an error message?

  • Measure the disk space of SMB file network systems (free & total) ("Share disk free-Sensor")

200,000 system administrators worldwide trust
our software. Every Day.


How does checking your Disk Space with PRTG work?


PRTG Network Monitor tracks disk space development across the entire network and maintains an overview of the storage levels of Unix, Linux, and Windows systems. PRTG monitors physical and logical drives, web servers, file servers, applications, and other servers. Furthermore, the Share Disk Free Sensor monitors the amount of free disk space on SMB network file systems. PRTG also supports encryption via the Secure Shell network protocol.


The utilization of the disk space of physical and logical drives in Windows systems is monitored with WMI. PRTG logs available disk space, records file modifications, and checks if certain files exist. In addition, PRTG boasts sensors which test the "health” of the hard disk and promptly warn of any possible errors. The Disk Free Sensor uses SNMP and SSH to monitor available space on the hard disks of Linux/Unix systems.

Award winning solution

We work hard on making our software as powerful and easy-to-use
as possible for our customers each and every day.
Of course it makes us proud when we get awards for that.



German Quality




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With PRTG, PAESSLER AG offers a powerful, affordable and easy-to-use unified monitoring tool. Over 200,000 administrators worldwide use our software, whether it be to monitor their server performance, virtual environments, or even the accessibility of their websites. PRTG is a network analysis solution for Windows.

Our network monitoring software was created in 1997 by Dirk Paessler. We are an established software company with headquarters in Nuremberg, Germany. We place great value on our high standards and never stop developing our software. And if ever there is an issue, our support team usually responds within 24 hours (except weekends).

Opt for Hardware monitoring with PRTG. You'll save time, money, and effort. The trial version is for free, allowing you to evaluate our monitoring tool with no strings attached. And you can upgrade whenever you'd like.


Network Monitoring Software - Version (September 11th, 2017)


Download for Windows and cloud version (PRTG in the cloud) available


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