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Nagios XI vs ServiceNow Discovery comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Aug 6, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
6.6
Nagios XI enhances efficiency and time management but concerns about increased costs affect ROI perception across organizations.
Sentiment score
6.9
ServiceNow Discovery's ROI is inconsistent, with full benefits seen when combined with other services for operational efficiency.
 

Customer Service

Sentiment score
6.5
Nagios XI support is mixed; praised for responsiveness but criticized for high cost, complex licensing, and delayed responses.
Sentiment score
6.2
ServiceNow Discovery's support varies, with mixed experiences on responsiveness and effectiveness, improving with advanced support tiers and partnerships.
This rating is because there are features on the tool that never worked and despite calling our support, there were no results.
 

Scalability Issues

Sentiment score
7.1
Nagios XI is scalable for small to medium environments but faces challenges in large infrastructures and cloud adaptability.
Sentiment score
7.7
ServiceNow Discovery is highly scalable, suited for large infrastructures, compatible with AWS and Azure, but requires careful cost management.
If the user interface isn’t presenting data well, it becomes difficult to manage when scaling.
I would rate it as a nine on a scale of one to ten, indicating it is highly scalable.
It receives this rating because it can be difficult to troubleshoot when the discovery is failing.
 

Stability Issues

Sentiment score
7.3
Nagios XI is stable, but large deployments may experience performance issues, database problems, and minor network dependencies.
Sentiment score
8.3
ServiceNow Discovery is highly stable and reliable, with minor configuration issues not affecting its strong overall performance ratings.
It is very stable.
I would rate the stability of ServiceNow Discovery as nine, as we never had downtime.
 

Room For Improvement

Nagios XI's interface is outdated, lacks scalability, needs better cloud integration, APIs, automation, and improved documentation.
ServiceNow Discovery struggles with service mapping and integration, necessitating enhancements for usability, cloud capabilities, and easier licensing.
Many tools have poor user interfaces, making them hard to manage and navigate.
The GUI could be improved. It's a bit too basic.
Improvements could include implementing chatbots to simplify ticket creation.
The areas of ServiceNow Discovery that have room for improvement are getting custom reports on the relationship between CIs that are not on the same table.
 

Setup Cost

Nagios XI provides cost-efficient enterprise-level monitoring with reasonable pricing, appreciated for its features and open-source options.
ServiceNow Discovery is pricey but valued for advanced features, with potential discounts though standalone costs are high.
We are using the free, open-source version.
The pricing for the Nagios XI product is good and better than other solutions.
I think the price of ServiceNow Discovery is cheaper than BMC.
ServiceNow is considered more expensive compared to other products.
 

Valuable Features

Nagios XI provides customizable, flexible, and scalable IT infrastructure monitoring with real-time alerts and extensive plugin support.
ServiceNow Discovery integrates seamlessly with ServiceNow suite, enhancing IT operations through automated mapping, security, and cloud discovery.
Nagios XI simplifies our setup and reduces the time spent configuring monitoring tools.
The alerting system is very effective.
Cost optimization and contract notifications are also useful as they provide insights into user time spent on tickets.
The most beneficial features of ServiceNow Discovery for maintaining my IT infrastructure are the CMDB top and discovery of network switches.
 

Categories and Ranking

Nagios XI
Ranking in Server Monitoring
10th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
Network Monitoring Software (16th), IT Infrastructure Monitoring (19th), Cloud Monitoring Software (20th)
ServiceNow Discovery
Ranking in Server Monitoring
2nd
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
42
Ranking in other categories
IT Asset Management (2nd), Cloud Resource Discovery Services (1st)
 

Mindshare comparison

As of June 2025, in the Server Monitoring category, the mindshare of Nagios XI is 6.4%, down from 8.2% compared to the previous year. The mindshare of ServiceNow Discovery is 3.8%, down from 6.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Server Monitoring
 

Featured Reviews

Amir  Said - PeerSpot reviewer
Effective alerting enhances network monitoring experience with an easy setup
We love Nagios XI due to the fact that JPS Web is very useful. JPS monitors the modem and performs switching, monitoring the computer, and performing switching. We implement some applications and traffic monitoring. The alerting system is very effective. For instance, if we have an alarm on some RAM storage if the traffic is cut or dropped.
Ayobanji Iluyomade - PeerSpot reviewer
Service helps organizations with network discovery and IT infrastructure management but troubleshooting challenges remain
ServiceNow Discovery was adopted by my organization. We use ServiceNow Discovery for discovery and ITSM The most beneficial features of ServiceNow Discovery for maintaining my IT infrastructure are the CMDB top and discovery of network switches. The areas of ServiceNow Discovery that have room…
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Comparison Review

it_user174738 - PeerSpot reviewer
May 31, 2015
Nagios vs. Zabbix vs. PRTG vs. Spiceworks vs. Solarwinds Network Performance Monitor
I have researched a quite a few network monitoring tools which can be used for various monitoring purposes of not only the servers, but the intermediate routers as well. There are majorly three types of these softwares. Ones which are completely open-source, you can do almost anything you want…
 

Top Industries

By visitors reading reviews
Educational Organization
34%
Computer Software Company
10%
Financial Services Firm
8%
Manufacturing Company
6%
Computer Software Company
15%
Financial Services Firm
13%
Manufacturing Company
9%
Healthcare Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Nagios XI?
It is an open-source platform with valuable features for performance and stability.
What is your experience regarding pricing and costs for Nagios XI?
The pricing for the Nagios XI product is good and better than other solutions. I would give it a four or five.
What needs improvement with Nagios XI?
The user interface needs improvement. Many tools have poor user interfaces, making them hard to manage and navigate.
What do you like most about ServiceNow Discovery?
The solution can prioritize the discovery of IP ranges. The product automatically places all Discovery CIs into the correct class within the CMDB.
What is your experience regarding pricing and costs for ServiceNow Discovery?
I think the price of ServiceNow Discovery is cheaper than BMC.
What needs improvement with ServiceNow Discovery?
The areas of ServiceNow Discovery that have room for improvement are getting custom reports on the relationship between CIs that are not on the same table.
 

Overview

 

Sample Customers

Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
York, National Grid, DXC Technology, experian, BEACHBODY
Find out what your peers are saying about Nagios XI vs. ServiceNow Discovery and other solutions. Updated: June 2025.
857,028 professionals have used our research since 2012.