OpenNebula vs VMware Aria Operations comparison

OpenNebula and VMware are both solutions in the Cloud Management category. OpenNebula is ranked #6 with an average rating of 8.5, while VMware is ranked #3 with an average rating of 8.6. OpenNebula holds a 6.1% mindshare in CM, compared to VMware’s 6.8% mindshare. Additionally, 100% of OpenNebula users are willing to recommend the solution, compared to 94% of VMware users who would recommend it.

OpenNebula

Read 15 OpenNebula reviews

3,139 Views
3,045 Comparison Views

100% willing to recommend

VMware Aria Operations

Read 375 VMware Aria Operations reviews

6,466 Views
3,750 Comparison Views

94% willing to recommend

OpenNebula

VMware Aria Operations

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Executive SummaryUpdated on Dec 17, 2024

VMware Aria Operations and OpenNebula compete in the cloud management category. Based on the data, VMware Aria Operations has the upper hand due to its advanced analytics and predictive insights specifically tailored for VMware environments.

Features: VMware Aria Operations is distinguished by real-time analytics, integration with vCenter/ESXI, and dynamic thresholds, which provide predictive insights into VMware environments. It offers capacity management and proactivity through detailed metrics for issue prevention. OpenNebula, meanwhile, is noted for its flexibility and adaptability across various platforms while being less specialized in VMware contexts.

Room for Improvement: VMware Aria Operations could enhance user engagement by simplifying its reporting features and improving the user interface for beginners. Additionally, expanding integration capabilities with third-party tools would extend its applicability beyond VMware. OpenNebula needs to improve its documentation and customer support for clearer communication. Of note, the platform would benefit from more robust community backing and quicker feature updates.

Ease of Deployment and Customer Service: VMware Aria Operations supports on-premises, hybrid, and private cloud deployments, with a recognized strong technical support network. However, reaching advanced support levels could be improved. OpenNebula is favored for its straightforward setup for on-premises and public cloud deployments, but it requires clearer communication channels and faster customer support response times.

Pricing and ROI: VMware Aria Operations is on the higher end of the pricing spectrum, making it more appealing to larger enterprises with specific VMware needs, substantiated by a significant ROI in environments heavily utilizing VMware. OpenNebula offers a cost-effective open-source alternative with lower upfront and operational costs, making it desirable for budget-conscious scenarios, albeit with some limitations in advanced features compared to VMware Aria Operations.

To learn more, read our detailed OpenNebula vs. VMware Aria Operations Report (Updated: September 2025).

Buyer's Guide

OpenNebula vs. VMware Aria Operations

September 2025

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Review summaries and opinions

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

Categories and Ranking

OpenNebula

Ranking in Cloud Management

6th

Average Rating

8.2

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

No ranking in other categories

VMware Aria Operations

Ranking in Cloud Management

3rd

Average Rating

8.2

Reviews Sentiment

6.9

Number of Reviews

375

Ranking in other categories

Virtualization Management Tools (1st)

Mindshare comparison

As of September 2025, in the Cloud Management category, the mindshare of OpenNebula is 6.1%, down from 7.1% compared to the previous year. The mindshare of VMware Aria Operations is 6.8%, down from 9.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Cloud Management Market Share Distribution
Product	Market Share (%)
VMware Aria Operations	6.8%
OpenNebula	6.1%
Other	87.1%

Cloud Management

Featured Reviews

FOURES Jean-Philippe

Products Manager at a tech services company with 501-1,000 employees

Reliable, simple to manage, and offers great technical support

The support of VXLAN fits with our network management. Thanks to this we can propose mixed solutions using virtual resources on OpenNebula and bare metal servers hosted in our facilities linked to each other on the sale network. This use case is very useful when some applications need bare metal power (Kubernetes workers, huge databases, AI models computations, et cetera). The cluster management is very useful for splitting our different clusters (mutual vs dedicated). We can manage deployments and capacity planning without pain. The API is also really simple and it helped us to develop the Terraform provider to manage OpenNebula like any other cloud infrastructure.

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Amar Sorro

Team Lead Virtualization at Hybrid Tech

Manage and monitor crucial banking operations with deep logging and efficient alerting

The most valuable features of VMware Aria Operations include its excellent monitoring capabilities. It allows me to perform deep monitoring and logging of the entire environment, providing a quick alarm and warning system through email. These features help me in efficiently managing virtual machines. The solution also offers easy access to VMware KB articles for problem resolution, ensuring quick access to troubleshooting information.

Read full review

Quotes from Members

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

Pros

"The service feature appeals most to us, thus it is the most valuable."

"It makes maintenance very easy and stress-free for our teams."

"It's easy to integrate OpenNebula with our IT systems."

"OpenNebula has very good integration with SAP Storage."

"I also like the ability to build custom functions. I can define a function where I have two types of views and configure the dependencies. The virtual data centers concept allows me to define users. If a user wants to join certain kinds of machines, the host and the other user won't see them. It gives me the flexibility to define multiple views and data centers in one place."

"For the entire data center, as a private cloud, I believe that user management, expert management, and the virtual data center is completely magic for the users."

"OpenNebula is lightweight, stable, and easy to customize."

"The solution provides templates for configurations that can easily be exchanged to VMs."

More OpenNebula pros

"This solution has improved my organization by claiming back resources that have been wasted on applications or on servers that just didn't need them. Having a tool that shows that information on a pretty regular basis has been very helpful."

"Ease of use and the ability to do what I need to do is very easy."

"For project management and new clients, the What-If Analysis is very good. You can use it for workloads. When you are adding new workloads to your platform, it helps you avoid impacting your production."

"Its technical support team responds quickly."

"We do not have any problems with the product. It solves our problems. We now know if something is on the console and if there really is a problem. Before this, we had a lot of false positives. It digs into the problems and then at the end it just drops it."

"The stability in vRealize has been great. We've had no outages nor impacts. The upgrade process has been great so far."

"The tool helped the organization in all monitoring tasks when being delivered as a service for customers helps them to generate early alarm templates, being a cloud service provider is delivered as part of the IaaS to generate memory consumptions processing and storage additionally can be configured parameters such as networking and services that are configured on virtual machines."

"I have found the reporting tool, capacity planning, and reports for performance monitoring the most valuable features."

More VMware Aria Operations pros

Cons

"An area for improvement in OpenNebula is the number of features it has. The solution doesn't have that many cloud features compared to other solutions. You'd say, "Okay, simplicity over a rich feature list?" Some say, "No, I need a big machine or a cloud interface for my customers to manage resources. I don't have to go and do it for them." Some people do it that way, and it works, but I'd like to improve the limited features in OpenNebula."

"The protocol for clusterization is rough and doesn't work well."

"The storage feature that they have is a bit confusing."

"The web interface could be better. It's not very difficult to use, but there's room for enhancement."

"Hosting platforms are limited so the deployment process needs improvement."

"As with all enterprise software licensing, the pricing is not intuitive and must be negotiated; grandfathered contracts are better than anything offered today."

"The UI, monitoring, and alerting could benefit from further improvements."

"Backup features are only available in the enterprise edition. The community version lacks a good solution for making backups."

More OpenNebula cons

"I would like to see more integration between vRealize Operations, Log Insight, and Network Insight. It would be nice if they worked a bit better together."

"The main concern would be just to make sure that there's some consistency when third-parties are building their various content packs for it. It seems like it's pretty random in terms of what you're going to get. A vendor is are going to provide whatever they provide but it's really hit or miss in terms of how good the quality is."

"If it could help with calculating on-prem costs, based on their experience, it would help customers determine whether to remain on-prem or move to the cloud."

"I know that they talk a lot about AI and a sort of forecasting ahead of time. It's a good application, but it has to wait for a certain period of time to actually do an analysis. If it would give you that ahead of time, or even forecasting, it would be really improved."

"In some respects, the UI is pretty stale. It has been that way from the beginning. Some easier ways to create custom dashboards for management, versus the tech guys, versus administrators, that would be helpful."

"In the beginning, I picked up an implementation that had been designed wrong from the ground up."

"It wasn't exactly proactive. It was supposed to, but there were a lot of delays. It could also be because of our infrastructure and the way our network was set up. If vROps could be more proactive, that would be nice. It is nice to have the information beforehand, but when there is downtime, it takes a lot of time for us to be able to see an issue in real-time, which becomes a bit challenging. If there is a way to improve the data collection for the whole vCenter that would be nice because data collection takes a lot of time."

"Technical support is normally good but there is sometimes a delay in their response."

More VMware Aria Operations cons

Pricing and Cost Advice

"The solution is open source so is free."

"VRA is very expensive but OpenNebula is free."

"We use the Community Edition, rather than the Enterprise Edition."

"OpenNebula gives good value for money."

"The licensing for OpenNebula used to be free, but now it's no longer free. A customer contacted me asking to move to another provider because of the changes in the licensing terms for OpenNebula. I have no information on how much the OpenNebula license is because the customer pays for it, and I only do the integration."

"OpenNebuoa has recently come up with a new subscription model that is economical and a lot of new customers are choosing this as it is an easy subscription model."

"The pricing: It's expensive."

"The value that we get from vROps is okay. It could be cheaper."

"I have reduced the time to troubleshoot for my customers."

"The solution has helped to reduce the time to troubleshoot issues."

"The product is too expensive to implement."

"Pricing could always be cheaper, but it's acceptable."

"VMware support is very costly compared to other organizations' support. When you purchase a VMware product, such as vSphere or vROps, the license is perpetual, but you also have to purchase the support service for a number of years. The support service pricing is very high compared to the license, and compared to competitive vendors."

"The price of the solution is expensive."

More VMware Aria Operations pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

20%

University

Financial Services Firm

Comms Service Provider

Computer Software Company

12%

Financial Services Firm

11%

Manufacturing Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	7
Midsize Enterprise	6
Large Enterprise	3

By reviewers
Company Size	Count
Small Business	62
Midsize Enterprise	62
Large Enterprise	278

Questions from the Community

What do you like most about OpenNebula?

The live migration feature has been great and is something we use very often.

See all answers

What is your experience regarding pricing and costs for OpenNebula?

OpenNebula gives good value for money.

See all answers

What needs improvement with OpenNebula?

The web interface could be better. It's not very difficult to use, but there's room for enhancement. Another area for improvement is the integration with hardware to manage the lower layer of the n...

See all answers

What's the difference between VMware vRA (automation) and vROps (operations)?

vROP is a virtualization management solution from VMWare. It is efficient and easy to manage. You can find anything you need from the software interface. It provides complete visibility over applic...

See all answers

Is VMware Aria Operations a user friendly solution?

In terms of user-friendliness, VMware Aria Operations is one of the best solutions out there. It is not overly complex to set up and you can rely on the technical support to provide you with assis...

See all answers

What is the most useful new feature of VMware Aria Operations?

For me, the alerts features are the most unique part of this product, no matter the current name it uses. When they introduced the new version of VMware Aria Operations, they also introduced more a...

See all answers

Comparisons

CloudStack vs OpenNebula

Compared 46% of the time

VMware Aria Automation vs OpenNebula

Compared 14% of the time

Nutanix Cloud Manager (NCM) vs OpenNebula

Compared 12% of the time

VMware Cloud Director vs OpenNebula

Compared 9% of the time

Cisco UCS Director vs OpenNebula

Compared 2% of the time

More OpenNebula Competitors

VMware Aria Automation vs VMware Aria Operations

Compared 20% of the time

IBM Turbonomic vs VMware Aria Operations

Compared 9% of the time

VMware vSphere vs VMware Aria Operations

Compared 8% of the time

Nutanix Prism vs VMware Aria Operations

Compared 8% of the time

SolarWinds Virtualization Manager vs VMware Aria Operations

Compared 8% of the time

More VMware Aria Operations Competitors

Product Reports

Buyer's Guide

OpenNebula

August 2025

Download OpenNebula product report

Buyer's Guide

VMware Aria Operations

August 2025

Download VMware Aria Operations product report

Also Known As

No data available

VMware vRealize Operations (vROps), vCenter Operations Manager (VCOPS)

Overview

OpenNebula provides the most simple but feature-rich and flexible solution for the comprehensive management of virtualized data centers to enable private, public and hybrid IaaS clouds. OpenNebula interoperability makes cloud an evolution by leveraging existing IT assets, protecting your investments, and avoiding vendor lock-in.

OpenNebula is a turnkey enterprise-ready solution that includes all the features needed to provide an on-premises (private) cloud offering, and to offer public cloud services.

OpenNebula

VMware Aria Operations is a high-ranking virtualization management and cloud management tool that automates and simplifies IT management to the applications it supports. It achieves this through full-stack visibility from physical, virtual, and cloud infrastructure. The product allows users to enable self-driving IT operations management across private, hybrid, and multi-cloud environments. This is conducted with the unified operations platform that delivers continuous performance, capacity and cost optimization, and integrated compliance through artificial intelligence (AI) and machine learning (ML), and predictive analytics.

VMware Aria Operations Use Cases

VMware Aria Operations has several use cases, some of which include:

Continuous performance optimization: VMware Aria Operations allows users to assure application performance at a minimal cost, facilitated by real-time predictive analytics and artificial intelligence. The product can be used to automatically balance workloads, improve consolidation rations, optimize and rightsize workloads, and avoid contention.
Capacity and cost management: VMware Aria Operations can be utilized to reduce cost and improve efficiency with real-time ML-based capacity and cost analytics. The solution uses these tools to visualize cost savings opportunities and accelerate decision-making.
Intelligent remediation: This product can also be used to predict, prevent, and troubleshoot issues with actionable insights. Through other VMware integrations, users can streamline and centralize IT operations.
Integrated compliance: The solution can be utilized to reduce risk and enforce IT regulatory standards for VMware Cloud through integrated compliance and automated drift remediation.

VMware Aria Operations Features

The product has various features which users can utilize. Several of the features that the 2022 version of VMware Aria Operations introduced include:

Management pack builder: This feature is a no-code solution that allows users to expand their operations visibility to anywhere they wish. The builder allows users to connect to a data source using an HTTP or Amazon AWS data source, as well as to make API calls, create objects, and build out relationships with other objects in the product.
Public cloud basic actions: This is a set of features that allows VMware Aria Operations users to initiate actions automatically via the product's UI for AWS, Microsoft Azure, or GCP CE instances.
Rule-based application discovery: Through this new feature of the product, users can easily discover multiple applications running in all or specific areas of infrastructure and view associated resources. This can be achieved through simple user-defined rules, including discovering applications based on tags, object names, and properties.
Aria Operations capacity management: This feature allows organizations to view the results of what-if analysis based on their allocation model and specify business hours for capacity calculations.
Alerts: This is a set of features that include components called Conditions and Symptoms, which are used to alert different types of issues on the platform.
User access management: Through this feature, users can benefit from improved ways to configure in VMware Aria Operations with the introduction of scopes.
Support for raw device mapping storage: This feature allows users to get configuration details about their raw device mapping (RDM), such as disk sharing, compatibility mode, and SCSI Bus Sharing.

VMware Aria Operations Benefits

VMware Aria Operations brings various benefits to the organizations using it. Among them are the following:

The product helps organizations reduce unplanned downtime and maximize return on investment (ROI) in hybrid and multi-cloud environments.
VMware Aria Operations simplifies management for hybrid clouds from migration assessments.
Users can benefit from an accelerated journey to VMware Cloud on AWS through this solution.
The product can be delivered on premises or as a service, providing flexibility for its users.
VMware Aria Operations can increase operational efficiency through monitoring and management features.
The solution accelerates decision-making through detailed cost analytics, which is visualized for users' convenience.
VMware Aria Operations allows users to both utilize standard compliance templates and create their own custom ones.

Reviews from Real Users

Mohamed N., a tech lead VMware support engineer at a tech services company, appreciates VMware Aria Operations because it is easy to use, stable, and support is always available.

Mojtaba K., a senior system administrator at a comms service provider, values VMware Aria Operations due to the fact that its dashboards give you a glimpse of what is really going on in your virtualized environment.

VMware

Sample Customers

Akamai, BBC, Fermilab, Terradue, Surf Sara, Produban, Netways, ESA, China Mobile, BlackBerry, Deloitte, Fuze, Telefonica, Trivago, Nokia, Encore Tech, Beeks.

Science Applications International Corporation, Tribune Media, Heartland Payment Systems, Telkom Indonesia, Columbia Sportswear, iGATE, CSS Corp, Angel Broking, Adira Finance, Hipskind, Beiersdorf Shared Services, Innovate Mas Indonesia, Adobe, Cleveland Clinic Abu Dhabi , Join Experience S.A, Borusan Holdings, Department of Transport - Abu Dhabi

Buyer's Guide

OpenNebula vs. VMware Aria Operations

September 2025

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