OpenNebula vs VMware Aria Automation comparison

OpenNebula and Broadcom are both solutions in the Cloud Management category. OpenNebula is ranked #9 with an average rating of 7.0, while Broadcom is ranked #3 with an average rating of 7.9. OpenNebula holds a 2.9% mindshare in CM, compared to Broadcom’s 6.2% mindshare. Additionally, 100% of OpenNebula users are willing to recommend the solution, compared to 94% of Broadcom users who would recommend it.

OpenNebula

Read 15 OpenNebula reviews

2,864 Views
2,749 Comparison Views

100% willing to recommend

VMware Aria Automation

Read 171 VMware Aria Automation reviews

8,437 Views
4,556 Comparison Views

94% willing to recommend

OpenNebula

VMware Aria Automation

Comparison Buyer's Guide

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Executive SummaryUpdated on Dec 17, 2024

VMware Aria Automation and OpenNebula are competitors in the cloud management space. VMware Aria Automation holds the upper hand with extensive automation features and robust integration capabilities, which can be critical for enterprises seeking comprehensive cloud management.

Features: VMware Aria Automation's standout features include mass parallel administration, remote CLI access, and vendor-specific integrations such as SaltStack for faster deployment. It offers advanced orchestration capabilities and is particularly strong in cloud management. OpenNebula's simplicity and lightweight design are key features, making it highly suitable for straightforward deployments. It effectively supports various hypervisors and is preferred for on-premises deployments.

Room for Improvement: VMware Aria Automation requires better documentation, more intuitive UI, and enhanced template management. There's also a need for improved integration with platforms like Azure. OpenNebula needs enhancements in documentation and managing complex environments, alongside improvements in its marketplace and template creation support.

Ease of Deployment and Customer Service: VMware Aria Automation supports both on-premises and hybrid environments, offering knowledgeable technical support, although it can vary in responsiveness due to customization capabilities. OpenNebula is user-friendly for on-premises deployments and relies on community-based support, which is collaborative but lacks direct support compared to VMware's tiered system.

Pricing and ROI: VMware Aria Automation is a paid product and is often seen as expensive but provides valuable features and integration capabilities that can justify the cost for enterprises. It offers potential ROI through improved automation and reduced deployment times. OpenNebula, being open-source, offers a cost-effective alternative with lower overhead, providing good value for those seeking flexibility without significant investments, though potentially offering less enterprise-level functionality.

To learn more, read our detailed OpenNebula vs. VMware Aria Automation Report (Updated: February 2026).

Buyer's Guide

OpenNebula vs. VMware Aria Automation

February 2026

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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

9th

Average Rating

8.2

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

No ranking in other categories

VMware Aria Automation

Ranking in Cloud Management

3rd

Average Rating

8.0

Reviews Sentiment

6.8

Number of Reviews

171

Ranking in other categories

Configuration Management (7th), Network Automation (6th), Cloud Security Posture Management (CSPM) (20th), Cloud Infrastructure Entitlement Management (CIEM) (5th)

Mindshare comparison

As of February 2026, in the Cloud Management category, the mindshare of OpenNebula is 2.9%, down from 8.3% compared to the previous year. The mindshare of VMware Aria Automation is 6.2%, down from 11.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Cloud Management Market Share Distribution
Product	Market Share (%)
VMware Aria Automation	6.2%
OpenNebula	2.9%
Other	90.9%

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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reviewer2597814

IT Infrastructure Manager at a insurance company with 501-1,000 employees

Compliance is maintained effectively and automation boosts productivity but further improvements in full-time reduction are desired

I am still using VMware tools. In fact, I have to migrate to a new alternative. I do not deal with vCenter or vSphere as or other VMware products yet. I do not deal with vSphere either. I do not use the Horizon Cloud yet or Horizon Desktop. We use VMware Workstation and vRealize. I use vRealize. VMware Aria Automation is compliant. It is not difficult for them. The regulations request us to perform or to have some security managed ways, and the regulations are clear about that, including authentication and everything related to security. Based on my experience, I rate VMware Aria Automation an eight out of ten.

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Quotes from Members

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

Pros

"With a single click, we could set things up and initiate them."

"What's best about OpenNebula that people like is that it's easy to deploy. It's also easy to manage. It's interesting because people choose OpenNebula over other solutions because of the ease of management."

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

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

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

"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."

"The ability to use it almost like a public cloud for an organization is a big asset, as it will create a value proposition and can control costs in a great way."

"OpenNebula has very good integration with SAP Storage."

More OpenNebula pros

"Our speed of provisioning has improved. We used to build systems manually, which would take four hours or a day. Nowadays we're able to spin something up off a template... and it takes about 20 minutes."

"The product's most valuable features are ease of automation."

"The DevOps for infrastructure capabilities has saved time for our developers by automating processes and reducing provisioning time. Task time has been reduced by 40 percent."

"We also use it to pre-install the applications that the people selected when they ordered the machine, so they get a fully functional machine."

"Instead of only deploying templates, we can deploy blueprints which are easier on day-to-day operations."

"quality-of-latest-release; Compared to the earlier versions, from my experience, the upgrade process is easier; for example, the compatibility checks. I also don't need to go and find out the resources that are required. It tells me in one report what the current environment is like and, if I want to go to the next level, what things I need to take care of. Based on that I can make things happen."

"VMware Aria Automation has made a lot of things easier. It has really helped the operations team to spin up the virtual machines."

"I find the system to be intuitive and user-friendly. In general, I'm quite happy with the entire setup. Once you configure the system, navigating the portal is pretty simple. They use a lot of the vSphere UI interface structure so it's intuitive, especially if you have used anything vSphere-related before."

More VMware Aria Automation pros

Cons

"There are no payment gateways in OpenNebula."

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

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

"Most of the competitors are offering some sort of billing software to transform their installation to work as a small-sized public cloud, but those offerings from OpenNebula are still missing."

"The front-facing API can be improved to support lots of requests when the platform is huge with lots of virtual resources."

"They have been saying for the past two and a half years that they would develop a feature to hot-add RAM and CPU, but it does not work."

"They should add more features like object storage."

"It should have a simple REST API like most other tools. It's the industry standard format. An XML-RPC API gives you an XML document that you have to convert and then do something with that. REST API endpoint provides outputs in a JSON document. I would also like to see support for user data or heat templates, which OpenStack offers, but OpenNebula doesn't have this yet."

More OpenNebula cons

"The product's features for hybrid cloud integration could be better."

"I don't find the solution to be intuitive and user- friendly. The GUI is really complicated. Tracking down logs and errors is very hard. Then, it takes a specialized JavaScript person to build. Also, I'm not sure how the upgrades are going now, but they definitely need to evolve the upgrade process. Finally, the logs are very generalized. Giving more of an indicator of what's actually going wrong, rather than just a generic error code, would help."

"We do not utilize the orchestration capabilities."

"Most of the time the upgrade experience has been good but sometimes things break after upgrading. For example, some API codes stopped working."

"The initial setup was not straightforward. It was not simple, and we had a PoC. We had VMware help us deploy it, and it took them an exorbitant amount of time."

"Our primary challenge is upgrading the product to the latest version. This process requires careful communication with the vendor to mitigate risks."

"Broadcom has acquired the tool, which could lower its pricing. Many customers are moving away from VMware infrastructure towards enterprise systems like Azure or AWS. This shift could be due to two main reasons: pricing and uncertainty about the future, especially regarding how Broadcom will handle licenses and strategy."

"The upgrade process 6.x to 7.3 was a significant effort. I'm hoping that 7.3 to the next version is much smoother."

More VMware Aria Automation cons

Pricing and Cost Advice

"The solution is open source so is free."

"OpenNebula gives good value for money."

"VRA is very expensive but OpenNebula is free."

"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."

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

"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."

"From the customer perspective, the value was worth it."

"They should provide one license for all the sub-products."

"It is an expensive product. After VMware's acquisition by Broadcom, there was a rise in the price of VMware Aria Automation."

"The solution has helped to increase infrastructure, agility, speed, and provisioning in the time to market."

"I would rate the pricing a ten out of ten, with ten being very expensive."

"vRealize automation really should be a front door to the whole VMware suite of products."

"The solution is free of cost."

"We have seen significant ROI. We used to have physical servers, it took 90 days to get a server, order it, buy it, and get it in. We have it down to 10 minutes, building a server with virtualization, and now that's too slow. So, we let the customer do it at their speed. Therefore, it is pretty much up in a couple of minutes and they have a server."

More VMware Aria Automation pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

13%

Financial Services Firm

10%

University

Comms Service Provider

Financial Services Firm

11%

Manufacturing Company

10%

Computer Software 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	32
Midsize Enterprise	24
Large Enterprise	130

Questions from the Community

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 is your primary use case for OpenNebula?

Previously, we were using VMware, but recently, we've started using OpenNebula for cloud management. As a big cloud provider, it helps give customers increased control over their clusters. We use L...

See all answers

What advice do you have for others considering OpenNebula?

I recommend it, especially if you need a management interface for a small to medium private cloud. I would rate OpenNebula an eight out of ten.

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 there any way to try VMware Aria Automation for free?

When it comes to VMware Aria Automation, you have three choices for free runs: Hands-on Lab (HOL) Advanced lab A free trial I cannot describe in detail the second and third options as my company ...

See all answers

Which sectors can benefit the most from VMware Aria Automation?

I was looking at VMware Aria Automation case studies recently and I got the impression that three main kinds of companies were using it most often: Social organizations Financial institutions and ...

See all answers

Comparisons

CloudStack vs OpenNebula

Compared 30% of the time

Nutanix Cloud Manager (NCM) vs OpenNebula

Compared 11% of the time

VMware Cloud Director vs OpenNebula

Compared 6% of the time

Morpheus vs OpenNebula

Compared 6% of the time

Sangfor HCI - Hyper Converged Infrastructure vs OpenNebula

Compared 4% of the time

More OpenNebula Competitors

Red Hat Ansible Automation Platform vs VMware Aria Automation

Compared 14% of the time

VMware Aria Operations vs VMware Aria Automation

Compared 8% of the time

Morpheus vs VMware Aria Automation

Compared 7% of the time

Nutanix Cloud Manager (NCM) vs VMware Aria Automation

Compared 4% of the time

Perforce Puppet vs VMware Aria Automation

Compared 2% of the time

More VMware Aria Automation Competitors

Product Reports

Buyer's Guide

OpenNebula

January 2026

Download OpenNebula product report

Buyer's Guide

VMware Aria Automation

January 2026

Download VMware Aria Automation product report

Also Known As

No data available

VMware vRealize Automation, vRA, VMware DynamicOps Cloud Suite, SaltStack

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 Automation is a cloud management tool that allows companies to simplify their cloud experience through a modern automation platform. The solution is designed to deliver self-service clouds, multi-cloud automation with governance, and DevOps-based security and infrastructure management. It helps organizations improve IT agility, efficiency, and productivity through its various features.

VMware Aria Automation has multiple use cases that include the following:

Self-service multi-cloud: VMware Aria Automation can be used to deliver consistent self-service consumption. Another use case in this area is for delivering infrastructure across VMware Clouds as well as public clouds.
Multi-cloud governance: The solution can be used to manage cost, performance, networking, configuration, and security at scale for multi-cloud environments. VMware Aria Automation offers all this with an everything-as-code approach.
DevOps for infrastructure: Through VMware Aria Automation, companies can enable a powerful infrastructure as code platform with support for iterative development and infrastructure pipelining.
Kubernetes automation: Users can utilize VMware Aria Automation to automate the management of Kubernetes clusters and namespaces with support for vSphere with Tanzu.
Security operations: VMware Aria Automation facilitates event-driven automation to deliver full-service IT system compliance enforcement and vulnerability remediation.

VMware Aria Automation Features

VMware Aria Automation has various features that allow users to easily perform operations. Some of the solution's capacities include:

VMware Cloud agnostic template: This feature allows organizations to use a single cloud template to deploy with Infrastructure as a Code. Deployment options include VMware Cloud as well as major public cloud platforms such as Amazon AWS, Microsoft Azure, Google Cloud, and more.
Extensibility and customization: This VMware Aria Automation feature allows users to get full extensibility and customization. This can be achieved through Aria Automation Orchestrator, Action-Based Extensibility (ABX), and built-in integrations with common third-party tools.
Self-service multi-cloud: This feature enables users to request and provision infrastructure resources. It can be done across clouds using a unified and consistent Infrastructure as a Service (IaaS) consumption layer, idempotent REST API, and self-service catalog.
Centralized policies and governance: VMware Aria Automation offers a feature for users to manage multiple clouds with templatized cloud and policy definition, automated remediation, and cloud environment visibility.
Configuration management: Through this feature of the product, day 1 and 2 control can be achieved for virtualized and cloud environments. This can be done with intuitive configuration automation, compliance enforcement, and vulnerability remediation.
Infrastructure pipelining: Through this feature, organizations can access user-friendly release automation pipelines. They can be specifically tailored for CI/CD in infrastructure use cases.

VMware Aria Automation Benefits

VMware Aria Automation offers its users various benefits. Some of the biggest advantages that the solution brings to companies that utilize it include:

VMware Aria Automation provides faster time to market for companies through offloading manual tasks with advanced workflows and agile templating.
The solution offers high levels of security and control.
This product is suitable for beginners, as it offers a self-service consumption experience for users.
VMware Aria Automation accelerates innovation through Infrastructure as Code and DevOps principles.
The product provides users with flexibility, as it is compatible with the most popular public cloud solutions.
The solution offers fast deployment because of all natively integrated functions.

Reviews from Real Users

Awais J., CTO/CEO at a tech services company, likes VMware Aria Automation because it saves a lot of time, provides more visibility, and has extensive automation capabilities.

An IT consultant at a government rates VMware Aria Automation highly because the product gives you flexibility to analyze and consume resources.

Broadcom

Sample Customers

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

Rent-a-Center, Amway, Vistra Energy, Liberty Mutual

Buyer's Guide

OpenNebula vs. VMware Aria Automation

February 2026

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