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Rackspace OpenStack vs VMware vSAN comparison

 

Comparison Buyer's Guide

Executive Summary

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

Rackspace OpenStack
Average Rating
8.0
Reviews Sentiment
7.7
Number of Reviews
12
Ranking in other categories
Converged Infrastructure (7th)
VMware vSAN
Average Rating
8.4
Reviews Sentiment
6.1
Number of Reviews
234
Ranking in other categories
HCI (2nd)
 

Mindshare comparison

While both are Storage Solutions solutions, they serve different purposes. Rackspace OpenStack is designed for Converged Infrastructure and holds a mindshare of 6.1%, up 3.9% compared to last year.
VMware vSAN, on the other hand, focuses on HCI, holds 11.4% mindshare, down 16.4% since last year.
Converged Infrastructure Market Share Distribution
ProductMarket Share (%)
Rackspace OpenStack6.1%
FlexPod XCS12.6%
HPE ConvergedSystem12.3%
Other69.0%
Converged Infrastructure
HCI Market Share Distribution
ProductMarket Share (%)
VMware vSAN11.4%
VxRail13.8%
Nutanix Cloud Infrastructure (NCI)8.8%
Other66.0%
HCI
 

Featured Reviews

Hai Dinh Van - PeerSpot reviewer
Cloud Center Manager at FPT
Open-source nature enables seamless cloud management and customer transition
We deploy layer three managed services, and our customers manage layer two services. We combine the two-layer services and deliver them to our customers The open-source nature of OpenStack provides significant value. It allows for three-word cloud management, maintaining a stable customer…
ShyamikaThamel - PeerSpot reviewer
Associate Tech Specialists at Seatrium
Managing mixed RAID workloads has improved data protection and delivers strong performance
VMware vSAN can be improved in certain areas. In cases involving our large data stores with large VMs, we experience some latency, not during normal operation, but during database backup operations. We observed latency due to buffer issues from the top-of-the-rack switches. These issues are mostly network-related because all storage data traffic travels through the network. I have recently used Nutanix, and I observed that Nutanix provides better performance than VMware vSAN due to its data locality features. VMware vSAN is now providing data locality, but we did not use that option. If VMware vSAN provides additional features in the next release, such as the VM balancing feature called DRS on the cluster that VMware previously had, it would be beneficial. With DRS, VMs can move easily from one node to another within the same cluster. Nutanix does not provide that flexibility. When placing a VM on a cluster in Nutanix, the placement uses a balancing component. After that, the VM remains on the same host. If any contention occurs on the CPU or memory side, the VM stays in place until contention happens. If issues occur, the VM migrates to another host while transferring all objects to the same host. This is how their data locality is maintained. When a VM moves to any host, it moves with all VM objects. VMware vSAN does not currently offer this option. If a VM moves to another host, it accesses the disk object through the network, which increases latency. VMware vSAN now offers an option to select data locality, but it does not function like Nutanix. This is why some latency remains. If VMware vSAN can improve this feature, it would be very helpful and VMware would regain its top position.

Quotes from Members

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

Pros

"It was a very flexible and scalable solution. It was very useful because we were not dependent on a single vendor's solution. Increasing the number of machines or changing the hardware configuration was very easy."
"The open-source nature of OpenStack provides significant value."
"The most valuable feature is the customization. With the customization you can really give the customers what they want."
"Rackspace OpenStack is stable and reliable, often compared favorably against other solutions."
"I like its integration with GitLab and its simplicity. OpenStack has a lot of third-party libraries that it uses."
"Administrators are very comfortable with the functionality and services OpenStack offers."
"The initial setup isn't too difficult."
"It created a reusable library with OpenStack features."
"We didn't only choose vSAN; we chose VMware because of SR-IOV, which is more on the hypervisor level and not on the vSAN storage. It's part of the whole system."
"The features of vSAN allow us to reduce our operational complexity to a large degree."
"The most valuable feature is fhe flexibility, the ability to move the machines around without hesitation."
"Stability-wise, I rate the solution a ten out of ten."
"The product is highly scalable and significantly supports our organization's needs."
"Stretched Cluster is one of the big features that we use across multiple data centers."
"It allows us to put our infrastructure in remote locations and still get the same performance we get from our onsite SAN solutions."
"All the features are working great."
 

Cons

"It could use more examples in different languages (API use cases).​"
"OpenStack is difficult for the novice in terms of beginning to use cloud tools."
"The line migration is a problem."
"The deployment process could be easy."
"The pricing of Rackspace is quite high in the Vietnam market."
"So for the main stability, there have been a couple of issues that I've experienced."
"VMware has a side-to-side replication feature, which is still more mature than Rackspace OpenStack's which can't be used in a production environment."
"OpenStack's UI, while user-friendly, could be improved to offer a more intuitive experience."
"Troubleshooting tools could be improved."
"There's already a concern with VMware with ransomware and security issues. VMware could focus on improving security."
"Customers who are using Essentials Plus or even Essentials have to pay for technical support. However, they should not have to pay for support."
"There is room for improvement in vSAN's ability to debug. When it's not working well, debugging becomes quite challenging. Identifying issues when it's lagging or not functioning properly can be difficult."
"Reporting currently depends on third party applications and that could be improved."
"If one node out of your ten nodes fails, it takes a lot of time to replicate and rebalance VMware vSAN. This time can be reduced. When a node fails and the data is not accessible, vSAN has to be rebalanced to make the redundancy level of two again. However, if it is taking a lot of time and any other hardware fails during that time, then we have a problem. Two disk failures mean that all data will be lost, and we may have to recover it from the backup. So, the number of threads that run to do the rebalancing could be more so that the time taken to make it fully redundant again is not so much."
"The interface is a little complicated, it could be simplified with more graphical gadgets. We have many servers, and the built-in functions, such as rate configuration, are a bit complex."
"The UI could certainly be better. The inside into what's actually going on with vSAN would be nice to know."
 

Pricing and Cost Advice

"The pricing is low."
"I use it as an open-source tool."
"Basically, vSAN is a license in addition to that of the classic VMware Vsphere, which is also mandatory."
"There is a license required for this solution, it is a one-time payment. However, if they want support for the solution, it can be paid annually or for three years."
"VMware vSAN is an expensive platform. We purchase its yearly license."
"With vSAN, we didn't find the market that competitive."
"This solution requires the purchase of a license."
"The first 1-2 years of purchasing vSAN will be expensive. Thereafter, the longer you are running it, the more cost savings you will have."
"It is fairly cost-effective for entry to mid-level performance based on the underlying hardware components."
"For a classical node plus storage solution, the price is higher."
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Top Industries

By visitors reading reviews
Computer Software Company
17%
Manufacturing Company
15%
Government
8%
Comms Service Provider
7%
Computer Software Company
12%
Manufacturing Company
11%
Financial Services Firm
9%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise3
Large Enterprise5
By reviewers
Company SizeCount
Small Business100
Midsize Enterprise58
Large Enterprise129
 

Questions from the Community

What needs improvement with Rackspace OpenStack?
The pricing of Rackspace is quite high in the Vietnam market. It would be beneficial to see developments in features like threat prevention and analytics tools for network security within OpenStack.
What is your primary use case for Rackspace OpenStack?
We deploy layer three managed services, and our customers manage layer two services. We combine the two-layer services and deliver them to our customers.
What advice do you have for others considering Rackspace OpenStack?
I would rate Rackspace OpenStack an eight out of ten. This solution effectively maintains a stable environment and provides excellent customer support.
What Is The Biggest Difference Between vSAN And VxRail?
While both run on the vSAN technology from VMware, vSAN needs to be deployed on vSAN ready nodes while VxRail is an engineered system. The choice to choose which technology depends on two major fac...
How does HPE Simplivity compare with VMware vSAN?
HPE SimpliVity is a hyper-converged infrastructure solution that is primarily geared to mid-sized companies. We researched VMware vSAN but found HPE was a better option for us. HPE SimpliVity has ...
How does VMware vSAN compare with Microsoft Storage Spaces Direct?
We found VMware’s vSAN was easy to set up, configure, and manage compared to other solutions we considered. It is best suited for small- to medium-sized organizations. It is easy to create load bal...
 

Also Known As

OpenStack
vSAN
 

Overview

 

Sample Customers

X.commerce
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