


IBM FlashSystem and Nutanix Unified Storage (NUS) are leading contenders in the enterprise storage market. IBM FlashSystem is rated higher for features and pricing, while Nutanix Unified Storage stands out in deployment and customer service.
Features: IBM FlashSystem users value its high performance, data reduction capabilities, and integration ease. Nutanix Unified Storage users appreciate its scalability, consolidated management, and versatile workload support.
Room for Improvement: IBM FlashSystem users suggest enhancing its replication capabilities, simplifying licensing, and improving analytics. Nutanix Unified Storage users recommend better analytics, reducing node size, and enhancing hardware optimization.
Ease of Deployment and Customer Service: IBM FlashSystem is praised for its smooth deployment process but requires consistent support. Nutanix Unified Storage is noted for its straightforward setup and excellent customer service.
Pricing and ROI: IBM FlashSystem users feel it provides strong ROI due to its competitive pricing and performance. Nutanix Unified Storage users recognize good ROI but indicate higher upfront costs.
If you wait more than seven years to buy another one, you get a return on your investment.
The solution can comfortably be stretched from five to seven years without any failures, ensuring a long-lasting return.
We have seen return on investment compared to other OEMs, which took approximately three years after implementing IBM FlashSystem.
For me, the biggest return on investment when using this solution is that we do not have to have much support staff to run it.
The scalability challenge with previous systems is lessened with Nutanix since we can expand by adding new hardware without needing migrations.
We are saving approximately 20% to 25% compared with the competition.
Customers always have their issues resolved promptly.
Technical support is good at least through vendors, not directly with the principal.
Customers of alternatives like Dell and Hitachi enjoy more reliable and comprehensive support services directly from vendors rather than third-party subsidiaries.
I rate the technical support from IBM as a ten.
IBM customer support is responsible, efficient, and responsive, though it is expensive.
They come on the call, start troubleshooting immediately, and resolve issues effectively.
They are very knowledgeable, and if they can't solve the problem, they find the answer within a day or so.
I would give the customer service and technical support a ten out of ten.
It hasn't broken down anytime in the last six to seven years, despite hurricanes, earthquakes, and power outages.
For larger enterprises, scalability is an issue as the price becomes prohibitive.
The problem arises when migrating data to a later IBM FlashSystem version due to issues with firmware compatibility.
The scalability of IBM FlashSystem is exceptional, and I rate it as a nine.
This means you don't have to buy everything upfront; you can buy what you need and add more as you grow, which is advantageous.
These three components utilize scalability tools, enabling storage addition to nodes and supporting independent, linear performance growth.
I find the scalability of Nutanix Unified Storage (NUS) to be excellent, and I would rate it a ten based on my clients' requirements.
I would rate the stability of the product at seven out of ten.
Customers have infrastructure that is 100% stable.
The firmware and software engine have fewer bugs, which enhances operational efficiency.
We have not experienced these issues with Nutanix, which I attribute to the all-flash technology, the quality of their platform, and the responsiveness of the hyper-converged infrastructure.
Nutanix Unified Storage (NUS) is very stable.
It automatically triggers tasks, causing performance issues.
One way to improve the product is to add an operational assistant that doesn't depend on VMware.
I would like to see some AI features that would allow arrays to intelligently identify threats or unusual behavior in the data pattern and give an alert.
Storage replication should be essential.
Despite marketing promises, these features do not function effectively and can impact performance.
There is room for improvement in the troubleshooting part, specifically related to IBM Spectrum for Insight.
An additional function that could be helpful is reducing the time it takes to delete volumes, especially if they are compressed or deduplicated.
The main concern is pricing, which could deter some customers; addressing this would enhance its appeal.
The system should move towards AI-driven optimization and enhance S3 object storage capabilities.
System downtime can disturb the entire ecosystem and impact all applications.
While the prices may be higher than those of other vendors, we see it as a market leader with benefits.
The support can be a bit pricey, but the solution is more cost-effective than anything else out there.
To install or upgrade any software features, the cost is high, which makes it challenging for smaller companies who do not require advanced features like deduplication or compression typically needed by larger organizations.
The pricing is high; storage solutions are always expensive.
Compared to buying three or four vendor solutions, it is much cheaper.
The cost has doubled for the same amount of data, which was a challenge when presenting use case justifications for the increased cost.
Nutanix Unified Storage (NUS) has definitely helped reduce our total cost of ownership.
Its data compression feature is the best that we have ever seen.
Pure FlashArray X NVMe helps to improve our processing speed.
We are satisfied with the performance as it is significantly faster compared to traditional storage options.
There is a significant amount of data reduction, achieving a ratio of one to three.
The most valuable features are performance and reliability.
There is built-in compression, a data reduction feature, and artificial intelligence-driven insights that calculate warnings and errors to redirect to customers automatically.
Nutanix Unified Storage (NUS) is appreciated for its fault tolerance and redundancy at the cluster level, which ensures reliable storage of files, folders, and other information accessible on the client side.
The cybersecurity features of Nutanix Unified Storage (NUS) when dealing with unstructured data, such as ransomware threats, provide the ability to detect and back up block-based storage, allowing me to restore repositories or sets of block storage with one button click, which is automatic.
My experience with using Nutanix Unified Storage (NUS) for data-intensive workloads is that we have many SQL Servers and they perform much better than they did when we used hybrid converged previously.
| Product | Market Share (%) |
|---|---|
| Nutanix Unified Storage (NUS) | 0.8% |
| IBM FlashSystem | 5.8% |
| Pure FlashArray X NVMe | 1.4% |
| Other | 92.0% |



| Company Size | Count |
|---|---|
| Small Business | 15 |
| Midsize Enterprise | 11 |
| Large Enterprise | 12 |
| Company Size | Count |
|---|---|
| Small Business | 47 |
| Midsize Enterprise | 21 |
| Large Enterprise | 59 |
| Company Size | Count |
|---|---|
| Small Business | 26 |
| Midsize Enterprise | 30 |
| Large Enterprise | 64 |
Pure Storage FlashArray//X is the world’s first enterprise-class, all-NVMe flash storage array. It represents a new class of storage – shared accelerated storage, which is a term coined by Gartner – that delivers major breakthroughs in performance, simplicity, and consolidation.
IBM FlashSystem products are enterprise computer data storage systems that store data on flash memory chips. Unlike storage systems that use standard solid-state drives, IBM FlashSystem products incorporate custom hardware based on technology from the 2012 acquisition of Texas Memory Systems. This hardware provides performance, reliability, and efficiency benefits versus competitive offerings.
Nutanix Unified Storage offers seamless scalability and high availability with a user-friendly interface, supporting multi-protocol operations while integrating effortlessly with cloud platforms. It enhances performance and security with features like ransomware protection and advanced data management.
Nutanix Unified Storage streamlines storage management by consolidating infrastructure and optimizing virtualization. It reduces operational complexity and enhances performance across diverse workloads. Despite feedback on integration challenges and suggestions for improving pricing, API capabilities, and security, it remains a key choice for dependable storage solutions. Calls for streamlined implementation and enhanced AI capabilities reflect its potential to better support evolving organizational strategies, driving cost efficiency and data accessibility.
What are the key features of Nutanix Unified Storage?In industries, Nutanix Unified Storage is deployed to centralize storage needs, improve database efficiency, and enhance file sharing and security. Organizations use it to consolidate infrastructure, support virtualization, optimize costs, and facilitate virtual machine hosting. It's instrumental in scalable object storage, ransomware protection, integrating legacy systems, and catering to critical applications.
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