Compare Dell EMC Unity vs. IBM FlashSystem

Dell EMC Unity is ranked 1st in All-Flash Storage Arrays with 123 reviews while IBM FlashSystem is ranked 15th in All-Flash Storage Arrays with 7 reviews. Dell EMC Unity is rated 8.4, while IBM FlashSystem is rated 8.2. The top reviewer of Dell EMC Unity writes "Hits a sweet spot for us between price point and the amount of storage and performance". On the other hand, the top reviewer of IBM FlashSystem writes "A scalable, stable solution that offers very good performance". Dell EMC Unity is most compared with NetApp AFF (All Flash FAS), Nimble Storage and HPE 3PAR Flash Storage, whereas IBM FlashSystem is most compared with Dell EMC Unity, Pure Storage FlashArray and Dell EMC XtremIO Flash. See our Dell EMC Unity vs. IBM FlashSystem report.
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Dell EMC Unity Logo
38,967 views|29,008 comparisons
IBM FlashSystem Logo
5,489 views|4,275 comparisons
Most Helpful Review
Find out what your peers are saying about Dell EMC Unity vs. IBM FlashSystem and other solutions. Updated: September 2019.
366,239 professionals have used our research since 2012.
Quotes From Members

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

Pros
The All-Flash models are pretty fast for the vast majority of our remote workloads.We use replication for disaster recovery (DR), making our DR process much easier.It has reduced complexity.We have resolved IT challenges with this solution. It sped up our environment. We went from spinning disk to all-flash, which reduced our footprint.It has good performance.We can get almost real-time response times.The most valuable thing for our use case is the flexibility to have multiple-protocol support.It is pretty stable. I like the stability, because everything works like it should. We made it all redundant. So, we don't have anything to worry about.

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We are a 100% satisfied with the stability of the solution.Stability-wise, this solution is fine.The feature I find most valuable, is the deduplication, because the nature of the data that we are using in our current environment, has a lot of replicated data.The performance of the All-Flash System is very good. There is more enhanced performance and data production in the solution, which I appreciate.The initial setup was really straightforward. It was not complex. Deployment took one month, due to the data migration duration.The FS900 uses custom built flash modules offering with better latency, and is also denser packed then most modular all-flash arrays using commodity SSDs.An easy interface to set up, good build quality, and easily accessible parts for hot swapping combined with sub 500 us latency under heavy load.The initial customer technical support was efficient and effective.

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Cons
We would like to see the concept of Storage Groups brought back to this product line.I haven't seen the roadmap for this solution.It is missing some features, like deduplication.Because we can do synchronous replication between the two sites, this made the setup challenging for this piece. They did not know how to set this up initially. We ended up having to do bidirectional synchronous replication.I would like them to continue to build on the solution and expand on the functionality, like replication.We'd like to see a cheaper version of an all-flash array in that footprint.I would like to have secure mobile connectivity going forward. This would help me be more proactive.If you compare it with VMAX, where we communicate with the box through Solutions Enabler and there are a lot of commands and a lot of flexibility, the command line for Unity needs to enhanced.

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I think the only thing the developers can look at, is that it is limited to 25 gigabytes currently. In the next release they might want to increase that.This solution needs a management console where we are alerted to issues and can report them, or escalate them through email or another method.I would like to see an improvement in the handling of large amounts of rights.The solution is not easy to implement. It takes a lot of time to study the product and it's a little complicated in general.The solution is not able to replicate data in one-to-many scenario.When we performed some HW fault tests under heavy load, we found that some of the parts (fan units and PSUs) should only be removed from the airflow for a short time (less than a minute) when replacing.Include an option to upload the support package to the IBM ECuRep when opening an IBM PMR.

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Pricing and Cost Advice
Our CAPEX was close to $42,000 and operating costs are below $1000.Our costs are roughly $200,000 a year.The solution is extremely functional for the price that we pay for it. It is worth the investment.We purchased a five-year warranty.Compression is making a difference towards the amount of hardware that we need to purchase.The return on the investment was simply speeding up our entire vSphere stack, which allowed our developers and engineers to get their workloads done faster and simpler. We were experiencing VM snapshot times of 45 minutes to two or three hours, and it shrunk it down to under five minutes.It scales, but then you have to buy additional stuff.With the large Unity that we bought, it has saved us about one and a half rack space. That's our return on investment on our flash array. We also need less Fibre Channel connectivity.

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For a yearly license, it is about $100,000. There are no additional costs. The entire system is included.

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Answers from the Community
Miriam Tover
Scott McCreadyUser

EMC's Unity is not comparable to the performance of an IBM FlashSystem option, but it is fairly close in performance profile to the just released Storewize V5100 model 424. If you provide the initial amount of storage you are going to purchase and your expected capacity growth rate, plus any workoad/performance info you have on hand, and we will give you a very quick TCO and performance comparison.i

17 April 19
Ranking
1st
Views
38,967
Comparisons
29,008
Reviews
120
Average Words per Review
484
Avg. Rating
8.4
15th
Views
5,489
Comparisons
4,275
Reviews
4
Average Words per Review
487
Avg. Rating
8.5
Top Comparisons
Compared 15% of the time.
Compared 25% of the time.
Also Known As
EMC Unity
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Dell EMC
IBM
Overview

Dell EMC Unity, powered by Intel Xeon processors, delivers the ultimate in simplicity and value, enabling your organization to speed deployment, streamline management and seamlessly tier storage to the cloud.

Dell EMC Unity’s All-Flash and Hybrid Flash storage platforms optimize SSD performance and efficiency, with fully integrated SAN and NAS capabilities. Cloud-based storage analytics and proactive support keep you available and connected.

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.
Offer
Learn more about Dell EMC Unity
Learn more about IBM FlashSystem
Sample Customers
Information Not Available
Celero, Friedhelm Loh Group, Clarks, Mingkang Natregro Health Food Group, Sofia, Etisalat Fights Fraud, UF Health Shands Hospital, Generali, Elecon Engineering Company Limited, Ventiv , Technology, CPFL Energia, Royal Caribbean Cruises Ltd., SciQuest, Coca-Cola Bottling Co. Consolidated, Paddy Power, Kelsey-Seybold Clinic, Interconnect Services, Severstal IP-Only AB, PVU Group GmbH
Top Industries
REVIEWERS
Financial Services Firm21%
Healthcare Company16%
Manufacturing Company14%
Government5%
VISITORS READING REVIEWS
Software R&D Company17%
Financial Services Firm10%
Manufacturing Company9%
Insurance Company8%
REVIEWERS
Financial Services Firm45%
Comms Service Provider18%
Government18%
Recruiting/Hr Firm9%
VISITORS READING REVIEWS
Financial Services Firm27%
Software R&D Company17%
Government15%
Media Company7%
Company Size
REVIEWERS
Small Business24%
Midsize Enterprise26%
Large Enterprise50%
VISITORS READING REVIEWS
Small Business25%
Midsize Enterprise30%
Large Enterprise45%
REVIEWERS
Small Business44%
Midsize Enterprise12%
Large Enterprise44%
Find out what your peers are saying about Dell EMC Unity vs. IBM FlashSystem and other solutions. Updated: September 2019.
366,239 professionals have used our research since 2012.
We monitor all All-Flash Storage Arrays reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.
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