We performed a comparison between DDN IntelliFlash and Dell Unity XT based on real PeerSpot user reviews.
Find out what your peers are saying about Dell Technologies, NetApp, Pure Storage and others in All-Flash Storage."We're getting good performance, and the compression ratio is also very good in Pure Storage FlashArray."
"The most valuable features of Pure Storage FlashArray are the management view of the solutions, ease of provision, and deprovision, it is fantastic."
"It is pretty much just plug and play. There is not that much to do with it. It is very easy to use."
"Technical support is good."
"My rating of Pure Storage is a ten out of ten because of the price for performance and footprint - the overall value."
"Provides fast access and is user-friendly."
"We've been using FlashArray's snapshot for backups. Their replication across sites and response time are also excellent."
"We have seen savings in our storage. The speed of deployment has gone from several days to a few minutes. This product has reduced that time into minutes, simplifying storage for us."
"High performance and ease-of-management are the most valuable features."
"It provides a combination of all the protocols that you need, without losing deduplication and compression."
"Data Compression: Up to 80% space reduction in the database"
"It has reduced our electricity usage by reducing the amount of disks needed for the virtual environment."
"It performed great originally, and when it performed great, it was awesome."
"It's very fast. We were seeing read latencies of less than one millisecond. It is robust."
"EasyTier/hotcaching: Valuable because it allows greater performance than standard SAS disks"
"The initial setup is straightforward."
"The replication is big for us. We use file services on Unity and it has a really nice file services interface. It's also easy to manage. It's really easy in terms of provisioning, replication. There are no real tricks to it. It's just easy."
"The initial setup was very straightforward. Migration was smooth and configuration of the storage was quick and simple. The time needed to put it into production was less than expected, and data migration itself went without a glitch."
"To be programmatically administered is huge, it is one of the key features that we like about it."
"It's an all-flash Unity, With that compression feature, it's comparable to a hybrid. That is one thing that we definitely like."
"We are happy with the way we have Dell EMC Unity XT configured."
"The Snapshot feature is key."
"On the Data Domain side, the most attractive feature is the compression ratio, which none of the other products in the market are currently able to provide. On the Unity side, what customers mostly like is the availability guarantee."
"We use replication for disaster recovery (DR), making our DR process much easier."
"This product has only two active controllers, whereas other solutions can have more. This is something that needs to improve."
"On a couple of occasions, the waiting time for an upgrade has been pretty substantial."
"We would like to be able to connect to data tape for backup, specifically to the LTO backups."
"I'd like to see a move towards individual VMs for what the performance of each VM is in a VD infrastructure. I can see the overall volume, but I would love to see things in a more granular level on the VM side."
"It is way in excess of what we need. If anything, we could see a bit more speed. I'm just comparing it with what some of my colleagues who are implementing their own systems do."
"The GUI is simplistic and basic. I feel like it's explanatory, but not enough, it needs a little more to it."
"What it needs to do is work a little closer with solutions, like VMware, so it understands the particular workloads that are on it. Today, it does not understand the applications which are running against it."
"I would like to migrate to the cloud in the future and know how that would actually work with this product."
"They need to offer better integration for a virtual platform to enable you to create hyper-converged solution."
"We had just one small stability problem with power flapping and it did not start up again automatically. We had to access service ports and manually restart the storage processors."
"Technical support is bad. It'd grade them at 30% or 40%. The response time is terrible."
"In the proxy section you can’t choose a user account and password, so it is not allowed at the moment to go out, if customer has such constellation."
"Performance is horrible now. Our original intent was to buy new storage in about two years. But since it became a critical urgency for us, we decided to purchase a new one in two or three months."
"It's somewhat scalable, but maybe not so much as some of the competition."
"Snapshots are not as easy to access as on a NetApp device."
"It only keeps one hour of real-time data without the ability to do deep analysis of each element."
"They can certainly improve in terms of monitoring."
"It should be lighter. It takes up a ton of rack space. It would be nice to have a smaller footprint."
"The one thing that we would look at would be if they were to expand the file level features, just to give us a balance or a tier between it and Isilon options out there, for unstructured data."
"The storage processors have less port expansion than previous high-end VNX arrays. Data compression is only available in all-flash pools."
"The interface can be a little challenging for someone new."
"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."
"It's not as reliable as it should be, I think it was probably released a little early. We've had production problems with customers, and there are still some challenges at scale as well. Compression is a problem for the system. Once you enable dedupe and compression, the performance of the system, the capability, halves... It has to be right-sized and sized for compression, but even with that, because there are only two storage processors, you're ending up at almost 40 percent usage."
"I would like it to be a little bit easier to contact support. We can contact support, but we have to go through a phone tree. We get routed to different places. I might call support to say that I need a drive replaced and get transferred to three different groups before I get to the group I actually need."
Earn 20 points
DDN IntelliFlash is ranked 29th in All-Flash Storage with 11 reviews while Dell Unity XT is ranked 4th in All-Flash Storage with 186 reviews. DDN IntelliFlash is rated 7.4, while Dell Unity XT is rated 8.4. The top reviewer of DDN IntelliFlash writes "Good features with an easy initial setup but technical support is slow ". On the other hand, the top reviewer of Dell Unity XT writes "Easy to set up with good data compression technology and useful deduplication". DDN IntelliFlash is most compared with VAST Data, NetApp AFF and Tintri VMstore, whereas Dell Unity XT is most compared with Dell PowerStore, NetApp AFF, HPE Nimble Storage, IBM FlashSystem and HPE 3PAR StoreServ.
See our list of best All-Flash Storage vendors.
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