We performed a comparison between Dell Unity XT and VIOLIN QV2020 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."Data deduplication is one feature I found to be the most valuable in the tool...Stability-wise, I rate the solution a ten out of ten."
"Because of the encryption, we have different storage and the encryption can go over both."
"The ease of use. That's what our customers love. They say it's very easy, they don't need special training, they don't need to call us or any other company or integrator to help them do their job. That's the main reason they purchase Pure."
"The top-tier support and reliable storage are the most valuable features of this solution."
"Very stable; no worries about how much it can handle."
"The tool has reduced our power consumption."
"One of the features that my customers are really interested in is immutable snapshots. There are immutable snapshots to which your applications can be reverted back if you are hit by some kind of ransomware threat or malicious attack. That's kind of a key deal, and it is one of the selling points I use to point out to my customers the value and the features that Pure Storage brings to the table."
"The most valuable feature of Pure Storage FlashArray is the complete set of functions it provides."
"I like that the performance is very good."
"All-flash performance, Snapshotting capabilities and replication are all valuable features."
"It's an all-flash Unity, With that compression feature, it's comparable to a hybrid. That is one thing that we definitely like."
"The NAS capability is mainly what we're looking for from this product, and being able to recover fast in DR."
"The technical support is very professional and provides quick responses."
"The most valuable aspects of this solution are its stability, performance, and ease of updating."
"It gives me the flexibility with its ability to replicate to itself and the ability to use the Dell EMC Cloud as an option. That's always sitting there and waiting if we need it."
"The valuable features of Unity include that it's flexible, has a friendly user-interface, and provides good performance."
"VIOLIN QV2020 is the latest in terms of performance. It has high-speed data access and processing capabilities, distinguishing it as a leader in its storage solutions category."
"It’s simple to use hardware to fix performance issues. Our issue is poor coding/queries. This greatly speeded things up. It’s too costly to track down poor programming in applications. The price of a developer’s time to scan through all the coding is high compared to buying Violin."
"This product has only two active controllers, whereas other solutions can have more. This is something that needs to improve."
"I can't see where they can make anything better, unless, of course, they lower their prices even more."
"Pure Storage FlashArray could improve by being more secure."
"The solution could improve by having a multi-tenant feature."
"I would like to have support available in Spanish."
"I recognize it's a difficult challenge, but I would like to see them make the pricing more reasonable."
"They could improve the price."
"They have a product, FlashBlade, which is their object storage integration, and that's something that we haven't integrated with yet. This might be an area for additional focus as it would play into scalability, because the very nature of object storage is that it's infinitely scalable."
"In future releases, I would like to see automatic upgrades from one to the next, when this system is coming out and the next one is coming in; more akin to what Pure Storage is doing. That would be really helpful."
"I would like to see better compression, better dedupe. It's not nearly as good as what is built into the XtremIO. I understand why that is the case, but if they can take some of that technology and leverage that a little bit better in the Unity array, that would be great."
"I'd like to see more of the NVMe back-end for the flash. And the big deal with the PowerMax is that they've used all U2 drives so that they can avoid having to take it down. I see using M.2 and modular sections as being a real nice alternative that could be implemented in Unity at a fairly low cost."
"Problems with I/O modules, with bugs that came out that really should have been caught before the product was released."
"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."
"Dell Unity XT could improve the compatibility of some of the features. Some of my customers had some problems. Additionally, it would be beneficial for the solution to have advanced AI and ML features."
"Thick provisioning of LUNs."
"There are a lot of things that can be done with it. It's got Cloud IQ, but I think it's not as mature as it could be, they could make it more effective. They could make it more comparable to some of the other products out there that have cloud analytics. The amount of insight that the Unity product is able to give, at this point, is okay, but not class-leading. Some of the other data-reduction technologies, like deduplication, are not to the level of other competitors and what their products provide."
"I set up Wi-Fi for storage, and since then, we haven't experienced any interruptions in service."
"VIMM replacement is poorly designed. You have to slide out an entire drawer, remove the cover and then pop out the failed VIMM. I would like to see a front replacement just like with hard disks. This leaves room for error; for example, when you slide it out from the rack, you are moving cables along the cable management arm. This leaves the possibility of accidentally unplugging a cable from the array if it is not seated properly. Also, you might pinch the cables when sliding it back into the server rack."
Dell Unity XT is ranked 4th in All-Flash Storage with 186 reviews while VIOLIN QV2020 is ranked 28th in All-Flash Storage with 2 reviews. Dell Unity XT is rated 8.4, while VIOLIN QV2020 is rated 8.0. The top reviewer of Dell Unity XT writes "Easy to set up with good data compression technology and useful deduplication". On the other hand, the top reviewer of VIOLIN QV2020 writes "Has high-speed data access and processing capabilities, distinguishing it as a leader in its storage solutions category". Dell Unity XT is most compared with Dell PowerStore, NetApp AFF, HPE Nimble Storage, IBM FlashSystem and HPE 3PAR StoreServ, whereas VIOLIN QV2020 is most compared with Nutanix Cloud Infrastructure (NCI).
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