We performed a comparison between Dell Unity XT and VIOLIN QV2020 [EOL] 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."The duplication algorithm allows us to get a lot more use out of less storage. We're running a five terabyte array right now and we're running probably about 30 terabytes on it. So the duplication rate is pretty phenomenal, without a cost to performance. It still runs pretty smoothly."
"One of the best features is the support, which is excellent."
"Pure FlashArray X NVMe has low latency and high Ops. It is an evergreen model."
"Technical support has been helpful and responsive."
"The initial setup was extremely simple and straightforward."
"Overall stability is very good. It is a very stable solution."
"The most valuable feature of this solution is reliability."
"Pure FlashArray X NVMe helps to improve our processing speed. It is user-friendly and easy to use."
"It is very stable."
"The most valuable features include snapshots, Thin Clones, and deduplication and compression."
"Key features are ease of use, ease of management, ease of deployment, and the GUI is very user-friendly."
"The most valuable features of Dell Unity XT are the data compression for all of our VMs up to four times and the performance is good."
"Its main advantage over vSAN was the rebuild, the intelligence of the restoration in the event of a hardware drive failure and, of course, the all-flash solution."
"The NAS capability is mainly what we're looking for from this product, and being able to recover fast in DR."
"A lot of the Unisphere interfaces are greatly improved in terms of monitoring capabilities, alerting, and ease of use. Setting up the storage and the file system are all just a few clicks away."
"Veeam Backup integration: Veeam is the defacto standard for backing up of virtual environments."
"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."
"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."
"The software layer has to improve."
"I'd like to see the product implement active replication for vehicles such as VMware."
"We need better data deduplication."
"In the next release, I would like to see real-time analytics for further insight into consumption models."
"It is on the expensive side."
"I want to see Pure Storage not only be for fast storage, but I want to see it be for the entire data center."
"I would like to see replication and DR features in the next release of this solution."
"We have run into a couple of instances recently where we are running out of space. So we have had to buy some more packs for it and they have deployed fine and it has increased smoothly."
"Ordering is easy, but the processing site and working with those companies was difficult."
"Maybe deduplication would be something that would be better to have. Also, it's a fairly new management interface, so work is still being done on that. But compared to other vendors and previous EMC storage, the Unity is really good."
"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."
"The NAS capabilities of Unity - I have to say there are a lot of things I miss. For example, deduplication for hybrid. I have tons of customers with VNX and dedupe. These customers achieve around 50% dedupe efficiency and they mostly use them for archive. If you're talking about 50TB of NAS, which is stored in a 25TB repository, which is very economical, and you can not provide that in a Unity hybrid box, you have problems."
"This solution would be improved with the addition of flexible raid volumes."
"On the data domains - for the Unity product, but specifically for data domain - I would like a much easier interface for managing, for actually going in and having one place where I could get all of the different parts of the overall unit. And I would also like to be able to identify individual disks a lot more easily."
"There's always room for improvement with the UI. That can be a little cumbersome at times."
"There is an issue with data duplication occurring on the flash memory. It should be improved. Timely updates and upgrades to the latest versions would be great."
"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 189 reviews while VIOLIN QV2020 [EOL] is ranked 28th in All-Flash Storage with 2 reviews. Dell Unity XT is rated 8.4, while VIOLIN QV2020 [EOL] 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 [EOL] 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, Pure Storage FlashArray and IBM FlashSystem, whereas VIOLIN QV2020 [EOL] is most compared with Nutanix Cloud Infrastructure (NCI).
See our list of best All-Flash Storage vendors.
We monitor all All-Flash Storage 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.
