We performed a comparison between Dell Unity XT and Lenovo ThinkSystem DM Series based on real PeerSpot user reviews.
Find out in this report how the two All-Flash Storage solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI."The speed of the Pure FlashArray is very, very fast and nothing in the market can compare to it."
"The most valuable feature is its data reduction."
"It has been very stable. I have not seen or heard of downtime storage issues after moving over to it."
"The most valuable feature is how it simplifies the management of the SAN."
"The security operating system is its most valuable feature because it's very simple, easy to use, and operate. You don't have to do very serious training to operate this equipment. It's user-friendly and pretty straightforward."
"The first set up we had was really straight forward and simple."
"This solution has improved our organization. In the past, we had reports that were taking up to two hours and after switching to SSD storage the overall processing power dropped to half an hour. The end users saw an immediate performance gain."
"The scalability is good."
"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."
"Because I always need to trouble shooting for IOPS & database (DB) performance issues. I can quickly focus on what is part of the issue. I can decrease downtime and can plan next year's extended capacity budget."
"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."
"In the hybrid version, I would say they are fast. They have fully automated storage tiering. In the all-flash version, higher performance, compression, data replication."
"Scalability is good."
"It has helped us be able to use less administrators per device or system. Therefore,we are more streamlined."
"It is lightning fast, low on power and heat, and has a small footprint with great performance."
"The most valuable feature is the performance. It's still an all-flash array at a good price point."
"We are satisfied with the stability."
"Last year, I did a DM Series installation with my colleague, and this installation was effortless because we had Lenovo support on the phone, so it was easy to get help if we had any problems."
"The product’s quality of service guarantees the performance of each workload."
"The solution offers very good reliable systems and storage for our clients."
"The most valuable feature of Lenovo ThinkSystem DM Series is its capability to tier to the cloud, such as Microsoft Azure or Amazon AWS. Additionally, the integration is good and they are user-friendly."
"The FlexClone feature is the solution's most valuable aspect."
"The most valuable feature of the Lenovo ThinkSystem DM Series is its ability to store data well."
"Scalable and stable storage array."
"The GUI is simplistic and basic. I feel like it's explanatory, but not enough, it needs a little more to it."
"One thing I'd like to see in a future release is integration between their main storage array and what they call their FlashBlade product; to be able to snapshot directly from the primary array into multiple different backup copies on FlashBlade."
"I want to learn more about command line usage which I have not explored much yet. However, there are many automated solutions for repetitive tasks. I would like to see additional features like performance monitoring, configuring of alerts, and the customization of alert thresholds in the next release."
"The initial setup was a little complex. We had some initial issues with the design and had to help correct some of the white papers for it, but it wasn't your standard use case."
"It's too early to tell if we've seen a reduction in total cost of ownership. The solution is expensive."
"We did have one hiccup with the integration of vCenter. When we were installing Pure Storage, we were using vCenter 6.7, which defaults to the HTML5 Web Client. The current plugin for Pure Storage doesn't show up in that client at all. You have to go and use the legacy FlexFlash client to see the Pure Storage plugin in vCenter."
"In the next release I would like to see integration into other third-party player providers like Google."
"Pure Storage FlashArray could improve the recent file storage capabilities because it is lacking a lot of features."
"Having more artificial intelligence tools built into the solution would be a great benefit. This would allow us to see more about the workloads and higher visibility, such as performance degradation."
"I haven't seen the roadmap for this solution."
"We've also encountered an issue when it comes to migrating to compressed LANs on the Unity, and during the Storage vMotion. It appears that the compression algorithm is overwhelmed, and when it becomes overwhelmed it just stops compressing and writes the raw data to the destination. We later copied internally another Storage vMotion to another compressed LAN and achieved much higher compressions on that internal copy. It would be really nice if there was a way to automatically throttle, as a part of a Storage vMotion, to say, "I want to gain the maximum benefits from the compression algorithm, so throttle back the Storage vMotion to implement 100 percent compression.""
"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."
"We've got massive issues at the moment with IBM AIX. It's not stable. We have a lot of disk errors, production crashes sometimes."
"In the dashboard there could be notification of duplicate files and the like, so we don't have to rely on Windows to do that."
"This is a tier-three solution and it gives us what we need for archiving and backups."
"One area of improvement is replication. We are also using Oracle virtual machines, and when you are using systems from other vendors, the process of replicating from Unity through OLVM is more laborious than when we were using VPLEX."
"I would rate the support of Lenovo ThinkSystem DM Series a four out of five."
"This is an expensive solution."
"The solution needs a simpler licensing theme around the DM series. The problem is if you only need one of the features, you still have to buy the whole thing. The licensing needs to be more granular or flexible so you have the option to only license FlexCone or Inline Compression features."
"Lenovo ThinkSystem DM Series could improve by having a snapshot feature. Additionally, there can be other features added to help restore the data faster."
"Many people do not realize that Lenovo has a storage solution, so better marketing from the vendor is needed."
"The solution should change the licensing model and allow customers to choose features based on their requirements."
"The licensing model needs to be revisited. It needs to be simplified."
"I would like Lenovo to add a feature like IBM Easy Tier to DM Series. This is a crucial feature for the customers."
Dell Unity XT is ranked 4th in All-Flash Storage with 189 reviews while Lenovo ThinkSystem DM Series is ranked 21st in All-Flash Storage with 10 reviews. Dell Unity XT is rated 8.4, while Lenovo ThinkSystem DM Series is rated 7.4. 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 Lenovo ThinkSystem DM Series writes "Simple deployment, stores data well, but missing features". Dell Unity XT is most compared with Dell PowerStore, NetApp AFF, HPE Nimble Storage, IBM FlashSystem and Lenovo ThinkSystem DE Series, whereas Lenovo ThinkSystem DM Series is most compared with NetApp AFF, Lenovo ThinkSystem DE Series, Dell PowerStore, IBM FlashSystem and Nutanix Cloud Infrastructure (NCI). See our Dell Unity XT vs. Lenovo ThinkSystem DM Series report.
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.