We performed a comparison between Dell Unity XT and IBM FlashSystem 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."Pure FlashArray X NVMe will quickly overcome all the hurdles you face, including network and latency issues."
"The Pure1 component is most valuable at this point in time when comparing it with EMC. Pure1 is where you can have your diagnostics in the cloud, so you can look at things from your mobile phone."
"Overall stability is very good. It is a very stable solution."
"It has benefited my organization because it has reduced time to insights."
"The solution is very straightforward to set up."
"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."
"Pure has signature security technology, which cannot be deleted, even if you are an administrator."
"Technical support has been helpful and responsive."
"My storage team likes Unity's replication features. Three-site replication is a unique feature that EMC offers us."
"The most valuable feature is the ability to provision storage from the CLI, versus having to go in and use the GUI every time. I can just script it out and it will create what I need. That makes it super-easy to manage. Also, for us, it's a set-and-forget. Once we provisioned it out, we haven't had to mess with it."
"Key features are ease of use, ease of management, ease of deployment, and the GUI is very user-friendly."
"There has been no downtime. It has built-in redundancy upon redundancy."
"All-flash is a game changer. If you need performance, simple operations, and you plan to use it with VMware, it is a good choice."
"It does great deduplication. From a storage perspective, we save money being able to dedupe right on the disk"
"The solution is so easy to manage that I forget it is there."
"We use it to implement all our VDI solutions."
"It's very easy to manage."
"IBM FlashSystem has an easy to use GUI, similar to the IBM Storewize family, which make it one of the best flash storage systems in the market."
"Data deduplication is one of the most valuable features of this solution."
"Flash disk with Easy Tier option"
"The most crucial feature of IBM FlashSystem is compression."
"Stability-wise, this solution is fine."
"This solution is really user friendly. It also offers good performance and is highly reliable."
"The GUI is very easy and performance is also good."
"There is room for improvement in the pricing of the product."
"In the future, I would like to see integration with enterprise backup systems."
"I want to see Pure Storage not only be for fast storage, but I want to see it be for the entire data center."
"We would like to see VNC integration or be able to use Pure Storage with VNC."
"There is room for improvement in catering to midrange storage needs, especially for customers seeking Enterprise-class features."
"We've seen that when we create a POD in synchronous mode, it increases the latency."
"They could add more support for file storage and different types of storage."
"The tool's pricing is higher than competitors."
"I would like to see a more seamless virtual box integration with the physical box which can replicate, because the setup of the replication is very difficult right now."
"The solution can use improvement with the patch cluster like the Synchron and Active replication."
"It needs more functionality and the ability to move across more landscapes."
"We'd like to see a cheaper version of an all-flash array in that footprint."
"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."
"We are running VMware, and with the VNXe it was possible to restore. We're using Veeam for VMware backups and with the predecessor, it was possible to mount a backup or restore a backup from a storage snapshot. With the Unity 300, this is not possible."
"Currently, the protocol SNMP is not implemented. That's a problem, as we follow this protocol and I can't check the integrity of this equipment."
"We had some issues recently because of a bug in the system. We were presenting LANs to the Unity array but I think it caused a disruption to the host. EMC did acknowledge it and provided an alternative way to do it."
"They can include Amazon file system S3 protocol in the upcoming releases. It is a cloud file system. IBM FlashSystem doesn't have this feature in the box for high-end or mid-range. We have got requests for this from customers because we need to use S3 for EDI application storage. At the beginning of every year, IBM releases firmware. When I find any bugs in the firmware during the year, I am unable to find any information from IBM regarding the bug. I need to open a ticket, and the IBM engineering team makes a patch only for me. This patch is not public. By creating a customized patch for a client, they don't really solve the issue for everyone. If multiple users have the same bug, IBM should upload the patch on the official website so that we can download it. IBM FlashSystem has a monitoring tool in the box, but it is not advanced. I need a more advanced tool for more advanced equations and monitoring. All top three storage vendors, that is, EMC, IBM, and Pure Storage, don't have a powerful monitoring tool. To monitor our box to show the statistics for I/Os and latency, I need to pay for extra software. The built-in monitoring storage is not mature enough to handle all requests and generate all reports that I need. They can include the functionality to stretch a cluster natively without using any additional boxes. In addition, there are some features that EMC has integrated with the box. These features are not available in IBM FlashSystem."
"The interface could improve in IBM FlashSystem."
"IBM FlashSystems is lagging in optimizing storage technologies."
"I have looked at a few pages of a report I download and I saw a graph there regarding software-defined vendors. IBM is not in a good position on this graph. I know that they are working very hard on this, to make it much better and to get to a level where it's not only hardware but also software to provide a complete solution."
"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."
"If you want to expand, you cannot expand the disc enclosure. You have to buy a total individual node. Sometimes, this is difficult because we are just looking for capacity and not a node."
"I would like to see bigger modules."
"The deduplication and compression ratio is not very good. It's not reaching a very high ratio."
Dell Unity XT is ranked 4th in All-Flash Storage with 189 reviews while IBM FlashSystem is ranked 6th in All-Flash Storage with 106 reviews. Dell Unity XT is rated 8.4, while IBM FlashSystem is rated 8.2. 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 IBM FlashSystem writes "An easy GUI and simple provisioning but our model does not support compression". Dell Unity XT is most compared with Dell PowerStore, NetApp AFF, HPE Nimble Storage, Pure Storage FlashArray and HPE 3PAR StoreServ, whereas IBM FlashSystem is most compared with Dell PowerStore, Pure Storage FlashArray, NetApp AFF, Hitachi Virtual Storage Platform and Huawei OceanStor Dorado. See our Dell Unity XT vs. IBM FlashSystem report.
See our list of best All-Flash Storage vendors.
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As with any engineered solution, it depends on your needs.
However, the bottom line is that for their target markets Dell EMC Unity will generally have a better price at parity performance over IBM's FlashSystem.
Both are focused on All-Flash arrays and Dell EMC Unity is where I start with VMWare. If I have a dedicated IBM DB2 application, I would lean toward the IBM FlashSystem.
The problem in the VMWare environment is that IBM has done a poor job prioritizing this area and has several I/O bottlenecks and interface driver issues. I expect future resolution, but does that happen before current platforms evolve?
Depends what you're expecting. Full compatibility with VMware environment - DellEMC only, IBM FS has problems with iSCSI connections to vsphere 7.02 - it's not supported (FS5200 and vsphere 7.02 server with Intel cards - doesn't work fast (10Gbe - 300MB/s instead of 1,1-1,2 GB/s), no solution for now from IBM and VMware (08/2021). Integration - DellEMC and VMware are one company - everything goes smoothly. Space reclamation didn't work well on IBM systems when connected to vsphere (vsphere 6.5 and V7000 models). When using Microsoft virtualization - no difference - it's more complex to start system but when properly configured - it runs well (fast). But of both of them I would choose HPE systems,:-) (Nimble or Primera):-)