We performed a comparison between Dell Unity XT and VNX [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.
"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."
"It has made working with storage as easy and simple as it should be."
"It's actually very stable"
"Lone segmentation is simpler and more agile. It's improved the velocity in overall provisioning from project to operation."
"It is easy to deploy and it's all-flash, so it's very fast."
"Their REST API is wonderful, well-documented, and easy to use."
"The speed of the Pure FlashArray is very, very fast and nothing in the market can compare to it."
"The amount of throughput that we're getting is really nice."
"The Snapshot feature is key."
"I like the idea that it can compress and dedupe inline. That is quite a stunning feature for mid-range customers."
"The flash aspects of the Unity make it incredibly fast. The fact that you get that much storage directly on what is basically a 3U box to us, that density has been really useful."
"I don't think I've ever seen latencies above 10 milliseconds unless it was something that wasn't the array that was messing up. The thing is rock-solid."
"Purchasing; We worked with a sales rep to purchase our Unity."
"Their support cases are all handed through the portal. The support contacts me when they need to do upgrades. It has been great. It's all very well-handled, scheduled, and performed."
"Integration; We use the product with VMware, and also use it with Syft for home directory and departmental shares."
"VMware integration makes the life of our engineers easier, as we are almost 100% virtualized and this feature is used on a daily basis."
"Multi-tiering, positively affects the efficiency of the storage space."
"The most valuable feature is the tight VMware integration, due to the migration from bare metal to virtualized environments and then on to the cloud."
"The most valuable feature is the auto-tiering, which helps in the speed of data access."
"It is very stable even during multiple power failures."
"From my point of view, the configuration that I can sell is restricted to the EMC best practices. It is hard to make a mistake in a solution. It means the configuration has good performance and scalability options."
"Good performance for VM environments"
"The implementation of both block and file system storage in a single GUI provides is better situated than most other storages."
"I really value deduplication and compression to save space."
"Currently, the solution fails to support file screening."
"We have not seen a reduction in our TCO nor have we seen ROI."
"The problem is that we can only make a few groups, around five or six groups. I like groups and we need a lot of them. We had to put all the information in only a few groups and cannot make a more detailed separation of them."
"I would like to have an easy way to determine the cost per VM so that I can present a solution to our customers."
"We would like to be able to connect to data tape for backup, specifically to the LTO backups."
"It goes at about 95 percent, so we have had some performance issues. It is hard to clear them."
"I would rate this solution an eight because we have had outages. The commit times went very high in the database. The whole array went down so our customers were down for around eight hours. This was a very big outage which could have been our fault because we didn't do the upgrade in time."
"When we were doing some tests, we found that there was an I/O freeze when they were switching the controller."
"Firmware Upgrades in EMC Unity require you to manually download OS and Drive firmware, this should be integrated (Nimble does this). When you order an EMC Unity, you have to specify the block size. This is weird for me and even weirder that you cannot change this afterwards, you should be able to specify per LUN/datastore (Nimble does this as well)."
"Thick provisioning of LUNs."
"I would like the device to have the ability to pull down its own firmware. That would be a great thing."
"This product lacks deduplication and compression at the current version 4.1.0. LACP is not available for iSCSI either."
"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."
"There is an ESRS problem that we're facing where, for some reason, the other Unity has not been able to register to EMC. The support information is not upgrading and nobody can tell me what is wrong with it. It's a minor issue, the ESRS is still working, but it is something that is very confusing and nobody seems to know what to do about it."
"The EMC VNX Virtual Data Mover (VDM) software needs more improvement."
"The support team is well-versed in the AMG solution, having received comprehensive training. They also boast strong partnerships in both VNAM and Korea. The system's user-friendliness is a primary consideration in their choice of solution, emphasizing the importance of service. They place a strong emphasis on service, occasionally requiring approvals. However, with full installations, they have achieved almost uniformity. Their storage approach differs from a consolidated business-based model; instead, it is application-centric. Their investment in solutions is geared towards specific needs, such as the banking or information system, acquiring smaller storage units individually."
"There is an easy replication process between distinct data centers via VPLEX and/or RPA. But I hope in the future that EMC/Dell could replicate this with other types of storage."
"EMC VNX needs to support bigger SSD and the Next Generation EMC Unity does this."
"EMC VNX needs to support bigger SSDs. Next generation EMC Unity will do this."
"VNX can improve by offering flexible upgrade options. It's not possible to add a single HDD to a current array and there are fixed rules to make upgrades."
"It would be very helpful to get an automated report that shows you the size of the checkpoints and get warnings when a checkpoint is reaching either maximum capacity per a file system or hitting the ceiling on the SavVol pool consumption."
"The administrative console (Navisphere/Unisphere) needs some improvement, especially on their Java-based GUI. The updated version of Java is not compatible."
"Poor connection to FC."
"There is no easy way to defrag a RAID group. It would be nice to be able to reduce the size of a storage pool if the storage is not needed anymore."
Earn 20 points
Dell Unity XT is ranked 4th in All-Flash Storage with 186 reviews while VNX [EOL] doesn't meet the minimum requirements to be ranked in All-Flash Storage. Dell Unity XT is rated 8.4, while VNX [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 VNX [EOL] writes "The auto-tiering helps in the speed of data access". Dell Unity XT is most compared with Dell PowerStore, NetApp AFF, HPE Nimble Storage, IBM FlashSystem and HPE 3PAR StoreServ, whereas VNX [EOL] is most compared with .
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Unity series is re-engineered VNX, so the Unity is newer … it makes better use of flash, active – active , dual controller mode; better price point , configurations solid upgrade from the VNX
Go for Unity. It’s the newest model and the base software is now better than VNX.
Unity is newer. Go with newer of the 2 if these are your only options.
Both systems are good middle storage systems but the unity family is latest.
The unity 400 is an hybrid flash where you can install classic HDD and
SSD. So you can reduce costs and optimize your storage for your
requirement.
Some function (that will be available in 4Q17) are interest like :
* support for inline compression,
* deduplication
* zero detect.
Deduplication is an expensive cycle system and I suggest to use it with
SSD. These function deduplication and zerodetect produce an hard
reduction of user space and if you need to reduce it without lost
performances I suggest an all-flash system and not an hybrid. Zerodetect
can give benefits, for istance in VmWare enviroment, for istance when
you inizialize a volume; or when you copy data from an old storage
systems to this one.
This systems can grow up 16 PB
VNX family is an old architecture, but has good point for use it. Has a
low cost, you can install some SSD. This system scale up to 0,5 PB
Which is better storage system for you ? It depend where you use this
storage system.
In other words if this storage system is the core of your IT
architecture and you are thinking :
* that you need of high performances,
* that it will grow in a couple of mounth, but you do not know when,
* that on this system there is the virtual server workload
So use Unity!
If this storage system is one of more storage systems in your storage
enviroment where you need to a lot of performances but it will not grow.
Use VNX!
With Dell EMC, you can continue to work with the midrange and ensure high performance. Dell EMC Unity 400F environment SAN and high performance for NAS. Dell EMC Unity 400F Performs Replication operations on Snapshot (Snapshot), Local Area Network and Remote Network. In addition, systems such as VMware, Microsoft and OpenStack can work.
First of all, DELL EMC will announce the end of life of VNX in JAN so take in consideration this point.
Secondly, UNITY is better than VNX in terms of performance, scalability and price. However my advice to you is to be “modern” and go for Unity 350F ALL FLASH, from now on consider the all flash in everything in case of using virtual san or SAN storage. Unity 350F is the same cache 96GB as unity 400 hybrid and scalability is more and more better than 400 because nowadays the single SSD capacity up to 15 TB so it will scale more. In addition to, All Flash models contains unified, deduplication, compression and dynamic pools and this is the best option in All flash because goodbye for the traditional way of building a pool with a hot spare and a parity, now you can put the exact capacity you want by adding one disk or 2 or whatever you want not like the old days build the same pool as the previous one installed in the storage box.
To sum up, please reconsider your choise and put the ALL Flash unity as option 1.
EMC VNX 2500 or EMC Unity 400. Which one is the newer and better Storage and why?
Which Storage is the latest and which one functions better and Why?
Unity is the newer box and I think it will replace the Vnx family eventually.
Unity support SAN, NAS and ISCSI also Flash and Standard disks .
The only drawback I know of is that Unity uses TLC for the flash disks
As a new purchase, the Unity will have a longer support life as the VNX line will gradually be phased out.
The management software in the Unity is newer and easier to configure and manage, which is often important in a smaller organisation that does not have SAN skills. If you decide to take an EMC Unity array there is a new HMTL5 GUI versus the VNX 5200 which uses now out of date Java versions.
Both the Unity 400 and VNX5200 arrays are widely installed, reliable and both make excellent storage platforms for production applications and virtualised environments.