Dell EMC Unity XT reviews

Primary use case is block storage for healthcare IT. 

It has performed very well.

It has allowed us to be more scalable on the solution that we are buying, not having to overbuy a solution that we can't scale out.

The compression and deduplication which will be coming in version 4.3. With just those features, we will be reducing the amount of data and footprint on our hardware.

Among the biggest features that I wanted was deduplication, looking at the zeros coming in, in-line, and those will be available in version 4.3. There is nothing else I can think of at the moment.

Stability has been pretty rock solid for us. We actually did have one outage that was due to a bug in the code which caused the kernel to just run off on itself. It was a known bug. We probably should have been up on the newer code. We were a level behind. Although that bug was known, it caught us off guard.

Since then, we have had no issues with the stability. We have had 100 percent uptime.

Scalability is great, anywhere from upgrading the SPs to adding disks.

I would evaluate the technical support as doing pretty well. I have never really had an issue with Unity's support.

We were using a VNX solution, and the reinvestment was partially due to its age as well as support contract renewals.

When selecting a vendor, it often comes down to price, but we have been pretty much a Dell EMC customer for years. We look for their products, and it is traditionally pretty easy to move from product to product.

Very straightforward; simple. No Professional Services were needed on our install.

I give it a 10 out of 10. I like it for what our application does.

I would recommend it.

Storage for high I/O databases.

Most of our systems had their respective performance bound to how fast the DBs were responding. After migration to Unity 300F, we were able to put more DBs on flash, reducing latency. The results were visible in the front-end systems, and all users noticed the improvement. The change impacted not only end-user satisfaction but also productivity, as users were able to perform more in the same amount of time.

• Performance
• Low Latency
• Integration with VMware

These features are important for us for two reasons. The first two features - performance and low latency - are customer-facing and have direct impact on the user experience. This way, our work is more visible and we are able to improve not only user perception but business processes overall as well. VMware integration makes the life of our engineers easier, as we are almost 100% virtualized and this feature is used on a daily basis.

I have three suggestions: 

Improve the administrative user interface so it is easier to work with. Currently, a simple task, such as removing a host from 100 LUNS, takes a lot of time. If they could improve LUN to host model to be more like the EMC VPLEX, for example, it would be great.

Additionally we had one incident with a memory leak that led to controller reboot. Although it had no impact, when such things happens the storage should be more aware of it, send alerts, and propose corrective actions. 

Last (and I understand that it has a low chance of being implemented) the copy services currently are redirect on write. It would be great if the administrator could choose between redirect on write and copy on write, when configuring copy job.

No issues with stability.

No issues with scalability.

Good.

We were using EMC VNX, and it was a natural upgrade from tiered to all-flash storage.

The initial setup was very straightforward. Migration was smooth and configuration of the storage was quick and simple. The time needed to put it into production was less than expected, and data migration itself went without a glitch.

We always do a business case, so I recommend that to others too. If the business case sums well, go forward.

We evaluated options from other vendors and, although there were some other very good propositions, we chose DELL/EMC as we have the knowledge and we trust the partner.

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.

• Enterprise production services
• Wide variety of applications
• Block only

It did not. Simpler interfaces mean less capabilities for managing. Inexplicable rules of configuration contribute to inefficient disk allocation. The Unity units are an okay upgrade from VNXe, but are a poor substitute for a VNX2 model. It limits the management, distribution, monitoring, and implementation of our storage LUNs.

None. Having used EMC products for more than 15 years, this is the first product in that time that I could find nothing to like.

• Improve the interface and provide more management capability.
• Remove the configuration limits.
• Start over.

Dell is far worse at support than EMC was. It headed downhill fast.

EMC for more than 15 years. Prior solutions were VNX and VNX2.

in-house.

Setup is simple, but at the expense of key management features.

Pricing is as high as it has ever been for EMC.

Compared IBM Storwize and some Dell storage options.

Software updates have to be downloaded to the root of the device. This pushes the available space to 95% utilization. Poor design.

It takes a lot less time to manage. Setting up new storage for virtualization is really easy, so it saves a lot of time creating file shares. So, it does save us time, and cost when compared to any other storage solutions.

Ease of use is probably number one, compared to the previous storage that we've had. Easy scalability, easy set up. Compared to everything else, the Unity is, well, you could call it child's play. As long as you know what you're doing storage-wise, Unity is really easy to use.

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.

At the moment actually, it does everything it needs to do; I don't have any improvement requests.

No stability issues. Absolutely none.

For our needs, it's more than capable. We run about 100 virtual servers on it. We have about 100 users accessing the file shares from there, and I've seen no problem with that. We have about a 10GB backbone. Whatever we throw at it, it hasn't shown any sign of weakness or anything. It's been really good.

On a scale from one to 10, I'd probably give EMC customer support an 11. It's been really good. We do have premium support, which means if we have a problem, it gets solved really quickly. 

At one time, we had an issue with multi-protocol storage which was solved in about two days. It wasn't even that critical. It was something that was in testing, and for testing purposes I got it solved in two days. So, customer support has been just marvelous, splendid.

We used VNX previously. This was an upgrade from VNX. We've also used EqualLogic which, of course, is part of the same company today. But EqualLogic was just for simple file storage and more of a scratch storage because it was really cheap and we needed more storage quickly at one time. The EqualLogic was the easiest to get access to at that time.

Compared to VNX, the Unity is a lot easier to use. I could have kept on going with the VNX, but since the Unity was more or less the replacement for this size of storage, the Unity was the logical next step.

Dead simple. Comparing both EqualLogic and VNX, which basically are fairly simple themselves also, the Unity - as long as you know something about storage and what kind of storage or what kind of hardware you have below - it was just "Next, next, next," because it just uses the drives that you have. It sets them up automatically, creates everything more or less without almost knowing anything. It was very easy.

Perhaps I could have gotten some instruction online. The thing was that when I set it up, it had just entered the market. It was just about one week old when we got it. So, I don't think I would have found that much online, but then again, having worked with storage for the last 15 years, in essence I took a 15-year-long course before I got the Unity. But it was so simple, I didn't need any help setting it up.

More or less, I am the team. I do have three other guys, but yes, I was the one who decided to get this. The pricing was quite okay compared to others. We probably got it cheaper because we were the first ones out of the gate, but I would say that it's good value for the money.

I wouldn't say that I actually did look at anything else because I'm familiar with EMC and have been really satisfied with them.

It's really simple to use, set up, manage. Just be sure to know something about storage before you start, but that goes for any kind of storage solution that you use.

I actually want to give it a 10 out of 10 because it's been really easy to manage. It just does what it's supposed to do and it doesn't bother me. 

Storage.

I didn't choose this solution. My boss picked the solution. I actually suggested something else from a different vendor. Personally, my opinion of it is there aren't a lot of great features with it.

There are plenty of areas for improvement. 

They can improve on the speed. 

They can improve on the dedupe features, because right now, if you're using certain functionalities, certain criteria, it doesn't dedupe. It's very limited in one sense, while other vendors dedupe on primary, on critical tier-1 data.

You get support, but sometimes you have to sit there and try to fight through tier-1 just to get to tier-2, to get the correct support, to get particular items corrected. Sometimes it's a battle just to fight through support to get the right people. Most of the time, their first-level support is not very technical, so they tend to give you a page number out of their administration guide, which they call their instruction booklet, and they have you read it. I already have the admin guide. I don't need to read it. I need someone to help me because my system is down. I have a production environment that's very critical.

16 months.

It is stable. I give it that. I have had no issues such as where it just decides to take a vacation or drop dead. I've never had that happen. It's pretty stable. 

It is limited to a certain amount of terabytes. We haven't reached that threshold yet. 

As I said above, when you call, their support is a little light on the "tech. Sometimes you get the correct people. Sometimes you don't. I'd give tech support a four out of 10.

Basically, we used the same company's storage. They kind of revamped the same model and gave it a different name. They rebranded it because they supposedly restructured the whole code, redesigned the code. But basically, it's the same model, but rebranded.

I think they advertise that configuring this model takes less than an hour. But we had an integration firm that came in to do the install. It took some four to five hours just to rack it and configure it. I wouldn't say it was too complicated, and I wouldn't say it was extremely quick compared to what they advertise, that, "You can get the box running within an hour."

I personally had other options that I would have liked to explore, but my boss chose this, so I had no choice.

It's basically the same unit as a VNX, as the predecessor, so it was not that much of a change besides a redesign in code. 

My advice would be do your due diligence in research. Ask a lot of questions. If you can go to the vendor - they have these offices where they have lab environments - go there. Check it out. Test it. Look at it. Do everything before you make the purchase, because once you buy it you're stuck with it. There's no money-back guarantee. Once you buy it, you're stuck with it for the next three to five years. You're spending a quarter million dollars all the way to maybe $5 -$6 million. It's not like you go into a retail store, "The shirt doesn't fit. Can I get my money back, or something else?" You can't do that.

They're slow to implement new innovation with their product. They look at other vendors, I'm guessing, use other vendors as a "guinea pig." If another vendor came out with something new and innovative in their product, they would probably sit there, wait three years to see how the market reacts to that special design, the functionality that they implemented. EMC doesn't really innovate. They just sit there and wait for other people to innovate, and then they just copy.

Their product is stable. That's why people just buy it. Their company is big, and that's why they buy it, because they know EMC has been around for ages. It's one of the very first SAN vendors, since the 1970s. It's that old. It's an ancient company, so people buy for stability.

• FAST Cache: The ability for hot blocks to almost instantaneously be served from Flash.
• FAST VP: Enables us to better utilise the Flash resources that we have.
• ESRS/CloudIQ: Having the array communicating back to Dell EMC enables me to get faster responses to issues which may arise, like a failed disk.

The Unity 400 Hybrid has enable us to better utilise our storage resources and make adjustments dynamically without having to shut down our hosts.

• Inline deduplication would be nice.
• Better management of the hosts in Unisphere.

15 months.

Yes, we had an issue in January with a Service Processor rebooting unexpectedly. Dell EMC resolved this quickly with a special build of the OE and a permanent fix was included in the next public release.

No, the Unity 400 hybrid is highly scalable. It adds extra storage or connectivity can be done while it is online.

10 out of 10. One of the most important criteria in our purchasing decisions is the technical support. DELL EMC set the benchmark for us by which all other vendors are compared.

They have always met their stated service levels and have never let us down. They always follow up to make sure everything is OK.

Yes, we had a CX4-480, which had reached the end of its service life.

The setup was extremely straightforward, As long as you follow the initial config guide, your first LUNs can be available in a couple of hours.

Dell EMC is very competitive on its storage pricing, and from our experience, is not only the superior solution, but the best priced.

Yes, we also looked at IBM and NetApp.

The Unity 400 is one of the easiest to manage and the most reliable storage systems that I have managed in my 22 years in IT. Performance-wise it has met or exceeded all our expectations. If you do run into a problem, the support is second to none.

The storage solution has all our data from all systems, including our new ERP; the whole organization depends on the storage to work. All data is in one location.

Real Unified Storage (Block, File, VVols) in a unique 2U hardware. 

LUN mask. The Host LUN ID is sequential by access in the hosts. When one LUN needs access by many hosts (for cluster purposes), in some cases the Host LUN ID remains different on each host. Storage groups or global IDs for LUNs could be a good solution for this.

No stablility issues.

No scalability issues.

Very good.

The initial setup was very simple.

The licensing process is very simple and it has many features. I can't talk about pricing because I'm in a technical position and I do not have access to costs.

Yes, we still have a VNX5400 (block), before it was at a production storage site, today it is at a disaster recovery site. The change from VNX to Unity was because of the build of the DR site, a new ERP implementation, and to update the storage technology.

Other storage solutions need additional hardware to support file storage and the integration sometimes fails; or they offer fewer features.

We were EMC partners for some time, now Dell EMC partners. Our choices are based in Dell EMC products because we understand that the EMC technology is better when it comes to storage solutions. Among the EMC storage options, the Unity is the best choice when we analyze price, scalability, performance and  features.

The Dell EMC Unity is a small but powerful storage solution. With the "unified" concept it is possible get many features for less.

Replication: Disaster Recovery (DR) plans, RPO and RTO. Replication and ease of storage setup for block LUN’s and VMware.

Same answer as most valuable features.

GUI updates. I had several hours helping support troubleshoot the difference in what the system was doing compared to what the GUI said.

Less than a year.

Sure did.

No.