Dell EMC Unity XT reviews

My clients use it from a virtual environment. So, there is a NAS application as well.

It is an on-prem virtualization solution.

In my experience, the application configuration is a standout feature. It allows users and even admin nodes to be configured more smoothly. The process, especially after zoning, has become more streamlined with enhancements in bin management, cleaning, and initiatives.

The ability to have flash to adapt to your environment. It's one of the best solutions you can actually use for the database.

Dell Unity XT's integration capabilities are good, like VMware features and other features that are already added. It's quite good.

It is easy to use. The interface is quite user-friendly, and the integration is not too difficult.

The only challenge I've ever had was with a Drive firmware upgrade.

However, when I did an on-prem performance [assessment], it didn't pose much of a problem.

I have been using it for six years.

I would rate the stability a nine out of ten.

I would rate the scalability a ten out of ten.

I've done upgrades a couple of times. It wasn't too hard to upgrade. A few times, it involved adding capacity depending on how the size of the collections began. And boom, we're good to go.

Within the last three months, I did an upgrade on Unity. It was quite simple. We downloaded the firmware, and then there was a bit of setup. And just a few steps, and we were ready to go.

Our clients are usually enterprise businesses. 

The only time I've ever had a challenge was when the problem had gone beyond the initial support. And when we moved on to the next person who took over, it was really about them fully understanding what we had been troubleshooting.  

Positive

The initial setup is very easy. I would rate my experience with the initial setup a nine out of ten, with one being difficult and ten being easy.

It's quite easy. Once you have the application that needs to set up the connection in utility, we are good to go.

I have not had any cloud training in Unity. But the first time I had to deploy one by myself,  it was one of the easiest things I could ever do.

The deployment takes a few minutes. Because if you have your IPs prepared and your router is done, the deployment usually just takes a few minutes.  

I would definitely recommend using it because of its integration part and scalability. 

I would rate it a nine out of ten. 

We are using it mostly for VMware and Wintel. It is also for applications, like SQL, which need to be used on multiple different operating system, such as Windows, Linux, and sometimes Citrix. We use it with virtualized infrastructure.

We use QoS and snapshots features, which I like.

Unity provides a complete storage solution for VMware on a Wintel Windows box for various applications, such as SQL or Patron Databases. It is seamless, and it sits there providing all the storage and connectivity, so we can forget about it. Unity takes care of itself, solving all the basic needs of a robust infrastructure.

It is easy to deploy. That is the best feature that I like, because I used to fly into locations to install a Unity. We used to have an expense of $5,000 on the product. Now, I just send whomever is onsite over there locally with the initialization information in a text file. Then, they can put it in a USB drive, come back, and it's deployed. Afterwards, I can remotely access it, saving us $5,000 every time. It is not very expensive, so the value added is you get big bang for your buck.

If I can connect to my Unity through my iPad or my cellphone to check everything is okay and view the information via a dashboard. 

I would like to have secure mobile connectivity going forward. This would help me be more proactive.

It is pretty stable. I like the stability, because everything works like it should. We made it all redundant. So, we don't have anything to worry about.

We are so virtual that we have two of us managing the whole infrastructure. Everything is taken care of and highly available. Nothing is vulnerable at all. Everything is good. There have been no issues at all, so far.

We have 30 to 40 Unities out there in the field. We don't even scratch the full capabilities of the Unity. We are at about 20 to 30 percent utilization. It is just provisioned so well that we are sitting at 90 percent performance level. We have it well-provisioned so we don't need to worry about performance for the next five years.

It is quite scalable. If you want to add on, you can add on easily. We have a 25-slot enclosure and are probably at 15 right now. If we purchase a big company, need to scale up, we can easily scale up. 

If there's any issues with a hard drive or any other hardware components, Dell EMC is contacted, then they will call us back to schedule to get into the data center to replace something. This is all virtual. Support is not a problem, because it's automatically taken care of. Only thing we have to do is to give them access to the data center to go do what they need to do to fix it proactively.

The local account team and system engineer are the best part of working with Dell EMC.

Everything is becoming virtual. Then, cloud transformation is being considered right now. Everybody is going over there. We want to evaluate everything, and if the cloud solution is good for us, we'll go there. Everything will be in the cloud.

We use it for block storage for our entire VMware environment, which runs Windows, Exchange, and SQL Server. The Unity also provides block storage for bare metal Windows Server that run our backup software. We also use file storage primarily to store images.

I use it with three projects that I directly work with. Each of those projects has 80 to 100 virtual servers. We have sysadmins who are dedicated to each project and do all the admin tasks, like checking VMs, servers, storage, etc. There is a larger team of five or six systems engineers who backstop all three of those projects. We focus on architecting and configuring any servers, storage, and networking. We may also be called in to resolve performance concerns.

Unity/Unity XT is significantly more user friendly than VNX.

We can do both block and file storage on one unit. For our projects, we use both of those functions. This is a key feature for us, along with very solid, predictable performance.

We use VMware in a number of projects but there isn't very good visualization of the storage from VMware or vice versa. I'm hopeful this improves in the follow on product, PowerStore.

I have been using this solution for the past seven years, previously at Dell and three years with my current company.

Stability has been very good, even the older models of Unity are quite good. The non-XTs and the XTs have been absolutely stable. We have had a couple of small hardware glitches, e.g., I have had to replace an LCC. That is literally it over the last three years.

This is a newer model for us. Out of the three projects that I have worked on, two of them are using the older model and the XT is primarily in another project. We have tons of scalability in it. We have a whole rack dedicated to Unity, and it is pretty much empty. We have probably close to a petabyte of storage in there, and it is still pretty much empty. Scalability looks really good.

Where we would run into a scalability problem, we are going to do a lot of image storage, and that doesn't compress well. So, flash drives wouldn't really help us. We need a big, scalable object storage system. That is where Isilon comes in. We have about three and a half petabytes of Isilon at each of that project's sites.

The technical support has been really great. I have never had a problem that they were not able to get to the bottom of pretty quickly.

Positive

We do have Dell EMC SC storage, which is very simple and straightforward, which is good for our small remote locations. However, it doesn't have the performance or features that the XT would. As far as block storage, Unity XT is probably the best bank for the buck for us because we can get block and file storage in one package. We don't have to buy a separate Isilon for object storage.

Including VNX, SC, and Unity/Unity XT, Dell EMC has provided all the storage solutions at the company for the last 20 years. 

The initial setup was super easy for the most part. 

I will note one issue. This might be on the sales team, but we had a need for encryption that I am sure we mentioned. However, the Unity that showed up at our data center did not have the licenses for encryption at rest. I would love to see Data At Rest Encryption (D@RE) be just the default since I can't imagine anyone wouldn't want it at this point. It would have made life easier for me. I definitely had to completely wipe out an array three days after we set it up, because it didn't have encryption, then redo it with a new license.

Vendor did initial install. I reinitialized it and did the final install.

There are cost savings from having a single solution that does both file and block storage.

Pricing could always be better. Dell likes to charge a premium price for these products.

I would say the major complaint with pricing is that Dell EMC comes to us and gives us a an initially high price. We usually need to go back and forth to negotiate the price to a more reasonable level. We are not going to just say, 'Yes,' because we are out of time." 

I don't know if the discounting structure needs to be better or more consistent. 

Having worked at Dell EMC previously, I know they have discount floors, etc. I just wish they would note, "This company gets a 55% discount." Just be consistent with it. Company-wide, we buy all our storage from them. They should be able to give us something a little more structured.

In one project, we needed more scalability that the Unity can provide so we are using Dell EMC Isilon for it. In that case, I needed multiple PB of object storage.

Otherwise, we have not looked at much else. In the future, however, we will probably transition to Dell PowerStore.

I would rate it as nine out of 10. It is definitely one of the most robust, solid, well-performing products that I have dealt with. It is set it and forget it, which is wonderful for my piece of mind.

We use Unity solutions for our data center operations as a primary storage environment.

We were able to retire all our VNX systems and reduce the footprint in the data center. The Unity systems can scale up quickly, so we use less space in the data center if we employ more Unity systems than the old VNX systems.

Unity is scalable and you can configure it quickly. 

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. It takes a little more work when we are incorporating a third-party environment. 

I've been at my current job for almost five years, and we have been using Unity that whole time.

I believe Unity is stable. However, we haven't used it for long, so I can't really know how stable it is until we have enough time to work with it.

Scalability is one of Unity's biggest advantages. It looks like we're going to need to do a lot of expansion because any capacity we purchase gets consumed pretty fast. We'll have to increase our footprint on Unity.

I rate Dell EMC support 10 out of 10. They respond rapidly and do a good job. When I have an issue and need technical support, I reach out to them either through chat or by submitting a service request, and the response is good.

Positive

My company was using EMC Symmetrix. They moved from Symmetrix to Dell EMC VNX and then Unity. They have not done any other evaluations of other vendors aside from EMC.

Implementing Unity was straightforward. We were able to move through the process of setting up the systems based on the procedure the vendor provided without any problems. Once we got started, I think it was just a couple of days. 

The company purchased a support contract, so we worked with Dell EMC to deploy the system.

We just deployed these new Unity systems a couple of months ago, so we haven't had an opportunity to assess the cost savings yet. As we continue moving ahead, we'll be able to do that. The company is scaling up Unity, so if they are willing to scale up quickly, they like the product, and there is something advantageous to the systems. Whether in terms of money or performance, they seem to be getting some value from the systems.

I'll rate Dell EMC Unity nine out of 10. It's a great, scalable product that performs well. Out of many options, it would be my first choice.

We use it for post to all our data stores or virtual environment.

We have had no performance issues. 

As far as benefits, Dell EMC Unity XT gives us fast access orders for everybody in accounting, and it's working. It is all-flash and is in extreme hyper-performance mode. 

When there have been critical updates, we will get phone calls from Dell EMC saying, "We need to update this, and because our contract support level is here, we can do this for you." They will bug you to death until you have updated it, which is good because we are overwhelmed.

It's all-flash.

The solution is so easy to manage that I forget it is there.

Their support is now a lot better, so that is good. They are very helpful when we called in and say, "This is the project that we want to do. Which box should we go about buying? They will send us the information and go through it with us."

We have had issues with the capacity and some misunderstandings on how much compression that we should be able to see out-of-the-box. When we were originally sold the box, it was before the merger. The salesman promised us at least a 50 percent compression on the box, so we ordered it with 2TBs of storage. That was a mistake, because now we are locked into smaller drivess. When it comes down to it, we are running out of space. 

We realized that were barley getting a 12 percent compression offset, not the 50 percent, and this came about the time of the merger. All of this was happening and a lot of people in the company did not return emails at the time. I guess it's because they were no longer with the company or they knew they wouldn't be, that's just speculation. However, it took us several months and almost ruined the our reputation during that time period. They did make right on it and sent us several drives to double the storage on our devises for free, so they made it right towards the end, but it took a while.

The iSCSI and the VMware integation using vSphere could be less confusing. 

Three to five years.

The box has been on 24/7/365 with the exception of one day when we had to change out the batteries in our battery backup. We realized our network cord was not working in it. 

When I left to come the conference, I looked, and uptime on the battery said "527 days".

You only have so many days in the storage. When you buy storage, buy more than you think you'll need, because it will come back and bite you. Because now, if we expand anymore, we will have to buy a box to piggyback on this storage. Hindsight is 20/20, but all-flash is expensive.

Technical support is much better now. They are  responsive, and it is easy to get to the right person. They will blow up your inbox and voicemail if you have a critical update that needs to be applied to either the drives or the box itself, which is great.

Previously, all our servers were running one instance of Windows, and running as a particular application. Email servers were on a server unto themselves. We had a mess. We had so much hardware. 

Because of Dell EMC Unity, I was able to turn off the server that I had been managing for ten years for email. This makes the server room a little quieter now!

We bought the box of all the licensing that we needed and not run into anything where we would need any additional licenses from Dell EMC Unity.

VMware is a different story, but as far as Unity goes, it's not been an issue.

Currently, we buy directly from Dell EMC. We've tried going through resellers before, but we've found that if we go directly through Dell EMC, we get a good a price from being with the government. So, we are lucky there. We have that working relationship with the folks at Dell EMC, and sometimes I even get to run into the rep or specialist at events, which is great. I don't get that with a reseller.

We also looked at iXsystems. We just purchased one of their boxes for storage. I've known iXsystems for a number of years, and they gave us a great price on an absolutely insane amount of storage because all we needed was a box set in a bunker for local backups. The Unity was just outrageously expensive for our needs, so we went with iXsystems. I've managed an iX box in the past. Those guys will bend over backwards to help you as well. So, that's why I chose to go with them.

Spec it out with bigger drives than you think you will need, because when you do expand, you're going to wish you had done that. If you buy bigger drives than what you currently have in a RAID, now you have to have a separate data storage. You can't have one continuous data store. For some people, that might be okay, but we really didn't want that but we were forced into having that.

We do integrate with vSphere. We tried Hyper-V and immediately regretted that decision and went back to vSphere. Right now, that is the only utilization and there are costs involved with the VMware integraton.

Most important criteria when selecting a vendor:

• Reliability
• The willingness to make it right when something goes wrong.

We use Dell EMC Unity XT as our primary storage, mostly for VMware, the tier-one storage of our VMs. We use it for SaaS and corporate. We do replications with it. I hate to call Unity your standard, basic storage, but it's your standard, basic, old-school, tried and true, reliable, classic storage. Nothing fancy, but it gets the job done, has all the features you need, and is easy to use.

Performance-wise, we actually use ScaleIO for the high-performance stuff. But Unity, as your classic storage, does a fairly good job.

We actually use it just about everywhere because, in the majority of the use cases in our company, there is a need for a lot of storage but they don't have a lot of IOPS. Unity fits that use case well. For the areas that need high performance, the high IOPS, it doesn't fit. But that's okay. That's why you have multiple SAN solutions.

One of the benefits it brings is the value for its price. It has saved us a lot of money. It does the job. It just works. We just bought a bunch of new Unity's that allowed us to do a lot of consolidation. Those four Unity's replaced 13 VNXs and older Unity's. 

In terms of simplicity of ownership, I think we still have somewhere in the neighborhood 20 Unity's and they're managed by four storage guys. So, from a simplicity perspective, you can manage a lot of Unity's across a lot of data centers with a very small staff.

In addition to the price point, you factor in all the features, like replication, and that it works great.

Like most newer SANs, the interface is very simplistic. I'm still used to the old-school SAN where you need a PhD to be able to configure it. I'll pick on NetApp as an example. To work on a NetApp, needing a certification isn't a recommendation, it's a requirement. You don't want someone who hasn't had all the required training working on NetApp. On a Unity, you can throw it in a remote office and tell whoever is there, "Hey, go click on these buttons." And you really don't have to worry about them clicking on the wrong thing. 

Or if I even need them to rack and install the Unity, it's a handful of cables here and there, where it's called out and easy to follow. There is just no complexity to it. A lot of SANs are easy to use these days. Unity was - if I recall correctly, especially on the VNX line, before they changed the name to Unity - one of the first to really lead in having that simplistic interface; the "why make this hard?" mindset.

We have had some downtime. Nothing is perfect. Unity’s have had some code-release problems, versions that, from a compatibility perspective, had some glitches which caused an outage. But, given the amount of Unity’s we run, that has been fairly minor and it hasn't happened at scale or across all of our Unity’s. 

It's more like, "Hey, we have a new code. Let's deploy it," and we have a situation where we can deploy it in a given location first. So we deploy in that location. Oops, it has an issue. Roll back and get Dell EMC engaged and resolve it and move on.

It hasn't really been that big of a deal. As a great "for instance," with ExtremeIO - which we bought starting about two years ago, and deployed in one of our divisions as their primary storage because we needed performance there - it's had so many issues that upper management has essentially banned us from ever buying an ExtremeIO again, because of the downtime. Either because of compatibility or just straight up code problems, it's just not a stable SAN. And the one thing you want out of a SAN is that it has to be stable.

So as long as Unity remains good and stable, that will be a primary reason that we use it.

It scales decently to 100,000 IOPS, maybe 150,000. But as long as your IOPS requirements are below that, it does a great job.

With the nature of the architecture, there's a limitation to its total, possible throughput. So if you need IOPS above that 150,000 mark, your Unity engineer will say something like, "Oh, we just need to cluster it and do that." That's a very old-school approach. If you need more IOPS than what Unity SAN can provide, clustering is not a great option. The better option is to go with a SAN with better IOPS. Unity is good at what Unity does, so don't try to make it do what it doesn't do. It's great for bulk storage, up to a certain performance level. If you use it for that, it works great.

On a per-SAN basis we could have 3,000 to 6,000 VMs connecting to it.

Technical support is responsive, of course. If it's obviously a Unity issue, it's usually a pretty simple and straightforward fix.

It's when they say, "Well, no, the Unity's fine. It must be an issue with the host. Or it must be an issue with the VM," where you get a little bit of that finger-pointing going on. Then it becomes that struggle of stopping the finger-pointing. It's all one company so let's all get on the same phone call and figure out where the problem is.

That is usually something we have to start, whereas from a Dell EMC/VMWare/whatever-else-is-involved perspective, they're not the ones to start that bridge or that conversation.

Especially if it's a production outage, I don't care about finger-pointing. I don't want to hear about it. No one does within the organization. They want it fixed. If you don't think it's a SAN problem but it's clearly an issue with the SAN, let's get everyone involved who needs to be involved and fix the problem.

So it would be great, in terms of future support calls that fall under that finger-pointing category, to have them say, "Okay, we need to now engage so and so. Let's get them on the call."

We had a lot of VNXs that we retired and we moved over to Unity. But that's just a natural progression of the product line. We also replaced a lot of old VMAXs with Unity. It might not be the sexiest box but its performance has grown through the generations to the point where it can do the job we used to have to buy VMAXs for.

We replaced the VNXs due to multiple factors. End-of-life was a big aspect; end of service contracts. It's cheaper to install a Unity than to renew the maintenance on an old SAN. That's where it's at. 

We were able to reduce our monthly spend significantly enough by doing that consolidation that we were actually able to buy the ScaleIO's we needed for another division.

When I look for a vendor to work with, I care more about the product than the vendor. Personally, I am most happy with a mixed environment. A mixed environment tends to be typically configured to best practices more frequently, with fewer proprietary aspects. Those proprietary aspects are typically what box you in or prevent you from doing something as technology changes. By running a mixed environment, you have more flexibility and ability. With that being said, I run all things VMWare. So it's a relative thing.

From a SAN perspective, storage-wise, I look at storage as a commodity. That's really what it is. Give me a server. I don't care what it is. Give me a SAN. I don't care what it is. Make it cheap, let it hit the performance marks I need, and make it reliable. If it's those three things, what it is doesn't matter to me. Whether it's a Unity or something else, I don't care. I'm not buying the brand, I'm not buying the vendor. I'm buying a commodity.

Like I said, Unity wins on ROI. As long as it wins on ROI, as long as it wins on uptime, as long as it does the job it's doing, it will continue to be the one that gets installed. When it fails to meet those, we'll switch.

We used to have a lot of NetApp. We've always bought BMC. But we have had no problem changing vendors. We buy a lot of Cisco. We don't care what the server is. The Dell EMC servers are cheaper, so that's what we go with. It's all about satisfying the base requirements and getting the job done.

I've installed Unity’s, but it's been a few years. The setup is a piece of cake. It's super easy: click, click, click, done.

Regarding upgrades, the guys who take care of that do so on a very regular basis with no real issues. They do it through maintenance windows. But at the end of the day, they really haven't had too many problems; a few of those minor problems I've mentioned, but overall, it works well.

From an ROI perspective, I'll put it this way: When we've tried to buy other SANs, the Unity ROI makes it impossible to buy them. So usually, the only time we buy another SAN is when the ROI isn't a factor, when Unity can't do the job. From an ROI perspective, it's great because it beats out everything else.

We've tried to look at other options but, at the end of the day, when you price it out, the Unity wins.

Its biggest valuable feature is its price point for the amount of storage and performance you get. It's a sweet spot. It's cheaper than the other SANs out there, but performs well enough. It fits that nice, middle-ground portfolio.

If your small office or data center needs a couple petabytes, or just lots and lots of storage, it works great. Or if you need just a couple of hundred terabytes worth of storage, it works great. The price point hits that right spot.

As for advice to someone who is interested in this type of solution, I would simply say, "Talk to so and so, because that's what they do, and have fun." We use it across the board. So if someone needs a Unity for their project and they want their own SAN for some reason, they just have to go through the approval process. There's no fight to buying a Unity, because again, from an ROI perspective, no one argues.

In terms of the buying process, I'll start with getting a quote. I find it's pretty easy, mainly because I worked as a consultant, so I actually would build those BOMs (bills of materials); the pre-quote build. For me, it's super easy - because I've done that career-wise - to build a BOM for a SAN, Unity, or otherwise. Typically you have your BOM. And from the BOM you get your quote. From the quote you get your invoice. The BOM is the first step. You get your approvals, that this is the configuration I want.

So it is easy for me but not necessarily for your "Joe Average" person, for the rest of the storage guys. Their typical response is, "Okay, I need a new Unity with these IOPs and this capacity. Go." And they just have our partner, through whom we buy this stuff, build the BOM. The partner sends it to us and says, "Hey, this is what we're doing for you." We say, "Okay, it looks great." And it moves forward. The struggle is after you get past that point, on our side, where it goes through our approval, what we call the CAR process. That's where it takes some time. That's not necessarily a Dell EMC issue or even an issue with our partner. That's an internal logistics and political issue.

I would rate this solution at eight out of 10 because, at the end of the day, it is an old-school SAN. It really doesn't take advantage of any of the modern-day advances in SAN technology.

We primarily use the solution for storage. 

The interface is very good. It's user-friendly and easy to navigate.

It is easy to set up the product initially.

The product has helpful local technical support.

It is very scalable.

It is stable and reliable. 

Its replication technology could be better. There is no option to postpone the replication after a failure. 

I've been using the solution for about three years. 

It is a stable product, and it is quite reliable. I haven't come across any bugs or glitches. It does not crash or freeze. I'd rate the stability nine out of ten. The downtime is literally zero.

We have found the solution to be scalable. I'd rate the solution nine out of ten in terms of the ability to extend. 

We have about four people directly working with the solution. They are system administrators. 

I've dealt with technical support in the past. They are helpful. We've worked with a local engineer, and he has been helpful and responsive. 

The initial setup only took one day. The initial setup itself was straightforward. 

We handled the deployment ourselves with the help of Dell. We did a standard deployment. 

I'm not sure of the exact cost of the solution. 

I'd recommend the solution to others. I would rate the solution nine out of ten. We've had a good experience with eh solution. The only issue for us has been the replication technology.

This solution is used for primary storage. We have a single installment with many units throughout our on-premises environment. We only have one XT unit and it is used for one of our core environments. It provides critical services such as DHCP and DNS.

This solution helped us reduce our physical footprint and power consumption. 

The inline deduplication and data reduction capabilities have been the most valuable.

I have been using this solution for five years. 

This is a stable solution.

Scalability of this solution could be improved. 

I would rate support for this solution a six out of ten. A few years ago, I would have rated it an eight or nine out of ten. The biggest challenge is responsiveness and getting to speak to someone who really understands our challenges. 

Neutral

We previously used VNX. We switched solutions to have an updated platform and integrated NAS services.

The initial setup was very straightforward. It is a plug-and-play deployment. It took half an hour to deploy and required two people. It requires routine updates for maintenance. 

We have experienced a return on investment using this solution. 

This solution offers great pricing. 

We evaluated NetApp before choosing Dell. We are more familiar with Dell's products which is why we decided to use this solution. 

I would rate this solution an eight out of ten.