We use it for all our storage requirements.
Storage Engineer at a government with 10,001+ employees
Delivers low latency and fast I/O for our users' mission-critical apps, with a smaller footprint
Pros and Cons
- "The most valuable features are the data deduplication, the inline compression/compaction, and the encryption as well, the security aspect of it."
- "Overall, for us, it's the stability, it has a solid infrastructure. It's easy to use, easy to rack and configure and start utilizing really quickly. It's been very stable, it works great, and it does everything we would want it to do."
- "I could see the GUI being a little bit more refined, the presentation layer being a little stronger, a little less sluggish."
What is our primary use case?
How has it helped my organization?
We use it for mission-critical applications. A lot of our users don't want any downtime, they don't want any kind of failure or bottlenecks. They want low latency, they want fast I/O, they want fast throughput - and it delivers.
It has helped us reduce the overall cost of our storage. We were able to consolidate a lot of the storage that we had in the past into a much smaller footprint, using less rack space and power. It has been great for that.
We have saved space using ONTAP, in some cases it's 30 to 40 percent.
What is most valuable?
The most valuable features are the data deduplication, the inline compression/compaction, and the encryption as well, the security aspect of it.
Overall, for us, it's the stability, it has a solid infrastructure. It's easy to use, easy to rack and configure and start utilizing really quickly. It's been very stable, it works great, and it does everything we would want it to do.
What needs improvement?
I could see the GUI being a little bit more refined, the presentation layer being a little stronger, a little less sluggish.
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NetApp ONTAP
September 2025

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What do I think about the stability of the solution?
We're happy with the stability and performance. They are very powerful machines.
What do I think about the scalability of the solution?
The scalability is very good. It's much more than what we can imagine using.
How are customer service and support?
Tech support is very good. They're great at following up, as well, with emails or calling you. It has been very good so far, very quick responses. It's easy to escalate and whenever we have had to order replacement parts, it's been very quick. No complaints at all.
What about the implementation team?
We used a reseller for the deployment, OnX. Our experience with them was very good. They were very helpful. They really helped with the purchasing, refining our requirements to get them where we needed them to be. They have been very good.
Which other solutions did I evaluate?
We have considered other options but they either don't have the same kind of architecture that we're looking for or the performance isn't quite the same. We'd have to look at them a little more in some cases, part of our job is to see what the other vendors are up to. But, for now, we're quite happy with NetApp.
What other advice do I have?
Go see a NetApp presentation or get a referral to a reseller for consultation. That would probably be the best way, because they can speak to the whole line of products. We're only familiar with some of their product line but they would be able to do a good job of showing all the products that NetApp has to offer.
In terms of NVMe over Fabrics, that's something we're going to see a lot of in the future. It's going to change storage. From now on, it's not going to be the same. When it comes to speed, compared to other Fiber Channel gear, there's nothing that compares, it's pretty amazingly fast. When it comes to NVMe over Fabrics with existing Fibre Channel infrastructure, the sky is the limit. It's pretty robust, it is a pretty amazing product, and the performance, especially with things like AI applications, will be pretty amazing.
We, as an organization, do not use ONTAP at the moment for machine-learning, AI, real-time analytics or those kinds of groundbreaking applications for storage, but it has a lot of potential. I'd like to use it for those kinds of scenarios, I'd like to see that happen.
We're definitely going forward, we're going to be growing with NetApp and with their products. They've improved a lot over the last couple releases, and I hope to continue to see that. There are a lot more features, advances in things like deduping and thin-provisioning. They're always improving their product.
I would rate ONTAP a nine out of ten at least. It's a very solid product, great architecture, great service and support, and very responsive.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Storage Engineer at Bank of NY
We save a lot because of the deduplication and compression
Pros and Cons
- "It has the ability to bring up disaster recovery quickly."
- "The toughest thing that we have right now is a cabling issue. There are so many that you need to connect."
- "I would like to see more S3 integration with other vendors, objects, or instruments."
What is our primary use case?
We use it for cloud. We have a big VMware environment with CIFS, NFS, and other applications. Most of the data is on NetApp.
How has it helped my organization?
It has the ability to bring up disaster recovery quickly.
What is most valuable?
- High availability
- Deduplication
- Compression
- Encryption
What needs improvement?
The toughest thing that we have right now is a cabling issue. There are so many that you need to connect.
I would like to see more S3 integration with other vendors, objects, or instruments. We are a big Dell EMC shop and would like to have this integration.
What do I think about the stability of the solution?
It is very stable. Given you have so many nodes in a cluster, the volumes, connections, and lifts can be moved anywhere within the cluster.
What do I think about the scalability of the solution?
It is better than some of the other solutions that we have used. It is easy to expand nodes.
How are customer service and technical support?
We are a premiere customer. When we call, we get someone on right away.
Which solution did I use previously and why did I switch?
We have grown with NetApp. As they grow, we grow.
How was the initial setup?
The initial setup was straightforward, but there is some complexity.
What about the implementation team?
We used professional services from NetApp for the deployment. Our experience with them was good.
What was our ROI?
We save a lot because of the deduplication and compression.
Which other solutions did I evaluate?
We have a mixture of NetApp and Dell EMC.
What other advice do I have?
NetApp does NAS well and better than other vendors.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Buyer's Guide
NetApp ONTAP
September 2025

Learn what your peers think about NetApp ONTAP. Get advice and tips from experienced pros sharing their opinions. Updated: September 2025.
870,697 professionals have used our research since 2012.
Enterprise Solutions Specialist at Lenovo (United States)
We are able to spin up copies of data in other data centers on other storage appliances
Pros and Cons
- "Efficiencies such as Flash Cache and Flash Pool allow us to make better use of slower, cheaper storage and have some faster storage sitting up front taking a lot of the caching and the reading. The way that has been optimized for the NetApp platform is better than the competitors. It has reduced our cost of storage because we're buying cheaper storage for the bulk capacity, which is really effective."
- "The ability to spin up copies of data in other data centers, on other storage appliances, is the most valuable for us."
- "I would like to see more in the public cloud space around things like object storage. A bit more granularity around how that gets deployed would be nice, but other than that I think they've got it nailed."
What is our primary use case?
We use ONTAP for systems management, running and managing storage appliances.
ONTAP, for us, is underpinning all the software that sits on top of our hardware. We manufacture the infrastructure side of NetApp appliances. We use the capabilities of ONTAP for our customers. It's a case of implementation of that software and using that software to manage the storage arrays we're putting into our clients' environments. We also use it for PoCs. We'll deploy the software and demonstrate it for customers.
How has it helped my organization?
When you look at traditional, simplified storage, you would have a lot of manual command-line toolsets, you would have a lot of simple features and capabilities. With ONTAP and features like SnapMirror - the ability to have these more advanced capabilities - NetApp is leading that space. There are a lot of stats out there about what NetApp is doing around storage features and it's making it easier for our customers to consume rich storage features more easily.
The customers we work with absolutely use this solution for their mission-critical apps. For example, we have a university customer where NetApp underpins all their corporate systems. For them, that's mission-critical because they have to pay and manage, from an AP perspective, all of their internal customers. Without that system in place, without it being robust and reliable, they have no business, effectively, as a university. For them, it is absolutely mission-critical.
We have customers who have had ONTAP deployed for each of machine-learning, AI, real-time analytics, and similar groundbreaking applications. Our university customer is a good example. From an SAP perspective, they have a lot of rich analytics being done on that platform. ONTAP provides the best value for them. How the system gets architected is key, ensuring they have the right solution in place to get the best performance. The fact that NetApp performance, in general, is better than a lot of the competitors anyway has helped the university immensely.
In terms of helping us reduce the overall cost of storage, efficiencies such as Flash Cache and Flash Pool allow us to make better use of slower, cheaper storage and have some faster storage sitting up front taking a lot of the caching and the reading. The way that has been optimized for the NetApp platform is better than the competitors. It has reduced our cost of storage because we're buying cheaper storage, for the bulk capacity, which is really effective.
Storage efficiencies in ONTAP have been fantastic. For things like Snapshot-ing, when you are rolling out multiple clones, having good storage efficiency is really key.
What is most valuable?
Valuable features are SnapVault, SnapMirror, all the capabilities around Snapshot-ing.
Also, the ability to then spin up copies of data in other data centers, on other storage appliances, is the most valuable for us and the one that we see the most interest in from our customers.
What needs improvement?
I would like to see more in the public cloud space around things like object storage. A bit more granularity around how that gets deployed would be nice, but other than that I think they've got it nailed.
The trend is heading in that direction, where more and more customers want to deploy applications that leverage object storage. It would be nice to have a more seamless integration, although it's not bad at the moment.
What do I think about the stability of the solution?
ONTAP is now in its ninth version. It's the most robust software on a storage platform on the market at the moment. I don't think anyone else has the same capability with the same level of flexibility.
What do I think about the scalability of the solution?
The fact that you can have large clusters, you can keep bolting on more and more nodes, more and more appliances, makes it a lot more flexible than a lot of other providers. Normally, with a traditional SAN, you put a big SAN in the corner, stick some stuff into it, and leave it alone. Compared to having to buy another SAN with a different workload, the fact that, with NetApp, you can cluster and spread workloads across, makes it more scalable.
How are customer service and technical support?
From what limited exposure I've had personally, our local support is fantastic. In terms of the process of raising tickets, I've not heard of customers having issues with the support mechanisms that NetApp has in place.
Which solution did I use previously and why did I switch?
What typically drives the solution is the outcome for the customer. The customer will naturally follow down the path of needing a particular feature set to achieve some sort of outcome. We work through that list and figure out what that looks like. ONTAP seems to tick more of the boxes than any other product.
How was the initial setup?
For the average person, it might not be straightforward but, in my opinion, the setup is more straightforward when compared to other storage platforms. Active IQ and the tools you have access to are a lot better than the competitors'.
What about the implementation team?
Typically we work directly with NetApp on all our installations. Our experience with them has been fantastic. Really good guys, really good to work with, extremely knowledgeable.
What was our ROI?
We haven't measured ROI, but I guarantee there would be some. The cost per IOP is different for every customer environment so I can't give a figure for that.
Which other solutions did I evaluate?
IBM, since we're a partner. The reason I would go with NetApp is their products are a higher enterprise-grade than the IBM products, which is saying something. IBM is more of a mid-market play. The NetApp stuff is a more holistic, feature-rich set. It has more capabilities. The price points are roughly similar compared to competing products. NetApp is just a richer experience.
What other advice do I have?
Do your research. Undestand what NetApp can offer. Talk to local NetApp resources and you'll find out a lot. One of the challenges a lot of customers have is that they don't know what they don't know. The more you talk to people, the more you will understand. I would advise talking to the local resources first, see what they've got. They probably have a solution, as far as ONTAP is concerned, that would fit into your requirements, the outcomes you're looking for.
I sat in on a session about NVMe over Fabrics this morning here at NetApp Insight 2018. Reducing the latency, getting storage to the application as quickly as possible, is phenomenal. That becoming the new standard, instead of the old-school SCSI approach, is going to become the next big thing. The fact that they're reducing that controller piece in it, the latency drops so significantly - traditional Fiber Channel is missing out on an opportunity to improve performance.
In terms of using NVMe over Fabrics with existing Fiber Channel, the good thing is that if customers already have investment in Fiber Channel networks, they can still take advantage of new technology from a storage perspective, without having to worry about upgrading and forklifting in new, specific equipment for that particular purpose.
As a software set, from a storage perspective, I would rate NetApp at eight out of ten because the maturity of the product is so much greater than the competition. I don't think anybody else has the level of flexibility and feature sets that ONTAP has.
Disclosure: My company has a business relationship with this vendor other than being a customer. Partner.
Admin at Centene
ONTAP OS is super easy to use; failover works well
What is most valuable?
Definitely ONTAP. The command line. It's super easy to use.
How has it helped my organization?
The ONTAP is so easy to use. I can do my tasks pretty easily on there. If someone needs something quickly I can give them what they need pretty quickly.
What needs improvement?
The one thing I would really like to see - I don't know if they offer this or not. I know EMC has got really good: their SRDF replication is really good for keeping consistency with your backups, or the other side.
NetApp is crash consistent. I don't know the quality of the EMC one but that one seems to work really well. EMC is primarily block storage anyway so that is what it is build for.
What do I think about the stability of the solution?
It's pretty stable. There have been some random crashes we have had though, from a couple weird things.
There always seems to be some random bug in the code. If there is a random bug in the code, it seems like we have so many of these storage arrays that one of them is going to experience a crash from it. We have had a couple like that, zombie deletes, causing the controller to panic. We have had a couple weird things like that.
What do I think about the scalability of the solution?
Never really implemented one but it seemed to be pretty easy to scale out. If you have the money to buy one, to scale it out is nothing crazy.
How are customer service and technical support?
We have an in-house resource and usually, if there is something going wrong, he is the one that will handle it and give it direction. If we ever call it in we always get the front-line people and typically we don't need the front-line people. When we need support we need someone specialized, like a certain protocol or a certain aspect. Usually, that's kind of annoying, when we call in it's getting front-line people and it is an extra 30 minutes just to get to where we need to go, really.
Which solution did I use previously and why did I switch?
No, ever since I have been here at Centene, we have been using NetApp.
Which other solutions did I evaluate?
I know NetApp and EMC are at the top, but other than that we don't really have any. I haven't seen much for any other vendor, like Nimble or like a couple of others, we don't really deal with those.
What other advice do I have?
We use it for datastores, and do a little bit of SAN on it too. We use it for both, block and file storage.
My impression of NetApp as avendor of high performance SAN storage is that it's not as good as EMC. I don't have any complaints, really. I primarily use NetApp. I only use the EMCs a little bit.
I am more likely to consider NetApp for mission critical storage systems based on my experience with AFF. The failover seems to work pretty well, they seem to be pretty reliable. If you have a lot of clusters, a cluster that's broke out, it works pretty well. If it fails or crashes, you still have to fix it but it still works.
Performance is pretty good. It's a little hard to compare because I'm not really on the OS side. I don't really delegate storage provision so I hardly ever get to see the other side of the systems.
When selecting a vendor the most important criteria include is: can the vendor supply a solution that we need? If we need block storage, can they do block storage very well? If we need good replication, can they provide that? It just depends on what we need it for and if they can provide that solution the best. Our company doesn't have any really money constraint problems. It's more just about the solution than about the cost.
If someone was looking to buy one I would say: I love the ONTAP operating system. The support is pretty good. I would say the block side of NetApp is probably the weak point. It still does it well, but if you are doing file shares and datastores, you could use it for that. That is primarily what we use it for.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.

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I personally love using the ONTAP application, it gives me an overview of my dashboard. I have most of my mission Critical systems running on the NetApp. It works so well and its user friendly as compared to other Storage OS.
We just procured the AFF and I can wait to explore and dissect its contents and performance. Looking forward to great stuff.