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NetApp ONTAP vs QoreStor comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 23, 2025

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

NetApp ONTAP
Ranking in Storage Software
1st
Average Rating
8.6
Reviews Sentiment
7.3
Number of Reviews
92
Ranking in other categories
No ranking in other categories
QoreStor
Ranking in Storage Software
5th
Average Rating
8.2
Reviews Sentiment
7.3
Number of Reviews
9
Ranking in other categories
Backup and Recovery (53rd), Data Replication (11th), Disk Based Backup Systems (8th), Disaster Recovery (DR) Software (30th), Software Defined Storage (SDS) (21st), Copy Data Management (6th), File and Object Storage (22nd)
 

Mindshare comparison

As of January 2026, in the Storage Software category, the mindshare of NetApp ONTAP is 27.8%, down from 44.1% compared to the previous year. The mindshare of QoreStor is 4.9%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Storage Software Market Share Distribution
ProductMarket Share (%)
NetApp ONTAP27.8%
QoreStor4.9%
Other67.3%
Storage Software
 

Featured Reviews

BK
Senior Storage Engineer at Shell
Data management and availability improve operations, but cost and support need attention
For snapshots, there should be something similar to a recycle bin. When someone mistakenly deletes a snapshot, it should be stored for about two days before disappearing from the system. Regarding storage optimization, when purchasing a 10 terabyte disk, after formatting, you can only use approximately 8 terabytes. They should improve this so users can utilize 90% instead of 80% of the disk space. The support response needs improvement, especially for P1 cases. When critical cases are raised, they should ensure they call the customer and follow up properly. Comparing NetApp ONTAP to other solutions such as EMC, the cost of contract renewals and warranties is relatively expensive. They should extend their renewal window beyond the current six months to one year options. A longer warranty period of two years for new systems, controllers, or filers would be beneficial. Overall, they should reduce subscription costs for businesses.
CH
System Administrator at a wholesaler/distributor with 10,001+ employees
Cost savings and efficient data management improve operations but support quality varies
The importance of support is significant to me. I was working for a service provider, and all of our customers had a Quest or warning. Sometimes the support really underperforms. I always had to get it escalated or ask for someone specifically because those other people would just read knowledge-based articles that I had already done myself. Quest QoreStor does not work with any backup software, server, or storage hardware. It has the hardware compatibility list, and you need a specific number of IOPS, so it needs to run on decent hardware at least to have enough input-output operations. Otherwise, the setup result will be canceled. I'm not too sure if there are still physical appliances, but when I first started, we had some customers with a physical Quest QoreStor appliance, and it would only run on certain hardware. It doesn't work with every backup program. For example, Veritas Backup Exec is incompatible, but Veeam is compatible, and V Ranger is compatible as well. I didn't even know that Quest QoreStor has any static AI and behavioral AI technologies.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"SnapMirror is a good solution, because we can take our production data and replicate it over to our DR data center with minimal administrative effort, which is huge."
"The impact of NetApp ONTAP technology on the way I do business is significant because, unlike traditional file systems, it has different features that enable it to operate as an operating system, providing a broader scope of control and allowing different types of network storage, whether it's file shares such as SMB, NFS, or iSCSI block for low-latency use cases."
"It is very easy to scale, so we started with a four-node cluster and added it to a six-node cluster. We've also done some other modifications in between."
"We can do upgrades without taking it down. We have had nodes fail and people just kept working."
"The MFS report is the best feature for us."
"What I appreciate the most about NetApp ONTAP is that the customer service is great and documentation is also great."
"The ability to spin up copies of data in other data centers, on other storage appliances, is the most valuable for us."
"Its typical use case is storing files and getting data, so it does its use case well."
"The features we use for the data deduplication are nice because we're able to back up a much larger amount of data, yet it doesn't necessarily take up that much data on the devices."
"We need revisions and safe backup so that it could be held up in court, but deduplication and compression are the main features why we have Quest QoreStor. That's where it really shines. I use ZFS and XFS at home, and Quest QoreStor is even better."
"Quest QoreStor is very stable compared to our previous solution."
"QoreStor has helped us to reduce our backup storage requirements on-premises. We've been using the same devices for quite a while, and so it lets us keep using them as opposed to having to rip out all that hardware and create a new on-prem solution. The advantage here is even if we had to retire the hardware tomorrow, the QoreStor part doesn't change. We just have to have additional hardware and put the solution back on whatever hardware we pick and it'll do the same thing."
"The dedupe and compression are pretty extreme. On disk, we're getting dedupe rates of up to 65 percent of data and compression of 34 percent. When you go to the cloud, it's more like 76 percent for dedupe and almost 50 percent for compression."
"Quest QoreStor definitely saved us money."
"The extreme compression of data is a big thing for us. We were looking for an online backup solution, and QoreStor is very good in terms of data compression. It helps us minimize the required storage in the Blob Storage environment."
"It integrates with various backup software solutions, which makes it compatible with existing backup workflows and processes."
 

Cons

"The vendor diagnostics, which allows for movement from one vendor to another vendor using the application technology that is available. It should be able to talk to any vendor, not just NetApp to NetApp. We should be able to replicate the data, so the next feature should not be vendor specific."
"They should make the storage arrays more easily tied to your accounts."
"They could also improve on their ability to back up storage."
"It is not as good as we need from a performance perspective. At the moment, we are always running out of CPU on the controllers, even the high-end solutions."
"You really need OnCommand to do a lot of cool stuff with NetApp, and they make it hard to get."
"The back-up side of the solution could be improved, as could the archive. We still have to rely on third-party backup programs and other archiving solutions. If it was offered by NetApp itself, it would be much better."
"The older UI is not ideal."
"The toughest thing that we have right now is a cabling issue. There are so many that you need to connect."
"They could improve on support a little bit. We have not had to engage their support much, but when we do have issues, it can take longer to get things resolved."
"The installation could use improvement. The initial installation was a little touchy and it's not really user-installable. You have to have a connection to support to install."
"In terms of improvement, we would like to have an Air Gap feature to prevent a virus from attaching to something. So that when we don't do a backup, we want the QoreStor to stay offline. It would be a nice feature to have."
"They need to increase their maximum capacity. Other than that, they're doing a pretty good job."
"Overall, I am happy with this solution, but a way to export configuration settings would be beneficial. After everything is set up and configured, there should be a way to export the configuration. In case something happens to the QoreStor server, and we need to reinstall and configure everything, being able to import the configuration would be helpful. This feature does not currently exist."
"Overall, I am happy with this solution, but a way to export configuration settings would be beneficial."
"The management interface is in need of improvement. The graphical user interface (GUI) for the web management tools appears clunky, and not super intuitive."
"The setup of the software is definitely not the easiest thing. I worked a lot with Quest engineers, especially in the early days when we were first testing it and trying it out. I actually had some of the developers working with us at one point because they were going through these point releases, and I was having trouble getting it to work in this S3-compatible situation. We got it all working eventually, but setup is definitely not the easiest thing in the world."
 

Pricing and Cost Advice

"The solution has helped us reduce the overall cost of storage by doing an OPEX agreement with NetApp, we are paying based on utilization. Instead of fronting 30 petabytes worth of storage, we are paying for what we're using."
"At first, it's expensive. Once you start using it, it's not that expensive. When you see all the benefits, it's acceptable. It could always be better, but you get what you pay for."
"ONTAP has helped our organization reduce its overall cost of storage (somewhere in the high millions)."
"It has been cost-efficient. Compared to our legacy Dell infrastructure, we have realized cost savings. It is good."
"The price could be a little bit cheaper, but you get what you pay for."
"This solution has helped our organization reduce our overall cost of storage. We're part of the NetApp OnDemand, where we lease it. Also, it doesn't take as many people to administer the solution as some other products."
"It helps us save money using compression and deduplication."
"It's not an all inclusive model. You have the option to purchase modules to make the entire ecosystem coherent. I would like the option to pay one price and get everything all inclusive, like OnCommand."
"Its pricing model is very attractive. You have one price, and you get everything from QoreStor."
"Quest QoreStor's pricing is affordable. We evaluated Veeam, a well-known company for backup solutions, but found their pricing to be quite high. Veeam's price was almost double. For us, Quest QoreStor is very affordable."
"The cost is per terabyte, and overall, the cost was reasonable when compared to some competitors."
"The pricing is good. It is competitive for a managed services provider. I like the ability to pay by the terabyte, allowing for an incremental cost that we and our customers can afford, so the solution grows with the customer."
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Top Industries

By visitors reading reviews
Manufacturing Company
22%
University
8%
Computer Software Company
7%
Transportation Company
7%
Performing Arts
12%
Computer Software Company
9%
Manufacturing Company
9%
Media Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise13
Large Enterprise66
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise1
Large Enterprise2
 

Questions from the Community

How does Azure NetApp Files compare to NetApp ONTAP?
Azure NetApp Files is a Microsoft Azure file storage service built on NetApp technology. The platform combines the file capabilities of Azure and NetApp to move critical file-based applications to ...
What do you like most about NetApp ONTAP?
We do not face any glitches or downtime.
What else besides data replication does QoreStor offer?
Quest QoreStor can be used for multiple things besides data replication. For example, it can be trusted to make a backup of your data. You know that replication and backups are different, right? Re...
How does Quest QoreStore protect your data?
One of our favorite features of Quest QoreStore for data protection isn't the backup, actually, though we're using it actively (maybe just as much as data replication, to be honest). We absolutely ...
How does Quest QoreStore solve repetitive data replicas?
When I first found out about data replication and the many benefits it had, I couldn't help but wonder - what about the copies you don't need? Like it's unavoidable for some of the copies to get da...
 

Also Known As

No data available
QoreStor
 

Overview

 

Sample Customers

1&1 IONOS, Acıbadem Healthcare Group, Adder Technologies, Aero Vodochody Aerospace
American Airlines, at&t, Bank of America. Barclays, ebay, Ford
Find out what your peers are saying about NetApp ONTAP vs. QoreStor and other solutions. Updated: December 2025.
881,082 professionals have used our research since 2012.