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NetApp ONTAP vs QoreStor comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Mar 1, 2026

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
7.2
Number of Reviews
94
Ranking in other categories
No ranking in other categories
QoreStor
Ranking in Storage Software
4th
Average Rating
8.0
Reviews Sentiment
7.2
Number of Reviews
10
Ranking in other categories
Backup and Recovery (50th), Data Replication (8th), Disk Based Backup Systems (7th), Disaster Recovery (DR) Software (25th), Software Defined Storage (SDS) (18th), Copy Data Management (6th), File and Object Storage (22nd)
 

Mindshare comparison

As of September 2026, in the Storage Software category, the mindshare of NetApp ONTAP is 20.1%, down from 37.7% compared to the previous year. The mindshare of QoreStor is 11.7%, up from 2.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Storage Software Mindshare Distribution
ProductMindshare (%)
NetApp ONTAP20.1%
QoreStor11.7%
Other68.2%
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.
MW
Works at a financial services firm with 11-50 employees
Backup storage has shrunk dramatically with deduplication but still needs stronger security options
The air gap feature is something I'd really like to see in QoreStor. There's no native air gap capability right now, and for security-conscious environments, that's a gap. The configuration export is also limited in QoreStor. If you want to document your setup or migrate configuration to a new instance, it requires more manual work than it should.

Quotes from Members

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

Pros

"It most valuable feature is its stability. A product has to be stable."
"The product is stable, easy to deploy and it just works."
"Its ease of use, for the most part, through the interfaces is valuable."
"I love the replication technologies which keep a customer out of risk. At any time, we can do a seamless failover/failback, and have the latest data on it. The SnapVault is another excellent feature. It's used for remote disk-based backups so we don't need to depend on tape backups with their long restore times."
"It has the ability to bring up disaster recovery quickly."
"If you are looking for a unified environment where you can use all your protocols anytime, you want NetApp ONTAP to be the answer."
"We saw the benefits of NetApp ONTAP almost immediately; snapshots are amazing, the auto-grow on the volumes and SnapMirror are also notable features, and there are so many things that make it a good product."
"The moment you start using it is when the magic happens."
"I would rate QoreStor a ten out of ten for what it offers for the price."
"Overall, it simplifies the management of backup and gives me a more secure feeling that my data is going to be available if I need to retrieve it."
"Quest QoreStor is very stable compared to our previous solution."
"Deduplication is the most valuable feature. It saves us a lot of space. When we back up 100 terabytes of data, after dedupe, it only uses maybe five to six terabytes for the disk space in QoreStor."
"QoreStor has helped to reduce our backup storage requirements on-premise by at least 90%."
"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."
"Data deduplication and replication would be the top two features. The encryption and cloud tiering are also attractive for the future."
"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."
 

Cons

"I need to be able to validate how the host is performing from the storage, as I am concerned about the host performance and storage connectivity to the host."
"In the future, we are going to migrate to Windows-based platforms. I want to see if we can achieve similar control and implementation with Windows, basically installing NetApp ONTAP onto a Windows machine and not just onto the Linux machine."
"I would like to see Synchronize Snap mode in the next release."
"NetApp ONTAP could be improved with additional features to help handle the backup of more than 10 to 15 devices simultaneously."
"The way you attach, move, migrate, and access LUNs is complicated, and if you do not know how to do it, it can be a great problem for your IT environment."
"I would like the ability to perform backups in the cloud. That way you don't have to worry about building the data center. Everything's already in the cloud."
"The back-up side of the solution could be improved, as could the archive."
"NetApp ONTAP has several limitations that we encounter, primarily related to large enterprise clients. They do not affect small clients that NetApp may have. While these limitations are clearly described, some issues require us to develop workarounds."
"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."
"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 ransomware protection of QoreStor could use improvement."
"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."
"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."
"The setup of the software is definitely not the easiest thing in the world."
"They need to increase their maximum capacity. Other than that, they're doing a pretty good job."
"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."
 

Pricing and Cost Advice

"The licensing prices are really high."
"The price point is very competitive and inexpensive compared to what you receive from other vendors in the market."
"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."
"With other vendors, we need to buy a separate license for a third-party storage, but with NetApp, you don't need to buy a license, as it will come up with the storage."
"They could reduce the price."
"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."
"We have seen ROI, especially with the deduplication. We have a high ratio of deduplication and are way past 70 percent of our VDI, as we have almost 400TBs on our VDI. We have been able to save at least a quarter of a petabyte of space."
"We have seen ROI as we can fit a lot more storage in one rack."
"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."
"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."
"Its pricing model is very attractive. You have one price, and you get everything from QoreStor."
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Top Industries

By visitors reading reviews
Manufacturing Company
15%
Construction Company
11%
Financial Services Firm
11%
Outsourcing Company
9%
Manufacturing Company
14%
Comms Service Provider
12%
Financial Services Firm
10%
Construction Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise13
Large Enterprise69
By reviewers
Company SizeCount
Small Business7
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 needs improvement with NetApp ONTAP?
I have encountered a couple of issues with data deduplication and compression. If there were an option to set up those items separately, it would make it easier to configure and monitor those aspects.
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: September 2026.
914,262 professionals have used our research since 2012.