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QoreStor vs Synology DSM comparison

 

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

QoreStor
Ranking in Backup and Recovery
51st
Average Rating
8.0
Reviews Sentiment
7.2
Number of Reviews
10
Ranking in other categories
Data Replication (9th), Disk Based Backup Systems (7th), Storage Software (4th), Disaster Recovery (DR) Software (25th), Software Defined Storage (SDS) (18th), Copy Data Management (6th), File and Object Storage (22nd)
Synology DSM
Ranking in Backup and Recovery
52nd
Average Rating
9.0
Reviews Sentiment
8.0
Number of Reviews
10
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Backup and Recovery category, the mindshare of QoreStor is 0.8%, up from 0.1% compared to the previous year. The mindshare of Synology DSM is 1.3%, down from 1.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Backup and Recovery Mindshare Distribution
ProductMindshare (%)
QoreStor0.8%
Synology DSM1.3%
Other97.9%
Backup and Recovery
 

Featured Reviews

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.
Michael Adejoh - PeerSpot reviewer
Solutions Manager at Excel Connect Ventures
Reliable and cost-effective
One area where Synology DSM could improve is in enhancing its ability to detect and respond to security threats during backups and replication. Currently, it lacks the capability to automatically stop backups if it detects a virus or suspicious network activity, as some third-party solutions can. Having AI-driven analytics to identify anomalies and halt backups during potential attacks, along with notifications to administrators, would be valuable. Additionally, providing a dashboard for monitoring the backup environment's security would be a beneficial feature. These improvements would help address security concerns and make Synology more competitive in this aspect.

Quotes from Members

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

Pros

"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."
"Quest QoreStor definitely saved us money."
"It integrates with various backup software solutions, which makes it compatible with existing backup workflows and processes."
"This software solution can be installed on many different types of hardware, which makes it very flexible. We can run it on virtual machines or virtual servers, providing convenience for solutions of varying sizes, from small to large."
"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."
"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."
"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."
"QoreStor has helped to reduce our backup storage requirements on-premise by at least 90%."
"Synology DSM is very easy to work and operate."
"It offers a variety of software options through its package center, allowing users to customize their NAS device to serve multiple purposes."
"The product performs well. It is easy to use and implement."
"The most valuable feature of the solution is that it serves as a backup for our company's virtual machine."
"The most valuable features are the basic storage, file management, Btrfs file system, and built-in backups that come with the solution."
"The most valuable aspect is its ability to handle multiple disks."
"The solution's most valuable feature stems from its ease of use, making it the tool's most interesting part."
"Because of its simplicity and the wide array of features it offers, I would recommend DSM for both tech-savvy individuals and those who prefer a straightforward file-serving solution."
 

Cons

"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."
"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."
"They need to increase their maximum capacity. Other than that, they're doing a pretty good job."
"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."
"Support is one point of improvement for Quest QoreStor. Support is sometimes not adequate."
"There can be some kind of monitoring solutions to alert users to issues with the appliance or software, making it easy for customers to monitor their systems in the field."
"The air gap feature is something I'd really like to see in QoreStor."
"The management interface is in need of improvement. The graphical user interface (GUI) for the web management tools appears clunky, and not super intuitive."
"Synology DSM's user interface is not quite intuitive."
"One area where Synology DSM could improve is in enhancing its ability to detect and respond to security threats during backups and replication."
"The product's only shortcoming is pricing, as it is an expensive solution."
"The only bothersome aspect is that the device is aging."
"Even though Synology provides a backup solution, it does not recognize the VM movement across cluster hosts."
"Users may lose their data if they don't configure the solution properly."
"There's a surveillance application that allows you to connect IP cameras and stream footage to Synology and it is a great feature, but it's not always clear that adding more cameras may require purchasing additional licenses."
"Synology DSM is a good enough solution for small and medium companies, but I have not seen a big configuration of the solution for a big organization."
 

Pricing and Cost Advice

"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."
"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 varies widely, catering to a broad range of needs."
"The price of the solution is very good."
"Synology DSM is a cheap solution."
"Synology DSM is a free tool."
"It is quite an affordable solution."
"The solution’s pricing is neither cheap nor expensive."
"The licensing part of the solution is free. The hardware is more expensive than the other solutions in the market, but it's okay in the long run."
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Top Industries

By visitors reading reviews
Manufacturing Company
15%
Financial Services Firm
11%
Comms Service Provider
10%
Construction Company
9%
Manufacturing Company
9%
Comms Service Provider
8%
Computer Software Company
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise1
Large Enterprise2
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise4
Large Enterprise1
 

Questions from the Community

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...
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Also Known As

QoreStor
Synology DiskStation Manager (DSM)
 

Overview

 

Sample Customers

American Airlines, at&t, Bank of America. Barclays, ebay, Ford
Information Not Available
Find out what your peers are saying about QoreStor vs. Synology DSM and other solutions. Updated: August 2026.
909,153 professionals have used our research since 2012.