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Dell PowerProtect DD (Data Domain) vs QoreStor comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Aug 19, 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

Dell PowerProtect DD (Data ...
Ranking in Disk Based Backup Systems
1st
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
76
Ranking in other categories
Deduplication Software (1st)
QoreStor
Ranking in Disk Based Backup Systems
8th
Average Rating
8.2
Reviews Sentiment
7.3
Number of Reviews
9
Ranking in other categories
Backup and Recovery (54th), Data Replication (12th), Storage Software (5th), Disaster Recovery (DR) Software (30th), Software Defined Storage (SDS) (23rd), Copy Data Management (6th), File and Object Storage (22nd)
 

Mindshare comparison

As of October 2025, in the Disk Based Backup Systems category, the mindshare of Dell PowerProtect DD (Data Domain) is 39.9%, down from 42.3% compared to the previous year. The mindshare of QoreStor is 1.2%, up from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Disk Based Backup Systems Market Share Distribution
ProductMarket Share (%)
Dell PowerProtect DD (Data Domain)39.9%
QoreStor1.2%
Other58.9%
Disk Based Backup Systems
 

Featured Reviews

Faisal_Zia - PeerSpot reviewer
Offers efficient data management with robust features and reliable performance
Dell PowerProtect DD (Data Domain) can be improved in terms of price. While Dell is providing a proper device, other solutions, such as Symantec, can replicate their data through any NAS storage. Although their deduplication and compression might not be as effective, they can still accomplish the task. Medium-level and SME-level businesses can easily utilize this feature, but Dell PowerProtect DD (Data Domain) is a relatively expensive solution to propose to customers.
Jeff Manuszak - PeerSpot reviewer
Cost-efficient, highly scalable, and installable on different types of hardware
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. We are pretty lenient as we do a lot of IT support ourselves. We are not very hard on support organizations, but when a customer has a support issue, it would be easier if the support processes were a little bit more automated. It would be beneficial to have an easier way to upload diagnostic dump files. They can make it easy for the customer to collect the diagnostic data. 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. This is especially critical because it stores customers' backups, and a failure can have significant business impacts. If a customer does not have the backups and has a disaster, they can be out of business, so monitoring is key.

Quotes from Members

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

Pros

"The solution has been awesome over the last ten years, offering stability and reliability, which I recommend for stable storage."
"The compression aspect of the solution is great."
"9900 has around 1.5 petabits of capacity in a single rack, and that's huge."
"The most valuable feature of Dell PowerProtect DD (Data Domain) is its deduplication capability."
"The solution is very scalable."
"Dell PowerProtect DD’s most valuable feature is data deduplication."
"I like Data Domain as a protocol for data backup."
"By using Data Domain, we get the advantage of data deduplication, reducing data size."
"Quest QoreStor is very stable compared to our previous solution."
"It integrates with various backup software solutions, which makes it compatible with existing backup workflows and processes."
"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."
"Data deduplication and replication would be the top two features. The encryption and cloud tiering are also attractive for the future."
"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."
"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 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."
 

Cons

"Dell PowerProtect DD should come out with its own system so we do not have to use Data Domain. For example, something similar to what Symantec has done."
"They still have hardware different from the software."
"Dell PowerProtect DD (Data Domain) is a relatively expensive solution to propose to customers."
"The pricing model needs to be improved."
"The price of the product is high."
"I would like to see better integration and support for backing up to cloud providers such as Alibaba Cloud."
"Looking at Dell PowerProtect DD (Data Domain), there is a need for improvement, especially in terms of protection from cyber resiliency, cyber recovery, or man-in-the-middle attacks."
"Data Domain lacks compatibility with fiber channels and tapes. We can't use it with a tape library. That's an issue in Latin America sometimes because a lot of clients still use tapes for budget reasons. Maybe they have a lot of archives. In North America and Europe, they do a lot of archiving, but they use the cloud more than we do. Sometimes we have to put together a Frankenstein where we connect another server to the tape library and send all the data there."
"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 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 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."
"The ransomware protection of QoreStor could use improvement."
"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 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."
"Overall, I am happy with this solution, but a way to export configuration settings would be beneficial."
 

Pricing and Cost Advice

"The product is expensive."
"Pricing for this product could still be improved, though several years ago, its price was very high. When buying an IDPA product such as Dell EMC PowerProtect DD (Data Domain), you don't have to buy anything else, because you'll have an integrated solution: a data domain appliance plus software."
"If we do not move to the cloud solution and stay with our on-premise version we will miss some new features."
"I can't remember what the license costs are. They might be paid monthly or every two months."
"We usually buy products at the end year, and the license is included."
"On a scale where one represents high price, and ten represents low price, I rate the solution a five, which means that the solution is of medium pricing."
"The cost is expensive."
"The price of the backup appliance is slightly expensive. Compared to other vendors, the pricing will be slightly higher."
"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
Computer Software Company
13%
Financial Services Firm
10%
Manufacturing Company
10%
Government
7%
Performing Arts
15%
Computer Software Company
10%
Financial Services Firm
8%
Educational Organization
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise21
Large Enterprise32
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise1
Large Enterprise2
 

Questions from the Community

What is your primary use case for Dell EMC PowerProtect DD (Data Domain)?
The typical use case for Dell PowerProtect DD (Data Domain) is for backup purposes; it is disk-based backup, which provides fast backup capabilities. Additionally, data can be replicated from site ...
What do you like most about Dell PowerProtect DD (Data Domain)?
The product, a disk backup solution, improves our data application tasks. We used tape libraries with Dev drives in legacy architectures, resulting in slow backups compared to modern drives like NV...
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

DataDomain, Dell EMC Data Domain, PowerProtect Data Domain
QoreStor
 

Overview

 

Sample Customers

The US Army, City of Houston, Lloyds TSB, TiVo, Teck, Ingram Entertainment, The New York Mets
American Airlines, at&t, Bank of America. Barclays, ebay, Ford
Find out what your peers are saying about Dell PowerProtect DD (Data Domain) vs. QoreStor and other solutions. Updated: September 2025.
868,787 professionals have used our research since 2012.