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ExaGrid EX Series vs QoreStor comparison

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Comparison Buyer's Guide

Executive Summary

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

ExaGrid EX Series
Average Rating
9.0
Reviews Sentiment
6.1
Number of Reviews
7
Ranking in other categories
Deduplication Software (7th)
QoreStor
Average Rating
8.0
Reviews Sentiment
7.2
Number of Reviews
10
Ranking in other categories
Backup and Recovery (48th), Data Replication (10th), Disk Based Backup Systems (6th), Storage Software (4th), Disaster Recovery (DR) Software (24th), Software Defined Storage (SDS) (18th), Copy Data Management (6th), File and Object Storage (22nd)
 

Mindshare comparison

ExaGrid EX Series and QoreStor aren’t in the same category and serve different purposes. ExaGrid EX Series is designed for Deduplication Software and holds a mindshare of 4.9%, down 7.0% compared to last year.
QoreStor, on the other hand, focuses on Storage Software, holds 12.0% mindshare, up 3.7% since last year.
Deduplication Software Mindshare Distribution
ProductMindshare (%)
ExaGrid EX Series4.9%
Dell PowerProtect Data Domain21.2%
HPE StoreOnce17.4%
Other56.5%
Deduplication Software
Storage Software Mindshare Distribution
ProductMindshare (%)
QoreStor12.0%
DataCore SANsymphony21.3%
NetApp ONTAP20.5%
Other46.2%
Storage Software
 

Featured Reviews

DG
Information Technology advisor at Lotus Consulting
Improvements in data storage efficiency and customer support experience
ExaGrid EX Series and Veeam was easy to set up, and it worked seamlessly. It was very simple to use. We rarely needed to touch the ExaGrid boxes, except for upgrades. With the systems engineer from ExaGrid, and with our common knowledge of backup software, it was very easy to use. The performance was good, the interface was good, and the GUI was good. When ExaGrid introduced the air gapped feature, it was almost complete. Almost every hardware vendor has an air gapped feature, but they were significantly ahead of other vendors. The air gapped and immutable storage are very nice features. The price compared to other competitors was good with better features. It is not a cheap product, but compared to the features, it is a good competitor.
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

"The most valuable feature is the ease of use and data deduplication. It's extremely easy to use and does a very good job of data deduplication and compression."
"It is a solid and a quite simple solution, which is a good combination. The customers like the simplicity and its scale-out capacity. They like the support pricing, and even the extension capacity pricing, a fixed price, which the executive is offering in Czech market."
"ExaGrid EX Series and Veeam was easy to set up, and it worked seamlessly."
"The solution easily integrates with the backup targets, such as Veeam."
"The equipment is pretty solid."
"The tool has improved backup and recovery times. One of the key features contributing to this improvement is the landing zone and deduplication retention zone. When data is in the landing zone, the process is fast, ensuring smooth backup and recovery operations at high speeds. However, the process becomes slower for long-term backups moved to the retention zone due to fragmentation. So, if the data is older than a few days, the speed may be limited, especially for non-deduplicated data in the landing zone."
"The most valuable features of the solution are deduplication and landing zone."
"One of the main features is the landing zone, it is a particular space where the information is not duplicated."
"If storage costs are a problem, whether on-premises or cloud, QoreStor is worth a serious look."
"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."
"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."
"I would rate QoreStor a ten out of ten for what it offers for the price."
"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."
"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."
"Since we started to resell QoreStor, we have been using it internally; it's better than other backup solutions we have used or evaluated."
"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."
 

Cons

"The tool reduces storage footprint. However, clients are now storing data for longer durations with increasing requirements to retain backups for longer periods, particularly as a defense against ransomware attacks. As a result, the retention zone with duplicated data is experiencing more demand, leading to space constraints. This necessitates using higher-end, more expensive models to address the issue."
"The one place where we are sometimes losing the opportunity with ExaGrid is that a few customers still require a fiber channel connectivity, which is not always possible."
"The support is not that fast to deal with our concerns. It is next day support, they could improve on the speed."
"When speaking about a scale-out, you want to have better equipment. You cannot just add a disc to the foreign equipment. You have to buy another one and put it together, like parallel."
"I would like for them to develop direct cloud integration with a third-party cloud. Direct integration with AWS and other cloud providers."
"The solution could improve by switching to a flash-type solution rather than the spinning drives that they currently use. However, we have not had any failure with the spinning drives. The flash-type drives are more up-to-date and are something that is in their roadmap."
"The product's documentation can be made more precise."
"Overall, I am happy with this solution, but a way to export configuration settings would be beneficial."
"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."
"The setup of the software is definitely not the easiest thing in the world."
"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 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 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."
"Support is one point of improvement for Quest QoreStor. Support is sometimes not adequate."
 

Pricing and Cost Advice

"The current agreement has 21 terabytes of free space and it cost approximately $35,000."
"The previous solutions I have used both included the Backup Software and the Appliance making it hard to compare to this solution. However, overall the solution is reasonably priced for the features you receive. ExaGrid EX Series is priced better than HP, Dell, and possibly Commvault which I have compared in the past."
"In comparison to other solutions, it's affordable. They're all too expensive."
"I rate ExaGrid EX Series' pricing eight to nine out of ten."
"My company had to pay 1,60,000 EUR for the system we use, and the payment was made just once for the system and five years of full support."
"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."
"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."
"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
16%
Financial Services Firm
8%
Construction Company
7%
Outsourcing Company
6%
Comms Service Provider
14%
Manufacturing Company
12%
Financial Services Firm
11%
Construction Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise2
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise1
Large Enterprise2
 

Questions from the Community

What needs improvement with ExaGrid EX Series?
Everything can always be better, so I would give it a nine.
What is your primary use case for ExaGrid EX Series?
We used ExaGrid EX Series as a landing zone for Veeam software. Initially they did not have immutable storage, but when they released that feature, we implemented it. We used it with Veeam software...
What advice do you have for others considering ExaGrid EX Series?
I was a customer. My overall rating for ExaGrid EX Series is 9 out of 10.
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

EX Series
QoreStor
 

Overview

 

Sample Customers

NCI Group, North Attleborough Public School, North Kingstown School Department, NPS Pharmaceuticals, Prudential Douglas Elliman, Rathbone Brothers PLC, Rio Hondo College, Ruder Finn, Sarah Lawrence College
American Airlines, at&t, Bank of America. Barclays, ebay, Ford
Find out what your peers are saying about Dell Technologies, Hewlett Packard Enterprise, Veritas and others in Deduplication Software. Updated: October 2026.
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