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Clumio vs QoreStor 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

Clumio
Ranking in Backup and Recovery
20th
Average Rating
9.2
Reviews Sentiment
5.5
Number of Reviews
7
Ranking in other categories
Cloud Backup (13th), SaaS Backup (4th), AI IT Support (8th)
QoreStor
Ranking in Backup and Recovery
53rd
Average Rating
8.0
Reviews Sentiment
7.2
Number of Reviews
10
Ranking in other categories
Data Replication (8th), Disk Based Backup Systems (8th), Storage Software (4th), Disaster Recovery (DR) Software (28th), Software Defined Storage (SDS) (19th), Copy Data Management (6th), File and Object Storage (23rd)
 

Mindshare comparison

As of June 2026, in the Backup and Recovery category, the mindshare of Clumio is 1.1%, up from 0.2% compared to the previous year. The mindshare of QoreStor is 0.8%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Backup and Recovery Mindshare Distribution
ProductMindshare (%)
Clumio1.1%
QoreStor0.8%
Other98.1%
Backup and Recovery
 

Featured Reviews

reviewer2845605 - PeerSpot reviewer
Senior Software Engineer at a outsourcing company with 10,001+ employees
Ransomware recovery has become validated and protects critical workloads across multiple accounts
The account onboarding process deploys around 20 IAM roles per account, which is heavy. Consolidating those or offering a slimmer permission set for read-only backup (versus full restore) would help with security review friction. Cross-account restore into a target account still requires manual steps for KMS. If Clumio could handle re-encrypting with the target account's CMK during restore rather than requiring Multi-Region Key pre-staging, that would save significant preparation time. Also, the restore API could surface better progress telemetry since right now, large RDS restores are a bit of a black box until they complete or fail. Finally, DocumentDB and MongoDB Atlas backup support would round out our stack nicely.
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 has improved our disaster recovery footprint; previously, backups were only stored on premises, and having an offsite backup improves our reliability and security."
"Working with the Clumio/Commvault team has been a very good experience."
"We now have the peace of mind knowing that our entire AWS infrastructure is fully backed up into an air-gapped environment."
"Clumio has a straightforward setup"
"Clumio proved to be the most cost-effective option."
"Clumio gave us a genuinely isolated vault that sits outside our AWS Organization's blast radius."
"We have been able to safely and securely save our backups off of AWS."
"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."
"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."
"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."
"QoreStor has helped to reduce our backup storage requirements on-premise by at least 90%."
"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."
"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."
"I would rate QoreStor a ten out of ten for what it offers for the price."
 

Cons

"It would be beneficial to show when backups are available and to receive alerts if there are any issues with the backups."
"The account onboarding process deploys around 20 IAM roles per account, which is heavy."
"They need to improve their SQL backup services"
"Overall, I am happy with this solution, but a way to export configuration settings would be beneficial."
"The air gap feature is something I'd really like to see in QoreStor."
"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 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."
"The ransomware protection of QoreStor could use improvement."
"Support is one point of improvement for Quest QoreStor. Support is sometimes not adequate."
"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

Information not available
"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."
"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
Comms Service Provider
14%
Outsourcing Company
11%
Manufacturing Company
11%
Construction Company
9%
Manufacturing Company
14%
Financial Services Firm
12%
Construction Company
10%
Comms Service Provider
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business2
Midsize Enterprise3
Large Enterprise5
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise1
Large Enterprise2
 

Questions from the Community

What is your experience regarding pricing and costs for Clumio?
Price it against the cost of the alternative, not against native AWS Backup. Native backup is cheaper on paper but doesn't give you ransomware isolation. When you factor in the engineering time to ...
What needs improvement with Clumio?
The account onboarding process deploys around 20 IAM roles per account, which is heavy. Consolidating those or offering a slimmer permission set for read-only backup (versus full restore) would hel...
What advice do you have for others considering Clumio?
Invest time upfront in your Terraform module design for Clumio policies. Decide early whether backup frequency is controlled per environment or per caller because refactoring that later across many...
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...
 

Comparisons

 

Also Known As

No data available
QoreStor
 

Overview

 

Sample Customers

Cava Restaurants, Pacific Dental Services, Defiance Digital, Frogslayer, Motion Picture Associations, Point Loma, Club Assist, Immigrant Services Calgary (ISC), Lakeside Process Controls, Maple Reindeers
American Airlines, at&t, Bank of America. Barclays, ebay, Ford
Find out what your peers are saying about Clumio vs. QoreStor and other solutions. Updated: June 2026.
900,747 professionals have used our research since 2012.