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Hitachi ShadowImage 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

Hitachi ShadowImage
Ranking in Data Replication
7th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
2
Ranking in other categories
No ranking in other categories
QoreStor
Ranking in Data Replication
8th
Average Rating
8.0
Reviews Sentiment
7.2
Number of Reviews
10
Ranking in other categories
Backup and Recovery (54th), Disk Based Backup Systems (7th), Storage Software (4th), Disaster Recovery (DR) Software (26th), Software Defined Storage (SDS) (19th), Copy Data Management (6th), File and Object Storage (23rd)
 

Mindshare comparison

As of July 2026, in the Data Replication category, the mindshare of Hitachi ShadowImage is 3.8%, down from 5.6% compared to the previous year. The mindshare of QoreStor is 4.2%, up from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Data Replication Mindshare Distribution
ProductMindshare (%)
Hitachi ShadowImage3.8%
QoreStor4.2%
Other92.0%
Data Replication
 

Featured Reviews

Bratislav Petkovic - PeerSpot reviewer
Team Lead for Core Infrastructure at Raiffeisen bank Serbia
Efficient replication and helpful for improving data processing and management
The technology behind Hitachi ShadowImage has been around for a long time, and while it works correctly, it does have some issues. We have experienced problems with it, even though Hitachi provides good hardware. Technical support could also be improved, as it sometimes takes a few days to resolve issues.
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 features are its ability to handle large databases efficiently and the asynchronous replication capability."
"The most valuable feature of Hitachi ShadowImage is high-speed data transfer from one server to another. Other solutions would have problems with transferring 50 TB of data. I also like that Hitachi ShadowImage is easy to use."
"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."
"I would rate QoreStor a ten out of ten for what it offers for the price."
"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."
"Quest QoreStor is very stable compared to our previous solution."
"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 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."
 

Cons

"We have experienced problems with it, even though Hitachi provides good hardware."
"API and script configuration in Hitachi ShadowImage is sometimes complicated, so this is an area for improvement. Another area for improvement is that the Hitachi ShadowImage interface isn't as user-friendly."
"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."
"They need to increase their maximum capacity. Other than that, they're doing a pretty good job."
"The air gap feature is something I'd really like to see in QoreStor."
"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."
"Support is one point of improvement for Quest QoreStor. Support is sometimes not adequate."
"The ransomware protection of QoreStor could use improvement."
"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

"I don't have pricing information for Hitachi ShadowImage because my manager handled it."
"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."
"The cost is per terabyte, and overall, the cost was reasonable when compared to some competitors."
"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
No data available
Manufacturing Company
14%
Financial Services Firm
12%
Comms Service Provider
10%
Construction Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise1
Large Enterprise2
 

Questions from the Community

What is your experience regarding pricing and costs for Hitachi ShadowImage?
The pricing of Hitachi ShadowImage is reasonable, especially when you purchase Hitachi storage, as ShadowImage and Thin Image are part of the protector. The protector includes several components li...
What needs improvement with Hitachi ShadowImage?
The technology behind Hitachi ShadowImage has been around for a long time, and while it works correctly, it does have some issues. We have experienced problems with it, even though Hitachi provides...
What is your primary use case for Hitachi ShadowImage?
We use Hitachi ShadowImage for data replication processes. It is a practical tool for copying data from one LUN disk to another within the same storage. In our bank, we utilize it for making tests ...
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

K&H, NCF, Aokang Group
American Airlines, at&t, Bank of America. Barclays, ebay, Ford
Find out what your peers are saying about Hitachi ShadowImage vs. QoreStor and other solutions. Updated: June 2026.
906,960 professionals have used our research since 2012.