Data deduplication.
Owner with 51-200 employees
Entry level model, even more disk space would be valuable.
What is most valuable?
How has it helped my organization?
Backups are much more optimized, and we can take more backups and more often because of data deduplication.
What needs improvement?
This is an entry level model, even more disk space would be valuable.
For how long have I used the solution?
HP StoreOnce 2620 iSCSI Backup Storage - 1 year
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HPE StoreOnce
May 2025

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What was my experience with deployment of the solution?
No
What do I think about the stability of the solution?
So far, no.
What do I think about the scalability of the solution?
No. This is an entry level model, and this one cannot be scaled.
How are customer service and support?
Customer Service:
Very good.
Technical Support:Very good.
How was the initial setup?
Straightforward.
What about the implementation team?
In-house.
Which other solutions did I evaluate?
No, this was the first choice, based on internet reviews.
What other advice do I have?
Highly recommended the product, be sure to use the right backup application (Veeam or similar), so you can get the most out of it.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
System Engineer at a tech services company with 501-1,000 employees
We're sensitive to the amount of storage our backups take, so "datafication" is the most valuable feature for us.
Valuable Features
It's a solution that "datafies" backups so that only data is stored. Because we're sensitive to the amount of storage our backups take, "datafication" is the most valuable feature for us.
Improvements to My Organization
It saves storage space and the cost of investments in additional storage capacity. Data in other solutions is stored with other backup information. But with StoreOnce, only the data is stored, "datafying" the backup. This allows us to have a lot of backups within a small space, ultimately saving us money.
Room for Improvement
It needs to handle different kinds of media better. The system will fault sometimes when combining media with forms. It would be best if it could handle both at the same time.
Deployment Issues
StoreOnce deploys without any issues.
Stability Issues
We had a stability issue once because of development, but it's since been resolved.
Scalability Issues
We haven't had scalability issues. Again, we're able to store more data in a smaller space.
Customer Service and Technical Support
Technical support is responsive, but since we're installers, I expect it to be quicker.
Initial Setup
The initial setup is difficult for the normal user.
Other Advice
Think about your timelines, how you plan to use the load and read data, and how you will set up your system.
Disclosure: My company has a business relationship with this vendor other than being a customer: We're partners.
Buyer's Guide
HPE StoreOnce
May 2025

Learn what your peers think about HPE StoreOnce. Get advice and tips from experienced pros sharing their opinions. Updated: May 2025.
851,823 professionals have used our research since 2012.
Principal Systems & Storage Engineer at a tech company with 51-200 employees
Each application has its own virtual library to increase the deduplication ratio.
Valuable Features:
- It has very simple architecture compared to the old HP VLS
- It also provides ease of management and is easy to configure
Improvements to My Organization:
Each application has its own virtual library to increase the deduplication ratio.
Room for Improvement:
- Dedupe algorithms
- More control from HP data protector software
Use of Solution:
We've installed three StoreOnce appliances.
Deployment Issues:
Until now we did not have any problems with StoreOnce. However, have had a problem with the HP Data Protector. In order to import tapes from StoreOnce, we had to identify the ID of the items in each store on the appliances, and then create them manually on the HP Data Protector.
Other Advice:
I would advise you that if they have a remote site, (e.g. two StoreOnce appliances) to buy the Catalyst License for faster performance, since you will have a single engine of deduplication for both sites.
Disclosure: My company has a business relationship with this vendor other than being a customer: HP Partner

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Updated: May 2025
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Thanks for the review - I just found it. One point I'm sure you're aware of is that there is a large family of StoreOnce products that scale from 5TB to over a PB for backup. Hopefully your HP StoreOnce 2620 is the right size for your needs.
If you didn't hear about it, HP StoreOnce 6500 was named the backup product of the year by Storage Magazine/TechTarget. There is a blog post you can read on my blog: hpstorage.me
Thanks again for the review!