The most valuable is the deduplication ability, but file sharing is also really good.
Director, IT and Operations at a financial services firm with 501-1,000 employees
The most valuable feature is the deduplication ability, but file sharing is also really good.
What is most valuable?
How has it helped my organization?
We saw less capital outlay after implementing the solution.
What needs improvement?
For subsequent models, I would like HP to improve deduplication rations for tiny files numbering near a trillion, which they do in our business. StoreOnce doesn’t work for our class of data, which is small, and needs to include more genomic and medical research as test cases.
For how long have I used the solution?
I have been using StoreOnce D2D for four years.
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.
What do I think about the stability of the solution?
Stability was good but undersized for what we needed. We weren't able to de-duplicate what we needed.
What do I think about the scalability of the solution?
It was not able to scale for us; we had to buy another solution (X9000) to store copies.
How are customer service and support?
I found HP to be helpful, but they asked too many questions and were not really able to help our business.
Which solution did I use previously and why did I switch?
We were in need of backing up petabytes of data for medical databases.
How was the initial setup?
We had experience with the solution, so it was relatively simple.
Which other solutions did I evaluate?
- EMC
- Comvault
What other advice do I have?
The most important criteria for us is reliability.
If you work for a medical research institute or something with very small files, then this solution may not be for you. Your best move is to do a POC.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Technical Operations Specialist - Server at a pharma/biotech company with 1,001-5,000 employees
We are able to reduce the amount of backup tapes we need.
What is most valuable?
- Faster backup and restore process
- Data de-duplication mechanism
How has it helped my organization?
With D2D2T appliance, and backup jobs reconfiguration we are reducing the backup tapes count. The appliance offers a fast backup and restore process, and a data replication mechanism to a remote site location. This ensure data center backups disaster recovery.
What needs improvement?
- Data capacity graphical interface
For how long have I used the solution?
I've used it for three years.
What was my experience with deployment of the solution?
No issues during the deployment.
What do I think about the stability of the solution?
No issues encountered.
What do I think about the scalability of the solution?
No issues encountered.
How are customer service and technical support?
Customer Service:
10/10.
Technical Support:10/10.
Which solution did I use previously and why did I switch?
This is the first solution we have implemented.
How was the initial setup?
It was straightforward, because we had chosen the right template for our needs and all the connectivity was prepared before the device was on site.
What about the implementation team?
It was implemented through the local HP support team. They provided us with excellent support and knowledge of the product technology.
What other advice do I have?
Always follow the vendors best practice and guidance to avoid any problems.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Thank you for the review - I always appreciate it. Which StoreOnce are you using? If you've been using it for 3 years, I'm guessing the portfolio updates have replaced what you have now. For those that don't know the portfolio well, here's a blog post with a good overview. Be sure to watch the videos too: hpstorage.me
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.
Systems Analyst at a financial services firm with 1,001-5,000 employees
It's very stable. It gives us full-system backups, meaning we need less storage capacity.
Valuable Features
StoreOnce gives us full-system backups, meaning we need less storage capacity. This is very important to us because less storage capacity means we buy less hardware and have less overall costs.
Improvements to My Organization
Not only do we need less storage capacity, but it also performs backups a lot quicker. We save money this way as well because it saves us time which can be better spent elsewhere.
Room for Improvement
Although we're very happy with it right now, the encryption could be better. Security of our backups, of course, is very important.
Deployment Issues
We have no issues with deployment.
Stability Issues
It's very stable. We've only had one small problem since the implementation.
Scalability Issues
We're not using anywhere close to what we have. We've designed it to allow for our five-year growth. We're not there yet.
Customer Service and Technical Support
We try to avoid technical support because it's "entertaining", though I'd use different words to describe it.
Initial Setup
The initial setup was straightforward.
Implementation Team
HP implemented the solution, but it's fine if you go at it on your own. The thing is, if you run into problems, then you have to deal with HP support, which is something I wouldn't advise anyone to do.
We are a BAU house, so our focus is on keeping the business running. We don't have the skill set of an American architect who scoped out the project. We've partnered with an HP partner who does have the skill set once we purchased StoreOnce.
Other Advice
Make sure you run a proper POC. It's a pretty straightforward solution so long as it's configured right from the start.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
IT Technical Architect at a university with 501-1,000 employees
It has given us the ability to run data straight from the device in case of a disaster.
What is most valuable?
StoreOnce has the following advantages:
- Fast backup
- No need to manage and store tapes
- Ability to run data straight from the device in case of a disaster
- Reliable compared to weekly problems with tapes
- The data is replicated to two remote locations
How has it helped my organization?
We have moved away from tape backup.
For how long have I used the solution?
I've used it for one year.
What do I think about the stability of the solution?
We had one problem when data replication got stuck and we had to ask HP for help.
What do I think about the scalability of the solution?
No issues encountered.
How are customer service and technical support?
Customer Service:
It's very good.
Technical Support:It's very good.
Which solution did I use previously and why did I switch?
We only used a tape solution. We switched because tapes are too slow, prone to mechanical problems, tape management is a burden, and the time taken to do a restore is slow.
How was the initial setup?
It was easy. Also I did HPs StoreOnce training.
What about the implementation team?
HP installed the device for us, and showed us various configuration options. The team was very knowledgeable.
What's my experience with pricing, setup cost, and licensing?
The initial cost was high, however, day to day costs are low.
Which other solutions did I evaluate?
I could not find a better product.
What other advice do I have?
It is worth buying HP installation. It is difficult to estimate how much storage is needed as de-duplication depends on the type of data, so reserve extra money for expansions, and buy a model which can be expanded. Also, the StoreOnce course is very good.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Thanks for the review - StoreOnce is a hidden gem in the HP Storage portfolio? For those that don't know the portfolio well, here's a blog post with a good overview. Be sure to watch the videos too: hpstorage.me
Presales System Engineer at a tech services company with 201-500 employees
An excellent deduplication solution with a user-friendly interface and a straightforward setup
Pros and Cons
- "The interface is very user-friendly."
- "The solution's pricing could be improved."
What is our primary use case?
We primarily use the solution for deduplication and replication. We occasionally also use it for disaster recovery.
What is most valuable?
The catalyst capabilities of the solution is the most valuable feature. Its capability is the best on the market. We tell our customers specifically about this feature.
The interface is very user-friendly.
What needs improvement?
The solution's pricing could be improved.
For how long have I used the solution?
I've been using the solution for four years.
What do I think about the stability of the solution?
The solution is quite stable.
How are customer service and technical support?
Technical support has been great. They are the best in the market. They're very responsive.
How was the initial setup?
The initial setup was not complex. It was very, very easy. Deployment takes less than an hour. You just need one qualified person to handle it.
What other advice do I have?
We are using the hybrid cloud deployment model. We use the Azure platform.
I would recommend the solution. They have a very good reputation. I would rate it eight out of ten.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Network admin/security at a government with 1,001-5,000 employees
It provides quick recovery to the organization, but the software is sometimes unstable.
Pros and Cons
- "Quick recovery."
- "Agnostic backups."
What is most valuable?
Agnostic backups.
How has it helped my organization?
Quick recovery.
What needs improvement?
StoreOnce software is sometimes unstable.
For how long have I used the solution?
10 years.
What do I think about the stability of the solution?
Sometimes unstable.
What do I think about the scalability of the solution?
No.
How is customer service and technical support?
At times not good, other times good.
How was the initial setup?
Complex.
What other advice do I have?
Do a detailed inside PoC.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Enterprise IT Infrastructure - Team Leader at a tech services company with 501-1,000 employees
We switched to HP because we needed a VTL solution with deduplication.
What is most valuable?
VTL with deduplication because with deduplication, you can have spare storage space.
What needs improvement?
Interoperability with other vendors backup software.
For how long have I used the solution?
I've used it for two and a half years.
What was my experience with deployment of the solution?
In the beginning, we had a lot of problems with bad firmware.
What do I think about the stability of the solution?
We had problems with the various firmware versions.
What do I think about the scalability of the solution?
No issues scaling the product.
How are customer service and technical support?
Customer Service:
It is very high.
Technical Support:Customer service is very high.
Which solution did I use previously and why did I switch?
We did, and we switched because we needed a VTL solution with deduplication.
How was the initial setup?
It was simple, especially to integrate it with our existing EMC network solution.
What about the implementation team?
We implemented it in-house.
Which other solutions did I evaluate?
We also looked at EMC DataDomain. We chose StoreOnce because it was cheaper by more than 60,000 Euros.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Wow - that was a huge difference in price compared to EMC Data Domain. StoreOnce is a hidden gem in the HP Storage portfolio? For those that don't know the portfolio well, here's a blog post with a good overview. Be sure to watch the videos too: hpstorage.me
Sr. Sys. Server & Storage Egineer / Tech .Consultant at a tech services company with 51-200 employees
A robust solution that is easy to set up and configure
Pros and Cons
- "The implementation is straightforward."
- "The solution would be improved if it could also be used as a data store for VMware."
What is our primary use case?
We are a partner and reseller for HP products, and we integrate various solutions for our customers. One of the areas that I work with is implementing storage solutions, and this is one of the products that my customers use.
This solution is used to emulate data relief for an MSL4048 and is deployed on-premises.
What needs improvement?
The solution would be improved if it could also be used as a data store for VMware. Not only as a backup repository but as an archiving data store for VMware.
For how long have I used the solution?
I have approximately six years of experience with this solution.
What do I think about the stability of the solution?
We have implemented this solution for a number of customers, and they are happy with the stability.
What do I think about the scalability of the solution?
There are several models of this device, and we have supplied our customers based on their requirements. Up to this point, they are still using the same models and we have not had to assist anyone with scaling this solution.
How are customer service and technical support?
As far as HPE support is concerned, I don't have any issues with them. For the most part, I am coordinating with them. We normally handle the support for our customers or contact HPE support on their behalf.
How was the initial setup?
The initial setup of this solution is quite easy for me. The implementation is straightforward.
The setup and configuration will only take about half a day, but the testing will take a little more time. You have to monitor the performance of the disk and the emulated data. In total, it will take perhaps two days to complete everything, including a backup and restore.
What other advice do I have?
For anybody looking for a robust backup solution that emulates a tape library, this is the product that they should go for. The only thing is that they cannot remove the data because it is appliance-based. They cannot, for example, manually remove the tape and bring it to another location. They would need to use replication for this.
This product is not perfect, but I am quite satisfied with it.
I would rate this solution a nine out of ten.
Disclosure: My company has a business relationship with this vendor other than being a customer: Reseller.

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Updated: May 2025
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I always appreciate folks taking time to leave a review - thank you!
It sounds like you have an older StoreOnce unit. The latest StoreOnce 6500 can start at 120TB and grow to over 2.2PB (raw capacity before any deduplication). Here's a blog post that gives a good overview of the StoreOnce portfolio: hpstorage.me