Configuring Veeam with HPE StoreOnce

So you are implementing Veeam and need a dedupe appliance for repository but not sure which one to select. I was in the same position an year back. There was an inclination from higher up for HPE StoreOnce. But there wasn’t enough data out there (or maybe I couldn’t find it) on the expected dedupe ratios with Veeam backup.

Finally after multiple back and forth with HPE and a written guarantee on a minimum expected dedupe ratio, we bought HPE StoreOnce 5100. Here is my experience.


  • 2 x 16Gb FC HBA’s
  • 4 x 10Gb Ethernet (2 x dual port card)
  • Capacity: 106TB

FC connection between StoreOnce and a bare metal Windows server with Veeam gateway role.

StoreOnce Setup

Assuming the initial configuration has been completed for StoreOnce, perform the following steps to create a StoreOnce catalyst as a Veeam repository.

HPE StoreOnce Catalyst deduplication is not global to the appliance but rather local to individual catalyst stores. This can have a significant impact how you design catalyst stores for use as repositories. 

  • Create a StoreOnce Catalyst client. The name needs to be named “Veeam“. Create a password. You will use this within Veeam to add the repository

Screen Shot 2017-06-10 at 08.50.06

  • Next go to Stores within Catalyst to create a store. You will add this as a repository within Veeam.

Screen Shot 2017-06-10 at 08.56.59

  • Next add the client you created in the first step to the store, enabling “Access

Screen Shot 2017-06-10 at 08.57.51

  • Next step would be to add this Catalyst store to Veeam, assuming all fabric zoning has already been configured to the gateway server.


Veeam Configuration

  • Add the gateway server to Veeam as a backup proxy.
  • Add new backup repository in Veeam.

Screen Shot 2017-06-10 at 09.06.06.png

  • Select Deduplicating storage appliance
  • Select HPE StoreOnce

Screen Shot 2017-06-10 at 09.08.36.png

  • Select checkbox Use Fibre Channel connectivity. This adds in COFC- to the server name. This is required if connecting through FC. Add in the FQDN of the StoreOnce after COFC- e.g.

Screen Shot 2017-06-10 at 09.10.12

  • In credentials, add the Veeam client that was created in StoreOnce earlier
  • In the Gateway Server, select the gateway server
  • If everything is configured correctly, select you will select the Catalyst store

Screen Shot 2017-06-10 at 09.36.24.png

  • For the concurrent tasks, this will depend on the number of connections between the gateway server and StoreOnce

Screen Shot 2017-06-10 at 09.42.34

  • Review the settings and finish the wizard. Congratulations you have just added in a StoreOnce Catalyst store to your Veeam



This is what we are seeing one year after implementation

General repository (predominantly Windows server backups) – 16:1

Microsoft Exchange backups – 23:1

File Services backup – 23:1

Hope this is helpful to someone.