Veeam Proxmox VE Worker VM: Cannot access a closed Stream

When integrating a Proxmox VE server into Veeam, there is currently a requirement that local storage must be activated. This requirement also applies if a storage other than snapshot storage has been selected.

Initial situation

- Veeam backup and replication console: 12.3 / Beta version 13.0

- Proxmox VE 8.4

- hint: The named versions refer to our test environment and may vary for your system.

Error pattern

When creating a Worker VM and Proxmox VE, the following error message may be displayed:

• 
  "Failed to deploy the worker VM: Cannot access a closed Stream."

Troubleshooting

The reason for this problem is that the local storage is not activated under Proxmox VE. To solve the problem, connect to the WebUI of the Proxmox VE node / cluster.

There, go to "Datacenter " and "Storage".

• 
  Choose "Local" storage and set the check mark at "Enabled".

You can then test the Worker VM again and it should now run successfully.

Author: Niklas Pauli Niklas Pauli works in the product management team at Thomas-Krenn. He completed his general university entrance qualification at Freyung High School and then his training as an IT specialist for system integration at Thomas-Krenn.AG. After completing his training, he continued to work in the areas of Proxmox VE incl. Ceph, backup (Proxmox, Veeam, SEP). He is also a regular writer for the Thomas-Krenn-Wiki.