vSphere 5.5/6.0 VM Backup fails with "Exception of type 'Veeam.Backup.AgentProvider.AgentClosedException' was thrown"
| KB ID: | 2903 |
| Product: | Veeam Backup & Replication 9.5 |
| Published: | 2019-02-28 |
| Last Modified: | 2021-07-22 |
Challenge
When backing up a VM within an environment running vSphere 5.5 or vSphere 6.0 the job fails with:
Exception of type 'Veeam.Backup.AgentProvider.AgentClosedException' was thrownVersion Requirement
The error listed above has many causes. Directly interpreted, it means that a process has terminated unexpectedly.
This article is explicitly related to when this error occurs during a job processing a VM located on an ESXi 5.0 or ESXi 6.0 host with Veeam Backup & Replication 9.5 U4
Cause
This failure is related to a known issue affecting VMware Virtual Disk Development Kit (VDDK) 6.0.
VDDK 6.0 is used by Veeam Backup & Replication to access VMs running in Vsphere 5.5 and 6.0.
Solution
Disable IPv6 on all network interfaces of the Veeam Backup Proxies.
| KB ID: | 2903 |
| Product: | Veeam Backup & Replication 9.5 |
| Published: | 2019-02-28 |
| Last Modified: | 2021-07-22 |
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