- Veeam Support Knowledge Base
- vSphere 5.5/6.0 VM Backup fails with "Exception of type 'Veeam.Backup.AgentProvider.AgentClosedException' was thrown"
vSphere 5.5/6.0 VM Backup fails with "Exception of type 'Veeam.Backup.AgentProvider.AgentClosedException' was thrown"
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Challenge
Exception of type 'Veeam.Backup.AgentProvider.AgentClosedException' was thrownThe 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
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