Article ID: 7083, created on Dec 30, 2009, last review on Jun 17, 2016

  • Applies to:
  • Virtuozzo containers for Windows


The v2v migration of containers between Parallels Virtuozzo Containers 4.x servers failed in Parallels Business Automation - Standard (PBA-S) with the following error:

VZAgent operation error: V2V migration failed : Connection to remote host cannot be open or is closed


VZAgent service of source node cannot reach destination node.


To migrate containers between Parallels Containers 4.x (PVC) nodes using PBA-S the following requirements should be met:

  1. Service Containers (SCT) are to be created in compatibility mode. The next command recreates SCT in compatibility mode:

    vzsveinstall -c -w -f

    Refer to "Service Container reinstallation" article for more information about the procedure.

  2. Nodes have to be registered in PBA-S by means of IP addresses of PVC servers;

  3. Necessary ports must be open on both servers and inside SCT. Refer to "Which ports should be opened on Virtuozzo hardware node and Service VE?" article for more details about firewall configuration.


Parallels Virtuozzo Containers for Windows 4.5 or below is EOLed version. Consider upgrading PVC to supported versions according to the instructions from this KB:

Planning upgrade from Parallels Virtuozzo Containers for Windows 4.0 and 4.5 to 4.6

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