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VMware vCenter Converter Standalone fails to migrate

I setup a new VMware ESXi 4.1 Update 1 server and tried to migrate several virtual Windows 2008 server from an ESXi 3.5 server. But they all failed with the message "FAILED: An error occured during the conversion.", sometimes 1 minute into the migration, sometimes up to 37%.

Before migrating, all the configuration parameters seems correct, no warning or errors.

I am using vCenter Converter Standalone v 4.3 , and I have tried setting the target to both v4 and v7 of the appliance.

Any suggestions?

3 Solutions
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I'll post this link for reference if you've not seen it yet.

For the conversion steps, read Bestway's article article.


Can you upload the converter logs?

See here to as to where they are location

A possible suggestion to get around it would be to use something like Veeam FastSCP or WinSCP to simply copy the virtual machine files from 3.5 to 4.1 U1 - nothing has changed about the format of the files.
Concur with 'bgoering'; may be simply easier to do a VM copy, unless you're needing minimal downtime? If you're able to do a copy...once the VMs are copied over, it's simply a matter of rt-clicking on the .vmx file of each VM and adding them to inventory. Once added, you'll need to upgrade the VMware Tools and VM hardware.

If you still wanna try Converter, see if these VMware KBs:

sidartraAuthor Commented:

I tried the steps. I could not get WinSCP to work (ftp, Sftp, Scp) . I am not sure if it is a VMWare server issue (unlikely since the install is so straightforward).

Anyway I am abandoning the approach and re-housing the servers on existing VMware server.

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