Ticket #4189 (new enhancement)

Opened 10 years ago

Need ot be able to chunk large VMDK files when exporting an appliance

Reported by: dgoldssfo Owned by:
Component: other Version: VirtualBox 2.2.4
Keywords: Cc:
Guest type: Solaris Host type: Linux


We need an easy way to split up the files that comprise a virtual appliance so that they are easily distributed to our end users on media like DVDs and CDs. My preference would be a check box in the Export Appliance dialog box with an option like "Split large files into 2 GB chunks." Import Appliance should be smart enough to recognize that is importing a chunked vmdk and rebuild it as part of the import. (If that is too difficult to do, it would be acceptable if the user had to select an option in the Import Appliance dialog to tell VirtualBox to rejoin the vmdk.)

In the current release of VirtualBox, this exercise is left to the users. Sure, I can take a virtual appliance and split it up using my native OS utilities or an installer product of some sort, and then provide instructions for the end user to rebuild the file but there are some major disadvantages to doing things this way:

  • The user requires extra disk space - some space for the split up file, and then some space for the rebuilt file
  • It is an acceptance barrier to the end user to have to perform an additional step beyond File / Import Appliance to import an appliance
  • Every developer who wants to redistribute virtual appliances on DVDs has to come up with their own methods of chunking, which likely vary depending on the operating system on which the appliance will be deployed.

Therefore, while the omission of any chunking capability might meet the OVF standard, it provides difficulties for those of us who want to send out virtual appliances using any medium other than file downloads.

Please consider this RFE. The lack of a chunking feature is causing some developers to have to do a lot of extra work. Please note that redistribution of VMware virtual machines on DVDs is trivial because that product support 2 GB chunks for their vmdk files.

Thanks and regards,


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