Are you sure the OVA file is a sparse one? AFAIR, thin provisioning means that the file size should sum up to already provisioned chunks of data.

In other words, if inside the virtual machine you use 4G and have a 4G file even though the maximum disk size is 30G you'd have a 4G file. But it wouldn't be a sparse file.

If it were a sparse file, the filesystem would report a file size of 30G but with only 4G of actual contents.


I hope I'm not making this overly confusing :-)


On 12.07.2019 09:56, levindecaro wrote:
Hi,

I'm using bareos 18.2, to backup bunch of ova files exported from RHEV, the ova file size is the actual used size of the image after export(thin image). However bareos still allocate the real size of image during backup or restore. The sparse=yes options seems cannot handle ova files.

Anyone has experience to workaround that?

Thank you!


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