[Qemu-devel] Security for QCOW2 format

[Halsey Pian]

Dear All,

 

Nice to know all of you!

 

Recently, I am reading codes of qcow2 format, in order to switch virtualization solution in my project from VMWare to KVM for more specific customization based on customer’s requirements.

 

I have one consideration related to qcow2 format in QEMU.

As you know, there is all-in-one img file for QCOW2 format even if there is much original data and a number of snapshots, then maybe we would get a huge file, and maybe we cannot use this img if it is broken due to some reason/exception during long term running especially for server application. Is there a solution for this? Or is there a strategy similar to VMWare VMDK format using the structure with parent pointer to manage separate sub vmdk files?

 

Could you give help on it? Many thanks!

 

Best Regards

Halsey Pian