Flavio Vinicius wrote: > Currently I am using VirtualBox and I have my guest operating system > installed on a dynamical VDI file. When inside the guest the disk usage > shows about 650mb, but the VDI file is close to 2GB (The image can expand up > to 100GB). I no expert on virtualization and have only used virtualization > products, such as virtual box, but this difference in sizes seems rather > odd. Can anyone give me an insight on why this happens?
Hello Flavio, Yes, this is because when the guest writes to the disk and then frees that space, VirtualBox has no way of knowing that it has been freed, so it does not remove it from the file. The only space that VirtualBox really knows is free on the disk is space that has never been written to (or if I recall correctly blocks filled with zeros). Regards, Michael -- innotek GmbH (http://www.innotek.de/) Phone +49 7151 60405-0 (Fax: -111) _______________________________________________ vbox-users mailing list [email protected] http://vbox.innotek.de/mailman/listinfo/vbox-users
