Aaron Metzger wrote:
virt-install has a checkbox which suggests that you can avoid
preallocating the entire guest image size -- that the guest image file
will grow on demand.
Does this work for Xen or is it only supported for KVM and the QEMU
COW files?
yes, this works fine on xen.
My experience when creating Xen guests as regular files is that I end
up with a file that is the full size even when I pick the option to
not preallocate the entire image.
Basically it if you don't pre-allocate the entire image, virt-manager
creates a sparse file to store the guest data which only occupies disk
blocks while you write contents to that sparse file . When checking the
size of the pre-allocated and sparse images, you should use "du", not
"ls -lh".
--Sadique
--
Thanks,
Aaron
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