Hello all,
I know libvirt has the following two commands:
vol-wipe
vol-delete
Can someone please explain to me how these function? Do these only remove
previous session data so that a new virtual instance cannot see it or does
it remove it at the physical level level too so that the data cannot be
found anywhere on the physical drive? I know Eucalyptus and KVM use sparse
files upon instance creation and the instance thinks the ephemeral space is
all zeroes even though it is just sparse. I appreciate any insight in how
the two virsh commands work and if they use zeroes, sparse, or some other
method.
Thanks,
Shawn