[libvirt-users] vol-wipe and delete

[Shawn Davis]

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

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