On 14/06/11 13:02, Richard W.M. Jones wrote: > qcow2 uses a two-level directory. The second level is not allocated > until required unless you selected the "preallocation" option when > creating the disk. So if you didn't use "-o preallocation" then yes > this overhead can grow as more disk blocks get allocated. By the way, > we found that preallocation is faster. > > Mark wrote extensive documentation on qcow2 here: > > http://people.gnome.org/~markmc/qcow-image-format.html
that's very helpful, thanks -- Paul Mansfield GPG Fingerprint: FBBE 60D4 27FD 4D16 9ABA A20A 8924 E20E 6C03 EAA2 _______________________________________________ virt-tools-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/virt-tools-list
