On 20 October 2015 at 06:30, Fabrizio Cuseo <[email protected]> wrote:
> Moving from rbd to qcow2 caused all the disks to loose the sparse mode. This has been a problem for ages, I've brought it up in the past. It makes for incredibly slow and inefficient disk transfers when moving VM's large disks , even if they have only small amounts of data. Every zero gets transferred. Backups seem to be affected as well. -- Lindsay
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