hi fabian
we are having issue where a snapshot for a 2 disk vm qcow2 ( 1TB 2TB ) total of 3 with 32gb ram , vm as 10gb ram in use, but the progress is crossing the 10gb usage,
on a host with Shared GFS2 file system and 128gb ram (75% free) take for ever.
so far writing this msg i always killed...