On Sun, Jun 15, 2025 at 07:45:55AM +0200, Maurizio Caloro wrote: > Hello > > Please, do you also have experience with Qcow2 files?` > > > > now that I have about 15-20 qcow2 files, they are becoming more and more > susceptible to an unclean start. How does that "unclean start" looks like? > I have to stop and restart them again and again. Do you also have such > experiences and is it possible to "Stopping and restarting" means stopping and restarting the VM running on that image? > 'defragment' these files again, even if this would not be necessary with SSD > discs ? I don't know what you mean by 'defragment'. Qcow2 is known for accumulating unused space over time, but that would just make it more bloated (and possibly somewhat slower?). But it won't prevent it from working properly. And this has probably *nothing* to do with your storage hardware (i.e. SSD or not). > When the qcow2 file is recreated, it runs correctly again for a while, but > then it starts having problems drop by drop You will have to give us more details for anyone to have a chance to help you find the problem. When it fails: how do you know it failed? Do you have error messages? Log files? etc. Cheers -- tomás
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