Re: [rdo-list] Overprovisioning of local disk storage possible?

Hello people, After setting up an Ocata cloud and spinning up a few instances in it all of them using local storage I noticed I wasn't able to create more than a handfull of instances all thought the cloud had much more capacity. After some debugging I noticed the compute node reporting more disk space as used than actual disk space available, which caused an Exception in the nova api service: Compute: 2017-03-08 14:43:47.209 3386 INFO nova.compute.resource_tracker [req-1486e04b-7548-4b17-b095-b5b08768ba67 - - - - -] Final resource view: name=redacted_hostname phys_ram=12287MB used_ram=6656MB phys_disk=48GB used_disk=60GB total_vcpus=4 used_vcpus=3 pci_stats=[] The underlying issue (more disk space reported than available) seems to not be new, people already asked about it back in '14[1] which is why I didn't create a bugzilla but asking here. I assume this is caused by nova counting the virtual disk size of all instances on that host as 'used_disk'. This in turn means it is not possible to overprovision local storage. Is there a configuration setting or a workaround for this?