> On 2022-06 -07, at 13:25, Sean Mooney <smooney at redhat.com> wrote: > > no there is noting else you need to configure but this option is not what you think it is. > the images_type option contols what storage will be used for all non cinder storage. > i.e. vms that are booted with out usign a boot volume. > > by default i belive we woudl use qcow or raw files on disk > with images_type=lvm we will instead create a lvm volume for the root disk but only if you do not use the boot form volume workflow. > > there is no way curretnly to prevent usign boot form volume on a specific host and force only local storage directly via config. > > you can do this indirectly but with sideffect. > > effectivly if you have a set of hosts that cant or should not have acess to cinder you can create a spereate avaiablity zone. > you would then set [cinder]/cross_az_attch=false. e.g. create local-only az and if the cinder backend is configured to be in a differnt az then > the cross_az_attach config will prevent the vm form booting in the local-only az. > https://docs.openstack.org/nova/latest/configuration/config.html#cinder.cross_az_attach <https://docs.openstack.org/nova/latest/configuration/config.html#cinder.cross_az_attach> > > > so your current config will make any non boot from volume nova instance use lvm storage to provision the vm root/swap/epmeral disks > but will not prevent end users requesting cinder data voluems or boot volumes via the cli/api. if the opt in to cinder stoage that > is what they will recive but if they use teh default storage provided by the flaovr then it will be local. thanks for the explanation - it is a shame that there is not a more direct way in config to force local storage - looks like https://blueprints.launchpad.net/nova/+spec/use-libvirt-storage-pools <https://blueprints.launchpad.net/nova/+spec/use-libvirt-storage-pools> has never got enough votes for implementation. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-discuss/attachments/20220608/d043d0d8/attachment-0001.htm> -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 2893 bytes Desc: not available URL: <http://lists.openstack.org/pipermail/openstack-discuss/attachments/20220608/d043d0d8/attachment-0001.bin>