Openstack installation (storage problem)
Hi,
I need advice about the installation of OpenStack. I have a few machines that have a few large HDD and a lot of memory. I want to set up Openstack on it, but I want to use HDD to create one large storage and use existing bare metals to provide VM. I understand that it's possible, but I'm wondering what is the best practice in this case? I couldn't find anywhere what file system should I use: CEPH, glusterfs or something else?
Best regards
According to the survey (select Deployment Decisions), Ceph is the most popular storage solution in the OpenStack world. You need several drives per server. Note that Ceph is not a filesystem, but more something like a hugely scalable disk array.
GlusterFS is a massively sized, distributed filesystem. At some point, its OpenStack support was removed; I don't know what its status is.
Check https://docs.openstack.org/cinder/lat... for other block storage solutions.
What do you mean by "use existing bare metals to provide VM"?
I want to use the same machine for CEPH and VMs. I think about disadvantages for that solution...
Probably not ideal. Ceph does require some CPU and memory, which would interfere with the VMs. For a production system, I would absolutely recommend against it. Otherwise, I would at least do the utmost to separate the Ceph and VM filesystems from each other.