Re: debops and openstack
On lip 21, Damiano Venturin wrote:
On 21/07/2020 17:17, Maciej Delmanowski wrote:
> Very nice breakdown of the various virtualization models. The SAN/NAS storage
> can definitely be something else like Synology or NetApp devices which you can
> connect to your hypervisor infrastructure using NFS, iSCSI or similar
> technologies. On the other side, your hypervisors can then be thin blade
> servers with only so much storage to start the hypervisor OS - after all
> virtual machine storage is hosted elsewhere. There's where the compute/storage
> split comes from.
I thought of something more exotic but turns out it's just splitting
responsabilities among machines specialized for a specific task. Correct?
Yes. On the lowest level we are operating on distinct hosts, either physical
machines or virtual machines. Splitting complex systems like virtualization
platforms into OS packages that are installed on the dedicated hosts makes the
most sense logistically. All of the major players do this - OpenStack,
Kubernetes, etc. Only when you go a level higher with containers, this split
stops being relevant and you can operate on container images instead.
-- Maciej