While ovirt can do what you would like it to do concerning a single user interface, but with what you listed, you're probably better off with just plain KVM/qemu and using virt-manager for the interface.
Those memory/cpu requirements you listed are really tiny and I wouldn't recommend even trying ovirt on such challenged systems. I would specify at least 3 hosts for a gluster hyperconverged system, and a spare available that can take over if one of the hosts dies. I think a hosted engine installation VM wants 16GB RAM configured though I've built older versions with 8GB RAM. For modern VMs CentOS8 x86_64 recommends at least 2GB for a host. CentOS7 was OK with 1, CentOS6 maybe 512K. The tendency is always increasing with updated OS versions. My minimum ovirt systems were mostly 48GB 16core, but most are now 128GB 24core or more. ovirt node ng is a prepackaged installer for an oVirt hypervisor/gluster host, with its cockpit interface you can create and install the hosted-engine VM for the user and admin web interface. Its very good on enterprise server hardware with lots of RAM,CPU, and DISKS. On Sun, Jun 21, 2020 at 4:34 PM David White via Users <users@ovirt.org> wrote: > I'm reading through all of the documentation at > https://ovirt.org/documentation/, and am a bit overwhelmed with all of > the different options for installing oVirt. > > My particular use case is that I'm looking for a way to manage VMs on > multiple physical servers from 1 interface, and be able to deploy new VMs > (or delete VMs) as necessary. Ideally, it would be great if I could move a > VM from 1 host to a different host as well, particularly in the event that > 1 host becomes degraded (bad HDD, bad processor, etc...) > > I'm trying to figure out what the difference is between an oVirt Node and > the oVirt Engine, and how the engine differs from the Manager. > > I get the feeling that `Engine` = `Manager`. Same thing. I further think I > understand the Engine to be essentially synonymous with a vCenter VM for > ESXi hosts. Is this correct? > > If so, then what's the difference between the `self-hosted` vs the > `stand-alone` engines? > > oVirt Engine requirements look to be a minimum of 4GB RAM and 2CPUs. > oVirt Nodes, on the other hand, require only 2GB RAM. > Is this a requirement just for the physical host, or is that how much RAM > that each oVirt node process requires? In other words, if I have a physical > host with 12GB of physical RAM, will I only be able to allocate 10GB of > that to guest VMs? How much of that should I dedicated to the oVirt node > processes? > > Can you install the oVirt Engine as a VM onto an existing oVirt Node? And > then connect that same node to the Engine, once the Engine is installed? > > Reading through the documentation, it also sounds like oVirt Engine and > oVirt Node require different versions of RHEL or CentOS. > I read that the Engine for oVirt 4.4.0 requires RHEL (or CentOS) 8.2, > whereas each Node requires 7.x (although I'll plan to just use the oVirt > Node ISO). > > I'm also wondering about storage. > I don't really like the idea of using local storage, but a single NFS > server would also be a single point of failure, and Gluster would be too > expensive to deploy, so at this point, I'm leaning towards using local > storage. > > Any advice or clarity would be greatly appreciated. > > Thanks, > David > > > Sent with ProtonMail <https://protonmail.com> Secure Email. > > _______________________________________________ > Users mailing list -- users@ovirt.org > To unsubscribe send an email to users-le...@ovirt.org > Privacy Statement: https://www.ovirt.org/privacy-policy.html > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: > https://lists.ovirt.org/archives/list/users@ovirt.org/message/RGHCN356DXJEDR5FJ7SXSBHBF5FYRWIN/ >
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