Hello,

welcome to ovirt, I hope you'll have a wonderful experience :)

Since you mentioned having (one) server I suppose you're deploying a self-hosted ovirt engine. I haven't tried deploying everything on one node but I believe this should be possible although not recommended, certainly not for a production environment. The minimum is two nodes for a self-hosted engine [1].

Similar to storage, according to documentation [1] it is possible to use local storage when it's configured as a service accessible to all hosts. I suppose having for example NFS on one of the nodes (using local storage) and creating NFS storage domain on top would be sufficient. Shared storage is required because it stores data associated with VMs, which can migrate to different hosts. Also consider storage space requirements [2]: host ~55G, engine ~5G, +your storage domain on the same node.

Additionally it is also recommended to create more than one storage domain to be able to recover if the storage domain gets corrupted. If only one storage domain is configured, the recovery is not possible [3].

Hope this helps a bit, I'm kind of new to ovirt too so I expect better hints to land here as well :) Have a great day!


-Roman


[1] https://www.ovirt.org/documentation/installing_ovirt_as_a_self-hosted_engine_using_the_command_line/#Self-hosted_Engine_Architecture_SHE_cli_deploy
[2] https://www.ovirt.org/documentation/installing_ovirt_as_a_self-hosted_engine_using_the_command_line/#Storage_Requirements_SHE_cli_deploy
[3] https://www.ovirt.org/documentation/installing_ovirt_as_a_self-hosted_engine_using_the_command_line/#Preparing_Storage_for_RHV_SHE_cli_deploy