Greetings,
Is it possible with oVirt to import existing VMs where the underlying storage is on raw
iSCSI luns and to keep them on those luns?
The historical scenario is that we have Virtual farms in multiple sites managed by an
ancient Orchestration tool that does not support modern OS's as the hypervisor.
- In each site, there are clusters of hypervisors/Hosts that have visibility to the same
iSCSI luns.
- Each VM has it's own set of iscsi luns that are totally dedicated to that VM
- Each VM is using LVM to manage the disk
- Each Host has LVM filtering configured to NOT manage the VM's iscsi luns
- The VMs can be live migrated from any Hypervisor within the cluster to any other
Hypervisor in that same cluster
We are attempting to bring this existing environment into oVirt without replacing the
storage model.
Is there any documentation that will serve as a guide for this scenario?
In a lab environment, we have successfully
- Added 2 hypervisors (hosts) and oVirt can see their VMs as external-ovtest1 and
external-ovtest2
- Removed the LVM filtering on the hosts
- Created a storage domain that is able to see the iscsi luns, but we have not yet done
the 'add' of each lun
Is it possible to import these luns as raw block devices without LVM being layered on top
of them?
Is it required to actually import the luns into a storage domain, or can the VM's
still be imported if all luns are visible on all hosts in the cluster?
In the grand scheme of things, are we trying to do something that is not possible with
oVirt?
If it is possible, we would greatly appreciate tips, pointers, links to docs etc that will
help us migrate this environment to oVirt.
Thanks in Advance
- S