[ovirt-users] Posix FS as alternative to local storage?

[Tony Brian Albers]

On 30/04/18 11:43, Eduardo Mayoral wrote:
> Hi,
> 
>      I would like to set up a new oVirt deployment with hosts that have
> the VMs running on local attached storage. I understand this has the
> requirement of having each host in its own cluster (and own datacenter,
> it seems, I understand the need for the dedicated cluster, not so much
> for the dedicated datacenter).
> 
>      At the same time, I would like to have some shared storage domains
> so I can use it to export VMs or migrate them around hosts (probably in
> three stages, first migrate VM storage from local to the shared storage
> domain, second migrate the host (probably not possible to do a "hot"
> migration, but at least "cold"), third migrate the VM storage from the
> shared storage domain to the local storage domain of the new host).
> 
>      So I thought maybe I can deploy a datacenter in shared storage mode,
> with one cluster per host. Use one or two shared storage domains for
> master and as an stage area for planned VM migrations as explained
> before, and then configure several storage domains, one per host, as
> posix FS . I would then deploy the VMs on the local posix FS storage
> domains and set affinity rules for the VMs to their hosts as needed.
> 
>      Would this work? Is there a better way of achieving local storage
> and retaining the ability to share storage among hosts and migrate VMs?
> 
> 

Have you thought about using glusterfs? If hosts are physically close, 
that would probably be the best solution.

-- 
Tony Albers
Systems administrator, IT-development
Royal Danish Library, Victor Albecks Vej 1, 8000 Aarhus C, Denmark.
Tel: +45 2566 2383 / +45 8946 2316