On Wed, Nov 14, 2018 at 4:39 PM Jacob Green <jgreen@aasteel.com> wrote:
>
>      I just have a few simple questions, have you migrated a fiber
> channel storage domain from one ovirt environment to another? And how
> did it go, did it just work aside from having to import all the vms and
> configure their settings was it any more difficult than that?
>
> We want to migrate our fiber channel storage with VM's intact from an
> oVirt 4.1 environment to a brand new oVirt 4.2 environment.

Hello Jacob,

we just did in our production environment using EMC VNX and EMC VPLEX
as storage backends. We simply zoned the new servers' hba with the
storage and on storage side we gave access to the same luns as the
older setup.

Once done this we stopped all the vms on source side (4.1), detached
the storage domain and imported on the new one (4.2). Then, imported
all the vms.

Please note that you MUST detach from source BEFORE attaching on
destination or you'll break everything.

Nothing special required. The only simplification is using the same
network names on both sides, so is easier to import.

We didn't automate anything, but you can do it for sure with ansible.

Luca
--
"E' assurdo impiegare gli uomini di intelligenza eccellente per fare
calcoli che potrebbero essere affidati a chiunque se si usassero delle
macchine"
Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716)

"Internet è la più grande biblioteca del mondo.
Ma il problema è che i libri sono tutti sparsi sul pavimento"
John Allen Paulos, Matematico (1945-vivente)

Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , <lorenzetto.luca@gmail.com>
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