Re: [ovirt-users] 3.6 : Moving the hosted-engine to another storage
Unfortunately we know that migrating from HE to HE is not as simple
as
from physical to HE:
https://bugzilla.redhat.com/show_bug.cgi?id=1240466#c21
In general the issue is that the DB backup form the old hosted-engine
VM contains a lot of references to the previous hosted-engine env and
you cannot simply remove/edit them from the engine since they are lock
so you have to manually remove them from the DB which is quite
risky/error prone.
This is a bit scaring. In case of issue with engine and trying to recover, it could also
happen.
What other way would you suggest for backing the engine VM and being sure to be able to
restore it as it was without errors ? Have you ever tried to backup/restore from rsync ?
If there are data in the DB written when you're performing it, do you think it can
cause issues ? If ovirt-engine service is stopped, is that problem avoided ?
In the mean time I'd suggest, if feasible, to redeploy a new
hosted-engine env and reattach there your storage domains and your
hosts.
This will imply a downtime.
Ok, I think I'll do that. A downtime isn't a problem right now, as I'm still
at a pre-production step. (preparing it for production soon)