The right way is simply to edit the hosted engine VM memory settings from the admin UI.
The file is not meant to be edited and may lead to issues in your setup.

On Sat, Sep 24, 2016 at 7:57 PM, <aleksey.maksimov@it-kb.ru> wrote:
My HE VM stored on FC Storage

24.09.2016, 19:51, "Logan Kuhn" <logank@wolfram.com>:
> Sorry hit send too quickly.
>
> Move the shared storage version out of the way if you can. In my instance it was just an NFS volume so it wasn't too hard to move it.
>
> Regards,
> Logan
>
> ----- On Sep 24, 2016, at 11:50 AM, Logan Kuhn logank@wolfram.com wrote:
>
> | I believe you can do it by editing this file:
> | /var/run/ovirt-hosted-engine-ha/vm.conf and then restarting the vm
> |
> | Regards,
> | Logan
> |
> | ----- On Sep 24, 2016, at 10:13 AM, aleksey maksimov aleksey.maksimov@it-kb.ru
> | wrote:
> |
> || Hello oVirt guru`s !
> ||
> || How can I to add RAM to Hosted Engine VM?
> || Solution from "Fix: The recovery flow is:..." in
> || https://bugzilla.redhat.com/show_bug.cgi?id=1309572 not working.
> ||
> || oVirt Engine Version: 4.0.3-1.el7.centos
> || _______________________________________________
> || Users mailing list
> || Users@ovirt.org
> | | http://lists.ovirt.org/mailman/listinfo/users
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