From jflorian at doubledog.org Thu Oct 29 09:44:27 2015 Content-Type: multipart/mixed; boundary="===============8134561432140794895==" MIME-Version: 1.0 From: John Florian To: users at ovirt.org Subject: Re: [ovirt-users] Moving a Hosted Engine from Fedora 20 to CentOS 7 Date: Thu, 29 Oct 2015 09:44:21 -0400 Message-ID: <563222B5.80006@doubledog.org> In-Reply-To: CAC_JqcmkCAy91h8z_X1YA5eneyEQSRjqAJ4DU_FbBVxhV09Tig@mail.gmail.com --===============8134561432140794895== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable This is a multi-part message in MIME format. --------------050301070802050405070805 Content-Type: text/plain; charset=3Dwindows-1252 Content-Transfer-Encoding: 7bit On 10/29/2015 05:49 AM, Roy Golan wrote: > > > On Thu, Oct 29, 2015 at 11:39 AM, Roy Golan > wrote: > > > > On Wed, Oct 28, 2015 at 10:23 PM, John Florian > > wrote: > > Can somebody please point me to documentation or describe how > I should > proceed with this task? I see lots of pages for moving from a > physical > engine to a VM and vice-versa but am having no luck finding > how to go > about building a new HE to obsolete my original. > > > using ovirt-hosted-engine-setup you can choose a setup without > using the appliance. So you can scratch install your VM > > > > BTW the ovirt-engine-appliacnce we build [1] is Centos based. Seems > like perfect candidate. > > #install the appliance > yum install ovirt-engine-appliance > > #and then run the setup > ovirt-hosted-engine-setup > > choose "disk" in this stage > Please specify the device to boot the VM from (cdrom, disk, pxe) [cdrom]:= disk > > it will suggest the downloaded appliance automatically > See this wiki for reference > http://www.ovirt.org/Features/HEApplianceFlow#Testing > Neat! I was unaware of the HEA so I'm happy to learn of this offering. = However, my concern is focused more on a procedure that I presently can only imagine looking something akin to: 1. hosted-engine --set-maintenance --mode=3Dglobal 2. hosted-engine --vm-poweroff 3. ovirt-hosted-engine-setup ... 4. use the exact same host name and IP address 5. hosted-engine --vm-start 6. hosted-engine --set-maintenance --mode=3Dnone Or perhaps: 1. create a new guest 2. inside run foo to deploy the HE packages 3. configure it be aware of existing HE 4. run bar manually or wait for the two HE's to sync their state, sort of like a RAID mirror 5. power off the original HE guest and allow the new one to be the sole provider going forward My confusion may simply stem from having forgot much of the process when I deployed my HE back in January this year. But I thought it best to get started on the right foot for the simplest and/or best practice. -- = John Florian --------------050301070802050405070805 Content-Type: text/html; charset=3Dwindows-1252 Content-Transfer-Encoding: 8bit
On 10/29/2015 05:49 AM, Roy Golan wrote:


On Thu, Oct 29, 2015 at 11:39 AM, Roy Golan <rgola= n(a)redhat.com> wrote:


On Wed, Oct 28, 2015 at 10:23 PM, John Florian <jflorian(a)doubledog.org>= ; wrote:
Can somebody please point me to documentation or describe how I should
proceed with this task?=C2=A0 I see lots of pages f= or moving from a physical
engine to a VM and vice-versa but am having no luck finding how to go
about building a new HE to obsolete my original.
using ovirt-hosted-engine-setup you can choose a setup without using the appliance. So you can scratch install your VM


BTW the ovirt-engine-appliacnce we build [1] is Centos based. Seems like perfect candidate.

#install the appliance
yum install ovirt-engine-appliance

#and then run the setup
ovirt-hosted-engine-setup

choose "disk" in this stage
Please specify the device to boot the VM from (cdrom, di=
sk, pxe) [cdrom]: disk


i=
t will suggest the downloaded appliance automatically

S=
ee this wiki for reference http://www.ovirt.org/Features/HE=
ApplianceFlow#Testing


Neat!=C2=A0 I was unaware of the HEA so I'm happy to learn of this offering.=C2=A0 However, my concern is focused more on a procedure that= I presently can only imagine looking something akin to:

1. hosted-engine --set-maintenance --mode=3Dglobal
2. hosted-engine --vm-poweroff
3. ovirt-hosted-engine-setup ...
4. use the exact same host name and IP address
5. hosted-engine --vm-start
6. hosted-engine --set-maintenance --mode=3Dnone

Or perhaps:

1. create a new guest
2. inside run foo to deploy the HE packages
3. configure it be aware of existing HE
4. run bar manually or wait for the two HE's to sync their state, sort of like a RAID mirror
5. power off the original HE guest and allow the new one to be the sole provider going forward

My confusion may simply stem from having forgot much of the process when I deployed my HE back in January this year.=C2=A0 But I thought it best to get started on the right foot for the simplest and/or best practice.
-- =

John Florian
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