[ovirt-users] Engine Hardware Crash

[Maurice James]

Thanks all for the responses




----- Original Message -----
From: "Maor Lipchuk" <mlipchuk at redhat.com>
To: mjames at media-node.com
Cc: iheim at redhat.com, "users" <users at ovirt.org>
Sent: Monday, September 15, 2014 6:12:38 AM
Subject: Re: [ovirt-users] Engine Hardware Crash



----- Original Message -----
> From: "Itamar Heim" <iheim at redhat.com>
> To: "Maor Lipchuk" <mlipchuk at redhat.com>, "Maurice James" <mjames at media-node.com>
> Cc: "users" <users at ovirt.org>
> Sent: Sunday, September 14, 2014 12:08:28 PM
> Subject: Re: [ovirt-users] Engine Hardware Crash
> 
> On 09/14/2014 11:28 AM, Maor Lipchuk wrote:
> > Hi Maurice,
> >
> > In the mail I sent, I proposed to add those Hosts to a new engine.
> > Those VMs should be registered as external VMs in your engine, and then you
> > can manage them and start, stop or reboot them.
> 
> I do *not* think this is correct. the new engine will only show the VMs.
> it will not know of the storage domains or the disks, etc.
> I think this will *not* work!
In the original mail I explained it could help interacting with those VMs though I raised my doubts about it,
Using external VMs will still provide the engine th ability to interact with those running VMs, though you will only be able to see and stop them.
I guess, if you don't want to use the engine, a better alternative is to use the vdsClient as Douglas proposed.
> 
> > before doing that, please also set InstallVds parameter in the Data Base at
> > vdc_options table to false, to prevent the Host to be re-deployed when it
> > is being registered to the new engine (see [1]).
> >
> > p.s. After stabilizing your environment,
> > you might be interested to upgrade to 3.5.
> > In oVirt 3.5, there is a new DR feature which should help recovering the
> > engine from those scenarios which you just encountered (see [2]).
> >
> >
> > [1] update vdc_options set option_value = false where option_name =
> > 'InstallVds'
> > [2]
> > http://www.ovirt.org/Features/ImportStorageDomain#Disaster_Recovery_flows
> >
> > Regards,
> > Maor
> >
> >
> > ----- Original Message -----
> >> From: "Maurice James" <mjames at media-node.com>
> >> To: dougsland at redhat.com
> >> Cc: "users" <users at ovirt.org>
> >> Sent: Friday, September 12, 2014 10:18:01 PM
> >> Subject: Re: [ovirt-users] Engine Hardware Crash
> >>
> >> I am running 3.4.2 in that environment. I was wondering if there is a way
> >> to
> >> start, stop, reboot the VMs that are present on the hosts that are still
> >> running? I did not see any emails from Maor. Thanks
> >>
> >>
> >>
> >> ----- Original Message -----
> >> From: "Douglas Schilling Landgraf" <dougsland at redhat.com>
> >> To: "Maurice James" <mjames at media-node.com>, "Itamar Heim"
> >> <iheim at redhat.com>
> >> Cc: "users" <users at ovirt.org>
> >> Sent: Friday, September 12, 2014 12:26:11 AM
> >> Subject: Re: [ovirt-users] Engine Hardware Crash
> >>
> >> On 09/11/2014 08:50 AM, Maurice James wrote:
> >>> No back up, just the hard drive. The data is fine its the server board
> >>> that
> >>> is fried. I will eventually get a replacement server that I can use. So
> >>> this brings me back to my original question below:
> >>>
> >>>
> >>> How do I, or can I use vdsm to interact with the VMs that are still
> >>> present
> >>> on those hosts without the engine?
> >>>
> >>
> >> Hi Maurice,
> >>
> >> What's the oVirt environment that you were running? 3.3, 3.4, 3.5?
> >> When you say interact, is it about to start the VM that are you asking?
> >> Could you please clarify? Have you tried the Maor's suggestion?
> >>
> >> For now, I would say to start with:
> >> http://wiki.ovirt.org/VdsClient
> >>
> >> Thanks
> >> Douglas
> >>
> >>>
> >>>
> >>>
> >>> ----- Original Message -----
> >>> From: "Itamar Heim" <iheim at redhat.com>
> >>> To: "Maurice James" <mjames at media-node.com>, "Yair Zaslavsky"
> >>> <yzaslavs at redhat.com>
> >>> Cc: "users" <users at ovirt.org>
> >>> Sent: Wednesday, September 10, 2014 5:20:47 PM
> >>> Subject: Re: [ovirt-users] Engine Hardware Crash
> >>>
> >>> On 09/10/2014 06:45 PM, Maurice James wrote:
> >>>> Yes the db and engine are offline
> >>>>
> >>>
> >>> do you have a backup of the db to restore the engine?
> >>>
> >>>>
> >>>>
> >>>> ----- Original Message -----
> >>>> From: "Yair Zaslavsky" <yzaslavs at redhat.com>
> >>>> To: "Maurice James" <mjames at media-node.com>
> >>>> Cc: "users" <users at ovirt.org>, "Maor Lipchuk" <mlipchuk at redhat.com>,
> >>>> "Allon Mureinik" <amureini at redhat.com>
> >>>> Sent: Wednesday, September 10, 2014 9:34:41 AM
> >>>> Subject: Re: [ovirt-users] Engine Hardware Crash
> >>>>
> >>>> Just to make sure, this means that when it comes to file system , etc..
> >>>> you also have your storage resources available, right?
> >>>>
> >>>> You lost the engine with the db, am I correct ?
> >>>>
> >>>> I'm CCing someone that might have the exact answer for that.
> >>>>
> >>>>
> >>>> ----- Original Message -----
> >>>>> From: "Maurice James" <mjames at media-node.com>
> >>>>> To: "users" <users at ovirt.org>
> >>>>> Sent: Wednesday, September 10, 2014 3:46:35 PM
> >>>>> Subject: [ovirt-users] Engine Hardware Crash
> >>>>>
> >>>>> I just recently had the hardware that acts as the engine crash. I have
> >>>>> a
> >>>>> blinking amber light on the server. I have servers on the remaining
> >>>>> hosts.
> >>>>> How do I, or can I use vdsm to interact with the VMs that are still
> >>>>> present
> >>>>> on those hosts without the engine?
> >>>>>
> >>>>> _______________________________________________
> >>>>> Users mailing list
> >>>>> Users at ovirt.org
> >>>>> http://lists.ovirt.org/mailman/listinfo/users
> >>>>>
> >>>> _______________________________________________
> >>>> Users mailing list
> >>>> Users at ovirt.org
> >>>> http://lists.ovirt.org/mailman/listinfo/users
> >>>>
> >>>
> >>> _______________________________________________
> >>> Users mailing list
> >>> Users at ovirt.org
> >>> http://lists.ovirt.org/mailman/listinfo/users
> >>>
> >>
> >>
> >> --
> >> Cheers
> >> Douglas
> >> _______________________________________________
> >> Users mailing list
> >> Users at ovirt.org
> >> http://lists.ovirt.org/mailman/listinfo/users
> >>
> > _______________________________________________
> > Users mailing list
> > Users at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
> >
> 
>