--=_fa059df46b7d56aa686c59ced36bcf2e Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi,=0A I gave up trying to restore a backup of my former hosted engine= , I never managed to get engine and nodes communicate again and I need t= o go on. So I installed a new engine (let's try a dedicated one this t= ime) and imported the storage domains successfully. After attaching and= activating them, it seems to be ok and the first VMs I imported are now= running fine. So I just have to redefine logical networks and configu= re them on the hosts, and it is ok ? Maybe final step will be turning= dedicated engine to hosted, I don't know yet. Regards =0A=0A Le 18-= Mar-2018 08:28:15 +0100, didi(a)redhat.com a crit: =0AOn Fri, Mar 16, 20= 18 at 2:48 PM, wrote:=0A > Hi,=0A >=0A > In case of a total failure of= the hosted engine VM, it is recommended to=0A > recreate a new one and= restore a backup. I hope it works, I will probably=0A > have to do this= very soon.=0A >=0A > But is there some kind of "plug and play" features= , able to rebuild=0A > configuration by browsing storage domains, if the= restore process doesn't=0A > work ?=0A=0A It's called "Import Storage D= omain" in oVirt.=0A=0A >=0A > Something like identifying VMs and their s= napshots in the subdirectories,=0A > and the guess what is linked to wha= t, ... ?=0A >=0A > I have a few machines but if I have to rebuild all th= e engine setup and=0A > content, I would like to be able to identify res= ources easily.=0A >=0A > A few times ago, I was doing some experiments w= ith XenServer and=0A > destroyed/recreated some setup items : I ended wi= th a lot of oprhan=0A > resources, and it was a mess to reattach snapsho= ts to their respective VMs.=0A > So if oVirt is more helpful in that way= ...=0A=0A If you try this:=0A=0A 1. Try first on a test setup, as alway= s=0A 2. Make sure to _not_ import the hosted-storage domain, the one use= d to=0A host the hosted-engine VM.=0A 3. So: setup a new hosted-engine s= ystem, then import your _other_ storage=0A domains. Ideally make sure th= e old hosted storage is not accessible to=0A the new system, so that the= new engine does not try to import it accidentally.=0A 4. If you do try= to import, for testing, the old hosted-storage, would be=0A interesting= if you share the results...=0A=0A Best regards,=0A -- =0A Didi =0A=0A--= ------------------------------------------------------------------------= -----------------------=0AFreeMail powered by mail.fr --=_fa059df46b7d56aa686c59ced36bcf2e Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <div><span style=3D"font-family: arial, helvetica,sans-serif; font-size:= 10pt; color: #000000;">Hi,<br /></span></div>=0A<div>&nbsp;</div>=0A<di= v><span style=3D"font-family: arial, helvetica,sans-serif; font-size: 10= pt; color: #000000;">I gave up trying to restore a backup of my former h= osted engine, I never managed to get engine and nodes communicate again= and I need to go on.</span></div>=0A<div>&nbsp;</div>=0A<div><span styl= e=3D"font-family: arial, helvetica,sans-serif; font-size: 10pt; color: #= 000000;">So I installed a new engine (let's try a dedicated one this tim= e) and imported the storage domains successfully.</span></div>=0A<div>Af= ter attaching and activating them, it seems to be ok and the first VMs I= imported are now running fine.</div>=0A<div>&nbsp;</div>=0A<div><span s= tyle=3D"font-family: arial, helvetica,sans-serif; font-size: 10pt; color= : #000000;">So I just have to redefine logical networks and configure th= em on the hosts, and it is ok ?</span></div>=0A<div>&nbsp;</div>=0A<div>= <span style=3D"font-family: arial, helvetica,sans-serif; font-size: 10pt= ; color: #000000;">Maybe final step will be turning dedicated engine to= hosted, I don't know yet.</span></div>=0A<div>&nbsp;</div>=0A<div><span= style=3D"font-family: arial, helvetica,sans-serif; font-size: 10pt; col= or: #000000;">Regards</span></div>=0A<div>&nbsp;</div>=0A<p><br /><br />= Le 18-Mar-2018 08:28:15 +0100, didi(a)redhat.com a &eacute;crit:</p>=0A<d= iv>&nbsp;</div>=0A<blockquote style=3D"margin-left: 0; padding-left: 5px= ; border-left: 2px solid navy;">On Fri, Mar 16, 2018 at 2:48 PM, &lt;spf= ma.tech(a)e.mail.fr&amp;gt; wrote:<br /> &gt; Hi,<br /> &gt;<br /> &gt; In cas= e of a total failure of the hosted engine VM, it is recommended to<br />= &gt; recreate a new one and restore a backup. I hope it works, I will p= robably<br /> &gt; have to do this very soon.<br /> &gt;<br /> &gt; But= is there some kind of "plug and play" features, able to rebuild<br /> &= gt; configuration by browsing storage domains, if the restore process do= esn't<br /> &gt; work ?<br /><br /> It's called "Import Storage Domain"= in oVirt.<br /><br /> &gt;<br /> &gt; Something like identifying VMs an= d their snapshots in the subdirectories,<br /> &gt; and the guess what i= s linked to what, ... ?<br /> &gt;<br /> &gt; I have a few machines but= if I have to rebuild all the engine setup and<br /> &gt; content, I wou= ld like to be able to identify resources easily.<br /> &gt;<br /> &gt; A= few times ago, I was doing some experiments with XenServer and<br /> &g= t; destroyed/recreated some setup items : I ended with a lot of oprhan<b= r /> &gt; resources, and it was a mess to reattach snapshots to their re= spective VMs.<br /> &gt; So if oVirt is more helpful in that way ...<br= /><br /> If you try this:<br /><br /> 1. Try first on a test setup, as= always<br /> 2. Make sure to _not_ import the hosted-storage domain, th= e one used to<br /> host the hosted-engine VM.<br /> 3. So: setup a new= hosted-engine system, then import your _other_ storage<br /> domains. I= deally make sure the old hosted storage is not accessible to<br /> the n= ew system, so that the new engine does not try to import it accidentally= .<br /> 4. If you do try to import, for testing, the old hosted-storage,= would be<br /> interesting if you share the results...<br /><br /> Best= regards,<br /> -- <br /> Didi</blockquote>=0A <br/><= hr>FreeMail powered by <a href=3D"https://mail.fr" target=3D"_blank">mai= l.fr</a>=0A --=_fa059df46b7d56aa686c59ced36bcf2e--