[ovirt-users] Re: EqualLogic SAN controller switchover
On February 27, 2020 8:34:07 PM GMT+02:00, eevans(a)digitaldatatechs.com wrote:
I worked with Equalogic in the past. Doesn't it have the ability
to
replicate to a partner Equalogic?
If so, replicate, once complete do a failover to the new one.
That may be a simplistic approach and not sure if it's Dell best
practices to do so.
Just a thought.
Eric Evans
Digital Data Services LLC.
304.660.9080
-----Original Message-----
From: Chris Adams <cma(a)cmadams.net>
Sent: Thursday, February 27, 2020 12:55 PM
To: users(a)ovirt.org
Subject: [ovirt-users] Re: EqualLogic SAN controller switchover
Once upon a time, Strahil Nikolov <hunter86_bg(a)yahoo.com> said:
> Do you have an idea how long will it take ?
No, it has been years and years since I had to do a switchover on an
EqualLogic (they mostly just run). I know I've read of others using
EqualLogic's for oVirt, so I'm hoping for someone who's experienced a
switchover...
> Keep in mind that in case the domain is declared unavailable
(reached a threshold , which I doesn't know) , all VMs using it
will be paused and oVirt will try to recover them once the storage is
back available.
Right - with the hosted engine on the SAN, I am also curious how that
is impacted (how will the engine HA tooling handle a pause).
--
Chris Adams <cma(a)cmadams.net>
_______________________________________________
Users mailing list -- users(a)ovirt.org
To unsubscribe send an email to users-leave(a)ovirt.org Privacy
Statement: https://www.ovirt.org/site/privacy-policy/
oVirt Code of Conduct:
https://www.ovirt.org/community/about/community-guidelines/
List Archives:
https://lists.ovirt.org/archives/list/users@ovirt.org/message/F44KYWA6SPM...
_______________________________________________
Users mailing list -- users(a)ovirt.org
To unsubscribe send an email to users-leave(a)ovirt.org
Privacy Statement: https://www.ovirt.org/site/privacy-policy/
oVirt Code of Conduct:
https://www.ovirt.org/community/about/community-guidelines/
List Archives:
https://lists.ovirt.org/archives/list/users@ovirt.org/message/Z6ER5NXH67X...
If libvirt cannot write to the VM, it will be paused.
Then several minutes later, the ovirt-ha-agent will realize they can't reach the
status page of the engine and they will destroy and restart the HostedEngine VM.
Then the engine will try to activate the storage domains and I'm not sure if it will
be able to realize that the VMs were paused. At least it should fins your VMs paused and
try to unpause them (as the storage domain has recovered).
I think it will be safer, if you have another storage that you can migrate your VMs
(temporarily) via storage migration and after the change - move them back if needed.
Best Regards,
Strahil Nikolov