Dear All, Due our acceptance testing, we discovered something. (Document will follow). When we disable one fiber path, no problem multipath finds it way no pings are lost. BUT when we disabled both the fiber paths (so one of the storage domain is gone on this host, but still available on the other host), vms go in paused mode... He chooses a new SPM (can we speed this up?), put's the host in non-responsive (can we speed this up, more important) and the VM's stay on Paused mode... I would expect that they would be migrated (yes, HA is enabled) to the other host and reboot there... Any solution? We are still using oVirt 3.3.1 , but we are planning a upgrade to 3.4 after the easter holiday. Kind Regards, Koen
----- Original Message -----
From: "Koen Vanoppen" <vanoppen.koen@gmail.com> To: users@ovirt.org Sent: Wednesday, April 2, 2014 4:07:19 PM Subject: [Users] HA
Dear All,
Due our acceptance testing, we discovered something. (Document will follow). When we disable one fiber path, no problem multipath finds it way no pings are lost. BUT when we disabled both the fiber paths (so one of the storage domain is gone on this host, but still available on the other host), vms go in paused mode... He chooses a new SPM (can we speed this up?), put's the host in non-responsive (can we speed this up, more important) and the VM's stay on Paused mode... I would expect that they would be migrated (yes, HA is
i guess you mean the host moves to not-operational (in contrast to non-responsive)? if so, the engine will not migrate vms that are paused to do io error, because of data corruption risk. to speed up you can look at the storage domain monitoring timeout: engine-config --get StorageDomainFalureTimeoutInMinutes
enabled) to the other host and reboot there... Any solution? We are still using oVirt 3.3.1 , but we are planning a upgrade to 3.4 after the easter holiday.
Kind Regards,
Koen
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Yes, indeed. I meant not-operational. Sorry. So, if I understand this correctly. When we ever come in a situation that we loose both storage connections on our hypervisor, we will have to manually restore the connections first? And thanx for the tip for speeding up thins :-). Kind regards, Koen 2014-04-02 15:14 GMT+02:00 Omer Frenkel <ofrenkel@redhat.com>:
From: "Koen Vanoppen" <vanoppen.koen@gmail.com> To: users@ovirt.org Sent: Wednesday, April 2, 2014 4:07:19 PM Subject: [Users] HA
Dear All,
Due our acceptance testing, we discovered something. (Document will follow). When we disable one fiber path, no problem multipath finds it way no
are lost. BUT when we disabled both the fiber paths (so one of the storage domain is gone on this host, but still available on the other host), vms go in
----- Original Message ----- pings paused
mode... He chooses a new SPM (can we speed this up?), put's the host in non-responsive (can we speed this up, more important) and the VM's stay on Paused mode... I would expect that they would be migrated (yes, HA is
i guess you mean the host moves to not-operational (in contrast to non-responsive)? if so, the engine will not migrate vms that are paused to do io error, because of data corruption risk.
to speed up you can look at the storage domain monitoring timeout: engine-config --get StorageDomainFalureTimeoutInMinutes
enabled) to the other host and reboot there... Any solution? We are still using oVirt 3.3.1 , but we are planning a upgrade to 3.4 after the easter holiday.
Kind Regards,
Koen
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
----- Original Message -----
From: "Koen Vanoppen" <vanoppen.koen@gmail.com> To: "Omer Frenkel" <ofrenkel@redhat.com>, users@ovirt.org Sent: Wednesday, April 2, 2014 4:17:36 PM Subject: Re: [Users] HA
Yes, indeed. I meant not-operational. Sorry. So, if I understand this correctly. When we ever come in a situation that we loose both storage connections on our hypervisor, we will have to manually restore the connections first?
And thanx for the tip for speeding up thins :-).
Kind regards,
Koen
2014-04-02 15:14 GMT+02:00 Omer Frenkel < ofrenkel@redhat.com > :
----- Original Message -----
From: "Koen Vanoppen" < vanoppen.koen@gmail.com > To: users@ovirt.org Sent: Wednesday, April 2, 2014 4:07:19 PM Subject: [Users] HA
Dear All,
Due our acceptance testing, we discovered something. (Document will follow). When we disable one fiber path, no problem multipath finds it way no pings are lost. BUT when we disabled both the fiber paths (so one of the storage domain is gone on this host, but still available on the other host), vms go in paused mode... He chooses a new SPM (can we speed this up?), put's the host in non-responsive (can we speed this up, more important) and the VM's stay on Paused mode... I would expect that they would be migrated (yes, HA is
i guess you mean the host moves to not-operational (in contrast to non-responsive)? if so, the engine will not migrate vms that are paused to do io error, because of data corruption risk.
to speed up you can look at the storage domain monitoring timeout: engine-config --get StorageDomainFalureTimeoutInMinutes
enabled) to the other host and reboot there... Any solution? We are still using oVirt 3.3.1 , but we are planning a upgrade to 3.4 after the easter holiday.
Kind Regards,
Koen
Hi Koen, Resuming from paused due to io issues is supported (adding relevant folks). Regardless, if you did not define power management, you should manually approve source host was rebooted in order for migration to proceed. Otherwise we risk split-brain scenario. Doron
participants (3)
-
Doron Fediuck -
Koen Vanoppen -
Omer Frenkel