[ovirt-users] Re: NFS ISO Domain - Outage ?
I have notice in testing that if the ISO domain goes down, it does affect the vm's.
The same server also has the sdm export domain on it, which I think houses most of the
hard disks. Once the host came back up, everything resumed normal operations.
Eric Evans
Digital Data Services LLC.
304.660.9080
-----Original Message-----
From: Strahil Nikolov <hunter86_bg(a)yahoo.com>
Sent: Wednesday, March 11, 2020 5:35 AM
To: users(a)ovirt.org; Nardus Geldenhuys <nardusg(a)gmail.com>
Subject: [ovirt-users] Re: NFS ISO Domain - Outage ?
On March 11, 2020 9:45:30 AM GMT+02:00, Nardus Geldenhuys <nardusg(a)gmail.com>
wrote:
Hi Ovirt Mailing-list
Hope you are well. We had an outage over several ovirt clusters. It
looks like we had the same ISO NFS domain shared to all off them, many
of the VM's had a CD attached to it. The NFS server went down for an
hour, all hell broke lose when the NFS server went down. Some of the
ovirt nodes became "red/unresponssive" on the ovirt dashboard. We
learned now to spilt the NFS server for ISO's and/or remove the ISO's
when done.
Has anyone seen similar issues with an NFS ISO Domain? Is there special
options we need to pass to the mount to get around this? Can we put the
ISO's somewhere else?
Regards
Nardus
Hi Nardus,
The iso domain is deprecated, but there are some issues when uploading ISOs to
block-based data domains.Using ISOs uploaded to gluster-based data domain is working
pretty fine (I'm using it in my LAB), but you need to properly test prior
implementing on Prod.
As far as I know, oVirt is making I/O checks frequently , so even the hard mount option
won't help.
Is your NFS clusterized ? If not ,you may consider clusterizing it.
Actually, did your VMs got paused or completely crashed ?
Best Regards,
Strahil Nikolov
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