Local and remote storage
by Murilo Morais
Good evening everyone.
Guys, I have two machines that use oVirt, I managed to put CephFS as a
storage domain and everything is working perfectly, but on these two
machines there are 4 NVMe on each, I would like to know if there is any
possibility or any way to use their local storage? I don't care if the host
dies and I don't get the VM up on the other, as it would be for very
specific cases, so there's no problem with that.
2 years, 2 months
Creating an oVirt Engine Appliance on a different EL Distro (eg Rocky Linux)
by Matthew J Black
Hi All,
Here's an interesting question:
What is the process (ie the Step-By-Step process) to create an/the oVirt Engine Appliance based on another version of EL (ie in my case, Rocky Linux)?
Is there a "Manual" somewhere? I mean, surely the oVirt Project's Release Manager has *something* that they follow to create the relevant rpm file - no?
Cheers
Dulux-Oz
2 years, 2 months
ovirt-engine-appliance Location (Pre-Installation)
by Matthew J Black
Hi All,
A couple of Qs:
During the `TASK [ovirt.ovirt.engine_setup : Install oVirt Engine package]` stage of the Management Engine deployment, is this trying to install the ovirt-engine-appliance, or something else?
When we do a pre-install of the ovirt-engine-appliance (ie dnf install ovirt-engine-appliance) where is this installed too, so that we can enter this information into the deployment script at the `Engine Appliance Image Path` stage?
Cheers
Dulux-Oz
2 years, 2 months
Totally outstanding disk performance
by murilo＠evocorp.com.br
Good evening everyone.
I'm implementing oVirt in my infrastructure using Ceph as Storage (I'm using 10 Gibabits interfaces), I managed to raise the Storage correctly, reaching rates of 1.2 Gigabytes per second via NFS. When I went to depoy the hosted-engine via NFS, everything went fine, but when I booted the first VM and tested the disk's performance, I got very low rates. Depending on how I'm writing to disk, I get rates of only 88 Megabytes per second, far below what was expected. Through FIO I get approximately 250 Megabytes per second, which is still quite low compared to what I can get via NFS on the same Host.
I've already tried some Disk Cache configurations and tried to put CephFS as Storage Domain, but I always achieve the same rate, always with the IOPS quite low.
Is there anything else I can do to try to improve these rates? Because I'm finding this quite weird considering how much data I can reach between the Host and Storage.
2 years, 2 months
