Good afternoon all,
Welcome to the third part of my trilogy of disaster recovery woes. Much of
my woe is self inflicted, but I have learned enough from this that I now
know how to ask the right question about the original problem that got me
here.
After reinstalling the engine from the ground up, ovirt immediately
recognized the first host (yay) whose network configuration I had manually
fixed on the host console.
I removed the host from the engine, stripped its system down to the bare
OS, then attempted to reinstall ovirt.
Apparently the original network configuration is still saved on the host,
because reinstall kicks the host off of the management network, replacing
the good configuration that I just made on the host with the bad one that
was the original cause of my heartache.
What is wrong with this configuration is that the storage network is on a
10 gbit sfp+ physical network, isolated from the 1 gbit ovirtmgt network
with RJ12 connectors. There is no way to bridge the two networks
Here is the original (bad) configuration:
[image: image.png]
Here is the corrected configuration. Note that it wont let me connect to
the network. it's frustrating because I know that the engine is not
communicating with the host, and I can map out the fix here, but I can't
save it.
[image: image.png]
It will not allow me to remove the host or switch the host to inoperable or
maintenance mode.
Please advise.
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Well, I futzed around for about 3 hours bouncing the engine and the host,
and finally I hit some combination that allowed me to save the
configuration of the ovirtmgmt network on this host. I had to update my
DHCP configuration to force the correct static IP address to the MAC (not
sure why the host insisted on setting this node to DHCP when I configured
it static everywhere, but we got it).
I now have one host started. Working on the next steps - importing the
storage domain.
Can I ask why you didnt just do an engine-cleanup and then engine-setup and with the clean
engine environment manually add your node and import storage domains? You should run it in
a VM take a snapshot of the base config and test it out, it may be useful in the future
for recovery. I learned alot from breaking ovirt because im impatient but I have no
loyalty to it haha, im experimenting with proxmox and ceph and if its better its easy to
switch between 2 KVM Environments.