Split hosts in a new engine - oVirt 4.4.5
by francesco＠shellrent.com
Hello everyone!
We have less than 500 hosts and ~800 vms handled by our engine and we could benefit from deploy another engine for splitting the workload (in ex.:we perform daily and weekly backup via python script, scheduled snapshot (dell+add). Is there any way for migrating/moving a host from an engine to a new one (same version, ofc)?
I thought about export a backup and then import but then I'll have to "select" whihch host to import and remove all the structure (DC/cluster/host/storoge) from the old one... a bit tricky and dangerous, in my opinion.
Anyone that has already done this?
Thank you for your time and happy holidays!
Francesco
1 year, 11 months
Expand the disk space of the hosting engine
by ziyi Liu
Now my hosting engine /var directory is full, and the 15G free space is fully occupied. When creating the hosting engine, I use 100G, but actually only use 50G. What can I do to make /var bigger?
disk expansion
1 year, 11 months
USB Redirection - Auto choose devices
by jamie.briscoe＠johnstonnc.com
Is there a way to auto choose which devices get redirected the the guest? I have a Windows 2022 VM and I can connect to is using the VM portal and Spice (virt-viewer) and it opens fullscreen perfectly. Perfect VDI solution... Except the fact that I have to click in the top menu and choose my usb devices every time I connect to the vm... I need it to save my selections... Any way to do this?
1 year, 11 months
Network Address Change
by Paul.LKW
Hi All:
I just has a case, I need to change the oVirt host and engine IP address
due to data center decommission I checked in the hosted-engine host
there are some files I could change ;
in ovirt-hosted-engine/hosted-engine.conf
ca_subject="O=simple.com, CN=1.2.3.4"
gateway=1.2.3.254
and of course I need to change the ovirtmgmt interface IP too, I think
just change the above line could do the tick, but where could I change
the other host IP in the cluster ?
I think I have to be lost all the host as once changed the hosted-engine
host IP as it is in diff. sub net.
Does there any command line tools could do that or someone has such
experience could share?
Best Regards,
Paul.LKW
1 year, 11 months
VM stuck reading and writing to disk
by Murilo Morais
Good morning people. I'm experiencing a weird problem.
I have a specific VM that the IO simply crashes.
This VM, during the backup period, executes mysqldump and tries to
compress, after a long period of compacting the JBD2 process appears using
100% of the CPU and also of WA (Wait in the TOP command). Numerous other
VMs perform the same process but only this one remains in this state. When
JBD2 appears, it is necessary to perform a forced reboot, because it stops
practically everything.
I'm using CephFS as Storage Backend. In the VM I can get rates of at least
600 Megs, I can generate gigs and more gigs of data without any problem.
The VMs are using Virtio instead of Virtio-blk.
Hosts are interconnected on 10G SFP+ interfaces, Storages on 40G interfaces.
I believe that the problem is not the Storage, as this behavior does not
exist in other VMs.
What I find strange is that JBD2 goes up and spikes at 100%.
What could be happening? Could it be something in the Guest itself?
1 year, 11 months
Ovirt-node don't communicate with qemu-agent
by Fernando Hallberg
Hi all,
I reinstalled one of the ovirt-nodes, with ovirt-4.5.4, and after the
reinstallation the agents of the vms connected to this node cannot
communicate with the ovirt-engine.
ovirt-engine 4.5.4
any idea?
VMs work perfectly, but the agent doesn't communicate.
Best regards,
Fernando Hallberg
1 year, 11 months
Certificate expiration w/o warning on all clients. Cluster in zombie state
by Gilboa Davara
Hello all,
Even though I do my best to keep track of the certificate issue date across
my different clusters, I somehow missed the vdsm certificate expiration in
one of my clusters.
Now I have an active cluster with multiple nodes (self-hosted / gluster
storage), vdsm service is down on all nodes (due to certificate expiration)
- hence, I cannot get the cluster into global maintenance mode (vdsms are
down), and I cannot access my engine (to renew the engine certificates /
re-enroll hosts).
How can manual renew the host certificate?
Thanks,
Gilboa
1 year, 11 months
Import FC LUN copy/snapshot as storage domain
by KSNull Zero
Hello!
Is it possible to import a FC LUN copy/snapshot as additional storage domain to oVirt to copy large disk from it ?
I believe that this LUN will have the same serial as existing one storage domain.
How can we accomplish this ?
Thank you.
1 year, 11 months
oVirt node 4.5 now load QLogic 10gb interface.
by kalilac＠gmail.com
Hello all.
Again, here, asking for help. I just installed a oVirt node 4.5.4 in a new server but I can't use our 10gb interface becouse even though the module been loaded we can´t see the interface. I tryed install 4.4 oVirt node in the same server and I can see and use the same interface. I tryed with the 4.5.2, el9, el8 and has the same issu.
Operating System: oVirt Node 4.5.4
Kernel: Linux 5.14.0-202.el9.x86_6
module: bnx2i
filename: /lib/modules/5.14.0-202.el9.x86_64/kernel/drivers/scsi/bnx2i/bnx2i.ko.xz
version: 2.7.10.1
license: GPL
description: QLogic NetXtreme II BCM5706/5708/5709/57710/57711/57712/57800/57810/57840 iSCSI Driver
author: Anil Veerabhadrappa <anilgv(a)broadcom.com> and Eddie Wai <eddie.wai(a)broadcom.com>
rhelversion: 9.2
A tryed remove and reload the module but nothing happened.
Anyone has any ideia what is going wrong?
Best regards
1 year, 12 months
