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Changing the bridge for ovirt hosted engine
by Jordan Conway 21 Feb '21

21 Feb '21

Hello, I'd like to move my ovirt hosted engine deploy to a different cluster, but the problem that I'm faced with is that my hosted engine bridge runs on "ovirtmgmt" but the cluster I'd like to move it to the default vm network is "ovirtmgmt_vlan" Is there a process in which I could shutdown my hosted vm, edit it's network then bring it back up on the new cluster? I have already tried redeploying the new cluster with "deploy hosted engine" on it, but when I try to start the engine on a host in the new cluster it fails because it can't find the ovirtmgmt bridge. Thank you, Jordan Conway

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oVirt Engine increase RAM and CPU
by Vrgotic, Marko 19 Feb '21

19 Feb '21

Hi oVirt, What is the cleanest way to increase the memory and cpu for SHE engine? We have the Engine running on top of three HA hosts, so I guess the specs need to be change on all three, while engine is down. Is it done by editing the VM libvirt conf file or some other way? Where do I allocate more RAM to JAVA for oVirt? We are currently running 4.3.8 version. Kindly awaiting your reply. ----- kind regards/met vriendelijke groeten Marko Vrgotic Sr. System Engineer @ System Administration ActiveVideo o: +31 (35) 6774131 m: +31 (65) 5734174 e: m.vrgotic(a)activevideo.com<mailto:m.vrgotic@activevideo.com> w: www.activevideo.com<http://www.activevideo.com> ActiveVideo Networks BV. Mediacentrum 3745 Joop van den Endeplein 1.1217 WJ Hilversum, The Netherlands. The information contained in this message may be legally privileged and confidential. It is intended to be read only by the individual or entity to whom it is addressed or by their designee. If the reader of this message is not the intended recipient, you are on notice that any distribution of this message, in any form, is strictly prohibited. If you have received this message in error, please immediately notify the sender and/or ActiveVideo Networks, LLC by telephone at +1 408.931.9200 and delete or destroy any copy of this message.

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VXLAN
by Daniel Menzel 19 Feb '21

19 Feb '21

Hi, currently we're evaluation the usage of VXLAN in oVirt - and strangely enough we don't find anything in the manual. Has this been implemented, yet? Or are we just blind because it is hidden somewhere in the tons of features of /ovn/? Kind regards, Daniel -- Daniel Menzel Geschäftsführer Menzel IT GmbH Charlottenburger Str. 33a 13086 Berlin +49 (0) 30 / 5130 444 - 00 daniel.menzel(a)menzel-it.net https://menzel-it.net Geschäftsführer: Daniel Menzel, Josefin Menzel Unternehmenssitz: Berlin Handelsregister: Amtsgericht Charlottenburg Handelsregister-Nummer: HRB 149835 B USt-ID: DE 309 226 751

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Self-hosted engine storage migration
by Domenico Princi 18 Feb '21

18 Feb '21

Hi to all, let me explain the scenario: In developer lab, I have a ovirt 4.1 environment with a single host and a self-hosted engine. The hosted engine runs on a nfs storage type. In this environment runs twelve VMs (thirteen if we include the self-hosted engine). So, now I have the urgency to do the following activities: 1) Migrate the hosted engine storage from nfs to fc (I have now an fc storage on this host). 2) Upgrade the ovirt to 4.3 release. So, I would like to have your help to understand how to implement the above two steps in this particular case ( one host and the self-hosted engine ). Regards

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Small SAN suggestions?
by Chris Adams 18 Feb '21

18 Feb '21

I have an oVirt cluster with a significantly oversized SAN for storage (iSCSI, have 30TB storage but am only using about 2.5TB). I'm looking for a more appropriately-sized setup. Any suggestions? This is currently a Dell EqualLogic array - it doesn't look like they really even have a smallish VM-storage (at least that isn't VMware) product these days. Looking at our stats, we're doing more write than read ops (outside of when backups run), typically under 150 write ops per second. I'm not looking at replacing servers right now, so not looking at hyperconverged. Just interested in what hardware people are using these days for a setup this size. Thanks. -- Chris Adams <cma(a)cmadams.net>

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Re: Small SAN suggestions?
by Chris Adams 18 Feb '21

18 Feb '21

Once upon a time, Matthew.Stier(a)fujitsu.com <Matthew.Stier(a)fujitsu.com> said: > Disks + Linux + iSCSI target (Need I say more) So I've done that before (set that up on spare hardware for a dev cluster). It works, but... not necessarily the level of reliability I'd like. I'd be back to a single point of failure for the whole cluster, which is not so good. -- Chris Adams <cma(a)cmadams.net>

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Building new cluster today - OS recommendations
by Gervais de Montbrun 16 Feb '21

16 Feb '21

Hi All, I've been testing with a single server "cluster" running oVirt w/Gluster and am about to build my in house cluster using three Dell servers. I was planing on putting CentOS 8 on these servers and building oVirt on top. With the recent changes to CentOS changing to CentOS Stream, I have concerns. I'm tempted to build my cluster with CentOS 8 (as this is what I tested on) and assume that there will be some official word from oVirt as to how to proceed come end of year. Any suggestions from folks here? Any one know if there is anything out from oVirt crew already around this? Cheers, Gervais

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Testing PXE uefi boot in oVirt
by Gianluca Cecchi 16 Feb '21

16 Feb '21

Hello, I'm testing a configuration with a CentOS 8.3 VM as a PXE server for UEFI boot. Its chipset/fw type is "I440FX Chipset with BIOS", I don't think it is important. And I have another (tobe, configured in hw as rhel 8.0) CentOS 8 VM configured now as "Q35 Chipset with UEFI" as a client. I already removed filters from vnics of both It seems that the client successfully downloads the BOOTX64.EFI but then fails fetching the netboot image with the message: Fetching Netboot Image Unable to fetch TFTP image: TFTP Error under tftp root dir I created grub.cfg this way set timeout=60 menuentry 'CentOS 8.3' { linuxefi images/c83/vmlinuz ip=dhcp inst.repo=http://172.20.0.1/c83/ initrdefi images/c83/initrd.img } and also a link to it with the mac address of the client in the form grub.cfg-00:1a:4a:19:01:54 -> grub.cfg documentation for uefi pxe server config is not quite clear on where to put it and naming Any good docs? Also the latest rh el 8.3 advanced installation guide is not so clear... See here for a screenshot: https://drive.google.com/file/d/1YJwgmg-0vTcXYWHbgCf81m8SLsN7Rwjf/view?usp=… For instance, is it expected that I can test this functionality at all using oVirt VMs? So the UEFI implementation for PXE boot? At the moment I'm using virtio as the vnic type for both the server and the client. Do I have to change them to something different (eg e1000)? Thanks in advance for any input. Gianluca

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[ANN] oVirt 4.4.5 Fifth Release Candidate is now available for testing
by Lev Veyde 16 Feb '21

16 Feb '21

oVirt 4.4.5 Fifth Release Candidate is now available for testing The oVirt Project is pleased to announce the availability of oVirt 4.4.5 Fifth Release Candidate for testing, as of February 11th, 2021. This update is the fifth in a series of stabilization updates to the 4.4 series. How to prevent hosts entering emergency mode after upgrade from oVirt 4.4.1 Note: Upgrading from 4.4.2 GA or later should not require re-doing these steps, if already performed while upgrading from 4.4.1 to 4.4.2 GA. These are only required to be done once. Due to Bug 1837864 <https://bugzilla.redhat.com/show_bug.cgi?id=1837864> - Host enter emergency mode after upgrading to latest build If you have your root file system on a multipath device on your hosts you should be aware that after upgrading from 4.4.1 to 4.4.5 you may get your host entering emergency mode. In order to prevent this be sure to upgrade oVirt Engine first, then on your hosts: 1. Remove the current lvm filter while still on 4.4.1, or in emergency mode (if rebooted). 2. Reboot. 3. Upgrade to 4.4.5 (redeploy in case of already being on 4.4.5). 4. Run vdsm-tool config-lvm-filter to confirm there is a new filter in place. 5. Only if not using oVirt Node: - run "dracut --force --add multipath” to rebuild initramfs with the correct filter configuration 6. Reboot. Documentation - If you want to try oVirt as quickly as possible, follow the instructions on the Download <https://ovirt.org/download/> page. - For complete installation, administration, and usage instructions, see the oVirt Documentation <https://ovirt.org/documentation/>. - For upgrading from a previous version, see the oVirt Upgrade Guide <https://ovirt.org/documentation/upgrade_guide/>. - For a general overview of oVirt, see About oVirt <https://ovirt.org/community/about.html>. Important notes before you try it Please note this is a pre-release build. The oVirt Project makes no guarantees as to its suitability or usefulness. This pre-release must not be used in production. Installation instructions For installation instructions and additional information please refer to: https://ovirt.org/documentation/ This release is available now on x86_64 architecture for: * Red Hat Enterprise Linux 8.3 or newer * CentOS Linux (or similar) 8.3 or newer This release supports Hypervisor Hosts on x86_64 and ppc64le architectures for: * Red Hat Enterprise Linux 8.3 or newer * CentOS Linux (or similar) 8.3 or newer * oVirt Node 4.4 based on CentOS Linux 8.3 (available for x86_64 only) See the release notes [1] for installation instructions and a list of new features and bugs fixed. Notes: - oVirt Appliance is already available for CentOS Linux 8 - oVirt Node NG is already available for CentOS Linux 8 - We found a few issues while testing on CentOS Stream so we are still basing oVirt 4.4.5 Node and Appliance on CentOS Linux. Additional Resources: * Read more about the oVirt 4.4.5 release highlights: http://www.ovirt.org/release/4.4.5/ * Get more oVirt project updates on Twitter: https://twitter.com/ovirt * Check out the latest project news on the oVirt blog: http://www.ovirt.org/blog/ [1] http://www.ovirt.org/release/4.4.5/ [2] http://resources.ovirt.org/pub/ovirt-4.4-pre/iso/ -- Lev Veyde Senior Software Engineer, RHCE | RHCVA | MCITP Red Hat Israel <https://www.redhat.com> lev(a)redhat.com | lveyde(a)redhat.com <https://red.ht/sig> TRIED. TESTED. TRUSTED. <https://redhat.com/trusted>

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Problem importing VMs from SDs
by Miguel Martín 16 Feb '21

16 Feb '21

Hello guys, I found a problem when importing VMs from SDs and I filed https://bugzilla.redhat.com/show_bug.cgi?id=1927199 Is there any possible workaround to be able to import them? Everything I tried so far failed miserably... Thanks! -- Miguel Martin Software Maintenance Engineer Red Hat EMEA <https://www.redhat.com> mmartinv(a)redhat.com T: +34914148845 <http://redhatemailsignature-marketing.itos.redhat.com/> <https://red.ht/sig>

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