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Q: Get Host Capabilities Failed after restart
by Andrei Verovski 10 Aug '21

10 Aug '21

Hi, I have oVirt 4.4.7.6-1.el8 and one problematic node (HP ProLiant with CentOS 8 stream). After replacing server rack router switch and restart got this error I can’t recover from: VDSM node14 command Get Host Capabilities failed: Message timeout which can be caused by communication issues vdsm-network running fine, but vdsmd can’t start on node14 for whatever reason. All other nodes running fine. Aug 09 10:24:12 node14.mydomain.lv vdsmd_init_common.sh[4825]: vdsm: Running dummybr Aug 09 10:24:13 node14.mydomain.lv vdsmd_init_common.sh[4825]: vdsm: Running tune_system Aug 09 10:24:13 node14.mydomain.lv vdsmd_init_common.sh[4825]: vdsm: Running test_space Aug 09 10:24:13 node14.mydomain.lv vdsmd_init_common.sh[4825]: vdsm: Running test_lo Aug 09 10:24:13 node14.mydomain.lv systemd[1]: Started Virtual Desktop Server Manager. Aug 09 10:24:16 node14.mydomain.lv sudo[7721]: pam_systemd(sudo:session): Failed to create session: Start job for unit user-0.slice failed with 'canceled' Aug 09 10:24:16 node14.mydomain.lv sudo[7721]: pam_unix(sudo:session): session opened for user root by (uid=0) Aug 09 10:24:16 node14.mydomain.lv sudo[7721]: pam_unix(sudo:session): session closed for user root Aug 09 10:24:17 node14.mydomain.lv vdsm[6754]: WARN MOM not available. Error: [Errno 2] No such file or directory Aug 09 10:24:17 node14.mydomain.lv vdsm[6754]: WARN MOM not available, KSM stats will be missing. Error: In web gui -> Management I can’t do anything with the host except restart. Stop aborts with error, all other commands are gray-ed out. Status is “Unassigned”. Host is answering to pings as usual. vdsm.log (from node14) attached. Thanks in advance for any help.

2 11

Storage Domains for a VM from Template
by Shantur Rathore 09 Aug '21

09 Aug '21

Hi all, I have multiple storage domains in my DC. One is backed up that has templates and another one which isn't backed up and I want to use it for VM instances of the template. I cannot find an option to create the VM from a template and use a storage domain other than where the template is stored. Is it even possible? Thanks, Shantur

2 3

any configuration when clients can't directly access oVirt cluster?
by yam yam 09 Aug '21

09 Aug '21

Hello, Under my environment, clients must go through a proxy to reach the oVirt cluster(physical nodes), so that I applied DNAT rules for engine and VM IPs to clients. but there were still some issues like VNC console(+browser) don't work, and I'm not sure other features work well. so, I'm wondering whether there is any oVirt configuration or some guides for such case using the proxy. Thanks,

2 1

ISO Upload in in Paused by System Status
by louisb＠ameritech.net 09 Aug '21

09 Aug '21

I'm attempting to upload an ISO that is approximately 9GB in size. I've succssfullly started th upload process via the oVirt Management Console/Disk. The upload started however, it now has a status of "Paused by System". My storage type is set to NFS Data. Is something happing the back ground that contributing to the "Paused by System"? I have mor the 84TB of space available so I don't think it is a space issue. Is there something that I need to do? At this time I'm going to wait and see if it moves forward on its own. Please provide me with any help or direction. Thanks

5 10

adding new host failed with error "CPU does not match the Cluster CPU Type"
by jimod4＠yahoo.com 09 Aug '21

09 Aug '21

i get the below error when i try to add a new kvm host to the cluster. I know that the cpu is a haswell, Intel E5-2640 v3. if i run "virsh capabilities" it returns <model>Haswell-noTSX-IBRS</model>. My KVM server is redhat 8.4 fully patched today on an DL-360 Gen9. oVirt is at 4.4.7.7-1.el8. i have tried many diffent CPU settings for the cluster and none of them work. this is new oVirt install. ERROR: "The host CPU does not match the Cluster CPU Type and is running in a degraded mode. It is missing the following CPU flags: vmx, model_Haswell-noTSX, nx. Please update the host CPU microcode or change the Cluster CPU Type." MIRCOCODE: root@kvm09 ~]# dmesg | grep 'microcode' [ 0.000000] microcode: microcode updated early to revision 0x46, date = 2021-01-27 [ 1.625108] microcode: sig=0x306f2, pf=0x1, revision=0x46 [ 1.625753] microcode: Microcode Update Driver: v2.2.

3 3

Adding new host to a cluster and stuck at "Detect if host is a prebuilt image".
by fauzuwan.nazri93＠gmail.com 08 Aug '21

08 Aug '21

Hello everyone, I try to add a host to a new cluster and during provisioning the event showed "Detect if host is a prebuilt image." and it just stuck there forever. Version: ovirt-node-ng-image-update-placeholder-4.4.7.1-1.el8.noarch Actual results: Host provisioning stuck at "Detect if host is a prebuilt image." Expected results: Provisioning successful. By checking the ovirt host deployment playbook logs, I can't found any useful output. Below is the last output form the logs. 2021-08-06 19:25:12 MYT - TASK [ovirt-host-deploy-facts : Detect if host is a prebuilt image] ************ 2021-08-06 19:25:12 MYT - ok: [ovirth02.zyzyx.virtnet] 2021-08-06 19:25:12 MYT - { "status" : "OK", "msg" : "", "data" : { "uuid" : "a7b74be9-30ab-4ca4-b2b6-e7af6b86bb6c", "counter" : 24, "stdout" : "ok: [ovirth02.zyzyx.virtnet]", "start_line" : 22, "end_line" : 23, "runner_ident" : "f155ccc8-f6a8-11eb-94c2-00e04cf8ff45", "event" : "runner_on_ok", "pid" : 1549383, "created" : "2021-08-06T11:25:10.333884", "parent_uuid" : "00e04cf8-ff45-b99d-863c-000000000182", "event_data" : { "playbook" : "ovirt-host-deploy.yml", "playbook_uuid" : "c1e368bf-e183-47c0-b6f5-377114c20eab", "play" : "all", "play_uuid" : "00e04cf8-ff45-b99d-863c-000000000007", "play_pattern" : "all", "task" : "Detect if host is a prebuilt image", "task_uuid" : "00e04cf8-ff45-b99d-863c-000000000182", "task_action" : "set_fact", "task_args" : "", "task_path" : "/usr/share/ovirt-engine/ansible-runner-service-project/project/roles/ovirt-host-deploy-facts/tasks/host-os.yml:26", "role" : "ovirt-host-deploy-facts", "host" : "ovirth02.zyzyx.virtnet", "remote_addr" : "ovirth02.zyzyx.virtnet", "res" : { "changed" : false, "ansible_facts" : { "node_host" : true }, "_ansible_no_log" : false }, "start" : "2021-08-06T11:25:10.254355", "end" : "2021-08-06T11:25:10.333550", "duration" : 0.079195, "event_loop" : null, "uuid" : "a7b74be9-30ab-4ca4-b2b6-e7af6b86bb6c" } } } 2021-08-06 19:25:12 MYT - TASK [ovirt-host-deploy-facts : Reset configuration of advanced virtualization module] *** 2021-08-06 19:25:12 MYT - TASK [ovirt-host-deploy-facts : Find relevant advanced virtualization module version] *** 2021-08-06 19:25:12 MYT - TASK [ovirt-host-deploy-facts : Enable advanced virtualization module] ********* 2021-08-06 19:25:12 MYT - TASK [ovirt-host-deploy-facts : Ensure Python3 is installed for CentOS/RHEL8 hosts] *** Thank You.

2 1

fencing and (virtual) power button pression reaction
by Gianluca Cecchi 07 Aug '21

07 Aug '21

Hello, in RHCS we have the fencing concept for targets very similar to the oVirt ones: avoid data corruption and also fast react to problematic hosts situations. The implementation is quite similar to the oVirt one, with several fencing agents sometimes common, like fence_ipmilan. In RHCS documentation there is a chapter describing how to configure hosts so that they don't react to power button pressure. This guarantees that failover is as fast as possible, and also that the same host to be fenced, could create more damages if it reacts and begins the shutdown procedure instead of simply powering off. See: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/ht… It seems to me that oVirt / RHV lack this feature. Inside oVirt NGN and also RHVH-H, the /etc/systemd/logind.conf file is not configured with an entry of type HandlePowerKey=ignore So in some cases of tests I'm doing, I see in its virtual console that the to-be-fenced host begins its OS shutdown flow when it detects the power button pressure. Typically after 2-3 seconds the system powers off and then on again, but I also saw about 10 seconds delays in one case. I have opened a case (number 03002278) for my RHV products, but I would also like to get your comments here if I'm wrong with my considerations. Gianluca

2 1

Architecture design docs
by Jesse Hu 07 Aug '21

07 Aug '21

Hi there, is there any any architecture design docs for oVirt (Engine & Node & VDSM) for neebee to learn? https://www.ovirt.org/Architecture gives 404. Thanks.

4 5

Re: Install of RHV 4.4 failing - "Host is not up, please check logs, perhaps also on the engine machine"
by Brock Collins 07 Aug '21

07 Aug '21

Needed to add appropriate DNS entry / MAC for the VM It is a 192.168.2.122 typically* Sent from my iPhone

1 0

Data recovery from (now unused, but still mounted) Gluster Volume for a single VM
by David White 06 Aug '21

06 Aug '21

My hyperconverged cluster was running out of space. The reason for that is a good problem to have - I've grown more in the last 4 months than in the past 4-5 years combined. But the downside was, I had to go ahead and upgrade my storage, and it became urgent to do so. I began that process last week. I have 3 volumes: [root@cha2-storage dwhite]# gluster volume list data engine vmstore I did the following on all 3 of my volumes: 1) Converted cluster from Replica 3 to Replica 2, arbiter 1 - I did run into an issue where some VMs were paused, but I was able to poweroff and power on those VMs again with no issue 2) Ran the following on Host 2: # gluster volume remove-brick data replica 1 cha1-storage.mgt.my-domain.com:/gluster_bricks/data/data force # gluster volume remove-brick vmstore replica 1 cha1-storage.mgt.my-domain.com:/gluster_bricks/vmstore/vmstore force # gluster volume remove-brick engine replica 1 cha1-storage.mgt.my-domain.com:/gluster_bricks/engine/engine force (rebuilt the array & reboot the server -- when I rebooted, I commented out the original UUIDs from /etc/fstab for the gluster storage) # lvcreate -L 2157G --zero n -T gluster_vg_sdb/gluster_thinpool_gluster_vg_sdb # lvcreate -L 75G -n gluster_lv_engine gluster_vg_sdb # lvcreate -V 600G --thin -n gluster_lv_data gluster_vg_sdb/gluster_thinpool_gluster_vg_sdb # lvcreate -V 1536G --thin -n gluster_lv_vmstore gluster_vg_sdb/gluster_thinpool_gluster_vg_sdb # mkfs.xfs /dev/gluster_vg_sdb/gluster_lv_engine # mkfs.xfs /dev/gluster_vg_sdb/gluster_lv_data # mkfs.xfs /dev/gluster_vg_sdb/gluster_lv_vmstore At this point, I ran lsblk --fs to get the new UUIDs, and put them into /etc/fstab # mount -a # gluster volume add-brick engine replica 2 cha2-storage.mgt.my-domain.com:/gluster_bricks/engine/engine force # gluster volume add-brick vmstore replica 2 cha2-storage.mgt.my-domain.com:/gluster_bricks/vmstore/vmstore force # gluster volume add-brick data replica 2 cha2-storage.mgt.my-domain.com:/gluster_bricks/data/data force So far so good. 3) I was running critically low on disk space on the replica, so I:- Let the gluster volume heal - Then I removed the Host 1 bricks from the volumes When I removed the Host 1 bricks, I made sure that there were no additional healing tasks, then proceeded to do so:# gluster volume remove-brick data replica 1 cha1-storage.mgt.my-domain.com:/gluster_bricks/data/data force # gluster volume remove-brick vmstore replica 1 cha1-storage.mgt.my-domain.com:/gluster_bricks/vmstore/vmstore force At this point, I ran into problems. All of my VMs went into a Paused state, and I had to reboot all of them. All VMs came back online, but two VMs were corrupted. I wound up re-building them from scratch. Unfortunately, we lost a lot of data on 1 of the VMs, as I didn't realize backups were broken on that particular VM. Is there a way for me to go into those disks (that are still mounted to Host 1), examine the Gluster content, and somehow mount / recover the data from the VM that we lost? Sent with ProtonMail Secure Email.

4 9

non-critical request - Disk volume label - Web-ui
by Jorge Visentini 06 Aug '21

06 Aug '21

Hi everyone! Firstly, congratulations for the evolution of the oVirt 4.4.7. A *non-critical* request for a future version... if possible, add a label in disk volumes, in Web-ui. Thank you all! [image: image.png] -- Att, Jorge Visentini +55 55 98432-9868

1 0

Wondering a way to create a universal USB Live OS to connect to VM Portal
by eta.entropy＠gmail.com 06 Aug '21

06 Aug '21

Hi All, once oVirt Infrastracture has been setup, VMs created, assigned to users and they manage them through VM Portal, I'm wondering if there is an easy way to provide to end users a USB key that will just > plug into any computer or boot from it > connect to given VM Portal to manage assigned VMs > connect to given SPICE console to enter assigned VMs Just like a Linux Live USB with preconfigured service to be started and to connect to VM Portal or SPICE console Is there something already available to start from ? Is this something doable or am I dreaming ? Thanks for any input

1 0

Question about PCI storage passthrough for a single guest VM
by Tony Pearce 06 Aug '21

06 Aug '21

I have configured a host with pci passthrough for GPU pass through. Using this knowledge I went ahead and configured nvme SSD pci pass through. On the guest, I partitioned and mounted the SSD without any issues. Searching google for this exact setup I only see results about "local storage" where local storage = using a disk image on the hosts storage. So I have come here to try and find out if there are any concerns or gripes or issues with using nvme pci pass through compared to local storage. Some more detail about the setup: I have 2 identical hosts (nvidia gpu and also nvme pci SSD). A few weeks ago when I started researching converting one of these systems over (from native ubuntu) to ovirt using gpu pci pass through I found the information about local storage. I have 1 host (host #1) set up with local storage mode and the guest VM is using a disk image on this local storage. Host 2 has an identical hardware setup but I did not configure local storage for this host. Instead, I have the ovirt host OS installed on a SATA HDD and the nvme SSD is in pci pass through to a different guest instance. What I notice is Host 2 disk performance is approx. +30% increase over host #1 when running simple dd tests to write data to the disk. So at first glance it appears the nvme pci pass through gives better performance and this is desired, but I have not seen any ovirt documentation that explains that this is supported or any guidelines on configuring such a setup. Aside from the usual caveats when running pci pass through, are there any other gotchya's when running this type of setup (pci nvme ssd pass through)? I am trying to discover any unknowns about this before I use this for real data. I have no previous experience with this and this is my main reason for emailing the group. Any insight appreciated. Kind regards, Tony Pearce

2 3

glance.ovirt.org planned outage: 10.08.2021 at 01:00 UTC
by Evgheni Dereveanchin 06 Aug '21

06 Aug '21

Hi everyone, There's an outage scheduled in order to move glance.ovirt.org to new hardware. This will happen after midnight the upcoming Tuesday between 1AM and 3AM UTC. It will not be possible to pull images from our Glance image registry during this period. Other services will not be affected. If you see any CI jobs failing on Glance tests - please re-run them in the morning after the planned outage window is over. If issues persist please report it via JIRA or reach out to me personally. -- Regards, Evgheni Dereveanchin

1 0

[ANN] oVirt 4.4.8 Fourth Release Candidate is now available for testing
by Sandro Bonazzola 06 Aug '21

06 Aug '21

oVirt 4.4.8 Fourth Release Candidate is now available for testing The oVirt Project is pleased to announce the availability of oVirt 4.4.8 Fourth Release Candidate for testing, as of August 6th, 2021. This update is the eighth in a series of stabilization updates to the 4.4 series. 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 8.4 or similar * CentOS Stream 8 This release supports Hypervisor Hosts on x86_64 and ppc64le architectures for: * Red Hat Enterprise Linux 8.4 or similar * CentOS Stream 8 * oVirt Node 4.4 based on CentOS Stream 8 (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 based on CentOS Stream 8 - oVirt Node NG is already available based on CentOS Stream 8 Additional Resources: * Read more about the oVirt 4.4.8 release highlights: http://www.ovirt.org/release/4.4.8/ * 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/4.4.8/ [2] http://resources.ovirt.org/pub/ovirt-4.4-pre/iso/ -- Sandro Bonazzola MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV Red Hat EMEA <https://www.redhat.com/> sbonazzo(a)redhat.com <https://www.redhat.com/> *Red Hat respects your work life balance. Therefore there is no need to answer this email out of your office hours.*

1 0

Is there a way to support Mellanox OFED with oVirt/RHV?
by Vinícius Ferrão 05 Aug '21

05 Aug '21

Hello, Is there a way to keep Mellanox OFED and oVirt/RHV playing nice with each other? The real issue is regarding GlusterFS. It seems to be a Mellanox issue, but I would like to know if there's something that we can do make both play nice on the same machine: [root@rhvepyc2 ~]# dnf update --nobest Updating Subscription Management repositories. Last metadata expiration check: 0:14:25 ago on Wed 04 Aug 2021 02:01:11 AM -03. Dependencies resolved. Problem: both package mlnx-ofed-all-user-only-5.4-1.0.3.0.rhel8.4.noarch and mlnx-ofed-all-5.4-1.0.3.0.rhel8.4.noarch obsolete glusterfs-rdma - cannot install the best update candidate for package glusterfs-rdma-6.0-49.1.el8.x86_64 - package ovirt-host-4.4.7-1.el8ev.x86_64 requires glusterfs-rdma, but none of the providers can be installed - package mlnx-ofed-all-5.4-1.0.3.0.rhel8.4.noarch obsoletes glusterfs-rdma provided by glusterfs-rdma-6.0-49.1.el8.x86_64 - package glusterfs-rdma-3.12.2-40.2.el8.x86_64 requires glusterfs(x86-64) = 3.12.2-40.2.el8, but none of the providers can be installed - package glusterfs-rdma-6.0-15.el8.x86_64 requires glusterfs(x86-64) = 6.0-15.el8, but none of the providers can be installed - package glusterfs-rdma-6.0-20.el8.x86_64 requires glusterfs(x86-64) = 6.0-20.el8, but none of the providers can be installed - package glusterfs-rdma-6.0-37.el8.x86_64 requires glusterfs(x86-64) = 6.0-37.el8, but none of the providers can be installed - package glusterfs-rdma-6.0-37.2.el8.x86_64 requires glusterfs(x86-64) = 6.0-37.2.el8, but none of the providers can be installed - cannot install both glusterfs-3.12.2-40.2.el8.x86_64 and glusterfs-6.0-49.1.el8.x86_64 - cannot install both glusterfs-6.0-15.el8.x86_64 and glusterfs-6.0-49.1.el8.x86_64 - cannot install both glusterfs-6.0-20.el8.x86_64 and glusterfs-6.0-49.1.el8.x86_64 - cannot install both glusterfs-6.0-37.el8.x86_64 and glusterfs-6.0-49.1.el8.x86_64 - cannot install both glusterfs-6.0-37.2.el8.x86_64 and glusterfs-6.0-49.1.el8.x86_64 - cannot install the best update candidate for package ovirt-host-4.4.7-1.el8ev.x86_64 - cannot install the best update candidate for package glusterfs-6.0-49.1.el8.x86_64 ============================================================================================================================================================= Package Architecture Version Repository Size ============================================================================================================================================================= Installing dependencies: openvswitch x86_64 2.14.1-1.54103 mlnx_ofed_5.4-1.0.3.0_base 17 M ovirt-openvswitch noarch 2.11-1.el8ev rhv-4-mgmt-agent-for-rhel-8-x86_64-rpms 8.7 k replacing rhv-openvswitch.noarch 1:2.11-7.el8ev unbound x86_64 1.7.3-15.el8 rhel-8-for-x86_64-appstream-rpms 895 k Skipping packages with conflicts: (add '--best --allowerasing' to command line to force their upgrade): glusterfs x86_64 3.12.2-40.2.el8 rhel-8-for-x86_64-baseos-rpms 558 k glusterfs x86_64 6.0-15.el8 rhel-8-for-x86_64-baseos-rpms 658 k glusterfs x86_64 6.0-20.el8 rhel-8-for-x86_64-baseos-rpms 659 k glusterfs x86_64 6.0-37.el8 rhel-8-for-x86_64-baseos-rpms 663 k glusterfs x86_64 6.0-37.2.el8 rhel-8-for-x86_64-baseos-rpms 662 k Skipping packages with broken dependencies: glusterfs-rdma x86_64 3.12.2-40.2.el8 rhel-8-for-x86_64-baseos-rpms 49 k glusterfs-rdma x86_64 6.0-15.el8 rhel-8-for-x86_64-baseos-rpms 46 k glusterfs-rdma x86_64 6.0-20.el8 rhel-8-for-x86_64-baseos-rpms 46 k glusterfs-rdma x86_64 6.0-37.2.el8 rhel-8-for-x86_64-baseos-rpms 48 k glusterfs-rdma x86_64 6.0-37.el8 rhel-8-for-x86_64-baseos-rpms 48 k Transaction Summary ============================================================================================================================================================= Install 3 Packages Skip 10 Packages Total size: 18 M Is this ok [y/N]: I really don't care for GlusterFS on this cluster, but Mellanox OFED is much more relevant do me. Thank you all, Vinícius.

3 7

import from vmware provider always failis
by edp＠maddalena.it 05 Aug '21

05 Aug '21

Hi. I have created a new vmware provider to connet to my vmware esxi node. But I have this problem. If I choose to import a vm from that provider, the process always fails. But the errror message is generic: "failed to import vm xyz to Data Center Default, Cluster Default" I have tried to import both Linux and Windows Vms without success. I can see that the import phase go on through importing virtual disk and then when the import process comes almost to the end I get the generic error stated above. There is a place where I can see more detailed logs to solve this problem? Thank you

3 2

Terrible Disk Performance on Windows 10 VM
by regloff＠gmail.com 05 Aug '21

05 Aug '21

I recently installed a Windows 10 VM under oVirt 4.4.5.11-1.el8 Also installed the drivers using "virtio-win-1.9.16.iso" (Then re-installed them after updates just in case it helped) I found a similar complaint with VMWare (https://communities.vmware.com/t5/VMware-Workstation-Pro/vmware-workstation…) So I looked into that and made a registry change for the AHCI controller, as well as setting the 'viodiskcache' to write-back (Seen in another thread on here) - those two changes seemed to help.. marginally. But not much at all. When I do just about anything, disk usage spikes to 100% and stays there for quite a while. Write speeds rarely break 100kb/sec. Not even sure what to look for next. My Linux VMs don't seem to have this issue and the host it's running on is barely working at all. CPU and memory stay close to unused. oVirt didn't show a lot, but in task manager in the Windows VM - you can see disk queue just pegged completely. I've given the VM 6GB of RAM, so that's not it. I even turned off paging in the Windows VM as well, to no avail. This is an example of disk usage, just opening 'Groove Music' for the first time. https://i.postimg.cc/FRLq28Mw/Disk-Activity.png Any ideas? :)

6 13

Question about pci passthrough for guest (SSD passthrough) ?
by Tony Pearce 05 Aug '21

05 Aug '21

I have recently added a fresh installed host on 4.4, with 3 x nvidia gpu's which have been passed through to a guest VM instance. This went very smoothly and the guest can use all 3 host GPUs. The next thing we did was to configure "local storage" so that the single guest instance can make use of faster nvme storage (100,000 iops) compared to the network iscsi storage which is rated at 35,000 iops. The caveat with local storage is that I can only use the remaining free space in /var/ for disk images. The result is the 1TB SSD has around 700GB remaining free space. So I was wondering about simply passing through the nvme ssd (PCI) to the guest, so the guest can utilise the fill SSD. Are there any "gotcha's" with doing this other than the usual gpu passthrough ones? Also my apologies if this is duplicated. I originally asked this [1] a couple of days ago but I am not sure what happened. Kind regards, Tony Pearce [1] Question about pci pass-thru - Users - Ovirt List Archives <https://lists.ovirt.org/archives/list/users@ovirt.org/thread/BN7XHUN2DP6RQG…>

3 2

Combining Virtual machine image with multiple disks attached
by kkchn.in＠gmail.com 05 Aug '21

05 Aug '21

I have few VMs in Redhat Virtualisation environment RHeV ( using Rhevm4.1 ) managed by a third party Now I am in the process of migrating those VMs to my cloud setup with OpenStack ussuri version with KVM hypervisor and Glance storage. The third party is making down each VM and giving the each VM image with their attached volume disks along with it. There are three folders which contain images for each VM . These folders contain the base OS image, and attached LVM disk images ( from time to time they added hard disks and used LVM for storing data ) where data is stored. Is there a way to get all these images to be exported as Single image file Instead of multiple image files from Rhevm it self. Is this possible ? If possible how to combine e all these disk images to a single image and that image can upload to our cloud glance storage as a single image ? Is this possible or Am I asking a Stupid question which theoretically not possible ? Thanks in Advance for sharing your thoughts, Kris.

4 8

Why is it that after running clloud-init using run-once option, all the other configurations take effect except the network configuration?
by Tommy Sway 05 Aug '21

05 Aug '21

1、This is the cloud-init configure. 2. After booting, the network is:

2 6

Restored engine backup: The provided authorization grant for the auth code has expired.
by Nicolás 05 Aug '21

05 Aug '21

Hi, I'm restoring a full ovirt engine backup, having used the --scope=all option, for oVirt 4.3. I restored the backup on a fresh CentOS7 machine. The process went well, but when trying to log into the restored authentication system I get the following message which won't allow me to log in: The provided authorization grant for the auth code has expired. What does that mean and how can it be fixed? Thanks. Nicolás

4 10

Accessing the oVirt Console Remotely
by louisb＠ameritech.net 04 Aug '21

04 Aug '21

I've installed ovirt on the my server (HPDL380Gen10) and was able to start the configuration process on the local machine. I'm tried to access the ovirt console remotely via the web however I've had no success. I'm using the same URL that is used locally, but when I execute the URL via my Firefox browser I get the message that it is unable to connect. I've drop the firewall on both the server and client machine as a possible solution but it did not work. Is there something extra that is needed to access the ovirt console remotely? The FQDN is entered into my DNS, however, I did find that during the configuration process that IP was consumed by ovirtmgmt. I was surprised to see that I'm just assuming that its apart of congiruation process. I have other ports on my sever and I have entered them in my DNS also with the same name but a different IP address. What must I do to gain access to the ovirt console remotely, it would surely make the configuration process easy from my desk vs being in the server area. Thanks

2 1

Self hosted engine installation - Failed to deploy the VM on ISCSI storage
by ericsitunew＠gmail.com 04 Aug '21

04 Aug '21

I was trying to install the latest ovirt engine v4.4.7 but it failed at the following step when I was using the command line. I have tried installing as user root or other sudoers, but same issue. [ INFO ] changed: [localhost] [ INFO ] TASK [ovirt.hosted_engine_setup : Copy configuration archive to storage] [ ERROR ] fatal: [localhost]: FAILED! => {"changed": true, "cmd": ["dd", "bs=20480", "count=1", "oflag=direct", "if=/var/tmp/localvmV8yIIX/5607a2c3-7e94-4403-ad86-7c3bcc745b16", "of=/rhev/data-center/mnt/blockSD/61612a87-4b25-4e09-aecd-02b63c679cf1/images/f9ebe70c-58f4-4229-a149-a18a09571d08/5607a2c3-7e94-4403-ad86-xxxxxxxxxxxx"], "delta": "0:00:00.011759", "end": "2020-08-14 09:03:35.702527", "msg": "non-zero return code", "rc": 1, "start": "2020-08-14 09:03:35.690768", "stderr": "dd: failed to open â/var/tmp/localvmV8yIIX/5607a2c3-7e94-4403-ad86-7c3bcc745b16â: Permission denied", "stderr_lines": ["dd: failed to open â/var/tmp/localvmV8yIIX/5607a2c3-7e94-4403-ad86-xxxxxxxxxxxx: Permission denied"], "stdout": "", "stdout_lines": []} [ ERROR ] Failed to execute stage 'Closing up': Failed executing ansible-playbook [ INFO ] Stage: Clean up [ INFO ] Cleaning temporary resources Just curious if anyone hits the same issue? Thank you.

3 2

Host not becoming active due to VDSM failure
by Vinícius Ferrão 03 Aug '21

03 Aug '21

Hello, I have a host that's failing to bring up VDSM, the logs don't say anything specific, but there's a Python error about DHCP on it. Is there anyone with a similar issue? [root@rhvpower ~]# systemctl status vdsmd ● vdsmd.service - Virtual Desktop Server Manager Loaded: loaded (/usr/lib/systemd/system/vdsmd.service; enabled; vendor preset: disabled) Active: inactive (dead) Jul 30 01:53:40 rhvpower.local.versatushpc.com.br systemd[1]: Dependency failed for Virtual Desktop Server Manager. Jul 30 01:53:40 rhvpower.local.versatushpc.com.br systemd[1]: vdsmd.service: Job vdsmd.service/start failed with result 'dependency'. Jul 30 12:34:12 rhvpower.local.versatushpc.com.br systemd[1]: Dependency failed for Virtual Desktop Server Manager. Jul 30 12:34:12 rhvpower.local.versatushpc.com.br systemd[1]: vdsmd.service: Job vdsmd.service/start failed with result 'dependency'. [root@rhvpower ~]# systemctl start vdsmd A dependency job for vdsmd.service failed. See 'journalctl -xe' for details. On the logs I got the following messages: ==> /var/log/vdsm/upgrade.log <== MainThread::DEBUG::2021-07-30 12:34:55,143::libvirtconnection::168::root::(get) trying to connect libvirt MainThread::INFO::2021-07-30 12:34:55,167::netconfpersistence::238::root::(_clearDisk) Clearing netconf: /var/lib/vdsm/staging/netconf MainThread::INFO::2021-07-30 12:34:55,178::netconfpersistence::188::root::(save) Saved new config RunningConfig({'ovirtmgmt': {'netmask': '255.255.255.0', 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': True, 'ipaddr': '10.20.0.106', 'defaultRoute': True, 'dhcpv6': False, 'gateway': '10.20.0.1', 'mtu': 1500, 'switch': 'legacy', 'stp': False, 'bootproto': 'none', 'nameservers': ['10.20.0.1']}, 'servers': {'vlan': 172, 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': True, 'dhcpv6': False, 'mtu': 1500, 'switch': 'legacy', 'defaultRoute': False, 'stp': False, 'bootproto': 'none', 'nameservers': []}, 'xcat-other': {'vlan': 2020, 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': True, 'dhcpv6': False, 'mtu': 1500, 'switch': 'legacy', 'defaultRoute': False, 'stp': False, 'bootproto': 'none', 'nameservers': []}, 'xcat-nodes1': {'vlan': 2021, 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': True, 'dhcpv6': False, 'mtu': 1500, 'switch': 'legacy', 'defaultRoute': False, 'stp': False, 'bootproto': 'none', 'nameservers': []}, 'xcat-nodes3': {'vlan': 2023, 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': True, 'dhcpv6': False, 'mtu': 1500, 'switch': 'legacy', 'defaultRoute': False, 'stp': False, 'bootproto': 'none', 'nameservers': []}, 'xcat-nodes2': {'vlan': 2022, 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': True, 'dhcpv6': False, 'mtu': 1500, 'switch': 'legacy', 'defaultRoute': False, 'stp': False, 'bootproto': 'none', 'nameservers': []}, 'nfs': {'vlan': 200, 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': True, 'dhcpv6': False, 'mtu': 1500, 'switch': 'legacy', 'defaultRoute': False, 'stp': False, 'bootproto': 'none', 'nameservers': []}, 'storage': {'vlan': 192, 'netmask': '255.255.255.240', 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': False, 'ipaddr': '192.168.10.6', 'dhcpv6': False, 'mtu': 1500, 'switch': 'legacy', 'defaultRoute': False, 'bootproto': 'none', 'nameservers': []}, 'xcat-nodes4': {'vlan': 2024, 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': True, 'dhcpv6': False, 'mtu': 1500, 'switch': 'legacy', 'defaultRoute': False, 'stp': False, 'bootproto': 'none', 'nameservers': []}}, {'bond0': {'nics': ['enP48p1s0f2', 'enP48p1s0f3'], 'options': 'mode=4', 'switch': 'legacy', 'hwaddr': '98:be:94:78:cc:72'}}, {}) to [/var/lib/vdsm/staging/netconf/nets,/var/lib/vdsm/staging/netconf/bonds,/var/lib/vdsm/staging/netconf/devices] MainThread::INFO::2021-07-30 12:34:55,179::netconfpersistence::238::root::(_clearDisk) Clearing netconf: /var/lib/vdsm/persistence/netconf MainThread::INFO::2021-07-30 12:34:55,188::netconfpersistence::188::root::(save) Saved new config PersistentConfig({'ovirtmgmt': {'netmask': '255.255.255.0', 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': True, 'ipaddr': '10.20.0.106', 'defaultRoute': True, 'dhcpv6': False, 'gateway': '10.20.0.1', 'mtu': 1500, 'switch': 'legacy', 'stp': False, 'bootproto': 'none', 'nameservers': ['10.20.0.1']}, 'servers': {'vlan': 172, 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': True, 'dhcpv6': False, 'mtu': 1500, 'switch': 'legacy', 'defaultRoute': False, 'stp': False, 'bootproto': 'none', 'nameservers': []}, 'xcat-other': {'vlan': 2020, 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': True, 'dhcpv6': False, 'mtu': 1500, 'switch': 'legacy', 'defaultRoute': False, 'stp': False, 'bootproto': 'none', 'nameservers': []}, 'xcat-nodes1': {'vlan': 2021, 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': True, 'dhcpv6': False, 'mtu': 1500, 'switch': 'legacy', 'defaultRoute': False, 'stp': False, 'bootproto': 'none', 'nameservers': []}, 'xcat-nodes3': {'vlan': 2023, 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': True, 'dhcpv6': False, 'mtu': 1500, 'switch': 'legacy', 'defaultRoute': False, 'stp': False, 'bootproto': 'none', 'nameservers': []}, 'xcat-nodes2': {'vlan': 2022, 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': True, 'dhcpv6': False, 'mtu': 1500, 'switch': 'legacy', 'defaultRoute': False, 'stp': False, 'bootproto': 'none', 'nameservers': []}, 'nfs': {'vlan': 200, 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': True, 'dhcpv6': False, 'mtu': 1500, 'switch': 'legacy', 'defaultRoute': False, 'stp': False, 'bootproto': 'none', 'nameservers': []}, 'storage': {'vlan': 192, 'netmask': '255.255.255.240', 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': False, 'ipaddr': '192.168.10.6', 'dhcpv6': False, 'mtu': 1500, 'switch': 'legacy', 'defaultRoute': False, 'bootproto': 'none', 'nameservers': []}, 'xcat-nodes4': {'vlan': 2024, 'bonding': 'bond0', 'ipv6autoconf': False, 'bridged': True, 'dhcpv6': False, 'mtu': 1500, 'switch': 'legacy', 'defaultRoute': False, 'stp': False, 'bootproto': 'none', 'nameservers': []}}, {'bond0': {'nics': ['enP48p1s0f2', 'enP48p1s0f3'], 'options': 'mode=4', 'switch': 'legacy', 'hwaddr': '98:be:94:78:cc:72'}}, {}) to [/var/lib/vdsm/persistence/netconf/nets,/var/lib/vdsm/persistence/netconf/bonds,/var/lib/vdsm/persistence/netconf/devices] MainThread::DEBUG::2021-07-30 12:34:55,188::cmdutils::130::root::(exec_cmd) /usr/share/openvswitch/scripts/ovs-ctl status (cwd None) ==> /var/log/vdsm/supervdsm.log <== restore-net::INFO::2021-07-30 12:34:55,924::restore_net_config::69::root::(_restore_sriov_config) Non persisted SRIOV devices found: {'0033:01:00.0', '0003:01:00.0'} restore-net::INFO::2021-07-30 12:34:55,924::restore_net_config::458::root::(restore) starting network restoration. restore-net::DEBUG::2021-07-30 12:34:55,942::restore_net_config::366::root::(_wait_for_for_all_devices_up) All devices are up. restore-net::DEBUG::2021-07-30 12:34:55,968::cmdutils::130::root::(exec_cmd) /sbin/tc qdisc show (cwd None) restore-net::DEBUG::2021-07-30 12:34:55,989::cmdutils::138::root::(exec_cmd) SUCCESS: <err> = b''; <rc> = 0 restore-net::DEBUG::2021-07-30 12:34:56,087::plugin::261::root::(_check_version_mismatch) NetworkManager version 1.30.0 restore-net::DEBUG::2021-07-30 12:34:56,088::context::144::root::(register_async) Async action: Retrieve applied config: ethernet enP48p1s0f2 started restore-net::DEBUG::2021-07-30 12:34:56,088::context::144::root::(register_async) Async action: Retrieve applied config: ethernet enP48p1s0f3 started restore-net::DEBUG::2021-07-30 12:34:56,088::context::144::root::(register_async) Async action: Retrieve applied config: bridge xcat-nodes3 started restore-net::DEBUG::2021-07-30 12:34:56,089::context::144::root::(register_async) Async action: Retrieve applied config: bridge xcat-other started restore-net::DEBUG::2021-07-30 12:34:56,089::context::144::root::(register_async) Async action: Retrieve applied config: bridge xcat-nodes4 started restore-net::DEBUG::2021-07-30 12:34:56,089::context::144::root::(register_async) Async action: Retrieve applied config: bridge ovirtmgmt started restore-net::DEBUG::2021-07-30 12:34:56,089::context::144::root::(register_async) Async action: Retrieve applied config: bond bond0 started restore-net::DEBUG::2021-07-30 12:34:56,089::context::144::root::(register_async) Async action: Retrieve applied config: vlan bond0.192 started restore-net::DEBUG::2021-07-30 12:34:56,089::context::144::root::(register_async) Async action: Retrieve applied config: vlan bond0.2020 started restore-net::DEBUG::2021-07-30 12:34:56,090::context::144::root::(register_async) Async action: Retrieve applied config: vlan bond0.2022 started restore-net::DEBUG::2021-07-30 12:34:56,090::context::144::root::(register_async) Async action: Retrieve applied config: vlan bond0.2024 started restore-net::DEBUG::2021-07-30 12:34:56,090::context::144::root::(register_async) Async action: Retrieve applied config: vlan bond0.172 started restore-net::DEBUG::2021-07-30 12:34:56,090::context::144::root::(register_async) Async action: Retrieve applied config: vlan bond0.2021 started restore-net::DEBUG::2021-07-30 12:34:56,090::context::144::root::(register_async) Async action: Retrieve applied config: vlan bond0.2023 started restore-net::DEBUG::2021-07-30 12:34:56,090::context::144::root::(register_async) Async action: Retrieve applied config: vlan bond0.200 started restore-net::DEBUG::2021-07-30 12:34:56,090::context::144::root::(register_async) Async action: Retrieve applied config: bridge xcat-nodes1 started restore-net::DEBUG::2021-07-30 12:34:56,090::context::144::root::(register_async) Async action: Retrieve applied config: bridge xcat-nodes2 started restore-net::DEBUG::2021-07-30 12:34:56,091::context::144::root::(register_async) Async action: Retrieve applied config: bridge nfs started restore-net::DEBUG::2021-07-30 12:34:56,091::context::144::root::(register_async) Async action: Retrieve applied config: bridge servers started restore-net::DEBUG::2021-07-30 12:34:56,091::context::144::root::(register_async) Async action: Retrieve applied config: bridge virbr0 started restore-net::DEBUG::2021-07-30 12:34:56,092::context::153::root::(finish_async) Async action: Retrieve applied config: ethernet enP48p1s0f2 finished restore-net::DEBUG::2021-07-30 12:34:56,093::context::153::root::(finish_async) Async action: Retrieve applied config: ethernet enP48p1s0f3 finished restore-net::DEBUG::2021-07-30 12:34:56,093::context::153::root::(finish_async) Async action: Retrieve applied config: bridge xcat-nodes3 finished restore-net::DEBUG::2021-07-30 12:34:56,094::context::153::root::(finish_async) Async action: Retrieve applied config: bridge xcat-other finished restore-net::DEBUG::2021-07-30 12:34:56,095::context::153::root::(finish_async) Async action: Retrieve applied config: bridge xcat-nodes4 finished restore-net::DEBUG::2021-07-30 12:34:56,096::context::153::root::(finish_async) Async action: Retrieve applied config: bridge ovirtmgmt finished restore-net::DEBUG::2021-07-30 12:34:56,097::context::153::root::(finish_async) Async action: Retrieve applied config: bond bond0 finished restore-net::DEBUG::2021-07-30 12:34:56,098::context::153::root::(finish_async) Async action: Retrieve applied config: vlan bond0.192 finished restore-net::DEBUG::2021-07-30 12:34:56,099::context::153::root::(finish_async) Async action: Retrieve applied config: vlan bond0.2020 finished restore-net::DEBUG::2021-07-30 12:34:56,099::context::153::root::(finish_async) Async action: Retrieve applied config: vlan bond0.2022 finished restore-net::DEBUG::2021-07-30 12:34:56,100::context::153::root::(finish_async) Async action: Retrieve applied config: vlan bond0.2024 finished restore-net::DEBUG::2021-07-30 12:34:56,100::context::153::root::(finish_async) Async action: Retrieve applied config: vlan bond0.172 finished restore-net::DEBUG::2021-07-30 12:34:56,101::context::153::root::(finish_async) Async action: Retrieve applied config: vlan bond0.2021 finished restore-net::DEBUG::2021-07-30 12:34:56,101::context::153::root::(finish_async) Async action: Retrieve applied config: vlan bond0.2023 finished restore-net::DEBUG::2021-07-30 12:34:56,102::context::153::root::(finish_async) Async action: Retrieve applied config: vlan bond0.200 finished restore-net::DEBUG::2021-07-30 12:34:56,102::context::153::root::(finish_async) Async action: Retrieve applied config: bridge xcat-nodes1 finished restore-net::DEBUG::2021-07-30 12:34:56,103::context::153::root::(finish_async) Async action: Retrieve applied config: bridge xcat-nodes2 finished restore-net::DEBUG::2021-07-30 12:34:56,105::context::153::root::(finish_async) Async action: Retrieve applied config: bridge nfs finished restore-net::DEBUG::2021-07-30 12:34:56,106::context::153::root::(finish_async) Async action: Retrieve applied config: bridge servers finished restore-net::DEBUG::2021-07-30 12:34:56,107::context::153::root::(finish_async) Async action: Retrieve applied config: bridge virbr0 finished restore-net::ERROR::2021-07-30 12:34:56,167::restore_net_config::462::root::(restore) restoration failed. Traceback (most recent call last): File "/usr/lib/python3.6/site-packages/vdsm/network/restore_net_config.py", line 460, in restore unified_restoration() File "/usr/lib/python3.6/site-packages/vdsm/network/restore_net_config.py", line 112, in unified_restoration classified_conf = _classify_nets_bonds_config(available_config) File "/usr/lib/python3.6/site-packages/vdsm/network/restore_net_config.py", line 237, in _classify_nets_bonds_config net_info = NetInfo(netswitch.configurator.netinfo()) File "/usr/lib/python3.6/site-packages/vdsm/network/netswitch/configurator.py", line 323, in netinfo _netinfo = netinfo_get(vdsmnets, compatibility) File "/usr/lib/python3.6/site-packages/vdsm/network/netinfo/cache.py", line 268, in get return _get(vdsmnets) File "/usr/lib/python3.6/site-packages/vdsm/network/netinfo/cache.py", line 76, in _get extra_info.update(_get_devices_info_from_nmstate(state, devices)) File "/usr/lib/python3.6/site-packages/vdsm/network/netinfo/cache.py", line 165, in _get_devices_info_from_nmstate nmstate.get_interfaces(state, filter=devices) File "/usr/lib/python3.6/site-packages/vdsm/network/netinfo/cache.py", line 164, in <dictcomp> for ifname, ifstate in six.viewitems( File "/usr/lib/python3.6/site-packages/vdsm/network/nmstate/api.py", line 228, in is_dhcp_enabled return util_is_dhcp_enabled(family_info) File "/usr/lib/python3.6/site-packages/vdsm/network/nmstate/bridge_util.py", line 137, in is_dhcp_enabled return family_info[InterfaceIP.ENABLED] and family_info[InterfaceIP.DHCP] KeyError: 'dhcp' The engine is fencing the machine constantly but it reboots and come back with the same issue after reboot. Thanks all.

3 4