September 2025 - Users - oVirt List Archives

GlusterFS & NFS Storage Performance in OLVM/Ovirt – Tuning Advice Needed
by Gunasekhar Kothapalli 18 Sep '25

18 Sep '25

Hi all, I’m benchmarking storage performance on OLVM using fio across several scenarios (local brick, GlusterFS, NFS, both on host and as storage domains in VMs). I’m seeing significant differences in throughput and latency, especially with GlusterFS and OLVM guest disks. Summary of Results: Location IOPS Bandwidth Total IO Avg Latency Block Size Jobs CPU (sys) Notes Local Brick 1816 1816 MiB/s 109 GiB 587 µs 1M 4 45% Fastest, direct disk OLVM Guest Disk using GlusterFS Storage Domain 117 118 MiB/s 8196 MiB 12.3 ms 1M 4 3.80% Virtualization overhead GlusterFS Mounted on Host 211 211 MiB/s 12.4 GiB 18.8 ms 1M 4 3.50% Improved, but still slower NFS Mount on Host 4241 4242 MiB/s 249 GiB 613 µs 1M 4 80% Fastest network storage OLVM Guest Disk using NFS Storage domain 532 532 MiB/s 32.8 GiB 5.4 ms 1M 4 17.40% NFS on OLVM guest Observation: Both GlusterFS and NFS are on the same network VLAN, but NFS consistently outperforms GlusterFS (both on host and as a storage domain in OLVM). This suggests the network isn’t the bottleneck. The issue may be with GlusterFS configuration, protocol overhead, or OLVM’s handling of storage domains. Questions: Has anyone tuned GlusterFS or OLVM for better performance in similar scenarios? Are there recommended settings or architectural changes to improve GlusterFS throughput/latency? Any best practices for OLVM storage domain configuration (GlusterFS vs NFS)? Is this performance gap expected, or should I look deeper into my setup? Test Details: fio commands used Any advice, tuning tips, or references would be greatly appreciated!

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Bugs with Ovirt
by Александр Грибанов 18 Sep '25

18 Sep '25

Dear Sirs, While using virtualization system Ovirt our company meets a bug in the Snapshoot removal service. When trying to delete Snapshoot in the VM with 2 disks the removal service got hung up and generated unavailability error. Just VM switch-off via request poweroff terminates a frozen process. Please let us know if you know about this bug and if you have any solutions to fix the bug. Sep 9 10:22:43 neutron17 libvirtd[3562]: Timed out during operation: cannot acquire state change lock Sep 9 10:22:43 neutron17 libvirtd[3562]: Failed to terminate process 698578 with SIGTERM: Device or resource busy Sep 9 10:22:43 neutron17 libvirtd[3562]: operation failed: domain is not running Sep 9 10:22:43 neutron17 libvirtd[3562]: Cannot start job (modify, none, none) in API remoteDispatchDomainSetSchedulerParameters for domain in-extnc-01-new; current job is (none, none, none) owned by (0 <null>, 0 <null>, 0 <null> (flags=0x0)) for (0s, 0s, 0s) -- С уважением, Александр Грибанов Служба Главного инженера АО "Интерфакс" Aleksandr.Gribanov(a)interfax.ru<mailto:Aleksandr.Gribanov@interfax.ru> Внешний номер: (495) 787-52-12 Внутренний номер: 3036 [1624867792272]

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Is oVirt a dead project ???
by Diggy Mc 17 Sep '25

17 Sep '25

Based on the lack of list activity and updates, I am starting to think oVirt is a dead project. I sure hope not. It is a great product. My two cents: Whomever at Red Hat decided to abandon RHEV is an idiot. j/s Does anyone know if Oracle plans to fund the oVirt project? I think it would be a great move on their part. I believe virtualization still has a future for years to come. If oVirt is a dead project, what is the next best choice enterprise virtualization? ProxMox? Microsoft Hypervisor? Something else? Feedback is appreciated because I manage/recommend virtualization solutions for several small- and medium-sized companies.

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please ignore, it's just a test
by Marc Dequènes (Duck) 17 Sep '25

17 Sep '25

a very taisty test -- Marc Dequènes (Duck) RedHat OSPO CommInfra

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Is the ovirt permanently dead or will there be a new version?
by ecsi＠ecsi.hu 16 Sep '25

16 Sep '25

Hi all! There hasn't been a new release for almost two years... Someone should say something, but not empty promises.

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Is the ovirt permanently dead or will there be a new version?
by ecsi＠ecsi.hu 15 Sep '25

15 Sep '25

Hi all! There hasn't been a new release for almost two years... Someone should say something, but not empty promises.

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Is the ovirt permanently dead or will there be a new version?
by ecsi＠ecsi.hu 15 Sep '25

15 Sep '25

Hi all! There hasn't been a new release for almost two years... Someone should say something, but not empty promises.

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Unable to launch new VM on few hosts due "Max free Memory for scheduling new VMs:" has less value
by dushyantk.sun＠gmail.com 11 Sep '25

11 Sep '25

Few hosts shows unable to launch vms due memory is not available to schedule vm. However vm has enough memory when check free command. If any one come across such issue, please let me know how we can fix it in oracle olvm

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how to install perticular version of hosted engine such as Version 4.5.4-1.0.31.el8
by dushyantk.sun＠gmail.com 11 Sep '25

11 Sep '25

Currently I am testing upgrade of ovirt engine and looking for help on installing ovirt engine Version 4.5.4-1.0.31.el8. I tried to install this particular version however automated installation hosted engine deploy update it to 4.5.5., It fetches latest rpm from repo. Is there way we can install particular version of hosted engine instead of latest version. Required version of hosted engine : Version 4.5.4-1.0.31.el8

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Offline installation - is is possible?
by postecom＠gmail.com 05 Sep '25

05 Sep '25

I have been looking at oVirt for a while. My current virtualization is an older version of RHV. With RHV, I could have my hypervisors completely isolated from the internet and all updates come through Red Hat's Satellite. Is is possible to add the installation repos as a product in Satellite? It is very important that the hypervisors not have access to the Internet, but all the documentation and installation info that I can find wants the hypervisors to use the COPR plugin and have direct access to centos stream. Thank you

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