April 2024 - Devel - oVirt List Archives

Re: Yuriy about NVMe over fabrics for oVirt
by Nir Soffer 12 Aug '24

12 Aug '24

On Thu, Nov 2, 2023 at 4:40 PM Yuriy <ykhokhlov(a)gmail.com> wrote: > Hi Nir! > > This is Yuriy. > We agreed to continue the subject via email. > So the options are: 1. Using Managed Block Storage (cinderlib) with a driver that supports NVMe/TCP. Lastest oVirt has the needed changes to configure this. Benny and I tested with Lightbits[1] driver in a virtualized environment. This is basically a POC that may work for you or not, or require more work that you will have to do yourself since not much development is happening now in oVirt. 2. Using the devices via multipath Legacy storage domains are based on multipath. It may be possible to use multipath on top of NVMe devices, and in this case they look like a normal LUN so you can create a storage domain from such devices. oVirt will not handle connections for you, and all the devices must be connected to all nodes at the same time, just like FC/iSCSI LUNs. You will likely not get the performance benefit of NVMe/TCP. 3. Using host devices If what you need is using some devices (which happen to be connected via be NVMe/TCP), maybe you can attach them to a VM directly (using host devices). This gives the best possible performance but no features (snapshots, backup, live migration, live storage migration, etc.) [1] https://www.lightbitslabs.com/ Nir

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Can someone assign https://github.com/oVirt/ovirt-site/issues/3156 to me
by Geoff O'Callaghan 21 Apr '24

21 Apr '24

@gocallag as i've fixed it and would like to close. Thanks Geoff

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Can someone assign https://github.com/oVirt/ovirt-site/issues/3159 to me as i've fixed it.
by Geoff O'Callaghan 21 Apr '24

21 Apr '24

@gocallag in github. Thanks Geoff

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Can someone assign me https://github.com/oVirt/ovirt-site/issues/3165
by Geoff O'Callaghan 21 Apr '24

21 Apr '24

It's all working and i'd like to close the issue. Or someone can just close it. Thanks Geoff

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storage domains (obsolete)
by Geoff O'Callaghan 21 Apr '24

21 Apr '24

Hi All, I notice that ISO, Export etc domains report as no longer supported and i'm wondering if anyone would have concerns if I raised a PR to firstly remove those options from the manager UI, leaving the API intact at the moment. At some point we need to pull the bandaid off. Thanks Geoff

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Is OST service down?
by Sandro Bonazzola 03 Apr '24

03 Apr '24

Hi, tried to trigger OST test for https://github.com/oVirt/ovirt-engine/pull/887 but got this error: https://github.com/oVirt/ovirt-engine/actions/runs/8448193473 Any clue on what got broken in the meanwhile? -- Sandro Bonazzola

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