[ovirt-users] Re: oVirt/Ceph iSCSI Issues
Hi All, So, on further investigation/experimentation, it seems that each individual iSCSI Storage Domain is being created (there is visual evidence from watching the Ceph Monitoring Portal, and LVM volumes are being created on the selected LUN/Host) but it *appears* that, for some reason, vdsm is "timing out" (or, at least, that's my interpretation of what is happening) and thus resetting the Storage Domains back to the pre-creation state. So it appears that the fact that there is a previous LUN on the Ceph Pool/Disk is *not* my underlying issue. So my question is: How would it be if I adjusted the following settings (via engine-config), which I obtained from this thread: https://lists.ovirt.org/archives/list/users@ovirt.org/thread/LRZLORSREVEYXJHD6GX5NZGV6NM7EL2Z/ - TimeoutToResetVdsInSeconds - VDSAttemptsToResetCount - VdsRecoveryTimeoutInMintues - VdsRefreshRate - vdsTimeout Anyone have any opinions (on this list and/or other settings)? Cheers Dulux-Oz ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/Z73EIUTOEQEIRKVXDVHSBJ3DSCG7OIZW/
[ovirt-users] Re: oVirt/Ceph iSCSI Issues
Hi All, So I just tried to create an iSCSI Storage Domain again, and got the same results. I grabbed the relevant(?) part of the engine.log file and placed it into Dropbox: https://www.dropbox.com/s/0kt9z21zkewvn3j/extract_engine.log?dl=0 I can see the ERRORs, but I can't figure out what's causing them, because I can't see anything wrong with the system. Would someone be so kind as to take a look and let me know what I'm missing, please? Also, if there's other logs I should be looking at could someone please let me know that as well - I had a root-around and I couldn't see anything else relevant, but then, I'm not one of the devs who knows the system inside and out. Thanks in advance Dulux-Oz ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/OBYJ2NUEX64A46DTSRYSN2NEKB73U7SO/
[ovirt-users] Re: oVirt/Ceph iSCSI Issues
Hi Murlio, Thanks for that. Yes, iSCSI Target is configured with ACL Yes, all the Gateways have the same amount of sessions. Yes, I followed your 6 step-suggestion. So what happened is - and I won't go into all the boring details of how, why, and how - I discovered the remains of another iSCSI Target on the 2nd Gateway. Installing and using tergetcli I removed this old target, which allowed me to then remove and then re-attach the 2nd Gateway to the "real" target (using the Ceph GUI - resetting the gateways to be identical once again), and then ran through the 6-steps. I now have all three oVirt Hosts logged into all three Ceph iSCSI Gateways, with each of the four LUNs reporting connectivity to all three Gateways, etc. So that's the Gateways-connectivity issue resolved. However, I still have the other issue: I still come up with the "The following LUNs are already in use..." message and I still have the same results - ie log messages re: connectivity issues with the new (iSCSI) Storage domain briefly appearing and then being removed again (see 1st post in this thread). This happens with all four LUNs no matter which of the three Gateways I point oVirt Admin GUI at. (Yes, I tried this twelve times to cover the twelve possible combinations). So, anyone got any further ideas? :-) Cheers Dulux-Oz ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/ULAQSCBLPSOKYMZIBXLTCFJNG5BO435H/
[ovirt-users] Re: Max network performance on w2019 guest
On Thu, Dec 1, 2022 at 7:38 AM Yedidyah Bar David wrote: > > If the fault is on the "legacy" application, how can it achieve 5Gbs on > vSphere? > > Best regards, > -- > Didi > > Yes, your considerations do make sense, Didi. My main concern at the beginning was that there could be some limitation "at the wire" with the virtio drivers in Windows. But I think that the iperf2 test has removed this doubt, correct? Possibly there are other "inefficiencies" in the virtio driver, like what experimented with the iperf3, so that the application works better with vSphere than with oVirt. Do you or other ones have any suggestions to dig into that eventually? Does it make sense to set the VM as a high performance one and test the application again? One thing I noticed is that at source the VM was configured as 4 vcpus with 4 sockets, besides the hypervisors (both vSphere and oVirt) having 2 sockets. Do you think it can have any performance impact? What could be the best vcpu configuration: 2 sockets and 2 cores each or 1 socket and 4 cores? I can try to tweak also this config parameters and see Gianluca ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/7KLRMHMNIGKXH5HOGXBXHC4YNHLPOXSO/
