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all hosts lost scenario - restore engine from backup file - LOCKED HOST 4.3 version
by goosesk blabla 20 Mar '22

20 Mar '22

Hi, I have problem with LOCKED host after restore of engine. i am trying many disaster scenarios and one from them is loosing of all hosts with self hosted engine included with backup file of engine only. When all hosts and engine VM were destroyed at the same time, i installed new self hosted engine on hardware from one lost host. Then tried restore engine engine-backup --mode=restore --scope=all --file=backup/file/ovirt-engine-backup --log=backup/log/ovirt-engine-backup.log --no-restore-permissions --provision-db --provision-dwh-db –provision-reports-db After this, lost engine was restored successfully. I had offline Datacentrer, dead hosts and VM. I added new hosts, which were able to connect to domain storage automatically and I was able to start VM. New host cannot has the same IP as already dead host or hardware UID. This can be solved by setup old dead host to maintenance mode and then delete host. Then the same hardware and IP can be reused. But, host where old engine was running is LOCKED. You cannot migrate engine VM, cannot start hosted engine from new engine GUI, cannot setup host to maintenance mode and delete.. This is problem when your hardware for hosts is limited. I would like to ask how to solve this situation, Is there any way how to “reinstall” old hosts? I see that SSL certificates were changed with new installation of new hosts, but I don’t know if there is way how to enable old dead hosts. Is there any way how to destroy old engine VM to add host back to work ? Thank you

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Hosted engine deployment fails with storage domaine error
by Eugène Ngontang 19 Mar '22

19 Mar '22

Hi, Hope you are well on your end. I'm still trying to setup a brand new hosted engine but I'm having "Hosted engine deployment fails with storage domaine error" issue, like shown in the screenshot. I can't figure out what's going on, I have checked the NFS server and everything seems to be working fine, as well as the nfs mount point on the client side (RHV host). Please can one here help moving fast with this troubleshooting? Any idea? Regards, Eugène NG -- LesCDN <http://lescdn.com> engontang(a)lescdn.com ------------------------------------------------------------ *Aux hommes il faut un chef, et au* * chef il faut des hommes!L'habit ne fait pas le moine, mais lorsqu'on te voit on te juge!*

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Re: mdadm vs. JBOD
by jonas＠rabe.ch 19 Mar '22

19 Mar '22

Thanks to Nikolov and Strahil for the valuable input! I was off for a few weeks, so I would like to apologize if I'm potentially reviving a zombie thread. I am a bit confused about where to go with this environment after the discontinuation of the hyperconverged setup. What alternative options are there for us? Or do you think going the Gluster way would still be advisable, even though it seems as it is being discontinued over time? Thanks for any input on this! Best regards, Jonas On 1/22/22 14:31, Strahil Nikolov via Users wrote: > Using the wizzard is utilizing the Gluster Andible roles. > I would highly recommend using it, unless you know what you are doing (for example storage alignment when using Hardware raid). > > Keep in mind that the DHT xlator (the logic in distributed volumes) is shard aware, so your shards are spread between subvolumes and additional performance can be gained.So using replicated-distributed volumes have their benefits. > > If you decide to avoid the software raid, use only replica3 volumes as with SSDs/NVMEs usually the failures are not physical, but logical (maximum writes reached -> predictive failure -> total failure). > > Also, consider mounting via noatime/relatime and context="system_u:object_r:glusterd_brick_t:s0" for your gluster bricks. > > Best Regards, > Strahil Nikolov > > > > On Fri, Jan 21, 2022 at 11:00, Gilboa Davara > > <gilboad(a)gmail.com> mailto:gilboad@gmail.com wrote: > > > > > > _______________________________________________ > > Users mailing list -- users(a)ovirt.org mailto:users@ovirt.org > > To unsubscribe send an email to users-leave(a)ovirt.org mailto:users-leave@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/U2ZEWLRF5D6FE… > > > > >

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querying which LUNs are associated to a specific VM disks
by Sandro Bonazzola 18 Mar '22

18 Mar '22

I got a question on oVirt Itala Telegram group about how to get which LUNs are used by the disks attached to a specific VMs. This information doesn't seem to be exposed in API or within the engine DB. Has anybody ever tried something like this? Thanks, -- 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.*

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Reported Devices - Shows all interfaces
by Jean-Louis Dupond 18 Mar '22

18 Mar '22

Hi, To find out which guest nic is mapped to which ovirt nic you can do the following API call: /ovirt-engine/api/vms/4c1d50b2-4eee-46d6-a1b1-e4d9e21edaa6/nics/76ff8008-ae2e-46da-aaf4-8cc589dd0c12/reporteddevices But I would expect the reporteddevices to only show the one from the specified NIC, but it's not the case as all of them are displayed. Is this a bug? Or was this done by design? Thanks Jean-Louis

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OVIRT INSTALLATION IN SAS RAID
by muhammad.riyaz＠ajex.ae 18 Mar '22

18 Mar '22

I have a Dell PowerEdge 710 server with SAS RAID 1 PERC 6/i, I am trying to install ovirt 4.4 but I could not find the destination disk. in the destination disk page, it is only showing my USB bootable device only. probably this might be SAS RAID diver error, if so how can i load driver during the installation.

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So - no updates nor mentions about CVE-2022-0847 (Dirty Pipe)?
by jasonmicron＠gmail.com 18 Mar '22

18 Mar '22

Sorry if I missed this, but oVirt Engine is impacted. I was hoping to see some sort of release or announcement about this. If there was one, apologies. RHV has mitigated this: https://access.redhat.com/errata/RHSA-2022:0841

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can not add Storage Domain using offload iscsi
by lkopyt＠gmail.com 17 Mar '22

17 Mar '22

Hi, some facts: ovirt-node 4.3.10 (based on Centos 7) hosts are HP blades BL460C with network card supporting iscsi HBA (there are no iscsi nics visible on OS level, but i had to configure ip addresses manually since they were not inherited from BIOS ) # iscsiadm -m iface default tcp,<empty>,<empty>,<empty>,<empty> iser iser,<empty>,<empty>,<empty>,<empty> be2iscsi.c4:34:6b:b3:85:75.ipv4.0 be2iscsi,c4:34:6b:b3:85:75,172.40.2.21,<empty>,iqn.1990-07.com.emulex:ovirt1worker1 be2iscsi.c4:34:6b:b3:85:75.ipv6.0 be2iscsi,c4:34:6b:b3:85:75,<empty>,<empty>,iqn.1990-07.com.emulex:ovirt1worker1 be2iscsi.c4:34:6b:b3:85:71.ipv6.0 be2iscsi,c4:34:6b:b3:85:71,<empty>,<empty>,iqn.1990-07.com.emulex:ovirt1worker1 be2iscsi.c4:34:6b:b3:85:71.ipv4.0 be2iscsi,c4:34:6b:b3:85:71,172.40.1.21,<empty>,iqn.1990-07.com.emulex:ovirt1worker1 # iscsiadm -m session be2iscsi: [1] 172.40.2.1:3260,12 iqn.1992-04.com.emc:cx.ckm00143501947.a0 (non-flash) be2iscsi: [2] 172.40.2.2:3260,6 iqn.1992-04.com.emc:cx.ckm00143501947.b1 (non-flash) be2iscsi: [5] 172.40.1.1:3260,5 iqn.1992-04.com.emc:cx.ckm00143501947.a1 (non-flash) be2iscsi: [6] 172.40.1.2:3260,4 iqn.1992-04.com.emc:cx.ckm00143501947.b0 (non-flash) [root@worker1 ~]# multipath -l 3600601604a003a00ee4b8ec05aa5ec11 dm-47 DGC ,VRAID size=100G features='2 queue_if_no_path retain_attached_hw_handler' hwhandler='1 alua' wp=rw |-+- policy='service-time 0' prio=0 status=active | |- 3:0:2:1 sds 65:32 active undef running | `- 4:0:0:1 sdo 8:224 active undef running `-+- policy='service-time 0' prio=0 status=enabled |- 3:0:3:1 sdu 65:64 active undef running `- 4:0:1:1 sdq 65:0 active undef running ... target SAN storage is detected, and exposed LUNs are visible. I can even partition them, create filesystem and mount them in OS, all when doing manually step by step. when trying to add Storage Domain in iscsi the LUNs/targets are nicely visible in GUI, buf after choosing a LUN the domain becomes locked and finally enters detatched mode. can not attach the Datacenter. in engine.log similar entry for each host: 2022-03-16 22:27:40,736+01 INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.ConnectStorageServerVDSCommand] (EE-ManagedThreadFactory-engine-Thread-1111) [e8778752-1bc1-4ba9-b9c0-ce651d35d824] START, ConnectStorageServerVDSCommand(HostName = worker1, StorageServerConnectionManagementVDSParameters:{hostId='d009f919-b817-4220-874e-edb0e072faa1', storagePoolId='00000000-0000-0000-0000-000000000000', storageType='ISCSI', connectionList='[StorageServerConnections:{id='4dd97e5d-c162-4997-8eda-3d8881c44e31', connection='172.40.1.2', iqn='iqn.1992-04.com.emc:cx.ckm00143501947.b0', vfsType='null', mountOptions='null', nfsVersion='null', nfsRetrans='null', nfsTimeo='null', iface='null', netIfaceName='null'}, StorageServerConnections:{id='6e52a5bb-0157-4cbe-baa3-cfc8001d35b2', connection='172.40.2.1', iqn='iqn.1992-04.com.emc:cx.ckm00143501947.a0', vfsType='null', mountOptions='null', nfsVersion='null', nfsRetrans='null', nfsTimeo='null', iface='null', netIfaceName='null'}, StorageServerConnecti ons:{id='87194270-bb0e-49d8-9700-17436f2a3e28', connection='172.40.1.1', iqn='iqn.1992-04.com.emc:cx.ckm00143501947.a1', vfsType='null', mountOptions='null', nfsVersion='null', nfsRetrans='null', nfsTimeo='null', iface='null', netIfaceName='null'}, StorageServerConnections:{id='ef8e2fbd-cbf6-45e9-8e83-f85a50001c2d', connection='172.40.2.2', iqn='iqn.1992-04.com.emc:cx.ckm00143501947.b1', vfsType='null', mountOptions='null', nfsVersion='null', nfsRetrans='null', nfsTimeo='null', iface='null', netIfaceName='null'}]', sendNetworkEventOnFailure='true'}), log id: 317c3ffd ... 2022-03-16 22:30:40,836+01 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.ConnectStorageServerVDSCommand] (EE-ManagedThreadFactory-engine-Thread-1111) [e8778752-1bc1-4ba9-b9c0-ce651d35d824] Command 'ConnectStorageServerVDSCommand(HostName = worker1, StorageServerConnectionManagementVDSParameters:{hostId='d009f919-b817-4220-874e-edb0e072faa1', storagePoolId='00000000-0000-0000-0000-000000000000', storageType='ISCSI', connectionList='[StorageServerConnections:{id='4dd97e5d-c162-4997-8eda-3d8881c44e31', connection='172.40.1.2', iqn='iqn.1992-04.com.emc:cx.ckm00143501947.b0', vfsType='null', mountOptions='null', nfsVersion='null', nfsRetrans='null', nfsTimeo='null', iface='null', netIfaceName='null'}, StorageServerConnections:{id='6e52a5bb-0157-4cbe-baa3-cfc8001d35b2', connection='172.40.2.1', iqn='iqn.1992-04.com.emc:cx.ckm00143501947.a0', vfsType='null', mountOptions='null', nfsVersion='null', nfsRetrans='null', nfsTimeo='null', iface='null', netIfaceName='null'}, StorageServerConnec tions:{id='87194270-bb0e-49d8-9700-17436f2a3e28', connection='172.40.1.1', iqn='iqn.1992-04.com.emc:cx.ckm00143501947.a1', vfsType='null', mountOptions='null', nfsVersion='null', nfsRetrans='null', nfsTimeo='null', iface='null', netIfaceName='null'}, StorageServerConnections:{id='ef8e2fbd-cbf6-45e9-8e83-f85a50001c2d', connection='172.40.2.2', iqn='iqn.1992-04.com.emc:cx.ckm00143501947.b1', vfsType='null', mountOptions='null', nfsVersion='null', nfsRetrans='null', nfsTimeo='null', iface='null', netIfaceName='null'}]', sendNetworkEventOnFailure='true'})' execution failed: VDSGenericException: VDSNetworkException: Message timeout which can be caused by communication issues how to make it working? I read offload iscsi is supported but all the documentation i found is for software iscsi. any hints welcomed thanks

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Welcome to oVirt 4.5.0 Alpha test day!
by Sandro Bonazzola 17 Mar '22

17 Mar '22

Hi, 4.5.0 Alpha was released yesterday! As for oVirt 4.4 test day we have a trello board at https://trello.com/b/3FZ7gdhM/ovirt-450-test-day . If you have troubles accessing the trello board please let me know. A release management draft page has been created at: https://www.ovirt.org/release/4.5.0/ If you're willing to help testing the release during the test days please join the oVirt development mailing list at https://lists.ovirt.org/archives/list/devel@ovirt.org/ and report your feedback there. Please join the trello board for sharing what you're going to test so others can focus on different areas not covered by your test. If you don't want to register to trello, please share on the oVirt development mailing list and we'll add it to the board. The board is publicly visible also to non-registered users. Instructions for installing oVirt 4.5.0 Alpha and oVirt 4.5.0 Beta for testing have been added to the release page https://www.ovirt.org/release/4.5.0/ and to relevant documentation sections on the oVirt website. Professional Services, Integrators and Backup vendors: please run a test session against your additional services, integrated solutions, downstream rebuilds, backup solution accordingly. If you're not listed here: https://ovirt.org/community/user-stories/users-and-providers.html consider adding your company there. If you're willing to help updating the localization for oVirt 4.5.0 please follow https://ovirt.org/develop/localization.html If you're willing to help promoting the oVirt 4.5.0 release you can submit your banner proposals for the oVirt home page and for the social media advertising at https://github.com/oVirt/ovirt-site/issues As an alternative please consider submitting a case study as in https://ovirt.org/community/user-stories/user-stories.html Feature owners: please start recording a presentation of your feature for oVirt Youtube channel: https://www.youtube.com/c/ovirtproject If you have some new feature requiring community feedback / testing please add your case under the "Test looking for volunteer" section. Do you want to contribute to getting ready for this release? Read more about oVirt community at https://ovirt.org/community/ and join the oVirt developers https://ovirt.org/develop/ -- 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.*

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Moving from oVirt 4.4.4 to 4.4.10
by ayoub souihel 17 Mar '22

17 Mar '22

Dears , I hope you are doing well . I have a cluster of 02 nodes and one standalone Manager , all of them are running on top of CentOS 8.3 witch already EOL , i would upgrade to the latest version witch is based on CentOS stream , but i am really confused about the best way to do it , basically i draft tis action plan , please advice me : - Redeploy a new engine with CentOS Stream . - Restore the ovirt backup on this new engine . - Redeploy one host with 4.4.10 . - Add the node to the cluster . - Move the VMs to the new hosts . - upgrade the second node . thank you in advance . Regards,

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