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vGPU setup guide
by Callum Smith 24 Jun '18

24 Jun '18

Dear All, IS this the most current and useful example of implenting vGPUs in oVirt? I had understood that 4.2 had NVIDIA GRID support as a flagship feature, but this appears to be 4.1.4? It seems a very reasonable and decent guide, just don't want to go down this route if there's alternatives now available in 4.2.x. https://mpolednik.github.io/2017/09/13/vgpu-in-ovirt/ Regards, Callum -- Callum Smith Research Computing Core Wellcome Trust Centre for Human Genetics University of Oxford e. callum(a)well.ox.ac.uk<mailto:callum@well.ox.ac.uk>

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Fwd: vGPU VM not starting
by Ales Musil 24 Jun '18

24 Jun '18

On Thu, May 17, 2018 at 12:01 AM, Callum Smith <callum(a)well.ox.ac.uk> wrote: > Dear All, > > Our vGPU installation is progressing, though the VM is failing to start. > > 2018-05-16 22:57:34,328+0100 ERROR (vm/1bc9dae8) [virt.vm] > (vmId='1bc9dae8-a0ea-44b3-9103-5805100648d0') The vm start process failed > (vm:943) > Traceback (most recent call last): > File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 872, in > _startUnderlyingVm > self._run() > File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 2872, in > _run > dom.createWithFlags(flags) > File "/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py", > line 130, in wrapper > ret = f(*args, **kwargs) > File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line > 92, in wrapper > return func(inst, *args, **kwargs) > File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1099, in > createWithFlags > if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', > dom=self) > libvirtError: Cannot get interface MTU on '': No such device > > That's the specific error, some other information. It seems the GPU > 'allocation' of uuid against the nvidia-xx mdev type is proceeding > correctly, and the device is being created by the VM instantiation but the > VM does not succeed in going up with this error. Any other logs or > information relevant to help diagnose? > > Regards, > Callum > > -- > > Callum Smith > Research Computing Core > Wellcome Trust Centre for Human Genetics > University of Oxford > e. callum(a)well.ox.ac.uk > > > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > > Hi Callum, can you share your version of the setup? Also do you use OVS switch type in the cluster? Regards, Ales. -- ALES MUSIL INTERN - rhv network Red Hat EMEA <https://www.redhat.com/> amusil(a)redhat.com IM: amusil <https://red.ht/sig>

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Missing step(s) after custom x509 certificates
by John Florian 24 Jun '18

24 Jun '18

I followed the docs at https://www.ovirt.org/documentation/admin-guide/appe-oVirt_and_SSL/ and all works well from the usual web portal. Went to test moVirt and ran into a snag. It wants to download the CA using http://fqdn/ovirt-engine/services/pki-resource?resource=ca-certificate&form…, but that's grabbing the old CA issued by the engine rather than my custom CA. What else needs to be changed? I'm sure I can finagle my way to a fix here by telling moVirt to use a custom URL or file, but this looks like a bug in the docs that would probably best be fixed. -- John Florian

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disk performance findings
by william.dossett＠gmail.com 24 Jun '18

24 Jun '18

I have deployed a HCI environment several times now as I wanted to get some idea of disk performance with Gluster/ On a Dell R720 3 node cluster with H710 PERC controller and 8 x 2TB 7200 RPM SATA drives. My first test was with the 8 drives configured as H/W RAID 6 and I configured Gluster as RAID 6 - quite a lot of redundancy but that was just my first deployment Running IOMeter for 24 hours using all in one access specification I got 240 IOPs. Pretty good for SATA drives. I then broke the RAID and configured 8 virtual disks, one per physical and then deployed Gluster as JBOD - I am not sure how resilient that is, but I assume in a 3 node cluster failures to tolerate would be one. This gave me 267 IOPs. I don't know that much about the internals of Gluster, but when I first asked about this there didn't seem to be much knowledge of what configuration would be best for HCI. I plan to do more research and tests on this, but for what its worth for now, I am going down the JBOD route with no H/W RAID. Regards Bill

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Restore and rename engine
by Staniforth, Paul 24 Jun '18

24 Jun '18

Hello, I have been trying to test our system by restoring from backup to a new machine and running ovirt-engine-rename, then engine-setup. I get to sent back to the main oVirt Web page from any of the portals, which has an Warning triangle saying the engine is initializing. and in the URL it has ovirt-engine/?error_description=server_error%3A+%2Fetc%2Fpki%2Fjava%2Fcacerts+(No+such+file+or+directory)&error=server_error The original machine had a certificate signed by an external authority. I tried putting back the link from apache-ca.pem to ca.pem, the original apache.key.nopass, websocket-proxy.key.nopass as well as hte key files. I upgraded from 4.1.9 to 4.2.3 and it says it is resigning the certificates but still fails. Regards, Paul S. To view the terms under which this email is distributed, please go to:- http://disclaimer.leedsbeckett.ac.uk/disclaimer/disclaimer.html

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quick way to start glusterfs managed engine over?
by william.dossett＠gmail.com 23 Jun '18

23 Jun '18

I have successfully got glusterfs playbook to finish once and then my networking was wrong on the managed engine and on the hosts, so I started over. Now I can't seem to even get that far again. I completely reloaded the hosts, but that takes a while. Last time glusterfs failed right at the end with "host is not in 'Peer in Cluster' state" Redeploying fails as partitions already exist. I am deploying to /dev/sdb Is there a quick way to get /dev/sdb back into a state to redeploy to? I think I got there once by doing pvremove and gdisk zap gpt, but not sure if that worked or caused problem on the redeploy. Its very time consuming to start over from scratch, so would appreciate if there is any shortcut instead of reloading the OS. Thans Bill

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Export as OVA failed
by du_hongyu＠yeah.net 22 Jun '18

22 Jun '18

Hi I want to export my vm, I shutdown my vm, then from the three-dot dropdown select "Export as OVA" but /var/log/ovirt-engine/engine.log has Exception fail. Regards Hongyu Du

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OVirt SHE deployment failed - 4.2.2 / 4.2.3
by jeanbaptiste.coupiac＠nfrance.com 22 Jun '18

22 Jun '18

Hello List 😊 I’m facing an issue regarding Self Hosted Engine appliance deployment on OVirt 4.2( tested on 4.2.2 and 4.2.3). During setup tool, I’m unable to mount a remote storage NFS / iSCSI. When I try to mount an NFS share: [ INFO ] TASK [Remove host-deploy configuration file] [ INFO ] changed: [localhost] Please specify the storage you would like to use (glusterfs, iscsi, fc, nfs)[nfs]: nfs Please specify the nfs version you would like to use (auto, v3, v4, v4_1)[auto]: xxxxxx:/YYYYYY [ ERROR ] Invalid value Please specify the nfs version you would like to use (auto, v3, v4, v4_1)[auto]: Please specify the full shared storage connection path to use (example: host:/path): xxxxxx:/YYYYYY If needed, specify additional mount options for the connection to the hosted-engine storagedomain []: [ INFO ] Creating Storage Domain [ INFO ] TASK [Gathering Facts] [ INFO ] ok: [localhost] [ INFO ] TASK [Check local VM dir stat] [ INFO ] ok: [localhost] [ INFO ] TASK [Enforce local VM dir existence] [ INFO ] skipping: [localhost] [ INFO ] TASK [include_tasks] [ INFO ] ok: [localhost] [ INFO ] TASK [Obtain SSO token using username/password credentials] [ INFO ] ok: [localhost] [ INFO ] TASK [Fetch host facts] [ INFO ] ok: [localhost] [ INFO ] TASK [Fetch cluster ID] [ INFO ] ok: [localhost] [ INFO ] TASK [Fetch cluster facts] [ INFO ] ok: [localhost] [ INFO ] TASK [Fetch Datacenter facts] [ INFO ] ok: [localhost] [ INFO ] TASK [Fetch Datacenter ID] [ INFO ] ok: [localhost] [ INFO ] TASK [Fetch Datacenter name] [ INFO ] ok: [localhost] [ INFO ] TASK [Add NFS storage domain] [ ERROR ] Verify permission settings on the specified storage path.]". HTTP response code is 400. [ ERROR ] fatal: [localhost]: FAILED! => {"changed": false, "msg": "Fault reason is \"Operation Failed\". Fault detail is \"[Permission settings on the specified path do not allow access to the storage.\nVerify permission settings on the specified storage path.]\". HTTP response code is 400."} When I try to mount an iSCSI LUN: Please specify the storage you would like to use (glusterfs, iscsi, fc, nfs)[nfs]: iscsi Please specify the iSCSI portal IP address: XXXXXX Please specify the iSCSI portal port [3260]: Please specify the iSCSI discover user: Please specify the iSCSI discover password: Please specify the iSCSI portal login user: Please specify the iSCSI portal login password: [ INFO ] Discovering iSCSI targets [ INFO ] TASK [Gathering Facts] [ INFO ] ok: [localhost] [ INFO ] TASK [include_tasks] [ INFO ] ok: [localhost] [ INFO ] TASK [Obtain SSO token using username/password credentials] [ INFO ] ok: [localhost] [ INFO ] TASK [Prepare iSCSI parameters] [ INFO ] ok: [localhost] [ INFO ] TASK [Fetch host facts] [ INFO ] ok: [localhost] [ INFO ] TASK [iSCSI discover with REST API] [ INFO ] ok: [localhost] The following targets have been found: [1] iqn.1992-04.com.emc:cx.aaaaaaaaaaaaaaaaa TPGT: 7, portals: XXXXXXX:3260 [2] iqn.1992-04.com.emc:cx. aaaaaaaaaaaaaaaab TPGT: 6, portals: XXXXXXX:3260 [3] iqn.1992-04.com.emc:cx. aaaaaaaaaaaaaaaac TPGT: 8, portals: XXXXXX:3260 [4] iqn.1992-04.com.emc:cx. aaaaaaaaaaaaaaaad TPGT: 5, portals: XXXXXXX:3260 Please select a target (1, 2, 3, 4) [1]: 4 [ INFO ] Getting iSCSI LUNs list [ INFO ] TASK [Gathering Facts] [ INFO ] ok: [localhost] [ INFO ] TASK [include_tasks] [ INFO ] ok: [localhost] [ INFO ] TASK [Obtain SSO token using username/password credentials] [ INFO ] ok: [localhost] [ INFO ] TASK [iSCSI login] [ INFO ] TASK [Get iSCSI LUNs] [ INFO ] ok: [localhost] The following luns have been found on the requested target: [1] 36006016045004300897d2b5bdfea8478 200GiB DGC VRAID status: free, paths: 1 active Please select the destination LUN (1) [1]: 1 [ INFO ] iSCSI discard after delete is disabled [ INFO ] Creating Storage Domain [ INFO ] TASK [Gathering Facts] [ INFO ] ok: [localhost] [ INFO ] TASK [Check local VM dir stat] [ INFO ] ok: [localhost] [ INFO ] TASK [Enforce local VM dir existence] [ INFO ] skipping: [localhost] [ INFO ] TASK [include_tasks] [ INFO ] ok: [localhost] [ INFO ] TASK [Obtain SSO token using username/password credentials] [ INFO ] ok: [localhost] [ INFO ] TASK [Fetch host facts] [ INFO ] ok: [localhost] [ INFO ] TASK [Fetch cluster ID] [ INFO ] ok: [localhost] [ INFO ] TASK [Fetch cluster facts] [ INFO ] ok: [localhost] [ INFO ] TASK [Fetch Datacenter facts] [ INFO ] ok: [localhost] [ INFO ] TASK [Fetch Datacenter ID] [ INFO ] ok: [localhost] [ INFO ] TASK [Fetch Datacenter name] [ INFO ] ok: [localhost] [ INFO ] TASK [Add NFS storage domain] [ INFO ] skipping: [localhost] [ INFO ] TASK [Add glusterfs storage domain] [ INFO ] skipping: [localhost] [ INFO ] TASK [Add iSCSI storage domain] [ ERROR ] Error: Fault reason is "Operation Failed". Fault detail is "[Network error during communication with the Host.]". HTTP response code is 400. [ ERROR ] fatal: [localhost]: FAILED! => {"changed": false, "msg": "Fault reason is \"Operation Failed\". Fault detail is \"[Network error during communication with the Host.]\". HTTP response code is 400."} Some unnecessary informations like IP or IQN were hidden I’m pretty disturbed since iSCSI issue seem resoled since 4.2.2 release: https://bugzilla.redhat.com/show_bug.cgi?id=1529226 Did you have same issue to deploy SHE since 4.2* ? ovirt-hosted-engine-setup seems not working has expected Regards, Jean-Baptiste,

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oVirt export VM as OVA
by du_hongyu＠yeah.net 22 Jun '18

22 Jun '18

Hi I want to export my vm by "Eports as OVA", but i don't know what to write in Directory? Regards Hongyu Du

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Ignore extra parameters in oVirt API
by Hari Prasanth Loganathan 22 Jun '18

22 Jun '18

Hi Team, I want to attach the disk using the oVIrt rest API, I use the version* 4.2* and completed my script. But when I downgrade my oVirt to lower version *4.1*, I get the following error. detail: 'For correct usage, see: https://X.X.99.84/ovirt-engine/api/v4/model#services/disk-attachments/metho…',\n reason: 'Request syntactically incorrect.',\n error: 'For correct usage, see: https://X.X.99.84/ovirt-engine/api/v4/model#services/disk-attachments/metho… ',\n *Reason*: I added an extra parameter called 'isSharable' which is not expected in this API. *So Is there a way to Ignore the extra parameters sent for oVirt API?* *Example :* *Expected :* *{* * "a" : "1"* *}* *I sent :* *{* * "a" : "1",* * "b" : "2"* *}* *My expectation is, Ignore the "b" and the API should work, Is there a flag in oVirt API which ignores the extra parameters? * Thanks, Hari

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