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GDeploy, thin provisioning and pools
by Endre Karlson 23 Jun '17

23 Jun '17

Hi, I'm trying to get gdeploy working for my servers (3 of them) using the following configu linked below: https://gist.github.com/ekarlso/9bfa0e0560b84ec286bbbbef34ab790d But it seems I need to have 1 pool metadata lv pr volume group? Regards Endre

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problems migrating to hosted engine from bare metal
by cmc 22 Jun '17

22 Jun '17

Hi, I created a new host to deploy a hosted engine, and then used a backup from the bare metal engine and restored this, as per the procedure in: http://www.ovirt.org/documentation/self-hosted/chap-Migrating_from_Bare_Met… Everything worked fine up until step 15 ('Continue setup') as the script said the engine was not responding. I tried the reboot option (option 3), but still it would not connect. So I could not do the final step involving the internal CA, adding the host to an existing cluster (of which there were two other hosts). I was able to connect via vnc and ssh fine to the engine, and from here I could see that the ovirt-engine service was up. I had to install the aaa-ldap extension package to enable ldap auth separately however, but once done I was able to log in, and it showed the old cluster as it was on the bare metal engine. I added the host that I created the hosted engine on, and it installed various packages and then I configured the network and it looked fine, apart from the fact that I could not see a VM named 'HostedEngine' in the list of VMs. I think however that this was not a properly working setup, as the NFS storage I used to setup the hosted engine became unavailable and I think this killed the hosted engine, which caused it to reboot the host it was on. The hosted engine has not come back since then, so I'm guessing it either isn't properly set up for HA or it needs the NFS storage or something else was not properly done by me in the setup. I've restarted the bare metal engine for now as I needed it running for now. My questions are: 1. My understanding is that the NFS storage is initially used to create the hosted engine disk image, and is temporary, and that the hosted engine later gets migrated to the storage used by the rest of the cluster (which in my case is directly attached to the hosts via fibre channel). I suspect that this did not happen. The bare metal engine had some local ISO storage (on a hard disk local to it), which will not be replicated to the hosted engine VM - will this cause a problem for the deployment? I can create some new ISO storage later if not. 2. What is the recommended way to recover from this situation? Should I just run 'hosted-engine --deploy' again and try and find out what is going wrong at step 15? I can probably get the disk image that was on NFS and mount it to find out what went wrong on the initial deployment, or I can run the deployment again and then get the log when it fails at step 15. Ovirt version was 4.1.2.2 Thanks for any help, Cam

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Failed to activate ISO Ovirt 4.1
by rajatjpatel 22 Jun '17

22 Jun '17

Hello Team, I am using Ovirt 4.1 for my production, we are facing issues with ISO Domain. We are facing issues with activating a ISO domain. Using mount -t nfs ovirt.fog.com:/var/lib/exports/iso /mnt we are able to mount the same in all hyp. While using ovirt UI which is giving error. Pls find attach vdsm & engine logs. Regards Rajat

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default login info for repository images
by Dan Sullivan 22 Jun '17

22 Jun '17

I've created a VM using a template imported from a Fedora 24 image in the repository. Now that it is created, what credentials do I use to log into it from the console?

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New installation
by david caughey 22 Jun '17

22 Jun '17

Hi Folks, I just got the go ahead to install oVirt to use as a lab. The servers are: 1xdl360 4x30010k in raid 10 for OS (Manager) should this be clustered with another server for resiliency 5xdl380 2x30010k for OS 6x1TB7.2k RAID5 on each for a data store It will all be behind a proxy and be connected with 1GB links, (2x4 bonds) My plan is to have 1 manager as this is a lab scenario and not production, (yet), or is it better to have a cluster. Is it ok to have a data store on each host, (they won't let me have dedicated storage yet)? Is it wise to share these data_stores between hosts or should 1 store be dedicated to each host individually? There is no need for performance, basically as long as it runs it will work. The final intention is to have templates for OpenStack and CEPH plus lots of Linux examples set up with SDN etc. We have a 90% Windows shop but it is all rapidly changing to OpenStack et al and I want to try and give people the opportunity to use Linux in the lab before they are let lose in production. Plus it gives me the chance to show management exactly what ovirt can do. Any help, advice or links would be greatly appreciated, BR/David

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Regarding Host QoS
by TranceWorldLogic . 22 Jun '17

22 Jun '17

Hi, I have ethernet nic with 10Gbps link speed. I want to setup one network over it with rate limit as 5Gbps When I tried to enter 5000 mbps rate in host qos it throws error saying value cannot be more than 1024. Can some one help me to know how to set limit as 5000mbps(5gbps) rate ? Thanks, ~Rohit

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vm freezes when using yum update
by M Mahboubian 22 Jun '17

22 Jun '17

------=_Part_77643_974078681.1498097222223 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable blockquote, div.yahoo_quoted { margin-left: 0 !important; border-left:1px = #715FFA solid !important; padding-left:1ex !important; background-color:whi= te !important; } Dear all,I appreciate if anybody could possibly help with = the issue I am facing. In our environment we have 2 hosts 1 NFS server and 1 ovirt engine server. = The NFS server provides storage to the VMs in the hosts. I can create new VMs and install os but once i do something like yum update= the VM freezes. I can reproduce this every single time I do yum update. what information/log files should I provide you to trubleshoot this? =C2=A0Regards ------=_Part_77643_974078681.1498097222223 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit <html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office"><head></head><body> <style type="text/css" scoped> blockquote, div.yahoo_quoted { margin-left: 0 !important; border-left:1px #715FFA solid !important; padding-left:1ex !important; background-color:white !important; } </style>Dear all,<div>I appreciate if anybody could possibly help with the issue I am facing.</div><div><br></div><div>In our environment we have 2 hosts 1 NFS server and 1 ovirt engine server. The NFS server provides storage to the VMs in the hosts.</div><div><br></div><div>I can create new VMs and install os but once i do something like yum update the VM freezes. I can reproduce this every single time I do yum update.</div><div><br></div><div>what information/log files should I provide you to trubleshoot this?</div><div><br></div><div> Regards</div> </body></html> ------=_Part_77643_974078681.1498097222223--

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Lowering the bar for wiki contribution?
by Roy Golan 22 Jun '17

22 Jun '17

I'm getting the feeling I'm not alone in this, authoring and publishing a wiki page isn't as used to be for long time. I want to suggest a bit lighter workflow: 1. Everyone can merge their page - (it's a wiki) Same as with (public and open) code, no one has the motivation to publish a badly written wiki page under their name. True, it can have an impact, but not as with broken code 2. Use Page-Status marker The author first merges the draft. Its now out there and should be updated as time goes and its status is DRAFT. Maintainers will come later and after review would change the status to PUBLISH. That could be a header in on the page: --- page status: DRAFT/PUBLISH --- Simple I think, and should work.

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Expand Hosted-Engine Disk Space
by Adam Chesterton 22 Jun '17

22 Jun '17

Hi All, I am encountering a situation where the hosted engine for my test setup has run out of space. It only has 10GB configured, which was an oversight on my part when first deploying it. All storage is Gluster replica 3 (4 volumes; engine, vm, iso, export) and I have plenty of available space. My oVirt version is currently at 4.1.1. I've spent time looking for a solution to expand the disk size, but without luck so far. Most items I've found from previous list emails are from the 3.5 days, and seem to indicate that by 3.6+ you should be able to modify the hosted engine from within the oVirt Admin Web Console. However, when I try to expand the hosted engine disk I get an error that the VM is not managed by the engine, so obviously that functionality is not yet implemented. So, my question is; what is the current process to expand the hosted engine disk? Regards, Adam Chesterton

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GPFS Storage Domains - Live VM Migration Between LocalOnHost Only
by Douglas Duckworth 21 Jun '17

21 Jun '17

Hi I used RHEV in the past and now that I am in a new role we're considering oVirt. I have a few questions: Does oVirt support network Storage Domains using GPFS? Does oVirt support live VM Migration of between Hosts that have "LocalOnHost" (direct attached) Storage Domains only? Best Doug Thanks, Douglas Duckworth, MSc, LFCS HPC System Administrator Scientific Computing Unit Physiology and Biophysics Weill Cornell Medicine E: doug(a)med.cornell.edu O: 212-746-6305 F: 212-746-8690

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