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ovirt node 3.6 stable
by Marcelo Leandro 11 Apr '16

11 Apr '16

hello, which link to download the stable version of oVirt node 3.6? Thanks

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Install oVirt with directly-attached SCSI devices
by Paolo Smiraglia 11 Apr '16

11 Apr '16

Hi all! My name is Paolo and I'm the sysadmin of the research group (infosec) where I work. Recently our infrastructure was updated and I'm planning to use oVirt as virtualisation manager. The new "toys" they gave me are - HP DL360G9 (x2) - HP MSA1040 (double controller with mini SAS connection) By exploring the oVIrt documentation, seems that the best solution for storage management would be having something like NSF, iSCSI and so on. Unfortunately, LUNs exposed by our MSA1040 are recognised by the two DL36G9 as directly-attached SCSI devices. I asked Google and I found this old post from the far 2013 http://lists.ovirt.org/pipermail/users/2013-November/017924.html that seems to be very similar to my case and the scenario is not rosy... :-( Is now, in 2016, something changed? Have you something to suggest? Many thanks, Paolo -- PAOLO SMIRAGLIA

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kvm vcpu0 unhandled rdmsr
by gregor 10 Apr '16

10 Apr '16

Hi, on one Host I get very often the message "kvm ... vcpu0 unhandled rdmsr ..." When this occurs some VM's are stuck. Really bad is this for an Windows Server 2012 R2 VM which stucks so heavy that the VM is getting corrupt and the VM is unable to boot anymore and a Windows Recovery in any way didn't help. Therefor I had to reinstall the VM, this works for some day's but now the VM is still damaged. So I can't use Windows Server 2012 R2 on this machine but the customer needs it and I have some days to ship it to my customer. So I have to decide to stay on oVirt or use another product. Besides, oVirt run on my others hosts (without Windows VM) very well since a long time. On a CentOS 7 VM I have similar problems where the NIC is getting offline sometime + the XFS filesystems get some errors and I have to fix this in recovery mode. oVirt: 3.6.4.1-1.el7.centos machine: HP ProLiant ML110 Gen9 VM's: 3 CentOS 7 and one Windows Server 2012 R2 I hope somebody can help. regards gregor

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Cinder scheduled snapshots
by Bond, Darryl 10 Apr '16

10 Apr '16

Is there any plan to provide a means to schedule snapshots for cinder? Darryl ________________________________ The contents of this electronic message and any attachments are intended only for the addressee and may contain legally privileged, personal, sensitive or confidential information. If you are not the intended addressee, and have received this email, any transmission, distribution, downloading, printing or photocopying of the contents of this message or attachments is strictly prohibited. Any legal privilege or confidentiality attached to this message and attachments is not waived, lost or destroyed by reason of delivery to any person other than intended addressee. If you have received this message and are not the intended addressee you should notify the sender by return email and destroy all copies of the message and any attachments. Unless expressly attributed, the views expressed in this email do not necessarily represent the views of the company.

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Error: Storage format V3 is not supported
by Alex R 10 Apr '16

10 Apr '16

I am trying to import a domain that I have used as an export on a previous install. The previous install was no older then v3.5 and was built with the all-in-one-plugin. Before destroying that system I took a portable drive and made an export domain to export my VMs and templates. The new system is up to date an was built as a hosted engine. When I try to import the domain I get the following error: "Error while executing action: Cannot add Storage. Storage format V3 is not supported on the selected host version." I just need to recover the VMs. I connect the USB hard drive to the host and make an export directory just like I did on the old host. # ls -ld /mnt/export_ovirt drwxr-xr-x. 5 vdsm kvm 4096 Mar 6 11:27 /mnt/export_ovirt I have tried both doing an NFS mount # cat /etc/exports.d/ovirt.exports /home/engineha 127.0.0.1/32(rw,anonuid=36,anongid=36,all_squash) /mnt/backup-vm/ 10.3.1.0/24(rw,anonuid=36,anongid=36,all_squash) 127.0.0.1/32(rw,anonuid=36,anongid=36,all_squash) # cat /mnt/export_ovirt/images/4be3f6ac-7946-4e7b-9ca2-11731c8ba236/dom_md/metadata CLASS=Backup DESCRIPTION=eport_storage IOOPTIMEOUTSEC=10 LEASERETRIES=3 LEASETIMESEC=60 LOCKPOLICY= LOCKRENEWALINTERVALSEC=5 POOL_UUID=053926e4-e63d-450e-8aa7-6f1235b944c6 REMOTE_PATH=/mnt/export_ovirt/images ROLE=Regular SDUUID=4be3f6ac-7946-4e7b-9ca2-11731c8ba236 TYPE=LOCALFS VERSION=3 _SHA_CKSUM=2e6e203168bd84f3dc97c953b520ea8f78119bf0 # ls -l /mnt/export_ovirt/images/4be3f6ac-7946-4e7b-9ca2-11731c8ba236/master/vms/4873de49-9090-40b1-a21d-665633109aa2/4873de49-9090-40b1-a21d-665633109aa2.ovf -rw-r--r--. 1 vdsm kvm 9021 Mar 6 11:50 /mnt/export_ovirt/images/4be3f6ac-7946-4e7b-9ca2-11731c8ba236/master/vms/4873de49-9090-40b1-a21d-665633109aa2/4873de49-9090-40b1-a21d-665633109aa2.ovf Thanks, Alex

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R: Re: Autostart VMS
by Stefano Danzi 09 Apr '16

09 Apr '16

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Autostart VMS
by Brett I. Holcomb 09 Apr '16

09 Apr '16

In VMware we could setup guests to autostart when the host started and define the order. Is that doable in oVirt? The only thing I've seen is the watchdog and tell it to reset but nothing that allows me to define who starts up when and if they autostart. I assume it's there but I must be missing it or haven't found it in the web portal. Thanks.

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Re: [ovirt-users] Autostart VMS
by Nir Soffer 08 Apr '16

08 Apr '16

On Fri, Apr 8, 2016 at 9:33 PM, Brett I. Holcomb <biholcomb(a)l1049h.com> wrote: > On Fri, 2016-04-08 at 19:25 +0300, Nir Soffer wrote: > > On Fri, Apr 8, 2016 at 7:17 PM, Brett I. Holcomb <biholcomb(a)l1049h.com> > wrote: > > On Fri, 2016-04-08 at 11:31 +0200, Martin Sivak wrote: > > Hi, > > > I set highly available on, did not pin to any host, and also set the > watchdog which should reset if they go down but I'm not sure that will start > them if the host comes up and the VMs are not running. I'll look at the CLI > first. > > > The engine will try to keep the VM running. So if one host goes down, > it will restart the VM on some other host automatically. We will also > migrate the VM (or some other to free resources) when the current host > gets too loaded. We do not require any migration addons, it just > works. But of course we have usually more hosts in a cluster to make > this possible. > > I do not really remember what happens when all hosts are restarted > (power outage) though as that is quite special case. > > Regards > > -- > Martin Sivak > SLA / oVirt > > > > Thanks. I only have one host so who knows what will happen. I'm working on > a script that will basically emulate what VMware does - start VMS in a given > order at startup of the host/engine. I'll also file a feature request. > > > Why do you care about the order? > > Isn't it enough to restart all the vms after a host was restarted? > > Nir > > > Does the Engine start all VMs after the host is powered up and the engine > running if I set a watchdog on a VM? I know it will try to restart the VM > if it goes down once oVirt is up and running. If it will start the VMs at > reboot time that helps. I think only HA vms are restarted. Adding Michal to add more info on this. > The reason for the order is that you need some servers such as DNS, file > servers, up first before other systems can resolve addresses or mount > shares. For Windows you need domain controllers running before the other > windows systems that are part of the domain. For applications such as Lotus > Notes the servers had to come up in the correct order. Lets say you have a way to order the vms when some vms are down. What will happen to when dns, file servers or domain controller will crash? Do you have to restart all the vms depending on them or they can recover and detect that vm they depend on were restarted? Seems that what you need is a systemd for your data center - every host define the host it depends on, and the system generate the correct order to start the vms, starting vms in the same time when possible. Please reply also to the list, this thread may be useful to others. Nir > On Wed, Apr 6, 2016 at 9:10 PM, Brett I. Holcomb <biholcomb(a)l1049h.com> > wrote: > > On Wed, 2016-04-06 at 13:42 -0400, Adam Litke wrote: > > On 06/04/16 01:46 -0400, Brett I. Holcomb wrote: > > In VMware we could setup guests to autostart when the host started and > define the order. Is that doable in oVirt? The only thing I've seen > is the watchdog and tell it to reset but nothing that allows me to > define who starts up when and if they autostart. I assume it's there > but I must be missing it or haven't found it in the web portal. > > > In oVirt guests aren't tied to a host by default (although you can set > them to run only on a specific host if you want). The closest thing I > can think of would be the High Availability features (VM->Edit). > oVirt will try to restart highly available VMs if they go down. You > can also set the priority for migration and restart in that pane. > Hopefully a combination of host pinning and the high availability > settings will get you close enough to where you want to be. > > Otherwise, you could always do some scripting with the ovirt REST API > using the SDK or CLI. > > > If you had the VMware migration extra add-on you could have hosts move as > needed so they were not tied to any host either but we could set a startup > order and specify auto, manual so that once the host started the VMs were > brought up as specified no matter what host they were running on. > > I am running hosted-engine deployment with the Engine VM on the host. > > I set highly available on, did not pin to any host, and also set the > watchdog which should reset if they go down but I'm not sure that will start > them if the host comes up and the VMs are not running. I'll look at the CLI > first. > > It would be nice if oVirt added this feature as it's really required for > large installations and is a help for any size installation, even small > ones. > > > > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users >

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Restoring oVirt after hardware crash
by Morten A. Middelthon 08 Apr '16

08 Apr '16

Hi, the machine running my oVirt Engine administrator recently died on me. I have been able to get most of it back up and running again on a new virtual machine with CentOS 6.x in another virtual environment. The local postgresql database is running, and I can login via the web interface. All my VMs, storages, networks and hosts are visible, but marked as being offline/non responsive. Is there a way I can re-add or re-enable my existing hosts on this restored manager? with regards, -- Morten A. Middelthon Email: morten(a)flipp.net

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Network & local disk on same host, live storage migration
by Matthew Bohnsack 08 Apr '16

08 Apr '16

Hello. I've been doing some experimentation with oVirt 3.6 and CentOS 7.2 hosts, and I have a few high level questions, related to what I've seen in my testing: 1/ It seems that for a given host, it's impossible to have both a local storage domain and a shared storage domain such as NFS. Is this correct? If so, is adding this capability on the roadmap somewhere? I would really like to have the ability for a single host to simultaneously support both local and network disks. 2/ Does oVirt support any sort of live storage migration functionality? 2.A/ For example, say I have one host (host#1) with two separate NFS storage domains (NFS#1 and NFS#2). In this case, can a VM on host#1 associated with NFS#1 be live migrated to NFS#2 storage? Or can this sort of storage movement only be accomplished by a shutdown of the VM and an export/import/restart workflow? 2.B/ Is the scenario described in 2.A possible across two different hosts that share both NFS storage domains? That is, can a VM guest on host#1/NFS#1 be live migrated to host#2/NFS#2? 3/ Let's says that you setup a host (host#1) with a shared storage domain (NFS#1) and a second host (host#2) with a local storage domain (local#2). If you wanted to move a VM from host#1/NFS#1 to host#2/local#2, how would you most easily accomplish this? All I could come up with is: Add NFS export domain to host#1, turn VM on host#1 off, export VM, add NFS import domain to host#2, import VM, on host#2 onto local#2, turn VM on on host#2? Thanks for your help, -Matthew

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