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firewalld rules - snmp
by Riaan Timmerman 29 Mar '18

29 Mar '18

--_000_0C462889D648A54688D93207355E3247031D01B801NELEX01nelloc_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi I am running oVirt 4.2 and need to open the firewall (firewalld) to allow a= n external monitoring system to connect via snmp. Documentation is not exactly clear on how to do this? Regards Riaan --_000_0C462889D648A54688D93207355E3247031D01B801NELEX01nelloc_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micr= osoft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:= //www.w3.org/TR/REC-html40"> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"= > <meta name=3D"Generator" content=3D"Microsoft Word 15 (filtered medium)"> <style></style> </head> <body lang=3D"EN-NZ" link=3D"#0563C1" vlink=3D"#954F72"> <div class=3D"WordSection1"> Hi<= o:p></o:p> <o:= p> </o:p> I a= m running oVirt 4.2 and need to open the firewall (firewalld) to allow an e= xternal monitoring system to connect via snmp.<o:p></o:p> <o:= p> </o:p> Doc= umentation is not exactly clear on how to do this?<o:p></o:p> <o:= p> </o:p> Regards<o:p></o:p> <o:p> </o:p> Riaan<o:p></o:p> </div> </body> </html> --_000_0C462889D648A54688D93207355E3247031D01B801NELEX01nelloc_--

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Query on VM Clone
by Hari Prasanth Loganathan 29 Mar '18

29 Mar '18

Hi Team, 1) I perform the VM clone using the following API api/vms/{vmId}/clone 2) The above API is returning the job id 3) Using the job Id, we continuously query the oVirt to get the status of the clone operation. /api/jobs/${vmCloneJobId} We are able to successfully get the status of the clone operation. But the problem is, we are not able to identify the newly created VM (created using clone). AFAIK, The only way to get the newly created VM is to get all the VM list from oVirt. Is there an easy way to identify the newly created VM using the jobId? Thanks, Hari -- DISCLAIMER The information in this e-mail is confidential and may be subject to legal privilege. It is intended solely for the addressee. Access to this e-mail by anyone else is unauthorized. If you have received this communication in error, please address with the subject heading "Received in error," send to it(a)msystechnologies.com, then delete the e-mail and destroy any copies of it. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. The views, opinions, conclusions and other information expressed in this electronic mail and any attachments are not given or endorsed by the company unless otherwise indicated by an authorized representative independent of this message. MSys cannot guarantee that e-mail communications are secure or error-free, as information could be intercepted, corrupted, amended, lost, destroyed, arrive late or incomplete, or contain viruses, though all reasonable precautions have been taken to ensure no viruses are present in this e-mail. As our company cannot accept responsibility for any loss or damage arising from the use of this e-mail or attachments we recommend that you subject these to your virus checking procedures prior to use

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ILO2 Fencing
by TomK 29 Mar '18

29 Mar '18

Hey Guy's, I've tested my ILO2 fence from the ovirt engine CLI and that works: fence_ilo2 -a 192.168.0.37 -l <USER> --password="<SECRET>" --ssl-insecure --tls1.0 -v -o status The UI gives me: Test failed: Failed to run fence status-check on host 'ph-host01.my.dom'. No other host was available to serve as proxy for the operation. Going to add a second host in a bit but anyway to get this working with just one host? I'm just adding the one host to oVirt for some POC we are doing atm but the UI forces me to adjust Power Management settings before proceeding. Also: 2018-03-28 02:04:15,183-04 WARN [org.ovirt.engine.core.bll.network.NetworkConfigurator] (EE-ManagedThreadFactory-engine-Thread-335) [2d691be9] Failed to find a valid interface for the management network of host ph-host01.my.dom. If the interface br0 is a bridge, it should be torn-down manually. 2018-03-28 02:04:15,184-04 ERROR [org.ovirt.engine.core.bll.hostdeploy.InstallVdsInternalCommand] (EE-ManagedThreadFactory-engine-Thread-335) [2d691be9] Exception: org.ovirt.engine.core.bll.network.NetworkConfigurator$NetworkConfiguratorException: Interface br0 is invalid for management network I've these defined as such but not clear what it is expecting: [root@ph-host01 ~]# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond0 state UP qlen 1000 link/ether 78:e7:d1:8c:b1:ba brd ff:ff:ff:ff:ff:ff 3: eth1: <NO-CARRIER,BROADCAST,MULTICAST,SLAVE,UP> mtu 1500 qdisc mq master bond0 state DOWN qlen 1000 link/ether 78:e7:d1:8c:b1:ba brd ff:ff:ff:ff:ff:ff 4: eth2: <NO-CARRIER,BROADCAST,MULTICAST,SLAVE,UP> mtu 1500 qdisc mq master bond0 state DOWN qlen 1000 link/ether 78:e7:d1:8c:b1:ba brd ff:ff:ff:ff:ff:ff 5: eth3: <NO-CARRIER,BROADCAST,MULTICAST,SLAVE,UP> mtu 1500 qdisc mq master bond0 state DOWN qlen 1000 link/ether 78:e7:d1:8c:b1:ba brd ff:ff:ff:ff:ff:ff 21: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue master br0 state UP qlen 1000 link/ether 78:e7:d1:8c:b1:ba brd ff:ff:ff:ff:ff:ff inet6 fe80::7ae7:d1ff:fe8c:b1ba/64 scope link valid_lft forever preferred_lft forever 23: ;vdsmdummy;: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000 link/ether fe:69:c7:50:0d:dd brd ff:ff:ff:ff:ff:ff 24: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP qlen 1000 link/ether 78:e7:d1:8c:b1:ba brd ff:ff:ff:ff:ff:ff inet 192.168.0.39/23 brd 192.168.1.255 scope global br0 valid_lft forever preferred_lft forever inet6 fe80::7ae7:d1ff:fe8c:b1ba/64 scope link valid_lft forever preferred_lft forever [root@ph-host01 ~]# cd /etc/sysconfig/network-scripts/ [root@ph-host01 network-scripts]# cat ifcfg-br0 DEVICE=br0 TYPE=Bridge BOOTPROTO=none IPADDR=192.168.0.39 NETMASK=255.255.254.0 GATEWAY=192.168.0.1 ONBOOT=yes DELAY=0 USERCTL=no DEFROUTE=yes NM_CONTROLLED=no DOMAIN="my.dom nix.my.dom" SEARCH="my.dom nix.my.dom" HOSTNAME=ph-host01.my.dom DNS1=192.168.0.224 DNS2=192.168.0.44 DNS3=192.168.0.45 ZONE=public [root@ph-host01 network-scripts]# cat ifcfg-bond0 DEVICE=bond0 ONBOOT=yes BOOTPROTO=none USERCTL=no NM_CONTROLLED=no BONDING_OPTS="miimon=100 mode=2" BRIDGE=br0 # # # IPADDR=192.168.0.39 # NETMASK=255.255.254.0 # GATEWAY=192.168.0.1 # DNS1=192.168.0.1 [root@ph-host01 network-scripts]# -- Cheers, Tom K. ------------------------------------------------------------------------------------- Living on earth is expensive, but it includes a free trip around the sun.

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Any monitoring tool provided?
by Terry hey 29 Mar '18

29 Mar '18

Dear all, Now, we can just read how many storage used, cpu usage on ovirt dashboard. But is there any monitoring tool for monitoring virtual machine time to time? If yes, could you guys give me the procedure? Regards Terry

10 20

Cache to NFS
by Marcelo Leandro 28 Mar '18

28 Mar '18

Hello, I have 1 server configured with RAID 6 36TB HDD, I would like improve the performance, I read about lvmcache with SSD and would like know if its indicated to configure with NFS and how can calculete the size necessary to ssd. Very Thanks.

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[ANN] oVirt 4.2.2 GA Release is now available
by Lev Veyde 28 Mar '18

28 Mar '18

The oVirt Project is pleased to announce the availability of the oVirt 4.2.2 GA release, as of March 28th, 2018. This update is a GA release of the second in a series of stabilization updates to the 4.2 series. This release is available now for: * Red Hat Enterprise Linux 7.4 or later * CentOS Linux (or similar) 7.4 or later This release supports Hypervisor Hosts running: * Red Hat Enterprise Linux 7.4 or later * CentOS Linux (or similar) 7.4 or later * oVirt Node 4.2 See the release notes [1] for installation / upgrade instructions and a list of new features and bugs fixed. Notes: - oVirt Appliance is available - oVirt Node is available [2] Additional Resources: * Read more about the oVirt 4.2.2 release highlights: http://www.ovirt.org/release/4. <http://www.ovirt.org/release/4.2.2/>2 <http://www.ovirt.org/release/4.2.2/>. <http://www.ovirt.org/release/4.2.2/> 2 <http://www.ovirt.org/release/4.2.2/>/ <http://www.ovirt.org/release/4.2.2/> * Get more oVirt Project updates on Twitter: https://twitter.com/ovirt * Check out the latest project news on the oVirt blog: http://www.ovirt.org/blog/ [1] http://www.ovirt.org/release/4. <http://www.ovirt.org/release/4.2.2/>2 <http://www.ovirt.org/release/4.2.2/>. <http://www.ovirt.org/release/4.2.2/> 2 <http://www.ovirt.org/release/4.2.2/>/ <http://www.ovirt.org/release/4.2.2/> [2] http://resources.ovirt.org/pub/ovirt-4. <http://resources.ovirt.org/pub/ovirt-4.2/iso/>2 <http://resources.ovirt.org/pub/ovirt-4.2/iso/>/iso/ <http://resources.ovirt.org/pub/ovirt-4.2/iso/> -- Lev Veyde Software Engineer, RHCE | RHCVA | MCITP Red Hat Israel <https://www.redhat.com> lev(a)redhat.com | lveyde(a)redhat.com <https://red.ht/sig> TRIED. TESTED. TRUSTED. <https://redhat.com/trusted>

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Deploy Self-Hosted Engine in a Active Host
by FERNANDO FREDIANI 28 Mar '18

28 Mar '18

Hello As I mentioned in another thread I am migrating a 'Bare-metal' oVirt-Engine to a Self-Hosted Engine. For that I am following this documentation: https://ovirt.org/documentation/self-hosted/chap-Migrating_from_Bare_Metal_… However I think called me attention and I wanted to clarity: Must the Host that will deploy the Self-Hosted Engine be in Maintenance mode and therefore with no other VMs running ? I have a Node which is currently part of a Cluster and wish to deploy the Self-Hosted Engine to it. Must I have to put it into Maintenance mode first or can I just run the 'hosted-engine --deploy'. Note: this Self-Hosted Engine will manage the existing cluster where this Node exists. Guess that is not an issue at all and part of what Self-Hosted Engine is intended to. Thanks Fernando

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oVirt Node Resize tool for local storage
by Matt Simonsen 28 Mar '18

28 Mar '18

Hello, We have a development box with local storage, running ovirt Node 4.1 It appears that using the admin interface on port 9090 I can resize a live partition to a smaller size. Our storage is a seperate LVM partition, ext4 formated. My question is, both theoretically and practically, if anyone has feedback on: #1: Does this work (ie- will it shrink the filesystem then shrink the LV)? #2: May we do this with VMs running? Thanks Matt

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Re: [ovirt-users] Snapshot of the Self-Hosted Engine
by FERNANDO FREDIANI 28 Mar '18

28 Mar '18

Hello Sven and all. Yes storage does have the snapshot function and could be possibility be used, but I was wondering a even easier way through the oVirt Node CLI or something similar that can use the qcow2 image snapshot to do that with the Self-Hosted Engine in Global Maintenance. I used to run the oVirt Engine in a Libvirt KVM Virtual Machine in a separate Host and it has always been extremely handy to have this feature. There has been times where the upgrade was not successfully and just turning off the VM, starting it from snapshot saved my day. Regards Fernando 2018-03-27 14:14 GMT-03:00 Sven Achtelik <Sven.Achtelik(a)eps.aero>: > Hi Fernando, > > > > depending on where you’re having your storage you could set everything to > global maintenance, stop the vm and copy the disk image. Or if your storage > systeme is able to do snapshots you could use that function once the engine > is stopped. It’s the easiest way I can think of right now. What kind of > storage are you using ? > > > > Sven > > > > *Von:* users-bounces(a)ovirt.org [mailto:users-bounces@ovirt.org] *Im > Auftrag von *FERNANDO FREDIANI > *Gesendet:* Dienstag, 27. März 2018 15:24 > *An:* users > *Betreff:* [ovirt-users] Snapshot of the Self-Hosted Engine > > > > Hello > > Is it possible to snapshot the Self-Hosted Engine before an Upgrade ? If > so how ? > > Thanks > > Fernando >

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Snapshot of the Self-Hosted Engine
by FERNANDO FREDIANI 28 Mar '18

28 Mar '18

Hello Is it possible to snapshot the Self-Hosted Engine before an Upgrade ? If so how ? Thanks Fernando

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