December 2020 - Users - oVirt List Archives

"POSIX storage based vm live migration failed"
by Tarun Kushwaha 28 Dec '20

28 Dec '20

After upgrading cluster version to 4.5 VM live migration failed showing error due to storage I/O error and VM status is being changed running to Pause , lower cluster version same is working

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Re: New to oVirt - HE and Metric Store Question
by Strahil Nikolov 28 Dec '20

28 Dec '20

I can't recall the exact issue that was reported in the mailing list, but I remember that the user had to power off the engine and the VMs... the Devs can clearly indicate the risks of running the HostedEngine with other VMs on the same storage domain. Based on Red Hat's RHV documentation the following warning is clearly indicating some of the reasons: Creating additional data storage domains in the same data center as the self-hosted engine storage domain is highly recommended. If you deploy the self-hosted engine in a data center with only one active data storage domain, and that storage domain is corrupted, you will not be able to add new storage domains or remove the corrupted storage domain; you will have to redeploy the self-hosted engine. Another one from Red Hat's Self-Hosted Engine Recommendations: В понеделник, 28 декември 2020 г., 19:40:15 Гринуич+2, Nur Imam Febrianto <nur_imam(a)outlook.com> написа: What kind of situation is that ? If so, how can I migrate my hosted engine into another storage domain ? Regards, Nur Imam Febrianto From: Strahil Nikolov Sent: 29 December 2020 0:31 To: oVirt Users; Nur Imam Febrianto Subject: Re: [ovirt-users] New to oVirt - HE and Metric Store Question > 1. Right now we are using one SAN with 4 LUN (each mapped into 1 >specific volume) and configure the storage domain for each LUn (1 LUN = 1 >Storage Domain). Is this configuration are good ? One more, about Hosted >Engine, when we setup the cluster, it provision one storage domain, but >the storage domain is not exlusively used by Hosted Engine, we use it too >for other VM. Are this OK or it have a side impact ? Avoid using HostedEngine's storage domain for other VMs.You might get into situation that you want to avoid. Best Regards, Strahil Nikolov

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Cannot run yum, no internet connection on a oVirt node
by jenia.ivlev＠gmail.com 28 Dec '20

28 Dec '20

Hello. I need help setting up the networking on the "self hosted engine" VM. I can't run yum in the self-hosted engine [1], there seems not to be any internet connection. I get the error "couldn't resolve host: mirrors.fedoraproject.org. Same thing when I do cURL google.com for example. Also I can't ssh to this VM from my physical machine either. I get "connection refused". I can ping the "self-hosted engine" VM though. Here is the output of ip addr on the "self hosted engine" VM: 2. enp1s0: .... state UP link/ether 52.54.... 3. virbr0: ... state DOWN inet 192.168.122.1 Here is the ip addr output on the host machine: 3. virbr0: ... state UP inet 192.168.122.1 Can someone please help me setup networking on the "self hosted engine" VM. Thanks kindly. Happy holidays. [1] https://www.ovirt.org/documentation/installing_ovirt_as_a_self-hosted_engin…

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Re: New to oVirt - HE and Metric Store Question
by Strahil Nikolov 28 Dec '20

28 Dec '20

> 1. Right now we are using one SAN with 4 LUN (each mapped into 1 >specific volume) and configure the storage domain for each LUn (1 LUN = 1 >Storage Domain). Is this configuration are good ? One more, about Hosted >Engine, when we setup the cluster, it provision one storage domain, but >the storage domain is not exlusively used by Hosted Engine, we use it too >for other VM. Are this OK or it have a side impact ? Avoid using HostedEngine's storage domain for other VMs.You might get into situation that you want to avoid. Best Regards, Strahil Nikolov

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Moving VMs from 4.3.9 to 4.4.4
by Diggy Mc 28 Dec '20

28 Dec '20

What is the best way to move VMs from current 4.3.9 to a new 4.4.4. environment? The current environment is running oVirt 4.3.9 (started as 4.3.7). There is a single data domain using NFS on a single NAS. The future oVirt 4.4.4 environment will also have a single data domain using NFS on the same NAS as the current environment. What is the best way to move approximately 40 VMs from current 4.3.9 to a new 4.4.4. environment? Are there any caveats or considerations I need to take into account when moving the VMs? Your help, as always, is greatly appreciated.

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New to oVirt - HE and Metric Store Question
by Nur Imam Febrianto 28 Dec '20

28 Dec '20

Hi, We’re migrating our 10 physical host with 50 small VM to oVirt from VMware and so happy with its performance. There are two question that we want to ask : 1. Right now we are using one SAN with 4 LUN (each mapped into 1 specific volume) and configure the storage domain for each LUn (1 LUN = 1 Storage Domain). Is this configuration are good ? One more, about Hosted Engine, when we setup the cluster, it provision one storage domain, but the storage domain is not exlusively used by Hosted Engine, we use it too for other VM. Are this OK or it have a side impact ? 2. We’re kind of interested using Metric Store (Need performance metric history over the time), is it possible to deploy the Metric Store using smaller resources ? Our hardware is so small, we cant afford to use that lot of resources for the Metric Store. Thanks before.

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power management iLO5
by ozmen62＠hotmail.com 28 Dec '20

28 Dec '20

Hi, I've red mail list about IPMI fencing. But clould not find a solution. We have HP gen 10 servers. they have iLO5 and fencing does not work. In redhat there is a solution Issue No iLO5 fencing method available in RHV-manager Power Management via IPMILAN does not work on HPE Gen 10 systems Power Management via iLO4 does not work on HPE Gen 10 systems Resolution The IPMI interface has to be enabled in the security section of a iLO-5 on a HPE Gen 10 system in order to use the fence-agents iLO3, iLO4 or IPMILAN. A user with Login permissions and Operator level access for IPMI should be sufficient for fencing. Root Cause The default settings of iLO-5 on a HPE Gen 10 system have disabled IPMI access to the management controller. The fence agents for iLO-3 onward default to be using IPMI in order to communicate with the management controller. Therefore iLO3, iLO4 as well as IPMILAN fail to connect to a iLO-5 management controller. But, there is no IPMI option in power management. How can i enable power managemenet properly with iLO5 or IPMI? Thanks

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cinder backup fail
by ozmen62＠hotmail.com 28 Dec '20

28 Dec '20

Hi, After 4.4.4 upgrade , i've enabled grafana. Now, there is an error while backing up Backing up: Notifying engine - Files - DWH database 'ovirt_engine_history_20201223073120' - CINDERLIB database 'ovirt_cinderlib' Notifying engine FATAL: Database ovirt_cinderlib backup failed in log file, it says; pg_dump: error: connection to database "ovirt_cinderlib" failed: FATAL: Ident authentication failed for user "ovirt_cinderlib" could you help to fix it?

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Restore failed. Cannot connect to DWH database using existing credentials.
by Николаев Алексей 28 Dec '20

28 Dec '20

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VDSM Get Host Capabilities failed: Internal JSON-RPC error: {'reason': 'internal error: Duplicate key'}
by smuthyala＠helenoftroy.com 27 Dec '20

27 Dec '20

We have 3 hosts in cluster. Two of them got rebooted giving is this error "VDSM Get Host Capabilities failed: Internal JSON-RPC error: {'reason': 'internal error: Duplicate key'}" Currently running Oracle Linux Virtualization Manager Software Version:4.3.6.6-1.0.15.el7 on the Hosts.

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