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SHE with multipath on multiple iSCSI targets
by Francesco Castellano 12 Nov '19

12 Nov '19

Dear sirs, we're trying to install an SHE oVirt 4.3.6 using an iSCSI SAN that provides us multiple targets (8) over 4 different portals. Following 5.1 of "RHV installation using Cockpit" we set up iscsi and multipath ahead with a 90GB LUN to be used for the engine VM. Unfortunately, even if the node OS sees correctly the LUN, e.g.: # multipath -ll > 36000d31004235a000000000000000018 dm-34 COMPELNT,Compellent Vol > size=90G features='1 queue_if_no_path' hwhandler='0' wp=rw > `-+- policy='service-time 0' prio=1 status=active > |- 16:0:0:3 sdu 65:64 active ready running > |- 24:0:0:3 sdt 65:48 active ready running > |- 17:0:0:3 sds 65:32 active ready running > |- 25:0:0:3 sdv 65:80 active ready running > |- 15:0:0:3 sdx 65:112 active ready running > |- 29:0:0:3 sdw 65:96 active ready running > |- 28:0:0:3 sdy 65:128 active ready running > |- 20:0:0:3 sdz 65:144 active ready running > `- 21:0:0:3 sdaa 65:160 active ready running # lsscsi -ist | grep 36000d31004235a000000000000000018 > [15:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235a43,t,0x0 > /dev/sdx 36000d31004235a000000000000000018 96.6GB > [16:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235a43,t,0x0 > /dev/sdu 36000d31004235a000000000000000018 96.6GB > [17:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235a44,t,0x0 > /dev/sds 36000d31004235a000000000000000018 96.6GB > [20:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235243,t,0x0 > /dev/sdz 36000d31004235a000000000000000018 96.6GB > [21:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235244,t,0x0 > /dev/sdaa 36000d31004235a000000000000000018 96.6GB > [24:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235a48,t,0x0 > /dev/sdt 36000d31004235a000000000000000018 96.6GB > [25:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235a49,t,0x0 > /dev/sdv 36000d31004235a000000000000000018 96.6GB > [28:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235248,t,0x0 > /dev/sdy 36000d31004235a000000000000000018 96.6GB > [29:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235249,t,0x0 > /dev/sdw 36000d31004235a000000000000000018 96.6GB > # iscsiadm -m session | grep -E '[a2]4[3489]' | sort -k 3.8 > tcp: [1] 10.201.204.10:3260,0 iqn.2002-03.com.compellent:5000d31004235a43 > (non-flash) > tcp: [2] 10.201.204.10:3260,0 iqn.2002-03.com.compellent:5000d31004235a43 > (non-flash) > tcp: [3] 10.201.204.10:3260,0 iqn.2002-03.com.compellent:5000d31004235a44 > (non-flash) > tcp: [6] 10.201.204.20:3260,0 iqn.2002-03.com.compellent:5000d31004235243 > (non-flash) > tcp: [7] 10.201.204.20:3260,0 iqn.2002-03.com.compellent:5000d31004235244 > (non-flash) > tcp: [10] 10.201.205.10:3260,0 > iqn.2002-03.com.compellent:5000d31004235a48 (non-flash) > tcp: [11] 10.201.205.10:3260,0 > iqn.2002-03.com.compellent:5000d31004235a49 (non-flash) > tcp: [14] 10.201.205.20:3260,0 > iqn.2002-03.com.compellent:5000d31004235248 (non-flash) > tcp: [15] 10.201.205.20:3260,0 > iqn.2002-03.com.compellent:5000d31004235249 (non-flash) > during the engine deploy neither via cockpit nor with "hosted-engine --deploy" it was able to see any LUN. Having a lot of portals (4) and each having 4 targets (two of which being independents path to the LUN), we chose a portal to discover, it proposed us 4 targets, and we had to choose a target to log in, but in the end, no LUN was proposed. After a few attempts, we found that, if we logged out from any targets (and clean up the open-iscsi database), after the login in an appropriate target, the installer proposed us the LUN, and we successfully deployed the SHE. But unfortunately, such an installation doesn't track effectively all the 8 paths over 8 different targets, but just the one chosen during the installation (this is different, for example, with respect to other LUNs for data domains that we attached afterwards). Thus we miss the HA we aimed to for the engine data domain. I said this, because when I ask for /ovirt-engine/api/storagedomains, whilst a second LUN has 8 children with different targets below storage_domain/${another data domain}/storage/volume_group/logical_units/logical_unit/, for the hosted_storage I just have one. My questions are: a) is there a way to add the other targets/paths consistently (even through the REST interface)? b) is there another installation, or recovery, procedure to get the engine data domain in high availability on our iSCSI topology? Thank you so much for your suggestions, they are really appreciated, Best regards, Francesco Castellano

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Quick question regarding FQDN
by Christian Reiss 12 Nov '19

12 Nov '19

Hey folks, for production use quality it is recommended to have backend (storage) and front end seperated. Let' assume: - 85.0.0.0/24 public IP block - 10.100.0.0/24 private IPs for DC internal usage - 10.200.0.0/24 private IPs for storage only LAN and running, as per recommendation 3 nodes: - node01: - fqdn: node01.dc-example.com - fqdn storage: node02.storage.example.com - no public IP - 10.100.0.1 primary IP - 10.200.0.1 storage IP - node02: - fqdn: node02.dc-example.com - fqdn storage: node02.storage.example.com - no public IP - 10.100.0.2 primary IP - 10.200.0.2 storage IP - node03: - fqdn: node03.dc-example.com - fqdn storage: node02.storage.example.com - no public IP - 10.100.0.3 primary IP - 10.200.0.3 storage IP The storage network is its own physical network with 10gig that only connects those three servers. How can I specify which IP to use for storage, which for frontend traffic? I am assuming this as the controller and all admins should be able to reach the nodes via frontend, which is not the storage one. Okay, I am lost. Whats the real solution here? Or is "frontend" no-ip, just VM traffic and "backend" is the 10gig storage "Only" where all the FQDN reside? Thanks for clarification, -Chris. -- Christian Reiss - email(a)christian-reiss.de /"\ ASCII Ribbon support(a)alpha-labs.net \ / Campaign X against HTML WEB alpha-labs.net / \ in eMails GPG Retrieval https://gpg.christian-reiss.de GPG ID ABCD43C5, 0x44E29126ABCD43C5 GPG fingerprint = 9549 F537 2596 86BA 733C A4ED 44E2 9126 ABCD 43C5 "It's better to reign in hell than to serve in heaven.", John Milton, Paradise lost.

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I want to configure an web server
by Istiaque Islam 12 Nov '19

12 Nov '19

Hi there, I have installed oVirt on a server and related ISO and Data domains. I can create Virtual Machines and that machine get access to internet to download things. What I want to do now : 1. create an web server using centos and access that webserver from anywhere with internet connection 2. Then I shall configure a domain name for that webserver hosted in oVirt Virtual Machine. My Question : How to configure the virtual machine in oVirt so that when I enter my specified domain name/IP it will hit that particular virtual machine? As it is a virtual machine, it will not get any public IP, so how should i configure the virtual machine set up so that it can be used as an web server. Thanks in advance. -- With Regards, *Mohammed Istiaque Islam* *Contact no *: *+8801745723593* Email : jisan6347(a)gmail.com LinkedIn Profile : Profile_Linkedin_Istiaque <http://www.linkedin.com/in/mohammed-istiaque-islam-59541866>

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Re: When I log in ovirt-engine , it show "Unable to log in because the user account is disabled or locked. Contact the system administrator."
by wangyu13476969128＠126.com 12 Nov '19

12 Nov '19

It's OK now. Thank you very much !

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Re: When I log in ovirt-engine , it show "Unable to log in because the user account is disabled or locked. Contact the system administrator."
by Strahil 11 Nov '19

11 Nov '19

Login via ssh on the engine and unlock your user via ovirt-aaa-jdbc-tool tool. Best Regards, Strahil NikolovOn Nov 11, 2019 11:05, wangyu13476969128(a)126.com wrote: > > When I log in ovirt-engine，the username and password is correct. > But the error show "Unable to log in because the user account is disabled or locked. Contact the system administrator." > How can I solve this problem ? > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ > oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ > List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/TGLVOMEDV2TGK…

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Re: After importing the ovirt-engine 4.3.5 backup file into ovirt-engine 4.3.6, will the information of the ovirt-engine 4.3.6 management interface be the same as ovirt-engine 4.3.5?
by Yedidyah Bar David 11 Nov '19

11 Nov '19

On Mon, Nov 11, 2019 at 12:26 PM Staniforth, Paul <P.Staniforth(a)leedsbeckett.ac.uk> wrote: > > > Thanks, > I should have been clearer, what I meant was could you install 4.3.5 and restore to that, then run engine-setup --offline? Of course, this should work. The only point is that once 4.3.6 is released, it's not that easy to install 4.3.5, because yum generally tries to install the latest versions of stuff - and in theory, there might be issues with installing stuff from 4.3.6 repo with a 4.3.5 engine, so if you want an exact replicate of a 4.3.5 engine, you have to check all relevant packages, not just the engine. > > Regards, > Paul S. > ________________________________ > From: Yedidyah Bar David <didi(a)redhat.com> > Sent: 11 November 2019 10:19 > To: Staniforth, Paul <P.Staniforth(a)leedsbeckett.ac.uk> > Cc: wangyu13476969128(a)126.com <wangyu13476969128(a)126.com>; users <users(a)ovirt.org> > Subject: Re: [ovirt-users] Re: After importing the ovirt-engine 4.3.5 backup file into ovirt-engine 4.3.6, will the information of the ovirt-engine 4.3.6 management interface be the same as ovirt-engine 4.3.5? > > On Mon, Nov 11, 2019 at 12:12 PM Staniforth, Paul > <P.Staniforth(a)leedsbeckett.ac.uk> wrote: > > > > I haven't tried it but doesn't engine-setup --offline stop it upgrading minor releases. > > It prevents only the packager component. > > If you already have 4.3.6 installed, which was the original question, > then engine-setup will still update the database schema. And if it > didn't, the 4.3.6 engine might fail working correctly with a 3.4.5.5 > database. In particular: > > The documentation for engine-backup always stated that you must run > engine-setup immediately after restore. But at some points in time, > and under certain conditions, this was actually optional. You could > have done a restore, and immediately start the engine, and it would > have worked. But this isn't the case if your restored db is older than > the installed engine. Then, you must run engine-setup before starting > the engine. > > Best regards, > > > > > Regards, > > Paul S. > > ________________________________ > > From: Yedidyah Bar David <didi(a)redhat.com> > > Sent: 11 November 2019 07:57 > > To: wangyu13476969128(a)126.com <wangyu13476969128(a)126.com> > > Cc: users <users(a)ovirt.org> > > Subject: [ovirt-users] Re: After importing the ovirt-engine 4.3.5 backup file into ovirt-engine 4.3.6, will the information of the ovirt-engine 4.3.6 management interface be the same as ovirt-engine 4.3.5? > > > > On Tue, Oct 29, 2019 at 11:55 AM <wangyu13476969128(a)126.com> wrote: > > > > > > The current version of ovirt-engine in production environment is 4.3.5.5. > > > In order to prevent the ovirt-engine machine from being down, the management interface cannot be used, according to the relevant link: > > > https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fovirt.org… > > > > > > I backed it up using the command: > > > engine-backup --scope=all --mode=backup --file=file_name --log=log_file_name > > > > > > I have prepared another machine as a spare machine. Once the ovirt-engine is down in the production environment, the standby machine can be UP and the standby machine can manage the ovirt-nodes. > > > > > > According to the relevant links: > > > https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fovirt.org… > > > > > > The ovirt-engine is installed on the standby machine. > > > > > > After I have executed these three commands: > > > 1. yum install https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fresources.… > > > > > > 2. yum update > > > > > > 3. yum install ovirt-engine > > > > > > I found that the ovirt-engine version of the standby machine is 4.3.6 > > > > > > So my question is: > > > > > > 1. The ovirt-engine version of the standby machine is 4.3.6, and the production environment ovirt-engine version is 4.3.5.5, which command is used on the production environment ovirt-engine machine: > > > engine-backup --scope=all --mode=backup --file=file_name --log=log_file_name > > > > > > Files obtained after using the backup command on the ovirt-engine in the production environment are restored using these two files under the standby computer. Will the information on the ovirt-engine management interface of the standby computer be consistent with the ovirt-engine of the production environment (eg data center, host, virtual machine, etc.)? > > > > In principle it should be ok. After you restore with above command, > > you should run 'engine-setup', and this will update your restored > > database schema to 4.3.6. > > This is not routinely tested explicitly, though, but I expect that > > people often do this, perhaps even unknowingly, when they restore from > > a backup taken with a somewhat-old version. > > > > > > > > 2. Can the ovirt-engine of the standby machine be installed with version 4.3.5.5? How do I need to modify the following three commands to get the backup machine to install the version 4.3.5.5? > > > 1. yum install https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fresources.… > > > 2. yum update > > > 3. yum install ovirt-engine > > > > In theory you can change last one to 'yum install > > ovirt-engine-4.3.5.5'. I didn't try that, and you are quite likely to > > run into complex dependencies you'll have to satisfy by yourself. > > > > I think the best solution for you, if you care about active and > > standby to be identical, is to upgrade your active one as well, and > > keep them same version going forward. > > > > I'd also like to note that maintaining a standby engine and using it > > the way you intend to, is not in the scope of oVirt. People do similar > > things, but have to manually work around this and be careful. One very > > important issue is that if for any reason you allow both of them to be > > up at the same time, and manage the same hosts, they will not know > > about each other, and you'll see lots of confusion and errors. > > > > You might also want to check: > > > > 1. Hosted-engine setup with more than one host as hosted-engine host. > > There, you only have a single engine vm, but it can run on any of your > > hosts. You still have a single VM disk/image, and if that's corrupted, > > you have no HA and have to somehow reinstall/restore/etc. > > > > 2. https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ovirt… > > > > Best regards, > > -- > > Didi > > _______________________________________________ > > Users mailing list -- users(a)ovirt.org > > To unsubscribe send an email to users-leave(a)ovirt.org > > Privacy Statement: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ovirt… > > oVirt Code of Conduct: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ovirt… > > List Archives: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.ovi… > > To view the terms under which this email is distributed, please go to:- > > http://leedsbeckett.ac.uk/disclaimer/email/ > > > > -- > Didi > > To view the terms under which this email is distributed, please go to:- > http://leedsbeckett.ac.uk/disclaimer/email/ -- Didi

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Guest Agent Warning
by ccesario＠blueit.com.br 11 Nov '19

11 Nov '19

Hello, Does someone has idea about fix/remove the warning message "The latest guest agent needs to be installed and running on the guest" from my VMs ? I already has the qemu agent running and updated on VMS. I already tried restart the VM and HOST but the warning persist. Any tip? My Env. ====== https://pasteboard.co/IDsJZE1.png Warning message ============== https://pasteboard.co/IDsLcNS.png Qemu agent ========== https://pasteboard.co/IDsMmdPp.png Best regards Carlos

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Re: After importing the ovirt-engine 4.3.5 backup file into ovirt-engine 4.3.6, will the information of the ovirt-engine 4.3.6 management interface be the same as ovirt-engine 4.3.5?
by Yedidyah Bar David 11 Nov '19

11 Nov '19

On Mon, Nov 11, 2019 at 12:12 PM Staniforth, Paul <P.Staniforth(a)leedsbeckett.ac.uk> wrote: > > I haven't tried it but doesn't engine-setup --offline stop it upgrading minor releases. It prevents only the packager component. If you already have 4.3.6 installed, which was the original question, then engine-setup will still update the database schema. And if it didn't, the 4.3.6 engine might fail working correctly with a 3.4.5.5 database. In particular: The documentation for engine-backup always stated that you must run engine-setup immediately after restore. But at some points in time, and under certain conditions, this was actually optional. You could have done a restore, and immediately start the engine, and it would have worked. But this isn't the case if your restored db is older than the installed engine. Then, you must run engine-setup before starting the engine. Best regards, > > Regards, > Paul S. > ________________________________ > From: Yedidyah Bar David <didi(a)redhat.com> > Sent: 11 November 2019 07:57 > To: wangyu13476969128(a)126.com <wangyu13476969128(a)126.com> > Cc: users <users(a)ovirt.org> > Subject: [ovirt-users] Re: After importing the ovirt-engine 4.3.5 backup file into ovirt-engine 4.3.6, will the information of the ovirt-engine 4.3.6 management interface be the same as ovirt-engine 4.3.5? > > On Tue, Oct 29, 2019 at 11:55 AM <wangyu13476969128(a)126.com> wrote: > > > > The current version of ovirt-engine in production environment is 4.3.5.5. > > In order to prevent the ovirt-engine machine from being down, the management interface cannot be used, according to the relevant link: > > https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fovirt.org… > > > > I backed it up using the command: > > engine-backup --scope=all --mode=backup --file=file_name --log=log_file_name > > > > I have prepared another machine as a spare machine. Once the ovirt-engine is down in the production environment, the standby machine can be UP and the standby machine can manage the ovirt-nodes. > > > > According to the relevant links: > > https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fovirt.org… > > > > The ovirt-engine is installed on the standby machine. > > > > After I have executed these three commands: > > 1. yum install https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fresources.… > > > > 2. yum update > > > > 3. yum install ovirt-engine > > > > I found that the ovirt-engine version of the standby machine is 4.3.6 > > > > So my question is: > > > > 1. The ovirt-engine version of the standby machine is 4.3.6, and the production environment ovirt-engine version is 4.3.5.5, which command is used on the production environment ovirt-engine machine: > > engine-backup --scope=all --mode=backup --file=file_name --log=log_file_name > > > > Files obtained after using the backup command on the ovirt-engine in the production environment are restored using these two files under the standby computer. Will the information on the ovirt-engine management interface of the standby computer be consistent with the ovirt-engine of the production environment (eg data center, host, virtual machine, etc.)? > > In principle it should be ok. After you restore with above command, > you should run 'engine-setup', and this will update your restored > database schema to 4.3.6. > This is not routinely tested explicitly, though, but I expect that > people often do this, perhaps even unknowingly, when they restore from > a backup taken with a somewhat-old version. > > > > > 2. Can the ovirt-engine of the standby machine be installed with version 4.3.5.5? How do I need to modify the following three commands to get the backup machine to install the version 4.3.5.5? > > 1. yum install https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fresources.… > > 2. yum update > > 3. yum install ovirt-engine > > In theory you can change last one to 'yum install > ovirt-engine-4.3.5.5'. I didn't try that, and you are quite likely to > run into complex dependencies you'll have to satisfy by yourself. > > I think the best solution for you, if you care about active and > standby to be identical, is to upgrade your active one as well, and > keep them same version going forward. > > I'd also like to note that maintaining a standby engine and using it > the way you intend to, is not in the scope of oVirt. People do similar > things, but have to manually work around this and be careful. One very > important issue is that if for any reason you allow both of them to be > up at the same time, and manage the same hosts, they will not know > about each other, and you'll see lots of confusion and errors. > > You might also want to check: > > 1. Hosted-engine setup with more than one host as hosted-engine host. > There, you only have a single engine vm, but it can run on any of your > hosts. You still have a single VM disk/image, and if that's corrupted, > you have no HA and have to somehow reinstall/restore/etc. > > 2. https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ovirt… > > Best regards, > -- > Didi > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ovirt… > oVirt Code of Conduct: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ovirt… > List Archives: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.ovi… > To view the terms under which this email is distributed, please go to:- > http://leedsbeckett.ac.uk/disclaimer/email/ -- Didi

2 1

Supporting larger than 8TiB Lun's iSCSI RHV/oVirt
by Green, Jacob Allen /C 11 Nov '19

11 Nov '19

I have a question regarding the information in the following screenshot. According to https://access.redhat.com/articles/906543 there is an 8TiB limit I assume this is per LUN? Also if I want to go past 8TiB per LUN is there some configuration I need to edit somewhere? And is there a problem with going past 8TiB per LUN? I think it more manageable to simply increase LUN sizes if you have the storage, instead of adding additional LUN’s to your storage domain, however I may not fully understand the problems with increasing LUN sizes. Thank you. [cid:image001.png@01D5948E.D0101740] Jacob.

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After importing the ovirt-engine 4.3.5 backup file into ovirt-engine 4.3.6, will the information of the ovirt-engine 4.3.6 management interface be the same as ovirt-engine 4.3.5?
by wangyu13476969128＠126.com 11 Nov '19

11 Nov '19

The current version of ovirt-engine in production environment is 4.3.5.5. In order to prevent the ovirt-engine machine from being down, the management interface cannot be used, according to the relevant link: https://ovirt.org/documentation/admin-guide/chap-Backups_and_Migration.html I backed it up using the command: engine-backup --scope=all --mode=backup --file=file_name --log=log_file_name I have prepared another machine as a spare machine. Once the ovirt-engine is down in the production environment, the standby machine can be UP and the standby machine can manage the ovirt-nodes. According to the relevant links: https://ovirt.org/documentation/install-guide/chap-Installing_oVirt.html The ovirt-engine is installed on the standby machine. After I have executed these three commands: 1. yum install http://resources.ovirt.org/pub/yum-repo/ovirt-release43.rpm 2. yum update 3. yum install ovirt-engine I found that the ovirt-engine version of the standby machine is 4.3.6 So my question is: 1. The ovirt-engine version of the standby machine is 4.3.6, and the production environment ovirt-engine version is 4.3.5.5, which command is used on the production environment ovirt-engine machine: engine-backup --scope=all --mode=backup --file=file_name --log=log_file_name Files obtained after using the backup command on the ovirt-engine in the production environment are restored using these two files under the standby computer. Will the information on the ovirt-engine management interface of the standby computer be consistent with the ovirt-engine of the production environment (eg data center, host, virtual machine, etc.)? 2. Can the ovirt-engine of the standby machine be installed with version 4.3.5.5? How do I need to modify the following three commands to get the backup machine to install the version 4.3.5.5? 1. yum install http://resources.ovirt.org/pub/yum-repo/ovirt-release43.rpm 2. yum update 3. yum install ovirt-engine

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