[ovirt-users] Re: Q: Hybrid GlusterFS / local storage setup?

2020-10-14 Thread Gilboa Davara
Hello Nir, Thanks for the prompt answer. On Wed, Oct 14, 2020 at 1:02 PM Nir Soffer wrote: > > GlusterFS? > Yep, GlusterFS. Sorry, wrong abbreviation on my end.. > > > This will not be fast as local device passed-through to the vm > It will also be problematic, since all hosts will mount,

[ovirt-users] Re: Number of data bricks per oVirt HCI host

2020-10-14 Thread C Williams
Strahil, Please clarify what are the disk groups that you are referring to? Also, Regarding your statement "In JBOD mode, Red Hat support only 'replica 3' volumes." does this also mean "replica 3" variants ex. "distributed-replicate" Thank You For Your Help ! On Wed, Oct 14, 2020 at 7:34 AM C

[ovirt-users] Re: Q: Hybrid GlusterFS / local storage setup?

2020-10-14 Thread Nir Soffer
On Wed, Oct 14, 2020 at 1:29 PM Strahil Nikolov via Users wrote: > > Hi Gilboa, > > I think that storage domains need to be accessible from all nodes in the > cluster - and as yours will be using local storage and yet be in a 2-node > cluster that will be hard. > > My guess is that you can try

[ovirt-users] Re: Latest ManagedBlockDevice documentation

2020-10-14 Thread Michael Thomas
Hi Benny, You are correct, I tried attaching to a running VM (which failed), then tried booting a new VM using this disk (which also failed). I'll use the workaround in the bug report going forward. I'll just recreate the storage domain, since at this point I have nothing in it to lose.

[ovirt-users] Ovirt Node 4.4.2 install Odroid-H2 64GB eMMC

2020-10-14 Thread franklin . shearer
Hi All, I'm trying to install node 4.4.2 on an eMMC card, but when I get to the storage configuration of the installer, it doesn't save the settings (which is automatic configuration) I have chosen and displays failed to save storage configuration. I have deleted all partitions on the card

[ovirt-users] Re: Latest ManagedBlockDevice documentation

2020-10-14 Thread Benny Zlotnik
sorry, accidentally hit send prematurely, the database table is driver_options, the options are json under driver_options On Wed, Oct 14, 2020 at 5:32 PM Benny Zlotnik wrote: > > Did you attempt to start a VM with this disk and it failed, or you > didn't try at all? If it's the latter then the

[ovirt-users] Re: Latest ManagedBlockDevice documentation

2020-10-14 Thread Benny Zlotnik
Did you attempt to start a VM with this disk and it failed, or you didn't try at all? If it's the latter then the error is strange... If it's the former there is a known issue with multipath at the moment, see[1] for a workaround, since you might have issues with detaching volumes which later,

[ovirt-users] Re: Latest ManagedBlockDevice documentation

2020-10-14 Thread Michael Thomas
On 10/14/20 3:30 AM, Benny Zlotnik wrote: Jeff is right, it's a limitation of kernel rbd, the recommendation is to add `rbd default features = 3` to the configuration. I think there are plans to support rbd-nbd in cinderlib which would allow using additional features, but I'm not aware of

[ovirt-users] Re: Number of data bricks per oVirt HCI host

2020-10-14 Thread C Williams
Thanks Strahil ! More questions may follow. Thanks Again For Your Help ! On Wed, Oct 14, 2020 at 12:29 AM Strahil Nikolov wrote: > Imagine you got a host with 60 Spinning Disks -> I would recommend you to > split it to 10/12 disk groups and these groups will represent several > bricks (6/5).

[ovirt-users] Re: ovirt question

2020-10-14 Thread Tony Brian Albers
Hi, Read the docs at: https://ovirt.org/documentation/ For installation, in my experience, the most stable solution is to use a dedicated VM or physical host for running the oVirt engine(management system):

[ovirt-users] Re: ovirt question

2020-10-14 Thread Strahil Nikolov via Users
Hi, I would start with  https://www.ovirt.org/documentation/installing_ovirt_as_a_self-hosted_engine_using_the_cockpit_web_interface/ . It might have some issues as 4.4 is quite fresh and dynamic, but you just need to ping the community for help over the e-mail. Best Regards, Strahil Nikolov

[ovirt-users] Re: Q: Hybrid GlusterFS / local storage setup?

2020-10-14 Thread Strahil Nikolov via Users
Hi Gilboa, I think that storage domains need to be accessible from all nodes in the cluster - and as yours will be using local storage and yet be in a 2-node cluster that will be hard. My guess is that you can try the following cheat:  Create a single brick gluster volume and do some

[ovirt-users] Re: How to make oVirt + GlusterFS bulletproof

2020-10-14 Thread Strahil Nikolov via Users
strict-o-direct just allows the app to define if direct I/O is needed and yes, that could be a reason for your data loss. The good thing is that the feature is part of the virt group and there is a "Optimize for Virt" button somewhere in the UI . Yet, I prefer the manual approach of building

[ovirt-users] Re: Q: Hybrid GlusterFS / local storage setup?

2020-10-14 Thread Nir Soffer
On Wed, Oct 14, 2020, 12:42 Gilboa Davara wrote: > Hello all, > > I'm thinking about converting a couple of old dual Xeon V2 > workstations into (yet another) oVirt setup. > However, the use case for this cluster is somewhat different: > While I do want most of the VMs to be highly available

[ovirt-users] Q: Hybrid GlusterFS / local storage setup?

2020-10-14 Thread Gilboa Davara
Hello all, I'm thinking about converting a couple of old dual Xeon V2 workstations into (yet another) oVirt setup. However, the use case for this cluster is somewhat different: While I do want most of the VMs to be highly available (Via 2+1 GFS storage domain), I'd also want pin at least one

[ovirt-users] Re: How to make oVirt + GlusterFS bulletproof

2020-10-14 Thread Jarosław Prokopowski
Thanks. I will get rid of multipath. I did not set performance.strict-o-direct specifically, only changed permissions of the volume to vdsm.kvm and applied the virt gourp. Now is see performance.strict-o-direct was off. Could it be the reason of the data loss? Direct I/O is enabled in oVirt by

[ovirt-users] Re: Maximum domains per data center

2020-10-14 Thread Eyal Shenitzky
Hi Tommaso, As it says in the document, the maximum number of storage domains per data-center is 50. On Tue, 13 Oct 2020 at 17:54, Tommaso - Shellrent via Users wrote: > Hi to all. > > Can someone confirm to me the value of max domains per data center on > ovirt 4.4 ? > > We found only this

[ovirt-users] Re: 20+ Fresh Installs Failing in 20+ days [newbie & frustrated]

2020-10-14 Thread Gilboa Davara
On Mon, Oct 12, 2020 at 2:41 PM Edward Berger wrote: > > As an ovirt user my first reaction reading your message was > "that is a ridiculously small system to be trying ovirt self hosted engine > on." > > My minimum recommendation is 48GB of RAM dual xeon, since the hosted > ovirt-engine

[ovirt-users] Re: Latest ManagedBlockDevice documentation

2020-10-14 Thread Benny Zlotnik
Jeff is right, it's a limitation of kernel rbd, the recommendation is to add `rbd default features = 3` to the configuration. I think there are plans to support rbd-nbd in cinderlib which would allow using additional features, but I'm not aware of anything concrete. Additionally, the path for the

[ovirt-users] Re: 20+ Fresh Installs Failing in 20+ days [newbie & frustrated]

2020-10-14 Thread Yedidyah Bar David
On Wed, Oct 14, 2020 at 11:09 AM Yedidyah Bar David wrote: > > On Tue, Oct 13, 2020 at 6:07 PM wrote: > > > > I hope it is not too forward of me to only send it to you. > > It's not about being "too forward" or not. > > oVirt's support is intentionally on a public mailing list, so that: > > 1.

[ovirt-users] Re: 20+ Fresh Installs Failing in 20+ days [newbie & frustrated]

2020-10-14 Thread Yedidyah Bar David
On Tue, Oct 13, 2020 at 6:07 PM wrote: > > I hope it is not too forward of me to only send it to you. It's not about being "too forward" or not. oVirt's support is intentionally on a public mailing list, so that: 1. Everyone can (try to) help. And many do, including people outside of Red Hat

[ovirt-users] ovirt question

2020-10-14 Thread 陳星宇
Dear Sir: Can I ask you questions about ovirt? How should this system be installed? Louis Chen 陳星宇 Tel : +886-37-586-896 Ext.1337 Fax : +886-37-587-699 [描述: 描述: 描述: 02] louissy_c...@phison.com www.phison.comhttp://www.phison.com/> 群聯電子股份有限公司 Phison Electronics