Dedicated Migration Network
Good Day All; I am in the process of assembling a new oVirt cluster and I am wondering if there is any benefit to having a dedicated set of nics solely dedicated to VM migration. If so, would those nics (bonded) be on their own vlan and subnet or would they share a subnet with gluster storage or the management network ? Right now i'm planning on the following architecture. 1. Management = 10G X2 Bond per hypervisor host (10.66.0.0/24) 2. Gluster/iSCSI Storage = 10G X2 Bond per hypervisor host (10.244.0.0/24) 3. VM Production Network(s) = 10G X2 Bond per hypervisor host (No IP Range) 4. ?? Possible Dedicated VM Migration Thank you very much as any input would be greatly appreciated
You can use the management network for migration and set a threshold to keep some bandwidth for the actual management traffic. Having separate management network would be useful if you have a very large cluster and you will have a lot of movement between the nodes. Best Regards,Strahil Nikolov On Thu, Jun 16, 2022 at 16:28, Clint Boggio<clint.boggio@gmail.com> wrote: Good Day All; I am in the process of assembling a new oVirt cluster and I am wondering if there is any benefit to having a dedicated set of nics solely dedicated to VM migration. If so, would those nics (bonded) be on their own vlan and subnet or would they share a subnet with gluster storage or the management network ? Right now i'm planning on the following architecture. 1. Management = 10G X2 Bond per hypervisor host (10.66.0.0/24) 2. Gluster/iSCSI Storage = 10G X2 Bond per hypervisor host (10.244.0.0/24) 3. VM Production Network(s) = 10G X2 Bond per hypervisor host (No IP Range) 4. ?? Possible Dedicated VM Migration Thank you very much as any input would be greatly appreciated _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/JFHLAJ2RGWFA4V...
I currently have it setup in similar way. I'd love to do 10G when the switch is upgraded but for now. MGMT-2 or 4Port Bond depending on SRVR Gluster-2 or 4Port Bond You can configure under your Cluster as to which Network you want to use for which, whether mgmt or gluster or even migration.
Thanks for the input Abe. For the dedicated migration network, would I need to IP the bonds that I plan to use for that migration network and should they be in an isolated vlan or should the bonds be sans IP in their own vlan ?
Hi Clint, Just from experience, yes the migration network is IP based and doesn't need a gateway. Regards Angus ________________________________ From: Clint Boggio <clint.boggio@gmail.com> Sent: 20 June 2022 15:43 To: users@ovirt.org <users@ovirt.org> Subject: [ovirt-users] Re: Dedicated Migration Network Thanks for the input Abe. For the dedicated migration network, would I need to IP the bonds that I plan to use for that migration network and should they be in an isolated vlan or should the bonds be sans IP in their own vlan ? _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ovirt.... oVirt Code of Conduct: https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ovirt.... List Archives: https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.ovir...
They should have IPs yes, but without a GW set. I think It is better to have isolated vlans, the whole point of separating the 2 networks is generally for this purpose, only data traffic traversing. I am really tempted to try jumbo frames as well although the network I am under @ work is not one I can risk playing with at the moment. If you have time to experiment though, bumping your MTU from 1500 to whatever your infrastructure supports will make a difference as well.
Just to share some operational experience, I set MTU=9000 on all our networks including the migration network 👍 Worthy mention: You must ensure this is applied on network equipment otherwise your packets will fragment which would likely result in worse performance than leaving the default MTU of 1500. Regards Angus ________________________________ From: Abe E <aellahib@gmail.com> Sent: 21 June 2022 07:09 To: users@ovirt.org <users@ovirt.org> Subject: [ovirt-users] Re: Dedicated Migration Network They should have IPs yes, but without a GW set. I think It is better to have isolated vlans, the whole point of separating the 2 networks is generally for this purpose, only data traffic traversing. I am really tempted to try jumbo frames as well although the network I am under @ work is not one I can risk playing with at the moment. If you have time to experiment though, bumping your MTU from 1500 to whatever your infrastructure supports will make a difference as well. _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ovirt.... oVirt Code of Conduct: https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ovirt.... List Archives: https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.ovir...
participants (4)
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Abe E -
Angus Clarke -
Clint Boggio -
Strahil Nikolov