[Users] Limit migration bandwidth
Hi All, I have seen this question asked before and seen it answered but can't find it back on either the mailinglist or IRC, probably because I don't use the correct search term but can't dream up any new ones so I'm asking: How to limit the amount of VM's that can simultaneously be migrated and how to limit the bandwidth used by migrating VM's? Looked at vdc_options, engine-config but have run out of ides. Thanks in advance, Joop -- irc: jvandewege
----- Original Message ----- | From: "Joop" <jvdwege@xs4all.nl> | To: users@ovirt.org | Sent: Sunday, July 14, 2013 12:21:20 AM | Subject: [Users] Limit migration bandwidth | | Hi All, | | I have seen this question asked before and seen it answered but can't | find it back on either the mailinglist or IRC, probably because I don't | use the correct search term but can't dream up any new ones so I'm asking: | How to limit the amount of VM's that can simultaneously be migrated and | how to limit the bandwidth used by migrating VM's? | Looked at vdc_options, engine-config but have run out of ides. | | Thanks in advance, | | Joop | -- | irc: jvandewege | Hi Joop, Currently it is possible to hard-limit the migration using The /usr/share/doc/<vdsm-version>/vdsm.conf.sample file with # Maximum bandwidth for migration, in mbps, 0 means libvirt's default (30mbps?). # migration_max_bandwidth = 0 Change 0 to something else (5 does magic IIRC) to see how it works. In the coming oVirt 3.3 we should be able to handle this by separating the migration network, and then use- http://www.ovirt.org/Features/Network_QoS Doron
Thanks, that is it, problem solved. Joop -- Sent from my Android tablet with K-9 Mail. Please excuse my brevity.
Hi Joop. What is your actual problem here ? I have seperated nics for: - Management - VM (Internal/LAN) - VM (Outside/WAN) - Storage Or are you putting everything over one pipe ? Cheers, Matt 2013/7/14 Joop <jvdwege@xs4all.nl>
Thanks, that is it, problem solved.
Joop -- Sent from my Android tablet with K-9 Mail. Please excuse my brevity. _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Matt . wrote:
Hi Joop.
What is your actual problem here ?
I have seperated nics for:
- Management - VM (Internal/LAN) - VM (Outside/WAN) - Storage
Or are you putting everything over one pipe ?
Yes, I'm currently using one pipe as a temporarily solution. These are 'old' Xen vmhost with Debian VMs on it in a ISCSI environment which have a iscsi connection leak. Converting those Xen hosts to ovirt allows us to keep them around a while longer but since there is no network separation I needed that parameter otherwise migrating large amounts of VM's causes network congestion. Joop
participants (3)
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Doron Fediuck -
Joop -
Matt .