Re: [Users] Force certain VMs to be on different hosts

I think what the OP is asking for a designation as a "redundant group 1". He may have 10 hosts and 3 VMs in "redundant group 1". He doesn't care which hosts they run on, as long as they are three separate hosts. I can see this as being fairly widely applicable. If you have multiple web servers for load sharing, you don't want them all running on the same host, because VM load is going to peak on them at the same times. oVirt has no way of knowing that unless you give oVirt a hint to spread things around. The web group might also want to split up the server that spreads the jobs around, and a database server used by all the web hosts. I can see easily ending up with a group of 5 machines (3 web servers, a load sharing controller, and a database server) that you want spread across any 5 of the 15 servers in a cluster, because their loads are all going to spike together. You don't want oVirt having to try to migrate some of them during a load spike, because oVirt noticed that a host with 3 of the 5 is overloaded. Not my situation, but one I can see the usefulness of. Ted Miller Elkhart, IN, USA On 3/18/2014 11:54 AM, Meital Bourvine wrote: > Hi Scott, > > Click on a vm > Edit > Show Advanced Options > Host > "Start Running on" > > ----- Original Message ----- >> From: "Scott Ocken" <scott(a)infobunker.com&gt; >> To: Users(a)ovirt.org >> Sent: Tuesday, March 18, 2014 5:08:24 PM >> Subject: [Users] Force certain VMs to be on different hosts >> >> Is there a way to have certain VMs to be on different hosts? (assuming >> there are enough hosts) >> >> IE. I have a db cluster of 3 VMs. I would like each one to always be >> on different hosts. That way if a host goes down my db cluster is >> still happy while migration happens. Or if migration fails I am still >> good. >> >> Thanks >> Scott >> >> _______________________________________________ >> Users mailing list >> Users(a)ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users -- "He is no fool who gives what he cannot keep, to gain what he cannot lose." - - Jim Elliot For more information about Jim Elliot and his unusual life, see http://www.christianliteratureandliving.com/march2003/carolyn.html. Ted Miller Design Engineer HCJB Global Technology Center, a ministry of Reach Beyond 2830 South 17th St Elkhart, IN 46517 574--970-4272 my desk 574--970-4252 receptionist _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users