Re: [ceph-users] Mixing Ceph OSDs and hypervisor/compute nodes

2014-04-15 Thread Blair Bethwaite
Hi again, On 10 April 2014 16:17, Haomai Wang wrote: > I think you need to bind osd to specified cores and bind qemu-kvm to > other cores. Perhaps, but that would just be an optimisation. More likely we'd just bind the OSDs to the socket that is handling the SAS/RAID controller. Memory size i

Re: [ceph-users] Mixing Ceph OSDs and hypervisor/compute nodes

2014-04-09 Thread Haomai Wang
I think you need to bind osd to specified cores and bind qemu-kvm to other cores. Memory size is another factor need to take care of. If your vm's root disk uses local file, the IO problem maybe intractability On Thu, Apr 10, 2014 at 12:47 PM, Blair Bethwaite wrote: > Hi all, > > We're building a

[ceph-users] Mixing Ceph OSDs and hypervisor/compute nodes

2014-04-09 Thread Blair Bethwaite
Hi all, We're building a new OpenStack zone very soon. Our compute hosts are spec'd with direct attached disk for ephemeral instance storage and we have a bunch of other storage nodes for Ceph serving Cinder volumes. We're wondering about the feasibility of setting up the compute nodes as OSDs an