Good plan.

https://blueprints.launchpad.net/openstack-ci/+spec/multiple-storage-domains


On Dec 20, 2012, at 4:25 PM, David Busby wrote:

> I may of course be entirely wrong :) which would be cool if this is 
> achievable / on the roadmap.
> 
> At the very least if this is not already in discussion I'd raise it on 
> launchpad as a potential feature.
> 
> 
> 
> 
> On Thu, Dec 20, 2012 at 3:19 PM, Andrew Holway <[email protected]> wrote:
> Ah shame. You can specify different storage domains in oVirt.
> 
> On Dec 20, 2012, at 4:16 PM, David Busby wrote:
> 
> > Hi Andrew,
> >
> > An interesting idea, but I am unaware if nova supports storage affinity in 
> > any way, it does support host affinity iirc, as a kludge you could have say 
> > some nova compute nodes using your "slow mount" and reserve the "fast 
> > mount" nodes as required, perhaps even defining separate zones for 
> > deployment?
> >
> > Cheers
> >
> > David
> >
> >
> >
> >
> >
> > On Thu, Dec 20, 2012 at 2:53 PM, Andrew Holway <[email protected]> 
> > wrote:
> > Hi David,
> >
> > It is for nova.
> >
> > Im not sure I understand. I want to be able to say to openstack; 
> > "openstack, please install this instance (A) on this mountpoint and please 
> > install this instance (B) on this other mountpoint." I am planning on 
> > having two NFS / Gluster based stores, a fast one and a slow one.
> >
> > I probably will not want to say please every time :)
> >
> > Thanks,
> >
> > Andrew
> >
> > On Dec 20, 2012, at 3:42 PM, David Busby wrote:
> >
> > > Hi Andrew,
> > >
> > > Is this for glance or nova ?
> > >
> > > For nova change:
> > >
> > > state_path = /var/lib/nova
> > > lock_path = /var/lib/nova/tmp
> > >
> > > in your nova.conf
> > >
> > > For glance I'm unsure, may be easier to just mount gluster right onto 
> > > /var/lib/glance (similarly could do the same for /var/lib/nova).
> > >
> > > And just my £0.02 I've had no end of problems getting gluster to "play 
> > > nice" on small POC clusters (3 - 5 nodes, I've tried nfs tried glusterfs, 
> > > tried 2 replica N distribute setups with many a random glusterfs death), 
> > > as such I have opted for using ceph.
> > >
> > > ceph's rados can also be used with cinder from the brief reading I've 
> > > been doing into it.
> > >
> > >
> > > Cheers
> > >
> > > David
> > >
> > >
> > >
> > >
> > >
> > > On Thu, Dec 20, 2012 at 1:53 PM, Andrew Holway <[email protected]> 
> > > wrote:
> > > Hi,
> > >
> > > If I have /nfs1mount and /nfs2mount or /nfs1mount and /glustermount can I 
> > > control where openstack puts the disk files?
> > >
> > > Thanks,
> > >
> > > Andrew
> > >
> > > _______________________________________________
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> > >
> >
> >
> >
> 
> 
> 



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