openstack team mailing list archive

[David Busby <d.busby@xxxxxxxxxxxx>]

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 <a.holway@xxxxxxxxxxxx>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 <a.holway@xxxxxxxxxxxx>
> 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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>
>