Open Stack

One other thing you'll want to consider upfront w.r.t a hardware purchase
is whether or not you want to support live migration.

http://docs.openstack.org/cactus/openstack-compute/admin/content/configuring-live-migrations.html

For this you'll need a large amount of shared storage (usually via NFS)
where the instance files will live. Whether you choose SAN, NAS, or just a
node with a bunch of disk is likely dependent on your environment and
budget.

Everett

On Mon, Mar 26, 2012 at 5:17 AM, Razique Mahroua
<razique.mahroua at gmail.com>wrote:

> Hello Alberto,
> I would advise you to deploy as much as node as you can, and dedicate
> separate services. That would bring you the possibility to extend your
> knowledge on HA mechanisms, and really understand how services interact
> each other.
> Let's say you spawn an instance from the api server, while it's is
> launched on a compute node - which is one another server. By having
> splitted architecture, you won't miss the obvious ;-)
> What is the purpose of the lab ?
>
> *Nuage & Co - Razique Mahroua** *
> razique.mahroua at gmail.com
>
>
> Le 26 mars 2012 à 12:56, Alberto Molina Coballes a écrit :
>
> Hi all,
>
> I'm a teacher at a sysadmin academy and we are planning to deploy a
> private cloud with OpenStack for educational/training purposes. We are
> currently selecting the optimal hardware configuration for our needs
> and I'm asking for some help to the list.
>
> Using [1] as a reference, we are clear about hardware specifications
> of compute nodes (4 nodes with 2 processors), but we aren't about the
> best solution for node controller and optimal storage:
>
> Option 1:
>
> 1 server with 2 HD in RAID1 (nova controller, nova volume, glance,
> ...) + 1 SAN iSCSI
>
> Option 2:
>
> 1 server with 12 HD in RAID5/6 (nova controller, nova volume, glance, ...)
>
> We are excited about the possibilities that a private cloud brings to
> us and we don't want to fail in this critical step, so any help will
> be really appreciated.
>
> Alberto Molina Coballes
> IES Gonzalo Nazareno
>
> [1] http://www.referencearchitecture.org/hardware-specifications/
>
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