[Openstack-operators] Using a SAN for nova-volume & KVM

Jonathan Proulx jon at jonproulx.com
Sat Jul 28 22:35:26 UTC 2012

Hi Tom,

Hopefully someone has a better answer for you as I'm still relatively
new to OpenStack myself, but I looked into this a little while ago
because I too have an Equalogic SAN and KVM hypervisors.  The
Equalogic connector in that equation is provided by XenServer not
OpenStack (in fact I think but am less sure that it isn't even part of
the opensource xen).

Since I'm running a research system I can take some risks and have
decided to go this Ceph for my storage needs, if I were in your HA
needing shoes I'd look at how much coding was required to hook
Equalogic's API (which exists but I haven't looked at in years) into
the nova-volume service, you could be someone's hero, but I don't
think there's any current work toward this.

I'd be happy to be told I'm wrong about that...


On Fri, Jul 27, 2012 at 3:13 PM, Thomas Vachon <vachon at sessionm.com> wrote:
> Hi All,
> We are architecting our system for KVM (as it is the best hypervisor for
> your money for HA networking) and a SAN for HA nova-volumes.  The only
> reference to being able to use a SAN is with XenServer as the hypervisor.  I
> have no problem giving a server permission to create luns (or pre-creating
> them if I have to) for now.  I want to make sure I can point all the stuff
> to the SAN instead of doing some half-hearted attempt by using a box as a
> proxy.
> Our san is an EQL so iSCSI is easy.  Also, we run our "san" net on a
> separate 10Gbe set of interfaces (all the servers have connectivity into the
> SAN layer).
> Any thoughts?
> --
> Thomas Vachon
> Principal Operations Architect
> session M
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