Re: [Xen-users] what do you recommend for cluster fs ??

[Tom Mornini <tmornini@xxxxxxxxxxxxxx>]

On Sep 25, 2006, at 10:00 AM, Ceri Storey wrote:

> On Mon, Sep 25, 2006 at 09:52:19AM -0700, Tom Mornini wrote:
> > On Sep 25, 2006, at 8:09 AM, Martin Hierling wrote:
> >
> > > setup is easy (about 1h) but my test szenario was: P3-1GHz with
> > > Dom0 as iSCSI Target and 3 DomU as ocfs2 "clients" mounting the
> > > same FS over open-iscsi. That works out of the box but under heavy
> > > load the Clients get kicked by the heardbeat. That obviously was
> > > because the complete network was fuff of iscsi traffic (bonnie). I
> > > will test that in a real environment in about 2 weeks. will reoport
> > > here.
> > You might get better performance and leave this problem behind with
> > AoE as it's much less demanding under very high loads.
> I must admit that it sounds like you're running your frontend and
> backend networks on the same LAN.
>
> It's probably wise to use a dedicated network for storage network
> traffic, because as you've seen, it can quite easily saturate the  
> link,
> causing performance issues.
>
> It's also entirely possible that moving the storage onto a dedicated
> network would bring security benefits, assuming you've taken proper
> precautions (there's no need for it to have access / be accessible  
> from
> the internet).
These are all excellent points. We have separate IP and AoE networks.

--
-- Tom Mornini


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users