This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


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

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). 
Ceri Storey <cez@xxxxxxxxxxxxxxxx>
'What I really want is "apt-get smite"' 
    --Rob Partington <http://rjp.frottage.org>

Xen-users mailing list

<Prev in Thread] Current Thread [Next in Thread>