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From Somesh Naidu <Somesh.Na...@citrix.com>
Subject RE: Physical network design options - which crime to comit
Date Fri, 26 Dec 2014 20:46:17 GMT
I generally prefer to keep the storage traffic separate. Reason is that storage performance
(provision templates to primary, snapshots, copy templates, etc) significantly impact end
user experience. In addition, it also helps isolate network issues when troubleshooting.

So I'd go for one of the following in that order:
Case I
1G = mgmt network (only mgmt)
10G = Primary and Secondary storage traffic
10G = Guest and Public traffic

Case II
10G = Primary and Secondary storage traffic
10G = mgmt network, Guest and Public traffic

Case III
10G = mgmt network, Primary and Secondary storage traffic
10G = Guest and Public traffic

-----Original Message-----
From: Andrija Panic [mailto:andrija.panic@gmail.com] 
Sent: Friday, December 26, 2014 10:06 AM
To: users@cloudstack.apache.org; dev@cloudstack.apache.org
Subject: Physical network design options - which crime to comit

Hi folks,

I'm designing some stuff - and wondering which crime to commit - I have 2
posible scenarios in my head
I have folowing NICs available on compute nodes:
1 x 1G NIC
2 x 10G NIC

I was wondering which approach would be better, as I', thinking about 2
possible sollutions at the moment, maybe 3.

*First scenario:*

1G = mgmt network (only mgmt)
10G = Primary and Secondary storage traffic
10G = Guest and Public traffic


*Second scenario*

1G = not used at all
10G = mgmt,primary,secondary storage
10G = Guest and Public


And possibly a 3rd scenario:

1G = not used at all
10G = mgmt+primary storage
10G = secondary storage, guest,public network


I could continue here with different scenarios - but I'm wondering if 1G
dedicated for mgmt would make sense - I know it is "better" to have it
dedicated if possible, but folowing "KISS" and knowing it's extremely light
weight traffic - I was thinkin puting everything on 2 x 10G interfaces.

Any opinions are most welcome.
Thanks,


-- 

Andrija Panić
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