Hi Len,

What you are trying to do is perfectly possible, however confusingly it has 
nothing to do with the CloudStack Physical Network 'storage'.  The CloudStack 
Storage Network is only used when accessing Secondary Storage, and is something 
which causes lots of confusion.  (re-writing the official docs in relation to 
this is on my very long list of things to do)

All you need to do is create two networks mapped to two different Bonds on your 
XenServer (assuming you want to use Bonding) then add a two new IPs, mapped to 
these networks.  As XenServer cannot VLAN TAG the traffic for Storage or 
Management Networks, you will need to set the Switch Ports to Access Ports and 
let your switch add the appropriate VLAN Tags.  This also highlights the need 
for dedicated NICs, one for each Storage Network, which is advisable in order 
to get optimum performance.  If you are using Jumbo Frames, remember to set the 
MTU on the Bond, before mapping an IP to the Network.

As longs as these CIDRs are unique, and do not overlap your CloudStack 
Management CIDR, when you add Primary Storage via CloudStack, your XenServers 
will simply use the appropriate Bond when they communicate with the Storage.  
Traffic routing is handled automatically by the XenServers based on the 
destination IPs.

Regards

Geoff Higginbottom

D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581

geoff.higginbot...@shapeblue.com


-----Original Message-----
From: Len Bellemore [mailto:len.bellem...@controlcircle.com]
Sent: 02 July 2013 14:02
To: users@cloudstack.apache.org
Subject: Multiple Storage Interfaces

Hi Guys,

Here's my scenario:

I am using XenServer as my hypervisor and I have two separate storage networks 
set up (in Xenserver) One network set up on vlan 100, one network set up on 
vlan 200 Each network goes to a separate storage device

Is it possible, when I create my Zone (advanced) to have multiple Physical 
Storage Networks?

Through the gui it doesn't seem to let me add multiple storage networks, but 
maybe through the API?

Thanks
Len



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