Hi Mike,

ACS doesn't touch the uplink assignments already created. But you can't really 
tell it which uplinks to set in a portgroup, so when it creates the Storage 
portgroup it might not use the desired uplinks, it will be using the default 
uplinks set on ESX.
You could wait for ACS to create the portgroup, check which uplinks it uses and 
then change the others accordingly (annoying, I know)

The way I'd carve those 8 NICs would be:

VDS _Management - 2 uplinks, with your management portgroups and management vmk
VDS_Guest - 2 uplinks, for ACS to create guest networks.
VDS_Storage - 2 uplinks, with your NFS vmk and ACS's storage portgroup and your 
vMotion vmk (which you can then set to use whatever uplinks are not the 
default, you can check after ACS has created the storage portgroup)

Alternatively you can create a 4th VDS, something like  VDS_OOB - 2 uplinks 
with the vMotion vmk. (In my case I've used that in production for monitoring 
and backups, but could be for vMotion as well).

Hope that helps,

Btw, what bandwidth do you have on those links?

Cheers,
Alex

From: Corey, Mike <mike.co...@sap.com>
Sent: 10 May 2021 22:15
To: Alex Mattioli <alex.matti...@shapeblue.com>
Subject: VMware VDS Specifics

Hi Alex,

I'm about to run through my first 4.15 zone setup but want to make sure I have 
my VDS lined up.

I have 8 uplinks broken out: (2) vmk0, (2) vmotion, (2) NFS, (2) guest traffic.

I have two VDS configured; one for "management" port groups and one for guest 
VM traffic port groups.  On the management VDS, there are six uplinks and I 
have uplink assignments for each of the kernel traffic types...meaning I 
segregate vmk0 to 2 uplinks, NFS is on 2 other uplinks, and vmotion on 2 other 
uplinks.  The guest vm VDS is simple with two uplinks assigned to the public 
and private port groups.

My concern/question is how will CloudStack handle this layout and will it 
"respect" how I have the VDS port group to uplink assignments?  When it creates 
the storage port group for example will I be able to assign the uplinks 
dedicated for storage traffic on my hosts?




Mike Corey

Technology Senior Consultant, IT CS CTW Operation & Virtualization Service US

SAP AMERICA, INC. 3999 West Chester Pike, Newtown Square, 19073 United States

T +1 610 661 0905, M +1 484 274 2658, E 
mike.co...@sap.com<mailto:mike.co...@sap.com>


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