Need help with VMWare, Dell Blade Server and SAN

Posted on 2013-05-24
Medium Priority
Last Modified: 2016-11-23
I really need some help with a configuration.  

We have a new blade server and SAN and I'm trying to get it set up to migrate from my old VMWare hosts and SAN.  The idea is to do a storage Vmotion from the old SAN to the new one.  My issues are many thought.  

My current setup is that I am using 3 physical host 3x Dell R710 servers with plenty of network cards to do whatever I want.   The blade server only has 4 network cards.  Two are on Fabric B allocated to the new SAN and are 10 Gig ISCSI with one for redundancy.  The other two are on Fabric A.  One is on my Management and local network and I have a spare

I'm planning on using the spare to go over to my old ISCSI network and configure it so I can do an storage VMotion.  

My problem is since I have so few network cards I've read where you I can trunk the internal ports on my switch and create VLAN's  but I'm not sure how this will work.  When I look at the NIC that I want to use for this it is showing my 10.10.x.x network since it's plugged in there through one port on my switch but I've plugged my old SAN into the switch also.  How can I get the traffic from it to flow through the same card my 10.10.x.x network is flowing through?  This would be trunking I assume?  

I need someone to describe in as much detail as possible how to do what I'm trying to do in VMWare and on the switch.  Some guy I was talking to told me I should be able to create as many networks as I want to once this is set up correctly but it's beyond me how to do it.   Thanks.......
Question by:pclark6127
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Accepted Solution

Aaron Tomosky earned 2000 total points
ID: 39196731
I can explain at a high level as I've done this with much lower end gear but the result is similar. Since you don't need to cross vlans, you don't need a layer 3 device for any of this. Start by reading this:
By default there are no vlans assigned to the esxi networks so even if you have vlans setup in the switch you are sending out untagged packets to the port.
Vlans on a switch can be tagged out the port to your esxi hosts. Each of the networks you create can have no vlan (default) or you can specify one.
You can add as many networks as you want to one nic with different vlans but first you have to add a vswitch for each vlan.
If you have no vlan now, and the switch packets are untagged, when you specify a vlan tag on the management network you will lose connectivity so be ready to change the switch port to tag those packets correctly.
LVL 126
ID: 39196892
if you have so few network cards, the best solution will be to use VLANs.

So trunk ALL your physical NICs, define VLANs for all your network needs, and present these to the ESXi server.

do you have access to the rest of the network infrastructure?

ave a look here

Pages 13 - 73 Discuss Networking in Detail, iuncluding trunks, VLANs, switches, and load balancing

ESXi Configuration Guide ESXi 4.1

Virtual Networking

Virtual Networking Concepts

Sample configuration of virtual switch VLAN tagging (VST Mode)


How to Setup VLANs

VMware ESX Server 3: 802.1Q VLAN Solutions

Author Closing Comment

ID: 39197053
LVL 39

Expert Comment

by:Aaron Tomosky
ID: 39197141
Probably want to follow hanccockas advice too though

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