mvale83
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Multiple Management Networks ESXi5.5

Hello

I've used this setup before to build a lab and it has worked fine. However, I cannot for the life of me work out what has gone on with the scenario I have built.

I have a ESXi host in a lab. This host is running 4 nested ESXi servers, 4 windows 8 clients and 1 openfiler iSCSI virtual appliance.

I have a management network to manage the physical host and subsequent management networks in different vSwitches to manage the nested hosts so the Windows 8 clients can manage their respective nested esxi hosts.

I have created a SAN with open filer and shared out resource via iSCSI.

I cannot get the nested esxi hosted to see the iSCSI storage.

When I had this problem before it was that the physical host needed to be in the iSCSI management network and to that end created a management network in the iSCSI subnet range. There are no physical adapters connected to this vSwitch.

From the windows 8 client I can ping the physical host and SAN on that network but not the nested ESXi host even though it is connected to the same port groups / mgmt networks.

I figure this is down to the default gateway on the physical host server as it is set to the physical management network gateway. However when I change it in the iSCSI network (bearing in mind it has no physical adpaters and is in a separate vSwitch) it modifies the DG for ALL management networks across the vSwitches. In my other server it modifies just the particular one. But in this one this weird thing happens.

Does anyone know why this happens?

Thanks

Mark

P.s I know this is not supported config, this is for training and lab purposes only and not production

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Hello,

I cannot get the nested esxi hosted to see the iSCSI storage.

You'll want to add a dedicated virtual NIC to each of your nested ESXi hosts that is used for iSCSI.  If you want to configure iSCSI properly using the ESXi software iSCSI initiator, iSCSI port binding, and multipath IO, you'll actually want two virtual NICs.

Within the physical host, you'll create a vSwitch that's dedicated to iSCSI traffic.  As you know, this vSwitch doesn't need a physical NIC.  Create a single Virtual Machine Portgroup on this vSwitch and assign all of your nested ESXi iSCSI virtual NICs as well your Openfiler virtual NICs to this portgroup.

Check out this post I created with a similar setup, using a single physical server to run a nested vSphere 4.1 lab.  Towards the bottom you'll see a screenshot of vSwitch1 that I used for iSCSI traffic.  That's what you'll want to do.

http://virtuallymikebrown.com/2011/12/22/how-to-configure-lun-masking-with-openfiler-2-99-and-esxi-4...

All the best,

Mike

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Please consider marking this answer "correct" or "helpful" if you found it useful.

Mike Brown

VMware, Cisco Data Center, and NetApp dude

Consulting Engineer

michael.b.brown3@gmail.com

Twitter: @VirtuallyMikeB

Blog: http://VirtuallyMikeBrown.com

LinkedIn: http://LinkedIn.com/in/michaelbbrown

----------------------------------------- Please consider marking this answer "correct" or "helpful" if you found it useful (you'll get points too). Mike Brown VMware, Cisco Data Center, and NetApp dude Sr. Systems Engineer michael.b.brown3@gmail.com Twitter: @VirtuallyMikeB Blog: http://VirtuallyMikeBrown.com LinkedIn: http://LinkedIn.com/in/michaelbbrown
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