troubleshooting Question

vSphere 4 iSCSI

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Rio_10Flag for Cyprus asked on
Server HardwareVMwareVirtualization
7 Comments1 Solution401 ViewsLast Modified:
Hi all,

I need some help setting up my vSphere iSCSI connections.

Setup is as follows:

1 ESX server with 2 iSCSI Nics,
2 Physical switches
1 Storage Array with 1 controller and 2 iSCSI Nics

In ESX
 
1 iSCSI Nic - 192.160.248.3 into a vSwitch with 2 vnics of 192.160.248.1 and 192.160.248.2
1 iSCSI Nic - 192.160.249.3 into a vSwitch with 2 vnics of 192.160.249.1 and 192.160.249.2

From ESX

1 iSCSI Nic - 192.160.248.3 into 1 Physcial switch - 192.160.248.x
1 iSCSI Nic - 192.160.249.3 into 1 Physcial switch - 192.160.249.x

Then from:

1 Physcial switch - 192.160.248.x into storage array 192.160.248.4
1 Physcial switch - 192.160.249.x into storage array 192.160.249.4

The problem seems to be with Multipathing in ESX. When i setup the iSCSI initiator and use the Dynamic Discovery it finds both the 192.160.248.4 and 192.160.249.4 iSCSI ports. These get added successfully but when i check the path of the iSCSI it has 192.160.248.4 twice. One connection states Active I/O and the other active.

If i pull out the network cable the connection is lost because there is no 192.160.249.4 as one of the paths.  I really need some help on this experts, ive been racking my brain, im so close to finishing the configuration.

I want one of the paths to be 192.160.248.4 and the other 192.160.249.4 for redundency. Is this not possible you cant have two different subnets on the one initiator?

Thanks in advance.

Rio


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