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Need help with connecting my VMWare Vswitch to an ISCSI SAN on a seperate switch in a VLAN

I'm having trouble getting my VMWare ESXI 5 host configured to connect to a SAN that is on a switch in my network.

The SAN is on a Cisco 3750 switch in VLAN 100.  My VMWare server is on a Dell blade server connected to a Dell 8024k switch.  I've trunked all my switch ports.  

I'm creating my VSwitch using a VMKernel port and putting an address in the same range and VLAN ID that is the same as the one my SAN is sitting in on the Cisco switch.   The Cisco switch is connected to my 8024k switch.  

Can someone help me with port settings?  Do I need to put my VSwitch in the same VLAN as my SAN?  How about the port my 3750 is plugged into on my Dell switch?   I'm only working with 2 NIC's so I will have to use VLAN's in VMWare to segment my traffic.  

Please forgive my lack of knowledge.  I do understand VLAN's to some degree but I don't undertstand when I need to tag and untag traffic and where that gets done.    

Thanks in advance.
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pclark6127
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pclark6127
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iknowitallCommented:
I mean really isolated network. No routing between them.
Is the multipath software that can switch from one path to another, and if need from one network to another.
Note that the PowerVault will have for each processor, one interface to one net and one to the other.
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pclark6127Author Commented:
I don't understand your comment. My SAN is a Compellent SAN but I don't think that plays into it. Were talking about standard ISCSI here.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
The VMKernel Portgroup needs to be Tagged, and you also need to ensure that you have ALL VLANs configured and Tagged on your physical switch.

can you ping and vmkping from the console, or remotely via SSH, your SAN from ESXi host server?

upload screenshots of your networking?

see my EE Articles for Hints and Tips

HOW TO: Add an iSCSI Software Adaptor and Create an iSCSI Multipath Network in VMware vSphere Hypervisor ESXi 4.1

HOW TO: Add an iSCSI Software Adaptor and Create an iSCSI Multipath Network in VMware vSphere Hypervisor ESXi 5.0

HOW TO: Enable Jumbo Frames on a VMware vSphere Hypervisor (ESXi 5.0) host server using the VMware vSphere Client
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iknowitallCommented:
Re eject the Vm Ware powerspace the subscript change the port then refresh the settings
All should work well If not contact me
@ Know.It.All Tech Support
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