topic iSCSI configuration vmware in Network and Storage Protocols

iSCSI configuration vmware

JustinMedcraft — Thu, 05 Jun 2025 04:14:06 GMT

I am trying to configure ISCSI on my environment. I am attempting to 'test' to present a LUN via ISCSI to our ESXi host. I've added the IQN's on both sides (NetApp & ESX) and ESX resolves the IQN from the IP address of the NetApp ISCSI adapter. When I rescan the ESX adapter I still can't see anything presented. Why?? This is getting beyond frustrating!!

I look forward to your response.

Re: iSCSI configuration vmware

georgevj — Wed, 03 Jun 2015 06:33:22 GMT

Did you test the process via commandline?

If so, there are chances that you might have missed some steps in between.

The correct process as far as I can remember would be:

create Aggr->volume->LUN

make sure that LUN is online

create an igroup, add ESXi's iqn to this i group

map the LUN to this igroup

configure vmkernel port for iscsi traffic on ESX

add target portal to vmware iscsi initiator (!IMPORTANT! - DO NOT use ip address od e0M port on your storage system)

and rescan..!

You could avoid a lot of configuration mistakes by using the OnCommand Systemmanager GUI to configure volumes and LUNs on yor netApp storage systems. Its free, and easy to use.

Available here: http://mysupport.netapp.com/NOW/cgi-bin/software/?product=OnCommand+System+Manager&platform=Windows

There is a Linux version also available, in case if you are not a fan of microsoft. http://mysupport.netapp.com/NOW/cgi-bin/software/?product=OnCommand+System+Manager&platform=Linux

Re: iSCSI configuration vmware

georgevj — Wed, 03 Jun 2015 06:36:27 GMT

One more thing: if you have a routed network, the 7 mode option ip.fastpath.enable can create a lot of mess with packet's routing. It can be very difficult to troubleshoot too. Let me know if you find any other thing interesting