Useful cmds for troubleshooting ISCSI on ESXI Shell

Just a quick post showing a few commands that are great for troubleshooting issues with ISCSI on  ESXI host:


the following cmd verifies that you can reach the TCP ISCSI port (2360) on the storage array from the host.

nc -z target_ip 3260


To test the san and switch configuration you can use the following cmd to ping a storage array with jumbo frames from a ESXI host:


the -d indicates “do not fragment”

vmkping:  uses VMkernel to ping a device.

list LUN multipathing information:

esxcli storage core path list

List NMP Devices:

esxcli storage nmp device list

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