In the GUI, a volume's WWNN can be found by navigating to the 'Configuration' tab. There you will see the list of volumes and each WWNN is listed under the 'NAA Identifier' column. Alternatively, in the XMCLI, the command show-volumes will detail the WWNN / NAA Identifier too.  Hope this helps. Regards, Anne
Hi Experts,  Do you know how to get XtremIO Volume WWN? Any help is appreciated! 
XtremIO Volume WWN