Check this KB.   OneFS: How to gather Isilon cluster diagnostics using the isi_netlogger command [URL]
I've looked through the CLI guide for 7.2 and cannot find this command listed at all. There is no man page either. When I run this on our NL400  it doesn't capture anything in or out of the 10gig interfaces, only the management ports. Is this expected? What I am trying to do is just capture traffic out of all 3 nodes on the 10gige-1 interfaces, not all the others. There is no LACP in play. I tried using the isi_for_array with tcpdump on them but it complained about invalid interface names yet I could run tcpdump against a single if with the same syntax. Makes no sense to me.  thanks
isi_netlogger syntax