ESXI with iSCSI over multiple NICs

[Mikensan]

Just adding a thread for those that search for it in the future. There's plenty of guides / videos on how to properly bond nics for iSCSI in ESXI, but one thing they all leave out (at least the guides/videos I've gone through) is to enable round robin under multipathing. Given the only device I have with multiple NICs is my ESXI server, thus I'm unable to test from my desktop which made testing difficult. Find your datastore > properties > multipathing, make sure roundrobin is set. By default vmware has it set to "most recently used."

http://imgur.com/HRyxOc2

^Finally getting 2gbit speeds. Sadly took me a whole day to narrow down where the issue was and then what configuration wasn't correct.

 

Also a super useful tool for testing throughput / IOPS etc... is vmware's ioanalyzer.