Pete,
Thanks for the reply. The HP advisory page that you sent over to me http://h20566.www2.hp.com/hpsc/doc/public/display?sp4ts.oid=4145106&docId=emr_na-c04218016&docLocale=en_USsuggest that there is a problem with the Emulex be2net firmware version 4.9.416.2
but according to the latest February 2015 HP-VMware Recipe book page 17:
it shows that the stable version is 4.9.416.2
Source: Recommended Firmware and Driver for HP http://vibsdepot.hp.com/hpq/recipes/ (Feb2015VMwareRecipeSPP201409_16.4.pdf)