I recently stumbled upon this issue when adding some new vNICs for use with a new iSCSI storage array.  I followed the usual order of operations for our UCS B-series blades: create new vNIC templates, add the vNICs to the LAN Connectivity Policy in UCS Manager, put first vSphere host in the cluster into maintenance … Continue reading Add UCS vNICs causes vmnic re-order on vSphere host