pls refer below docs:
http://www.cisco.com/c/en/us/products/collateral/switches/nexus-9000-series-switches/guide-c07-733228.html
http://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/products-installation-and-configuration-guides-list.html
http://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/products-installation-guides-list.html