Please I would like to clarify a question, is that a solution of storage, such as EMC VNX5300 can be connected directly to a Fabric Interconnect, but would lose functionality when connected to a Nexus 5000 switch. I would like someone to clarify this doubt indicating that functionality is lost when direct connection would be advisable to FI or the Nexus.
In versions of UCS earlier than 2.1, you had the option to useDirect Attached Storage DAS with UCS. However, you needed a SAN switch connected to the FI so the switch could push the zone database to the FI. That is, the UCS platform was not able to build a zone database
With the release of Version 2.1, UCS now has the ability to build its own zone database. You can have DAS with UCS without the need for a SAN switch to push the zoning configuration