Joined Cisco in early 2009 after 8+ years being an x86 blade and rackmount server subject matter expert at Compaq and HP. Currently a Consulting Systems Engineer for the Data Center products supporting the Commercial segment in Southern California.
Unified Computing System
Enterprise Cloud Suite
The Scalability Port on the 6324 Fabric Interconnect can only be used for downlink purposes, which include Ethernet Appliance, FCoE Storage, or Server port types. That means that at least one of the 10Gb Unified Ports on the 6324 must be used for the Ethernet Uplinks, leaving a maximum of three per 6324 FI that can be used for Fibre Channel, hence the rule in CCW about a maximum of 6 FC transceivers configurable per chassis. See the UCS Manager GUI Configuration Guide at http://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/sw/gui/config/guide/3-0/b_UCSM_GUI_User_Guide_3_0/b_UCSM_GUI_User_Guide_3_0_chapter_0110.html#concept_8B14549B9F6B417B8756061CC26735E2, where it states: "The scalability ports can be used as a licensed server port for supported Cisco UCS rack servers, an appliance port, or a FCoE port." As to why you can't use one of the breakout ports as an uplink, that likely is a result of testing and certification with various upstream switches using 4x10Gb breakout. Perhaps future releases will support Uplink port type on these breakout interfaces, but I can't promise anything. BT
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The Cisco UCS C250 M1 Extended Memory rack servers use the same memory extension technology as the UCS B250 M1 Extended Memory blade servers. For more information on how the memory extension technology works, see the whitepaper at: http://www.cisco.com/en/US/prod/collateral/ps10265/ps10280/ps10300/white_paper_c11-525300.html BT
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