Configurationsof 1, 2, 4, or 8 10 GB connections between FEX and Fabric interconnect are supported in
UCS.If yourUCS 2104XPhas 4 physicalconnections and you want more, the next available upgrade step
isthe full 8 connections on the UCS 2208XP. You should verify that the FEX upgrade is completed with no
problemsbefore adding theconnections for ports5-8.
Ifyou intend to implement the Fabric port channel feature available in UCS software version 2.0, you may
needto rearrange the cabling between FEX and Fabric Interconnect before performing the feature configuration.
Fabricport channel will require that all physical links from a givenFEX physically connect to a contiguous
blockof ports (1 to 8 or 9 to 16, and so on). This feature requires a Cisco UCS M82-8P Virtual Interface Card
inat least one blade server, and the UCS 2208XP FEX. See the Fabric Port Channel sections in the configuration
guidesfor more details.
Removing a FEX
Procedure
Step 1 Removeall cables from theFEX.
Step 2 Loosenthe captive screws on the FEX.
Step 3 Pullthe levers outward to unseat the FEX.
Step 4 Usingthe levers, pull the FEX from its slot.
Step 5 Installa blank FEX filler panel (N20-CBLKI) if the FEX slot is to remain empty.
Ifyou plan to remove a FEX for an extended period of time, you must replace it with the N20-CBLKI
blankto avoid EMI issues. Blanks can be order from Cisco.
Note
Cisco UCS 5108 Server Chassis Installation Guide
64 OL-20035-05
Installing and Removing Components
Removing a FEX