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CHAPTER 24
Configuring SAN Pin Groups
This chapter includes the following sections:
• SAN Pin Groups, page 343
• Creating a SAN Pin Group, page 343
• Deleting a SAN Pin Group, page 344
SAN Pin Groups
Cisco UCS uses SAN pin groups to pin Fibre Channel traffic from a vHBA on a server to an uplink Fibre
Channel port on the fabric interconnect. You can use this pinning to manage the distribution of traffic from
the servers.
In Fibre Channel switch mode, SAN pin groups are irrelevant. Any existing SAN pin groups will be
ignored.
Note
To configure pinning for a server, you must include the SAN pin group in a vHBA policy. The vHBA policy
is then included in the service profile assigned to that server. All traffic from the vHBA will travel through
the I/O module to the specified uplink Fibre Channel port.
You can assign the same pin group to multiple vHBA policies. As a result, you do not need to manually pin
the traffic for each vHBA.
Changing the target interface for an existing SAN pin group disrupts traffic for all vHBAs which use that
pin group. The fabric interconnect performs a log in and log out for the Fibre Channel protocols to re-pin
the traffic.
Important
Creating a SAN Pin Group
In a system with two fabric interconnects, you can associate the pin group with only one fabric interconnect
or with both fabric interconnects.
Cisco UCS Manager GUI Configuration Guide, Release 2.0
OL-25712-04 343