Cisco Nexus 5000 Series Switch CLI Software Configuration Guide, NX-OS 4.0(1a)N1 (OL-16597-01, January 2009)

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Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
OL-16597-01
Chapter 36 Configuring SAN Port Channels
Configuring SAN Port Channels
Figure 36-6 shows examples of invalid configurations. Assuming that the links are brought up in the 1,
2, 3, 4 sequence, links 3 and 4 will be operationally down as the fabric is misconfigured.
Figure 36-6 Misconfigured Configurations
This section shows how to configure and modify SAN port channels and includes the following topics:
• SAN Port Channel Configuration Guidelines, page 36-5
• Creating a SAN Port Channel, page 36-6
• About SAN Port Channel Modes, page 36-6
• About SAN Port Channel Deletion, page 36-7
• Deleting SAN Port Channels, page 36-8
SAN Port Channel Configuration Guidelines
Before configuring a SAN port channel, consider the following guidelines:
• Configure the SAN port channel using Fibre Channel ports from both expansion modules to provide
increased availability (if one of the expansion modules failed).
• Ensure that one SAN port channel is not connected to different sets of switches. SAN port channels
require point-to-point connections between the same set of switches.
If you misconfigure SAN port channels, you may receive a misconfiguration message. If you receive this
message, the port channel’s physical links are disabled because an error has been detected.
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Switch A Switch B Switch A Switch B
Channel Group 10 Channel Group 20 Channel Group 10 Channel Group 20
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Channel Group 10 Channel Group 20
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