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Cisco SFS 3012R Multifabric Server Switch Hardware Installation Guide
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Chapter 1 Cisco SFS 3012R Server Switch Overview
Cisco SFS 3012R Server Switch Components
Figure 1-5 Cisco SFS 3012R Server Switch Controller Module
The following points apply to the controller modules:
• Each Cisco SFS 3012R Server Switch comes with one active controller and, optionally, one warm
standby controller.
• Upon power-up, the controller in slot 1 becomes the master (active). The controller in slot 14, if
present, becomes the standby.
• The startup configuration file can be synchronized between the active and the standby controllers.
The Command Line Interface (CLI) prompts users to synchronize the controllers.
• When the master controller fails or reboots, the standby controller automatically takes over as the
new master. All I/O modules (InfiniBand switch modules, Fibre Channel gateways and Ethernet
gateways) reboot when a failover occurs.
• Users can force a fail-over with the Element Manager graphic user interface (GUI) or with the CLI.
• The software upgrade/install process upgrades both the master controller and the standby controller
at the same time. You do not need to upgrade them separately.
• A subnet manager (SM) runs on each controller module. The SM can manage a single
Cisco SFS 3012R Server Switch or redundant Cisco SFS 3012R Server Switches.
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1 Serial console port 3 Ejector lever
2 Management Ethernet port 4 Controller module LEDs
