Cisco Systems SFS 3012R

1-6

Cisco SFS 3012R Multifabric Server Switch Hardware Installation Guide

OL-11187-01

Chapter1 Cisco SFS 3012R Server Switch Overview

CiscoSFS 3012R Server Switch Co mponents

Figure1-5 CiscoSFS 3012R Server Switch Controller Module

The following points apply to the controller modules:

•Each CiscoSFS 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 th e 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 ca n manage a single

Cisco SFS 3012R Server Switch or redundant Cisco SFS 3012R Server Switches.

180749

1Serial console port 3Ejector lever

2Management Ethernet port 4Controller module LEDs