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7.2 Configuring high availability
The administrator can configure the RamSan's Fibre Channel (FC)
controllers to back each other up in case of a failure. There are
five basic FC controller states. To view or change the state:
•
From the Telnet Main Menu, select "Controller setup"
Figure 7-4: Controller Setup Menu
The Controller Setup screen, see Figure 7-4, displays the
selected controller at the top of the screen. Next to the controller
number, the display indicates the controller's states. In Figure 7-4,
the selected controller is "2" and the display indicates that the
controller's state is "Primary (Active, Secondary is 3)." The
following list details what these states mean, how a controller can
end up in each state, and what a controller's options are from the
states:
Primary (Active)
This default state is the most basic state. In this state, the
controller is not associated with any of the other FC controllers.
The administrator can modify any controller setting from this state,
and the effect will be local to this controller. This controller's links
are enabled and can be used to transmit and receive data.
RamSan-300/320 User's Manual
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