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DS-32M2 Description
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Switch Operating Features
Fibre Channel Ports The front panel provides 32 G_Ports that transmit or receive data at
2.125 Gbps. The G_Port can function as either an F_Port (fabric port)
or an E_Port (expansion port). If the G_Port is attached to an N_Port
(on an end device), it functions as an F_Port. If the G_Port attaches to
the G_Port of another switch, it functions as an E_Port.
CTP
The Control Processor (CTP) initializes and configures the switch
after the switch is plugged in or reset. The CTP contains the
microprocessor and associated logic that coordinate switch operation.
The CTP provides Intel i960 processor and application-specific
integrated circuit (ASIC) subsystems that:
â—† Execute switch firmware and the underlying operating system.
â—† Provide port communication functions.
â—† Provide nonvolatile memory for storing firmware (two memory
regions), switch configuration information, persistent operating
parameters, and memory dump files. Because two firmware
versions can be stored on the CTP, firmware is upgraded
concurrently.
â—† Provide connections to Fibre Channel ports and enable frame
transmission between switch ports without software
intervention.
â—† Provide connections to an RS-232 maintenance port and
10/100 Mbps Ethernet port.
The CTP is not a FRU. If the CTP fails and cannot be rebooted with
the reset button, the entire switch must be replaced.
Rear Panel
The switch rear panel includes two power supplies (PS0 and PS1),
five cooling fans, and an RS-232 maintenance port.
Cooling Fans Four fan modules provide cooling for the switch power supplies and
CTP subsystem, as well as redundancy for continued operation if a
single fan fails. Any fan module can be replaced while the switch is
operating. An amber LED at the lower left corner of each fan
illuminates if the fan fails or rotates at insufficient angular velocity.
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