Chapter 9. Control Processor Blades; Control Processor Blade Overview - IBM SAN512B-6 Installation, Service And User Manual

Chapter 9. Control Processor Blades

This chapter provides the following information:
v "Control processor blade overview"
v "Precautions specific to the blade" on page 131
v "Blade fault indicators" on page 131
v "Blade replacement task guide" on page 132
v "Time and items required for replacement" on page 133
v "Preparing for replacement" on page 133
v "Replacing a CP blade" on page 134
v "Verifying blade operation" on page 144

Control processor blade overview

The CPX6 control processor blades are half the slot height of other SAN512B-6
blades. Two CPX6 control processor blades are stacked vertically in the half slots
on the left side of the chassis to provide CP redundancy. CP0 is installed in slot 1,
while CP1 is installed in slot 2.
The control processor (CP) blade contains the control plane for the device and
hosts the Fabric OS that manages all hardware within the device. It also provides
the following external connections for device configuration, firmware downloads,
service, management, and monitoring functions.
v USB port for firmware download and supportsave data.
v Serial console RJ45 port.
v 10/100/1000Base-T RJ45 Ethernet port for device management and
v 10/100/1000Base-T RJ45 Ethernet port for service.
v 10 Gbps Base-T RJ45 Ethernet port (reserved for future use).
The two 10/100/1000 Mbps Ethernet ports are bound together as a single logical
network interface. One port is selected as the active interface, while the other is
select as the standby interface. All traffic is transmitted over the active port while
no traffic is transmitted over the standby interface. If the primary Ethernet port
fails (due to something other than power loss), the standby port becomes active
and immediately takes over data transmission to retain link layer communication.
Note: Connecting the CP blades to a private network or VLAN is recommended.
The blade contains a blue LED to indicate active CP status, green LEDs on
Ethernet ports to indicate link and activity, and green and amber LEDs to indicate
blade power and status.
A bright, white beacon LED is located just beneath the blade power and status
LEDs. You can enable this LED to illuminate on both CP blades so that you can
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configuration.
Note: Half duplex operation is not supported at 10 or 100 Mbps speed.
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