Network Device Installation Guide

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Cisco MDS 9500 Series Hardware Installation Guide
OL-17467-02
Chapter 1 Product Overview
Supervisor Modules
Supervisor-1 Modules
The Cisco MDS 9509 and 9506 Directors support up to two Supervisor-1 or Supervisor-2 modules that
can be installed in slots 5 and 6 only. The main functions and components of the Supervisor-1 modules
are as follows:
• Control and Management, page 1-21
• Crossbar Switching Fabric, page 1-22
• Processor, page 1-22
• Port Interfaces, page 1-22
• LEDs on the Supervisor-1 Module, page 1-23
Note Supervisor-1 is not supported on the Cisco MDS 9513 Director.
Figure 1-14 shows a Cisco MDS 9500 Series Supervisor-1 module.
Figure 1-14 Cisco MDS 9500 Series Supervisor-1 Module
Control and Management
The supervisor modules provide the following control and management features:
• A redundant central arbiter that provides traffic control and access fairness.
• A nondisruptive restart of a single failing process on the same supervisor.
A kernel service running on the supervisor module keeps track of the high availability policy of each
process and issues a restart when a process fails. The type of restart issued is based on the process’s
capability:
– Warm or stateful (state is preserved)
– Cold or stateless (state is not preserved)
1 Status, System, Active, and Pwr
Mgmt LEDs
1
1. See Table 1-5 on page 1-24 for status LED descriptions.
6 CompactFlash LED
2 Reset button 7 CompactFlash eject button
3 Console port 8 CompactFlash slot
4 MGMT 10/100 Ethernet port (with
integrated Link and Activity LEDs)
9 Asset tag
5 COM1 serial port
77688
3 4 5 7 8
6
2
1
9