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18-9
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 18 Managing System Hardware
About Crossbar Management
Operational Considerations When Removing Crossbars
You can mix and match Generation 1 and Generation 2 hardware on the Cisco MDS 9500 Series
Directors running Cisco MDS SAN-OS 3.0(1) or later without compromising the integrity and
availability of your SANs based on Cisco MDS 9500 Series Directors.
To realize these benefits, you must consider the following operational requirements when removing
crossbars for maintenance activities:
• Gracefully Shutting Down a Crossbar, page 18-9
• Backward Compatibility for Generation 1 Modules in Cisco MDS 9513 Directors, page 18-10
Gracefully Shutting Down a Crossbar
You must perform a graceful shutdown of a crossbar (integrated or external) before removing it from the
MDS 9500 Series Director.
To perform a graceful shutdown of external crossbar switching modules in a Cisco MDS 9513 Director
using Device Manager, follow these steps:
Step 1 Right-click the supervisor module. Crossbars are indicated with a green X (see Figure 18-5).
You see the context menu for the supervisor module.
Figure 18-5 Shutting Down a Crossbar
Step 2
Select Out of Service to gracefully shut down the integrated crossbar.
Note To reactivate the integrated crossbar, you must remove and reinsert or replace the Supervisor-1
or Supervisor-2 module.
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