HP Cisco MDS 9120 Cisco MDS 9000 Family Fabric Manager Configuration Guide - R - Page 389

Chapter 18 Managing System Hardware About Crossbar Management Send documentation comments to [email protected] 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. OL-17256-03, Cisco MDS NX-OS Release 4.x Cisco MDS 9000 Family Fabric Manager Configuration Guide 18-9