Silicon Graphics 2400 Owner's Manual page 106

Chapter 6: Removing and Replacing Customer-Replaceable Units
86
Powering Off a Multi-Module Rack Configuration
See Chapter 7, "Using the System Controller" then use these procedures to completely
power down an entire multi-rack configuration.
1. Power down the individual system modules (see "Powering Off an Individual
Module System" on page 82).
2. Power off the individual racks. It is recommended that you start from the rightmost
rack and then continue with the rack to the left. This helps ensure a cleaner and
more efficient shutdown process.
3. Turn off the rack with the MMSC last (see Figure 6-6).
4. Turn off the PDU on the last rack (see Figure 6-5).