Silicon Graphics 2400, Owner'S Manual

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Chapter 6: Removing and Replacing Customer-Replaceable Units
General Procedures
This section describes related activities that are common to most CRU installation and
removal procedures for the SGI 2400 and 2800 rackmount chassis.
Powering Off a Rackmount System
You can either power off an individual module or power off the entire rack configuration
using the multimodule System Controller (MMSC). If you power off an individual
module, the other module(s) in the configuration can still operate fully.
Powering Off an Individual Module System
Use these procedures to power off a module in a rack:
1. Ensure and verify that the desired file systems are backed up and make sure that all
users are off the target system.
2. Become superuser, then shut down the system software as follows:
# shutdown -y g0
3. Turn the module controller key switch to the Standby position (see Figure 6-2).