IBM H SERIES RS/6000, User Manual

Page: 222 / 290

Step 3
Determine if the operating system is accepting commands.
Is the operating system accepting commands?
NO The system must be turned off in order to run diagnostics.
1. Verify with the system administration and users that the system may
be turned off. If so, then turn off the system unit and go to “Step 6.”
YES Go to “Step 4.”
Step 4
Diagnostic tests can be run on many resources while the operating system is
running. However, more extensive problem isolation is obtained by running Online
Diagnostics in Service mode.
Do you want to run the Online Diagnostics in Service mode?
NO Go to “Step 5.”
YES Do the following to shut down your system:
1. At the system prompt, stop the operating system using the proper
command for your operating system.
2. After the operating system is stopped, power off the system unit.
3. Go to “Step 6.”
9-2
RS/6000 Enterprise Server Model H Series User's Guide