Step 4Determine 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.Verify with the system administrator and users that the system maybe turned off. If so, then turn off the system unit and go to “Step 7” onpage 89.YES Go to “Step 5”.Step 5Diagnostic tests can be run on many resources while the operating system is running.However, you can obtain more extensive problem isolation by running OnlineDiagnostics in Service mode.Do you want to run the Online Diagnostics in Service mode?NO Go to “Step 6”.YES Do the following to shut down your system:1. At the system prompt, stop the operating system using theappropriate command for your operating system.2. After the operating system is stopped, turn off the system unit.3. 3. Go to “Step 7” on page 89.Step 6This step invokes the Online Diagnostics in concurrent mode.1. Log in as root user.2. Enter the diag command.3. Wait until the Diagnostic Operating Instructions are displayed, or wait for threeminutes.Are the Diagnostic Operating Instructions displayed without any obvious consoledisplay problems?NO Do the following to shut down your system:1. At the system prompt, stop the operating system using theappropriate command for your operating system.2. After the operating system is stopped, turn off the system unit.3. 3. Go to “Step 7” on page 89.YES Go to “Step 10” on page 90.88 Installation Guide
