Standalone vs. Online Diagnostics
When the system unit attempts to boot in service mode (from either the default or
custom boot list) and locates a diagnostics CD-ROM before any other bootable
image, then the system unit starts standalone diagnostics.
Standalone diagnostics can be used on system units installed with any supported
operating system.
When the system unit attempts to boot in service mode (from either the default or
custom boot list) and first locates a bootable image on disk drive or network
connection, then the system unit starts online diagnostics.
Online diagnostics can only be used on system units installed with the AIX operating
system.
Because the type of diagnostics started (standalone or online) depends on the
source from which they are loaded, changing the boot list used during system startup
can affect which diagnostics are run.
Recommended Boot Options
The procedures under “Service Mode Boot: Loading Diagnostics” on page 6-2
produce the following recommended results:
Default boot list (F5 or 5 key) with diagnostics CD-ROM inserted loads
Standalone Diagnostics.
Custom boot list (F6 or 6 key) without diagnostics CD-ROM inserted loads
Online Diagnostics, if AIX is installed on a device in the custom boot list.
6-4 7043 43P Series Service Guide
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