IBM ThinkPad R30, Operator'S Manual

Page: 117 / 276

Using SystemGuard
3-55
How to Disable and Enable Processors
In the SMP servers, it is possible to disable/enable processors. A suspected faulty processor
can be disabled so that the system can run without it. The processors can be
disabled/enabled through the STAND-BY MENU, MAINTENANCE MENU, Diagnostics, or
through AIX commands.
Enabling/Disabling Processors through the Stand-By Menu
1. Enter the STAND-BY MENU; refer to the STAND-BY MENU section on page 3-12.
2. From the STAND-BY MENU, enter
3
to select the Set Configuration menu. A first-level
screen similar to the following appears:
Set Configuration
00 CPU0 10 UNIT0 & dev
01 CPU1 11 UNIT1 & dev
02 CPU2 12 UNIT2 & dev
03 CPU3 13 UNIT3 & dev
04 MC0 14 UNIT4 & dev
05 MC1 15 UNIT5 & dev
06 MC2 16 UNIT6 & dev
07 MC3 17 UNIT7 & dev
08 basic MCA
09 exp MCA
Select(x:exit): 01
The Set Configuration screen displays the units and devices that can be configured,
along with their menu index number. At this step,
CPU0
stands for the CPU card
0
, not
processor 0.
3. Enter an index number for a CPU card to be looked at. If you select CPU1 (01), for
example, the following screen appears:
CPU1 Set | Status
00 CPU0 C C
01 CPU0 D
02 CPU0 T
03 CPU1 C C
04 CPU1 D
05 CPU1 T
Select(x:exit): 04
4. All the CPUs and their statuses are displayed, where:
•
C
stands for configured
•
D
stands for disabled
•
T
stands for temporarily disabled. It means that at the next power on or reset,
the device is automatically reconfigured.