Installation guide

additional I/O capabilities will be required to more efficiently utilize these
extra computes.
3.6.1 Adding CPUs to an Existing System
At boot time, the system determines the number of CPUs available. Adding
computing power to your multiprocessing systems is as simple as installing
the processor board and rebooting the system. You do not have to
reconfigure the kernel; you may have to modify any tuning that was done
to limit the number of processors available, and you may need to install a
Product Authorization Key (PAK). For more information on PAKs, see the
Software License Management manual.
3.6.2 Unattended Reboots on Multiprocessor Systems
If a processor in a multiprocessor system fails, the operating system notes
which processor failed, then automatically reboots the system. Although
the operating system continues, you must manually restart the failed
processor. For instructions, see the Installation Guide.
3.7 Setting and Resetting the System Clock
The system has an internal clock that you set when you install the system.
The clock maintains the time and date whether the power is on or off.
Nevertheless, there are occasions when you might need to reset the time or
date. For example, with battery-powered clocks, you might need to reset
the time as a result of battery failure; or you may need to synchronize
system time with standard time.
To set the date and time, log in as root and use the following syntax with
the date command:
date [[cc]yy]mmddHHMM[.ss]
cc
Designates the first two numbers of the year (century) as a 2-digit integer.
yy
Designates the year as a 2-digit integer
MM
Designates the month as a 2-digit integer
dd
Designates the day as a 2-digit integer
HH
Designates the hour as a 2-digit integer, using a 24-hour clock
mm
Designates the minutes as a 2-digit integer
3–14 Starting Up and Shutting Down the System