Loading The Operating System; Hyper-Threading Cpu Feature; Hyper-Threading Tm Cpu Feature - Sun Microsystems Sun Fire V60x Manual

4.6

Loading the Operating System

The bootup process eventually takes you to the point where the operating system
loads.
Note – If you have a Sun Fire V60x server or a Sun Fire V65x server with the Solaris
operating environment preinstalled, the operating system loads during the bootup
process. If you have a server without a preinstalled operating system, you need to
install the operating system at this time.
In all cases, the serial port on the rear panel is operational and you can redirect boot
messages to an external console. See "Configuring an External Serial Console" on
page 4-17 for details.
4.7 Hyper-threading
The Sun Fire V60x and Sun Fire V65x servers feature Hyper-threading
processors. Enabling Hyper-threading causes each physical CPU to act as two logical
CPUs. Enabling Hyper-threading on a dual processor Sun Fire V60x server or Sun
Fire V65x server causes the operating system to recognize four distinct processors.
Note – Hyper-threading is disabled, by default, when the Sun Fire V60x and Sun
Fire V65x servers are shipped.
Hyper-threading may be enabled or disabled in the system BIOS configuration menu
by using the following instructions:
1. Press the F2 key during the power-on self test (POST) while the server is booting
to enter the BIOS configuration menu.
2. Using the down arrow key, scroll to "Processor Settings" then press the enter key.
3. Toggle the feature "Hyper-threading" using the enter and arrow keys.
4. Press the Esc key once to exit the "Processor Settings" menu.
5. Press the left arrow key to highlight the "Exit" menu.
6. Press the Enter key to select "Exit Saving Changes."
4-16 Sun Fire V60x and Sun Fire V65x Servers—Troubleshooting Guide • November 2003
CPU Feature
TM
TM
capable