Optimally Configuring the Sun Fire X2250 and Sun Fire X4600 Servers

Intro

For maximum I/O performance on these servers, please enable the PCI-E Max Payload and the Snoop Filter (SF) Bypass settings.

Setup

The following two topics are quoted from the Sun Fire X2250 Server Product Notes (http://docs.sun.com/source/820-4594-17/index.html):

PCI-E Max Payload

The Sun Fire X2250 server includes the PCI-E Max Payload setting in the BIOS setup menu.
To access this setting, select F2 during system boot to enter the system BIOS. Select Advanced > PCI Configuration.

SF Bypass

The Sun Fire X2250 server includes the SF Bypass setting in the BIOS setup menu. SF Bypass enables and disables the Snoop Filter.
To access this setting, select F2 during system boot to enter the system BIOS. Select Advanced > Memory.