Numalink Configuration - Silicon Graphics Origin 350 User Manual

2: System Overview
NUMAlink Configuration
78
A NUMAlink configuration consists of one base compute module and up to seven
expansion compute modules that are interconnected via the NUMAlink module, as
shown in Figure 2-1 on page 67. This configuration can be housed in a 17U rack or a 39U
rack; however, the 17U rack can house only one NUMAlink module, one base compute
module, and up to five expansion compute modules. The 39U rack can house one or two
Origin 350 server systems, as shown in Figure 2-7.
In addition to the base and expansion compute modules, a NUMAlink configuration
supports the following PCI expansion devices: the MPX module and the PCI expansion
module. The number of each type of module is dependent on the following configuration
rules:
• A maximum of four MPX modules can reside in a NUMAlink configuration.
• The number of PCI expansion modules cannot exceed the number of compute
modules.
• The total number of compute modules, MPX modules, and PCI expansion modules
cannot exceed eight.
For example, a NUMAlink configuration can consist of one base compute module, three
expansion compute module, two MPX modules, and two PCI expansion modules.
The NUMAlink configuration also allows you to increase the amount of storage in your
system. If space is available in the rack, you can add TP900 storage modules to your
system or you can add additional storage racks to your system.
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