
NUMAlink Cabling the System IRUs
NUMAlink Cabling the System IRUs
Some configurations of an Altix 450 system will consist of either two or more IRUs. This section describes how to cable together these multiple units. If your system was shipped with all the cables
Note: If your system is made up of a single module, you can skip this section and proceed to “Cabling the System IRUs to a Power Source” on page 31 for instructions to connect your system to power.
The primary IRU module (housing the system disk), connects to additional Altix 450 IRUs via the module’s front NUMAlink connectors. Figure
Note: Before you connect two Altix 450 IRUs to each other, you must assign unique system ID numbers to the compute modules, as follows:
1.Designate one of the IRU modules as the master server and the other IRU chassis as the slave.
2.Connect a console to the master IRU (see “Connecting the System Console” on page 36), and then power on the IRU (see “Powering the System On and Off” on page 38).
3.Use the <slotnumber> L1 command to set the secondary IRU’s ID number to a higher number than the primary IRU’s ID number. For example, if the master IRU unit’s L1 prompt indicates that its ID number is 01
See the SGI L1 and L2 Controller Software User’s Guide
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