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Chapter 4: System Configurations
Figure 4-3 shows a single-module rackmount server system. This configuration can
house up to four Vault drive boxes and two to eight CPUs. If desired, this rack can be
cabled to other racks using the CrayLink Interconnect. This allows the other SGI systems
in the configuration to have high-speed access to those drives.
Table 4-2 Dual Module Chassis Configuration
Hardware Component Number Range
CPU Node boards 2 to 8
64-bit CPUs 2 to 16
Main memory per Node board 64 MB to 4 GB (using 256 MB memory DIMMs)
Main memory per chassis 128 MB to 32 GB (using eight Node boards)
Number of internal SCA drives 2 to 10
Number of usable XIO slots Up to 24 for a dual-module chassis
Number of Origin Vaults 1 only
I/O interfaces - One to two (single-ended) SCSI connector
- Two or four DB-9 RS-232 or RS-422
serial connectors
- Two or four hardware interrupt lines
- One to two 10/100Base-T Ethernet connector