NonStop NS-Series Operations Guide (H06.12+)

Figure 9-1 Modular NSAA With One NonStop Blade Complex and Four Processors
For Integrity NonStop NS16000 series servers, ServerNet communications are controlled by
processor switch (or p-switch) modules; one for each of the ServerNet fabrics (represented by X
and Y ServerNet Switching blocks in Figure 9-1). P-switches connect input/output components
to the NS-series processors. I/O components usually tap into the ServerNet fabrics through
ServerNet adapters in IOAMs (represented by Modular I/O blocks in the diagram). These adapters
provide the system I/O to fibre channel storage devices and gigabyte Ethernet communications
networks. However, P-switches also provide connectivity for legacy I/O through I/O enclosures
equipped with IOMF2s (represented by S-Series I/O blocks in the diagram).
Integrity NonStop NS14000 systems do not have p-switches and cannot be connected to legacy
NonStop S-series I/O enclosures. For more information, see Integrity NonStop NS14000 ServerNet
Connectivity on page 7-3).
Overview of the NonStop Blade Complex 105