HP NonStop NS-series

Processors and Components: Monitoring and
Recovery
HP Integrity NonStop NS-Series Operations Guide—529869-005
9-3
Overview of the NonStop Blade Complex
For Integrity NonStop NS16000 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).
Figure 9-1. Modular NSAA With One NonStop Blade Complex and Four
Processors
CPU
Slice B
CPU
Slice A
CPU
Slice C
VST727.vsd
Logical
Processor
0
Logical
Processor
1
Logical
Processor
2
Logical
Processor
3
PE
0
PE
0
PE
0
PE
1
PE
1
PE
1
PE
2
PE
2
PE
2
PE
3
PE
3
PE
3
LSU
0
X ServerNet
Switching
X
ServerNet
Fabric
External
I/O
Modular
I/O
S-Series
I/O
Y ServerNet
Switching
Y
ServerNet
Fabric
Modular
I/O
S-Series
I/O
LSU
2
LSU
3
LSU
1
LSU
External
I/O
External
I/O
External
I/O