ServerNet Cluster 6780 Planning and Installation Guide (G06.24+, H06.03+)
ServerNet Cluster Overview
ServerNet Cluster 6780 Planning and Installation Guide—527301-004
1-11
Fiber-Optic Cables
Fiber-Optic Cables
For more information, refer to Task 7: Plan for the Fiber-Optic Cables on page 3-15.
•
Modular 
ServerNet 
expansion 
boards 
(MSEBs)
4 to 128 2 (one per 
external 
fabric)
The MSEBs must be installed in slot 51 
and slot 52 of the group 01 system 
enclosure. MSEBs in any other system 
enclosure cannot be used for 
connections to the cluster switches.
•
NNA PICs 
installed in 
MSEBs
4 to 128 2 (one per 
each 
MSEB)
Two NNA PICs are required for each 
NonStop S-series server (one per 
external fabric). MSEBs in group 01, 
slots 51 and 52 must contain an SMF 
NNA PIC in port 6. Other ports must 
contain the appropriate PICs to enable 
connectivity to the SEBs or MSEBs to 
which they connect.
Table 1-6. NonStop S-Series Server Components Required for 
Clustering (page 2 of 2)
Hardware 
Component
Required 
for 
Layered 
Topology
Required 
for each 
node Notes










