NonStop NS-Series Planning Guide (H06.05+)

Control, Configuration, and Maintenance Tools
HP Integrity NonStop NS-Series Planning Guide—529567-008
B-11
Fault-Tolerant Configuration
This illustration shows a fault-tolerant LAN configuration with two maintenance
switches:
VST072.vsd
Maintenance
Switch 1
IOAM Enclosure
Maintenance
Switch 2
10/100 ENET
Port,
ServerNet
Switch Boards
Processor
Switch,
X Fabric
Maintenance PIC -
Enet (Slot 1, Port 3)
11 1310 12
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
12 34 5678 9
Processor
Switch,
Y Fabric
11 1310 12
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
1234 5 678 9
G4SA
(Y Fabric)
Module 3,
Slot 5, Port A
G4SA
(X Fabric)
Module 2,
Slot 5, Port A
UPS (optional)
G4SA G4SA G4SA G4SA FCSA FCSA FCSA FCSA FCSA FCSA
Optional
Connection to a
Secure Operations
LAN (One or Two
Connections)
ServerNet
Switch Board
Module 2
ServerNet
Switch Board
Module 3
Secure
Operations LAN
Remote
Service
Provider
DHCP
DNS
server
(optional)
Modem Backup Sy stem Console
Remote
Service
Provider
ModemPrimary Sy stem Console
Connections to Switch 1
Connections to Switch 2