NonStop NS-Series Planning Guide (H06.04+)

Control, Configuration, and Maintenance Tools
HP Integrity NonStop NS-Series Planning Guide—529567-005
B-15
System-Up Dedicated Service LAN
One possible fault-tolerant configuration is a pair of G4SAs (each in a different IOAM)
with a dedicated service LAN connected to the A port on each G4SA. The B port is
then available to support the SWAN.
System-Up Dedicated Service LAN
When the system is up and the OS running, the ME connects to the NonStop
NS-series system’s dedicated service LAN using one of the PIFs on each of two
G4SAs. This connection enables OSM Service Connection and OSM Notification
Director communication for maintenance in a running system.
For a fault-tolerant dedicated service LAN, two G4SAs are required, with one
connected to each ServerNet fabric, X and Y. These G4SA can reside in modules 2
and 3 of the same IOAM enclosure or in module 2 of one IOAM enclosure and module
3 of a second IOAM enclosure. When the G4SA provides connection to the dedicated
service LAN, use the slower 10/100 Mbps PIF A rather than one of the high-speed
1000 Mbps Ethernet ports of PIF C or D.
If NonStop S-series I/O enclosures are connected to the system, one G4SA can reside
in either module 2 or 3 of an IOAM enclosure and in a NonStop S-series Ethernet
adapter (such as an E4SA, FESA, or GESA) in either slot 53 or 54 of the NonStop
S-series I/O enclosure. When installing Ethernet adapters for the dedicated service
LAN in an IOAM enclosure for an Integrity NonStop NS-series system and in a
NonStop S-series I/O enclosure, it is important that each Ethernet adapter connect to
the X and Y fabric. For information about the NonStop S-Series I/O enclosure and the
Ethernet adapters that can be installed in it, see the NonStop S-Series Planning and
Configuration Guide.
VST340.vsd
Module 2
Module 3
Maintenance Switch
IOAM
Enclosure
(Group
110)
G4SA Ethernet
PIF Connectors
Cable to
Maintenance
Switch
B
A
C
D