NonStop NS1000 Planning Guide (H06.07+)

Control, Configuration, and Maintenance Tools

HP Integrity NonStop NS1000 Planning Guide—542527-003

B-8

Fault-Tolerant Configuration

You can configure the dedicated service LAN as described in the OSM Migration

Guide. HP recommends that you use a fault-tolerant LAN configuration. A fault-tolerant

configuration includes these connections to two maintenance switches:

•

Connect one system console to each maintenance switch.

•

Connect one of the two ServerNet switch boards in the IOAM enclosure to each

maintenance switch.

•

Connect one G4SA to each maintenance switch.

•

Connect one maintenance switch to an HP extension bar that is powered by the

UPS. HP extension bars are installed in place of a PDU on the rear right side of the

modular cabinet.

Caution. To avoid possible conflicts on the LAN:

•

If the configuration includes two maintenance switches, install and configure one switch

completely, including assigning its IP address, before you install the other.

•

Only one connection between the maintenance switches is permitted. More than one

connection overloads network traffic, rendering the dedicated service LAN unusable.

•

If ServerNet switch boards in the IOAM enclosure will have static IP addresses, configure

one completely, including assigning the IP address, before you configure the other.