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

Modular System Hardware
HP Integrity NonStop NS-Series Planning Guide—529567-005
5-21
Optional UPS and ERM
systems. The maintenance switch mounts in the 19-inch rack within a modular cabinet,
but no restrictions exist for its placement.
This illustration shows an example of two maintenance switches installed in the top of
a cabinet:
Each system requires multiple connections to the maintenance switch:
•
One connection to each of the two ServerNet switch boards in one I/O adapter
module (IOAM) enclosure
•
At least two connections to any two of these devices for the OSM Service
Connection and OSM Notification Director:
•
Gigabit 4-port ServerNet adapter (G4SA) installed in an IOAM enclosure
•
An Ethernet 4 ServerNet adapter (E4SA), Fast Ethernet ServerNet adapter
(FESA), or Gigabit Ethernet ServerNet adapter (GESA) installed in a NonStop
S-series I/O enclosure equipped with IOMF 2 CRUs
•
One connection for each of the two p-switches
•
One connection to each of the optional UPS modules
•
One connection for each system console running OSM
The preferred configuration is connections to two maintenance switches:
•
Connect one of the two IOAM enclosure maintenance entities to each switch.
•
Connect the processor switch for the X fabric to one of the maintenance switches
and the processor switch for the Y fabric to the other maintenance switch.
Optional UPS and ERM
An uninterruptible power supply (UPS) is optional but recommended where a site UPS
is not available. You can use any UPS that meets the modular cabinet power
requirements for all enclosures being powered by the UPS. One UPS option is the HP
R5500 XR UPS.
VST345.vsd
Maintenance
Switch
( two installed)
RJ-45 EtherNet
Connections