HyperFabric Configuration Guidelines

Hyper Messaging Protocol (HMP)

A maximum of 8 HyperFabric adapter cards are supported per

instance of the HP-UX operating system. The actual number of

adapter cards a particular node is able to accommodate also depends

on slot availability and system resources. See node specific

documentation for details.

A maximum of 8 configured IP addresses are supported by the

HyperFabric subsystem per instance of the HP-UX operating system.

• Maximum Number of Switches:

You can interconnect (mesh) up to 4 switches (16-port copper, 16-port

fiber or Mixed 8 fiber ports / 4 copper ports) in a single HyperFabric

cluster.

• Trunking Between Switches (multiple connections):

Trunking between switches can be used to increase bandwidth and

cluster throughput. Trunking is also a way to eliminate a possible

single point of failure. The number of trunked cables between nodes

is only limited by port availability. To assess the effects of trunking

on the performance of any particular HyperFabric configuration,

contact your HP representative.

• Maximum Cable Lengths:

HF1 (copper): The maximum distance between two nodes or between

a node and a switch is 60 ft. (2 standard cable lengths are sold and

supported: 35 ft. and 60 ft.)

HMP supports up to four HF1 switches connected in series with a

maximum cable length of 60 ft. between the switches and 60 ft.

between switches and nodes.

HF2 (fiber): The maximum distance is 200m (Four standard cable

lengths are sold and supported: 2m, 16m, 50m and 200m).

HMP supports up to four HF2 switches connected in series with a

maximum cable length of 200m between the switches and 200m

between switches and nodes.

HMP supports up to 4 hybrid HF1/HF2 switches connected in series

with a maximum cable length of 60 ft. between copper ports and

200m between fiber ports.

• HMP is supported on A400, A500, rp2400, rp2450, rp54xx (N-class),

rp74xx (L-class), rp8400, and Superdome servers running 64-bit

HP-UX.