HyperFabric Configuration Guidelines

TCP/UDP/IP

In point-to-point configurations, the complexity and performance

limitations of having a large number of nodes in a cluster make it

necessary to include switching in the fabric. Typically, point-to-point

configurations consist of only 2 or 3 nodes.

In switched configurations, HyperFabric supports a maximum of 64

interconnected adapter cards.

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.

HyperFabric subsystem supports a maximum of 8 configured IP

addresses 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):

You can use trunking between switches 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 limited only 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. (Two standard cable lengths are sold and

supported: 35 ft. and 60 ft.)

TCP/UDP/IP 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).

TCP/UDP/IP 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.