HP HyperFabric manual HF1 Speed and Latency w/ HMP Applications

Planning the Fabric

Hyper Messaging Protocol (HMP)

Instead, all of the traffic will be sent over a single connection with no failover capability and without the performance increase that would come from balancing the load over multiple connections.

•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 (fibre): The maximum distance is 200m (4 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 fibre ports.

•HMP is supported on the PCI 4X adapters, A6092A and A6386A.

•HMP is supported on A400, A500, rp2400, rp2450, rp54xx (N-class), rp74xx (L-class), rp8400, and Superdome servers running 64 bit HP-UX.

•HMP is supported on J-class, B-class and C-class workstations running 64 bit HP-UX when patch number PHNE_25485 is installed.

•HMP is supported on HyperFabric from HF version B.11.00.11 forward and from HF version B.11.11.01 forward.

•HMP is not supported on V-class, A180 or A180C servers.

•HMP is not supported on 32 bit versions of HP-UX.

•Speed and Latency

Table 2-4	HF1 Speed and Latency w/ HMP Applications
	Server Class	Maximum Speed	Latency
	rp 7400	1.28 + 1.28 Gbps full duplex per	< 26 microsec
		link

Table 2-5	HF2 Speed and Latency w/ HMP Applications
	Server Class	Maximum Speed	Latency
	rp 7400	2 + 2 Gbps full duplex per link	< 22 microsec

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