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To meet extreme density goals, the half-height HP BL2x220c server blade includes two server nodes.
Each node can support two quad-core Intel® Xeon® 5400-series processors and a slot for a
mezzanine board. That equals up to 32 nodes (256 cores) per c7000 enclosure. Each c7000
enclosure contains two HP 4x QDR InfiniBand Switch Blades. Figure 8 shows how using the dual-node
BL2x220c blade lets you deploy 576 nodes in half as much rack space.
Figure 8. HP BladeSystem c-Class 576-node cluster configuration using BL2x220c blades
HP c7000 Enclosure #1
16 HP BL2x220c
server blades
w/4x QDR HCAs
16
36-Port QDR
IB Switch #1
HP QDR IB
Switch Blade
Total nodes 576 (2 per blade)
Racks required for servers Four 42U, one 36U
(assumes four c7000 enclosures per rack)
Interconnect 1:1 full bandwidth (non-blocking),
3 switch hops maximum, fabric redundancy
36-Port QDR
IB Switch #2
36-Port QDR
IB Switch #16
16
HP c7000 Enclosure #2
16 HP BL2x220c
server blades
w/4x QDR HCAs
16
HP QDR IB
Switch Blade
16
HP QDR IB
Switch Blade
HP c7000 Enclosure #18
16 HP BL2x220c
server blades
w/4x QDR HCAs
16
HP QDR IB
Switch Blade
16
HP QDR IB
Switch Blade
HP QDR IB
Switch Blade
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