HP Cluster Platform Introduction v2010 HP Cluster Platform Workgroup System To - Page 18

HP 4X DDR InfiniBand Interconnect, and InfiniBand Mezzanine HCAs

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1.2.1.2 HP 4X DDR InfiniBand Interconnect, and InfiniBand Mezzanine HCAs The HP 4X DDR (dual date rate) InfiniBand interconnect for HP BladeSystem c-Class is a double-wide interconnect module for the c-Class enclosure. It is based on the Mellanox InfiniScale III 4X DDR InfiniBand switch chip. The 4X DDR InfiniBand interconnect for HP BladeSystem c-Class provides 24 InfiniBand 4X DDR ports with 20 Gbps port-to-port connectivity. The ports are arranged as 16 downlinks to connect up to 16 server blades in the enclosure (up to eight in the Workgroup System Tower), and 8 uplinks to connect to the external InfiniBand switches to build an InfiniBand fabric, if applicable. All links conform to InfiniBand Trade Association (IBTA) specifications. Figure 1-4 shows the optional HP 4X DDR InfiniBand module being installed in a c-Class (c7000 shown) enclosure. The process to install the module is the same for the Workgroup System Tower, except it is installed in interconnect module bays 3 and 4 (IMB3/4) instead. Workgroup System Tower configurations are shipped with all of the modules installed, and this figure is provided for reference purposes only. Figure 1-4 4X DDR InfiniBand Interconnect 1 2 The following list describes the callouts shown in Figure 1-4: 1. 4X DDR InfiniBand interconnect 2. Latch Note: When the 4X DDR InfiniBand interconnect module is used in a Workgroup System Tower, it is installed in interconnect module bays 3 and 4. InfiniBand HCAs The HP 4X DDR InfiniBand dual-port mezzanine HCA (host channel adapter) for HP BladeSystem c-Class is based on ConnectX InfiniBand technology from Mellanox. The InfiniBand dual-port mezzanine HCA delivers low-latency and high-bandwidth for High-Performance Computing. The 4X DDR InfiniBand dual-port mezzanine HCA can be plugged into the PCI-Express connectors on the server blades. To obtain the best performance, HP recommends that the InfiniBand 18 Cluster Platform Workgroup System Tower Overview

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1.2.1.2 HP 4X DDR InfiniBand Interconnect, and InfiniBand Mezzanine HCAs
The HP 4X DDR (dual date rate) InfiniBand interconnect for HP BladeSystem c-Class is a
double-wide interconnect module for the c-Class enclosure. It is based on the Mellanox InfiniScale
III 4X DDR InfiniBand switch chip. The 4X DDR InfiniBand interconnect for HP BladeSystem
c-Class provides 24 InfiniBand 4X DDR ports with 20 Gbps port-to-port connectivity. The ports
are arranged as 16 downlinks to connect up to 16 server blades in the enclosure (up to eight in
the Workgroup System Tower), and 8 uplinks to connect to the external InfiniBand switches to
build an InfiniBand fabric, if applicable. All links conform to InfiniBand Trade Association (IBTA)
specifications.
Figure 1-4
shows the optional HP 4X DDR InfiniBand module being installed in a c-Class (c7000
shown) enclosure. The process to install the module is the same for the Workgroup System Tower,
except it is installed in interconnect module bays 3 and 4 (IMB3/4) instead. Workgroup System
Tower configurations are shipped with all of the modules installed, and this figure is provided
for reference purposes only.
Figure 1-4 4X DDR InfiniBand Interconnect
1
2
The following list describes the callouts shown in
Figure 1-4
:
1.
4X DDR InfiniBand interconnect
2.
Latch
Note:
When the 4X DDR InfiniBand interconnect module is used in a Workgroup System Tower, it is
installed in interconnect module bays 3 and 4.
InfiniBand HCAs
The HP 4X DDR InfiniBand dual-port mezzanine HCA (host channel adapter) for HP BladeSystem
c-Class is based on ConnectX InfiniBand technology from Mellanox. The InfiniBand dual-port
mezzanine HCA delivers low-latency and high-bandwidth for High-Performance Computing.
The 4X DDR InfiniBand dual-port mezzanine HCA can be plugged into the PCI-Express connectors
on the server blades. To obtain the best performance, HP recommends that the InfiniBand
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Cluster Platform Workgroup System Tower Overview