HP Cluster Platform Cabling Tables v2010 Overview page 69

the InfiniBand switch module must be installed in the corresponding interconnect module bays (bays 3 and
4, bays 5 and 6, or bays 7 and 8). For more information about interconnect bay numbering, see
"Interconnect module bay numbering (on page 67)."
A full-height server blade can support an additional InfiniBand mezzanine option in mezzanine 3 connector,
along with a second double-wide InfiniBand switch module installed in interconnect bays 7 and 8 in the rear
of the enclosure. In this configuration, a full-height server blade configuration can be viewed as having a 1:1
I/O ratio. The table below lists the bandwidth (BW) ratios of different server blade types for various c-Class
InfiniBand switch modules used in HP Cluster Platform BladeSystem configurations.
Server blade type One 24-port IB
Single density,
full-height
Single density,
half-height
Double density, half
height
Installing an HP BladeSystem c-Class InfiniBand Switch Module
Before installing an InfiniBand switch module in an enclosure, it may be necessary to remove the cable
bracket, if installed. If the cable bracket must be removed, reverse the installation procedure described in the
HP BladeSystem c-Class Enclosure Cable Management Bracket Installation Guide. In most instances, it is not
necessary to remove the cables from the bracket. However, it might be necessary to remove the cables from
the switch module.
To install the switch module:
Remove any devices or blanks installed in the bay.
1.
Remove the device bay divider, if installed.
2.
Two 24-port IB
module per modules per
enclosure enclosure
1:1 BW —
2:1 BW 1:1 BW
— 2:1 BW
One 32-port IB Two 32-port IB
module per modules per
enclosure enclosure
1:1 BW —
2:1 BW —
— 1:1 BW
HP ProLiant BL c-Class Server Blades 69