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Figure 2-3 Interconnection Diagram for a Large HP XC Cluster of Server Blades
Enclosure 1
GigE Switch
GigE Switch
Region 1 Region 8
/4 /4
ProCurve 2650
Primary OA Ext LinkSecondary OA Ext Link
GigE Switch
Enclosure 2
Primary OA Ext LinkSecondary OA Ext Link
GigE Switch
Enclosure 3
Primary OA Ext LinkSecondary OA Ext Link
GigE Switch
Enclosure 4
Primary OA Ext LinkSecondary OA Ext Link
GigE Switch
Enclosure 32
OA
Ext Link
Enclosure 32
GigE
Switch 1
. . .
. . .
Enclosure 481
GigE Switch
ProCurve 2650
Primary OA Ext LinkSecondary OA Ext Link
GigE Switch
Enclosure 482
Primary OA Ext LinkSecondary OA Ext Link
GigE Switch
Enclosure 483
Primary OA Ext LinkSecondary OA Ext Link
GigE Switch
Enclosure 484
Primary OA Ext LinkSecondary OA Ext Link
GigE Switch
Enclosure 512
OA
Ext Link
Enclosure 512
GigE
Switch 1
. . .
2.3 Cabling for the Administration Network
For server blades, the administration network is created and connected through ProCurve model
2800 series switches. One switch is designated as the root administration switch and that switch
can be connected to multiple branch administration switches, if required.
NIC1 on each server blade is dedicated as the connection to the administration network. NIC1
of all server blades connects to interconnect bay 1 on the enclosure.
The entire administration network is formed by connecting the device (either a switch or a
pass-thru module) in interconnect bay 1 of each enclosure to one of the ProCurve administration
network switches.
Non-blade server nodes must also be connected to the administration network. See Chapter 3
(page 45) to determine which port on the node is used for the administration network; the port
you use depends on your particular hardware model.
Figure 2-4 illustrates the connections that form the administration network.
2.3 Cabling for the Administration Network 37