HP XC System Software 3.2.1 manual 43

Figure 2-9 External Network Connections: Half-Height Server Blades and NIC1 and NIC2 in Use

HALF HEIGHT BLADE FULL HEIGHT BLADE

Non-Blade Server						Non-Blade Server
					PCI SLOT						PCI SLOT
MGT	NIC			NIC	PCI SLOT	MGT	NIC		NIC		PCI SLOT
					Ethernet PCI Cards
C-Class Blade Enclosure
									Admin ProCurve 2800 Series Switch
					Interconnect bay 1
NIC 1		Ethernet
NIC 2	Mezzanine				Interconnect bay 2
			Cards
NIC 3
NIC 4								Console ProCurve 2600 Series Switch
					Interconnect bay 3
MEZZ 1
					Interconnect bay 4
MEZZ 2
MEZZ 3
					Interconnect bay 5
iLO2									Gigabit Ethernet Interconnect Switch
					Interconnect bay 6
NIC 1
					Interconnect bay 7
NIC 2
MEZZ 1					Interconnect bay 8
MEZZ 2										External Public Network
iLO2					ONBOARD
					ADMINISTRATOR

2.6.3Configuring the External Network: Option 3 - Non Gigabit Ethernet Interconnect Clusters

The administration network requires only one network interface, NIC1, on clusters that do not use Gigabit Ethernet as the interconnect (that is, they use InfiniBand or the interconnect on the administration network).

On these non Gigabit Ethernet interconnect clusters, you have two configuration methods to configure an external network connection, and the option you choose depends on whether the collection of nodes requiring external connections includes half-height server blades.

•If only full height server blades require external connections, you can use NIC3 for the external network. This is similar to the way the external connection is configured in Figure 2-8 (page 42), and it saves the cost of an additional interconnect device in bay 2.

•If half-height server blades require external connections, you cannot use NIC3 because half height server blades do not have a third NIC. In this case, you must use NIC2 as the external connection as shown in Figure 2-8 (page 42). This configuration requires an Ethernet interconnect module to be present in bay 2.

Figure 2-8 (page 42) also shows the use of built-in NICs in the non-blade server nodes for the external connection, but this varies by hardware model.

If the hardware configuration contains non-blade server nodes, see Chapter 4 (page 59) for information about which port to use for the external network.

2.6 Cabling for the External Network 43