Silicon Graphics Altix ICE 8000 Series, Краткое руководство пользователя

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1: SGI Altix ICE 8000 Series System Overview
• Local
This is a connection to the leader node at the top of the rack in which this CMC is
located. Only one CMC (of the possible four) is connected to the leader node, as
shown in Figure 1-2 on page 7.
• LL
Used to connect service nodes and service storage nodes. The RL jack in the far
left CMC connects to the LL jack of the right adjacent CMC to create or grow the
Ethernet network. Figure 1-2 on page 7 shows this daisy chaining.
• RL
Used to connect service nodes and service storage nodes. The RL jack in the far
left CMC connects to the LL jack of the right adjacent CMC to create or grow the
Ethernet network. Figure 1-2 on page 7 shows this daisy chaining.
• L58
This is a connection for the IEEE 1588 timing protocol from this CMC to the one
immediately to the left. If this is the left-most rack, this jack is unconnected.
• R58
This is a connection for the IEEE 1588 timing protocol from this CMC to the one
immediately to the right. If this is the right-most rack, this jack is unconnected.
A NAS cube storage service node uses both the LL and RL jacks to connect to the
Altix ICE system as shown in Figure 1-3 on page 12.
For small, one IRU configurations, the L58 and R58 ports (see Figure 1-5 on page 15)
can be used to connect service nodes.
VLANs
Several virtual local area networks (VLANs) are used to isolate Ethernet traffic
domains within the cluster. The physical Ethernet is a shared network that has a
connection to every node in the cluster. The admin node, leader nodes, service nodes,
compute nodes, CMCs, BMCs, all have a connection to the Ethernet. To isolate the
broadcast domains and other traffic within the cluster, VLANs are used to partition it
and are, as follows:
•
VLAN_1588
16 007–5450–001