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Technical stuff

Cabling issues

Head nodes

Each head node has 6 network connections on its back 
+------------------------------------------------+
|                                                |
|                             eth2          IPMI |
|                                    RAID        |
|                             eth3               |
|            eth0 eth1                           |
+------------------------------------------------+

These connect to
Port type
eth0 data network (TRX in rack #24)
eth1 unused
eth2 external (Cisco, line card #5, external network)
eth3 mgmt. network (same rack)
RAID mgmt. network (same rack)
IMPI mgmt. network (same rack)

Data nodes

Each head node has 6 network connections on its back 
+------------------------------------------------+
|                                                |
|                             eth2          IPMI |
|                                    RAID        |
|                             eth3               |
|            eth0 eth1                           |
+------------------------------------------------+

These connect to
Port type
eth0 data network (TRX in compute rack)
eth1 unused
eth2 external (Cisco, line card #6, internal AEI network)
eth3 mgmt. network (same rack)
RAID mgmt. network (same rack)
IMPI mgmt. network (same rack)

-- CarstenAulbert - 10 Jul 2008
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Topic revision: r1 - 10 Jul 2008, CarstenAulbert
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