Technical data

Figure 5–8: MC1-to-MC2 Standard Hub Upgrade: Final Configuration

AlphaServer

Member

System 1

MC2

AlphaServer

Member

System 2

MC2

MC2 Hub

# 1

MC2 Hub

# 2

AlphaServer

Member

System 3

MC2

2/OPTO

0/OPTO

1/OPTO

ZK-1527U-AI

5.7.3 Upgrading a Virtual Hub Configuration to a Standard Hub

Configuration

If your cluster is configured in virtual hub mode (two member systems

with no Memory Channel hub), you must convert to standard hub mode

in order to:

• Add another member system to the cluster.

• Add fiber optics to MC2 to provide more distance between the cluster

systems.

_____________________ Note _____________________

You need an additional PCI slot for each optical converter

module to be installed in the system. The optical converter

does not use PCI bandwidth, but it does take up a PCI slot.

You also need an available slot in the Memory Channel hub

for an optical converter module for each member system.

5–26 Setting Up the Memory Channel Cluster Interconnect