Compaq AA-RHGWB-TE manual Setting Up the Memory Channel Cluster Interconnect

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Setting Up the Memory Channel Cluster Interconnect

This chapter describes Memory Channel configuration restrictions, and describes how to set up the Memory Channel cluster interconnect, including setting up a Memory Channel hub, Memory Channel optical converter (MC2 only), and connecting link cables.

Two versions of the Memory Channel PCI adapter are available; CCMAA and CCMAB (MC2).

Two variations of the CCMAA PCI adapter are in use; CCMAA-AA (MC1) and CCMAA-AB (MC1.5). As the hardware used with these two PCI adapters is the same, this manual often refers to MC1 when referring to either of these variations.

See the TruCluster Server Software Product Description (SPD) for a list of the supported Memory Channel hardware. See the Memory Channel User’s Guide for illustrations and more detailed information about installing jumpers, Memory Channel adapters, and hubs.

You can have two Memory Channel adapters with TruCluster Server, but only one rail can be active at a time. This is referred to as a failover pair. If the active rail fails, cluster communications fails over to the inactive rail.

See Section 2.2 for a discussion on Memory Channel restrictions.

To set up the Memory Channel interconnects, follow these steps, referring to the appropriate section and the Memory Channel User’s Guide as necessary:

1.Set the Memory Channel jumpers (Section 5.1).

2.Install the Memory Channel adapter into a PCI slot on each system (Section 5.2).

3.If you are using fiber optics with MC2, install the CCMFB fiber optics module (Section 5.3).

4.If you have more than two systems in the cluster, install a Memory Channel hub (Section 5.4).

5.Connect the Memory Channel cables (Section 5.5).

6.After you complete steps 1 through 5 for all systems in the cluster, apply power to the systems and run Memory Channel diagnostics (Section 5.6).

Setting Up the Memory Channel Cluster Interconnect 5–1