Symantec 5 manual

Preparing to install VCS 41

Performing preinstallation tasks

Figure 3-3 Private network setup with crossed links

Public network

Private networks

Crossed link

To set up the private network

1Install the required network interface cards (NICs).

Create aggregated interfaces if you want to use these to set up private network.

2Connect the VCS private NICs on each system.

3Use crossover Ethernet cables, switches, or independent hubs for each VCS communication network. Note that the crossover Ethernet cables are supported only on two systems.

Ensure that you meet the following requirements:

■The power to the switches or hubs must come from separate sources.

■On each system, you must use two independent network cards to provide redundancy.

■The network interface card to set up private interface is not part of any aggregated interface.

During the process of setting up heartbeat connections, consider a case where a failure removes all communications between the systems.

Note that a chance for data corruption exists under the following conditions:

■The systems still run, and