Installation guide

Section 2.4:Steps for Setting Up and Connecting the Cluster Hardware 39
19 ttyC
20 cub
128 ptm
136 pts
162 raw
Block devices:
2fd
3 ide0
8sd
65 sd
#
The previous example shows:
• Onboard serial ports (ttyS)
• Serial expansion card (ttyC)
• Raw devices (raw)
• SCSI devices (sd)
2.4 Steps for Setting Up and Connecting the Cluster
Hardware
After installing Red Hat Linux, set up the cluster hardware components and verify the installation
to ensure that the cluster systems recognize all the connected devices. Note that the exact steps for
setting up the hardware depend on the type of configuration. See Section 2.1, Choosing a Hardware
Configuration for more information about cluster configurations.
To set up the cluster hardware, follow these steps:
1. Shut down the cluster systems and disconnect them from their power source.
2. Set up the point-to-point Ethernet and serial heartbeat channels, if applicable. See Section 2.4.1,
Configuring Heartbeat Channels for more information about performing this task.
3. When using power switches, set up the devices and connect each cluster system to a power switch.
See Section 2.4.2, Configuring Power Switches for more information about performing this task.
In addition, it is recommended to connect each power switch (or each cluster system’s power
cord if not using power switches) to a different UPS system. See Section 2.4.3, Configuring UPS
Systems for information about using optional UPS systems.