Installation guide

Note
You can fence the node with the fence_node command or Conga.
Example 2.11. BIOS CMOS Setup Utility: Soft -Off by PWR-BT T N set to Instant-Off
+-------------------------------------------------|------------------------+
| ACPI Function [Enabled] | Item Help |
| ACPI Suspend Type [S1(POS)] |------------------------|
| x Run VGABIOS if S3 Resume Auto | Menu Level * |
| Suspend Mode [Disabled] | |
| HDD Power Down [Disabled] | |
| Soft-Off by PWR-BTTN [Instant-Off] | |
| CPU THRM-Throttling [50.0%] | |
| Wake-Up by PCI card [Enabled] | |
| Power On by Ring [Enabled] | |
| Wake Up On LAN [Enabled] | |
| x USB KB Wake-Up From S3 Disabled | |
| Resume by Alarm [Disabled] | |
| x Date(of Month) Alarm 0 | |
| x Time(hh:mm:ss) Alarm 0 : 0 : 0 | |
| POWER ON Function [BUTTON ONLY] | |
| x KB Power ON Password Enter | |
| x Hot Key Power ON Ctrl-F1 | |
| | |
| | |
+-------------------------------------------------|------------------------+
This example shows ACPI Function set to Enabled, and Soft-Off by PWR-BT T N set to Instant-
Off.
2.3.3. Disabling ACPI Completely in the grub.conf File
The preferred method of disabling ACPI Soft-Off is with chkconfig management (Section 2.3.1,
“Disabling ACPI Soft-Off with chkconfig Management”). If the preferred method is not effective for your
cluster, you can disable ACPI Soft-Off with the BIOS power management (Section 2.3.2, “Disabling ACPI
Soft-Off with the BIOS”). If neither of those methods is effective for your cluster, you can disable ACPI
completely by appending acpi=off to the kernel boot command line in the grub.conf file.
Important
This method completely disables ACPI; some computers do not boot correctly if ACPI is
completely disabled. Use this method only if the other methods are not effective for your cluster.
You can disable ACPI completely by editing the grub.conf file of each cluster node as follows:
1. Open /boot/grub/grub.conf with a text editor.
2. Append acpi=off to the kernel boot command line in /boot/grub/grub.conf (refer to
Example 2.12, “Kernel Boot Command Line with acpi=off Appended to It”).
3. Reboot the node.
Chapter 2. Before Configuring a Red Hat Cluster
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