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Fence Device Parameters
This appendix provides tables with parameter descriptions of fence devices.
Note
The Name parameter for a fence device specifies an arbitrary name for the device that will be
used by Red Hat Cluster Suite. This is not the same as the DNS name for the device.
Note
Certain fence devices have an optional Passwo rd Scrip t parameter. The Passwo rd Scrip t
parameter allows specifying that a fence-device password is supplied from a script rather than
from the Passwo rd parameter. Using the Passwo rd Scrip t parameter supersedes the
Passwo rd parameter, allowing passwords to not be visible in the cluster configuration file
(/etc/cluster/cluster.conf).
T ab le B.1. APC Po wer Swit ch
Field Descrip t io n
Name A name for the APC device connected to the cluster.
IP Address The IP address assigned to the device.
Login The login name used to access the device.
Password The password used to authenticate the connection to the device.
Password
Script
(optional)
The script that supplies a password for access to the fence device. Using this
supersedes the Passwo rd parameter.
Power wait Number of seconds to wait after issuing a power off or power on command.
Port The port.
Switch
(optional)
The switch number for the APC switch that connects to the node when you have
multiple daisy-chained switches.
Use SSH (Red Hat Enterprise Linux 5.4 and later) Indicates that system will use SSH to
access the device.
fence_apc
The fence agent for APC.
T ab le B.2. APC Po wer Swit ch o ver SNMP ( R ed Hat En t erp rise Lin u x 5.2 an d lat er)
Field Descrip t io n
Name A name for the APC device connected to the cluster into which the fence
daemon logs via the SNMP protocol.
IP Address The IP address or hostname assigned to the device.
UDP/TCP Port The UD P/TCP port to use for connection with the device; the default value is
161.
Login The login name used to access the device.
Password The password used to authenticate the connection to the device.
Password Script
(optional)
The script that supplies a password for access to the fence device. Using
this supersedes the Passwo rd parameter.
Fence Device Paramet ers
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