Red Hat GFS 6.0 Administrator's Manual page 69

Chapter 6. Creating the Cluster Configuration System Files
nodes {
NodeName {
. .
.
}
NodeName {
ip_interfaces {
IFNAME = "IPAddress "
}
fence {
MethodName {
DeviceName {
}
DeviceName {
}
DeviceName {
}
DeviceName {
}
}
}
}
NodeName {
. .
.
}
}
Figure 6-14. File Format:
port = PortNumber
switch = SwitchNumber
option = "off"
port = PortNumber
switch = SwitchNumber
option = "off"
port = PortNumber
switch = SwitchNumber
option = "on"
port = PortNumber
switch = SwitchNumber
option = "on"
, APC Single Fencing Method, Dual Power Supply
nodes.ccs
Fencing device
for pwr supply 1
Power down
pwr supply 1
Fencing device
for pwr supply 2
Power down
pwr supply 2
Fencing device
for pwr supply 1
Power up
pwr supply 1
Fencing device
for pwr supply 2
Power up
pwr supply 2
File format for node
identification (same
format for all nodes)
File format for APC
MasterSwitch
fencing method, for
node with dual
power supplies
Fencing a node with
dual power supplies
requires that both
power supplies be
powered off before
rebooting the node.
To accomplish that,
the nodes.ccs file
requires the use of
the option =
parameter: first, set
to "off" for for the
fencing device of
each power supply,
then set to "on" for
the fencing device
of each power
supply.
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