Red Hat GFS 6.0 -, Administrator'S Manual

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52 Chapter 6. Creating the Cluster Configuration System Files
To create the
nodes.ccs
file, follow these steps:
1. Create a file named
nodes.ccs
.
a. If you are configuring a node for one fencing method (not cascaded), specify only one
fencing method per node in the
nodes.ccs
file. Use a file format according to the fencing
method as follows. Refer to Table 6-3 for syntax description.
•
APC MasterSwitch — For a node with a single power supply, refer to Figure 6-13. For
a node with dual power supplies, refer to Figure 6-14.
•
WTI NPS — Refer to Figure 6-15.
•
Brocade, McData, or Vixel FC switch — Refer to Figure 6-16.
•
GNBD — Refer to Figure 6-17.
•
HP RILOE — Refer to Figure 6-18.
•
xCAT — Refer to Figure 6-19.
•
Egenera BladeFrame — Refer to Figure 6-20.
•
Manual — Refer to Figure 6-21.
Warning
Manual fencing should not be used in a production environment. Manual fencing de-
pends on human intervention whenever a node needs recovery. Cluster operation is
halted during the intervention.
b. If you are configuring a node for cascaded fencing, use the file format in Figure 6-22.
Refer to Table 6-3 for syntax description.
Note
Figure 6-22 does not show device-specific parameters for fencing methods. To determine
device-specific parameters, refer to the appropriate figures listed in Step 1, part a.
2. For each node, specify
NodeName
,
IFName
, and the IP address of the node name,
IPAddress
.
If your cluster is running Red Hat GFS 6.0 for Red Hat Enterprise Linux 3 Update 5 and later,
you can use the optional
usedev
parameter to explicitly specify an IP address rather than relying
on an IP address from
libresolv
. For more information about the optional
usedev
parameter,
refer to the file format in Figure 6-23 and the example in Example 6-26. Refer to Table 6-3 for
syntax description of the
usedev
parameter.
Note
Figure 6-23 and Example 6-26 do not show device-specific parameters for fencing methods.
To determine device-specific parameters, refer to the appropriate figures listed in Step 1, part
a.