Red Hat GFS 5.2.1 -, Administrator'S Manual

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44 Chapter 6. Creating the Cluster Configuration System Files
Creating the
fence.ccs
file consists of defining each fencing device you are going to use. You can
define the following types of fencing devices in the
fence.ccs
file:
•
APC MasterSwitch
•
WTI NPS (Network Power Switch)
•
Brocade FC (Fibre Channel) switch
•
Vixel FC switch
•
GNBD
•
Fence Notify GNBD
•
HP RILOE card
•
Manual
The
fence.ccs
file is used in conjunction with the
nodes.ccs
file to configure fencing in a cluster.
The
nodes.ccs
file specifies fencing devices that are defined in the
fence.ccs
file. The
fence.ccs
file can define any combination of fencing devices.
If a node has dual power supplies, you must define a fencing device for each power supply. Similarly,
if a node has multiple paths to FC storage, you must define a fencing device for each path to FC
storage.
For more information about fencing, refer to Chapter 10
Using the Fencing System .
To create the
fence.ccs
file, follow these steps:
1. Create a file named
fence.ccs
. Use a file format according to the fencing method as follows.
Refer to Table 6-2 for syntax description.
•
APC MasterSwitch — Refer to Figure 6-2.
•
WTI NPS (Network Power Switch) — Refer to Figure 6-3.
•
Brocade FC (Fibre Channel) switch — Refer to Figure 6-4.
•
Vixel FC switch — Refer to Figure 6-5.
•
GNBD — For GNBD without GNBD multipath, refer to Figure 6-6. For GNBD with GNBD
multipath, refer to Figure 6-7.
•
Fence Notify GNBD — Refer to Figure 6-8.
•
HP RILOE card — Refer to Figure 6-9.
•
Manual — Refer to Figure 6-10.
2. Type parameters in the file according to the fencing device (or devices) needed:
a. For each APC MasterSwitch fencing device, specify the following parameters:
DeviceName
, the fencing agent (
agent =
) as
fence_apc
,
IPAddress
,
LoginName
, and
LoginPassword
. Refer to Example 6-3 for a
fence.ccs
file that
specifies an APC MasterSwitch fencing device.
b. For each WTI NPS fencing device, specify the following parameters:
DeviceName
, the
fencing agent (
agent =
) as
fence_wti
,
IPAddress
, and
LoginPassword
. Refer
to Example 6-4 for a
fence.ccs
file that specifies a WTI NPS fencing device.
c. For each Brocade FC-switch fencing device, specify the following parameters:
DeviceName
, the fencing agent (
agent =
) as
fence_brocade
,
IPAddress
,
LoginName
, and
LoginPassword
. Refer to Example 6-5 for a
fence.ccs
file that
specifies a Brocade FC-switch fencing device.