Chapter 10. Using the Fencing System
117
10.2.2. WTI Network Power Switch
WTI network power switches (NPSs) are used to power cycle nodes that need to be fenced. The
fencing agent,
fence_wti
, logs into the device and reboots the specific port for the offline node. The
fence_wti
fencing agent does not support nodes with dual power supplies plugged into a WTI NPS.
Refer to Section 6.6
Creating the
fence.ccs
File
and Section 6.7
Creating the
nodes.ccs
File
for
information on how to configure with this type of fencing.
Note
Lengthy Telnet connections to the WTI NPS should be avoided during the cluster operation. A fencing
operation trying to use the WTI NPS will be blocked until it can log in.
10.2.3. Brocade FC Switch
A node connected to a Brocade FC (Fibre Channel) switch can be fenced by disabling the switch port
that the node is connected to. The fencing agent,
fence_brocade
, logs into the switch and disables
the specific port associated with the node.
Nodes
with
multiple
FC
paths
can
have
each
path
disabled.
Refer
to
Section 6.6
Creating the
fence.ccs
File
and
Section 6.7
Creating the
nodes.ccs
File
for
information on how to configure with this type of fencing.
Note
Lengthy Telnet connections to the switch should be avoided during the cluster operation. A fencing
operation trying to use the switch will be blocked until it can log in.
10.2.4. Vixel FC Switch
A node connected to a Vixel FC (Fibre Channel) switch can be fenced by disabling the switch port
that the node is connected to. The fencing agent,
fence_vixel
, logs into the switch and disables the
specific port associated with the node. Nodes with multiple FC paths can have each path disabled.
Refer to Section 6.6
Creating the
fence.ccs
File
and Section 6.7
Creating the
nodes.ccs
File
for
information on how to configure with this type of fencing.
Note
Lengthy Telnet connections to the switch should be avoided during the cluster operation. A fencing
operation trying to use the switch will be blocked until it can log in.
Summary of Contents for GFS 6.0 -
Page 1: ...Red Hat GFS 6 0 Administrator s Guide...
Page 8: ......
Page 88: ...74 Chapter 6 Creating the Cluster Configuration System Files...
Page 98: ...84 Chapter 7 Using the Cluster Configuration System...
Page 102: ...88 Chapter 8 Using Clustering and Locking Systems...
Page 128: ...114 Chapter 9 Managing GFS...
Page 134: ...120 Chapter 10 Using the Fencing System...
Page 144: ...130 Chapter 12 Using GFS init d Scripts...
Page 148: ...134 Appendix A Using Red Hat GFS with Red Hat Cluster Suite...
Page 184: ...170 Appendix C Basic GFS Examples...
Page 190: ......
