Red Hat GFS 5.2.1 -, Administrator'S Manual

Page: 125 / 192

Chapter 10. Using the Fencing System 111
The manual fencing agent,
fence_manual
, writes a message into the system log of the node on which
the fencing agent is running. The message indicates the cluster node that requires fencing. Upon seeing
this message (by monitoring
/var/log/messages
or equivalent), an administrator must manually
reset the node specified in the message. After the node is reset, the administrator must run the com-
mand
fence_ack_manual
to indicate to the system that the failed node has been reset. Recovery of
the reset node will then proceed. Refer to Section 6.7 Creating the
fence.ccs
File and Section 6.8
Creating the
nodes.ccs
File for information on how to configure with this type of fencing.
10.2.8.1. Usage
fence_ack_manual -s IPAddress
IPAddress
The IP address of the node that was manually reset.