NAME

       fence_kdump - fencing agent for use with kdump crash recovery service

SYNOPSIS

       fence_kdump [OPTIONS]...

DESCRIPTION

       fence_kdump  is  an  I/O  fencing  agent  to  be  used  with  the  kdump crash recovery service. When the
       fence_kdump agent is invoked, it will listen for a message from the failed node  that  acknowledges  that
       the  failed  node  it  executing  the kdump crash kernel.  Note that fence_kdump is not a replacement for
       traditional fencing methods. The fence_kdump agent can only detect that a  node  has  entered  the  kdump
       crash  recovery service. This allows the kdump crash recovery service complete without being preempted by
       traditional power fencing methods.

OPTIONS

       -n, --nodename=NODE
              Name or IP address of node to be fenced. This option is required for the "off"  action.  (default:
              none)

       -p, --ipport=PORT
              IP port number that the fence_kdump agent will use to listen for messages. (default: 7410)

       -f, --family=FAMILY
              IP  network family. Force the fence_kdump agent to use a specific family. The value for FAMILY can
              be "auto", "ipv4", or "ipv6". (default: auto)

       -o, --action=ACTION
              Fencing action to perform. The value for ACTION can be either "off" or "metadata". (default: off)

       -t, --timeout=TIMEOUT
              Numer of seconds to wait for message from failed node. If no message is  received  within  TIMEOUT
              seconds, the fence_kdump agent returns failure. (default: 60)

       -v, --verbose
              Print verbose output.

       -V, --version
              Print version and exit.

       -h, --help
              Print usage and exit.

STDIN PARAMETERS

       These parameters are passed to fence_kdump via standard input if no command-line options are present.

       nodename=NODE
              Name  or  IP address of node to be fenced. This option is required for the "off" action. (default:
              none)

       ipport=PORT
              IP port number that the fence_kdump agent will use to listen for messages. (default: 7410)

       action=ACTION
              Fencing action to perform. The value for ACTION can be either "off" or "metadata". (default: off)

       timeout=TIMEOUT
              Numer of seconds to wait for message from failed node. If no message is  received  within  TIMEOUT
              seconds, the fence_kdump agent returns failure. (default: 60)

ACTIONS

       off    Listen  for  message  from  failed  node  that  acknowledges node has entered kdump crash recovery
              service. If a valid message is received from the failed node, the node is considered to be  fenced
              and  the  agent  returns  success.  Failure to receive a valid message from the failed node in the
              given timeout period results in fencing failure.

       metadata
              Print XML metadata to standard output.

AUTHOR

       Ryan O'Hara <rohara@redhat.com>

SEE ALSO

       fence_kdump_send(8), fenced(8), fence_node(8)

                                                                                                  fence_kdump(8)