stonith - extensible interface for remotely powering down a node in the cluster

AlanRobertson <alanr@unix.sh>
           stonith

       SimonHorman <horms@vergenet.net>
           man page

       FlorianHaas <florian.haas@linbit.com>
           man page

cluster-glue 1.0.12                             December 7, 2009                                      STONITH(8)

       The STONITH module provides an extensible interface for remotely powering down a node in the cluster
       (STONITH = Shoot The Other Node In The Head). The idea is quite simple: when the software running on one
       machine wants to make sure another machine in the cluster is not using a resource, pull the plug on the
       other machine. It's simple and reliable, albeit admittedly brutal.

       To determine which stonith devices are available on your installation, use the -L option:

           # stonith-L

       All of the supported devices will be displayed one per line. Choose one from this list that is best for
       your environment - let's use wti_nps for the rest of this example. To get detailed information about this
       device, use the -h option:

           # stonith-twti_nps-h

       Included in the output is the list of valid parameter names for wti_nps. To get just the list of valid
       parameter names, use the -n option instead:

           # stonith-twti_nps-n

       All of the required parameter names will be displayed one per line. For wti_nps the output is:

           ipaddr
           password

       There are three ways to pass these parameters to the device. The first (and preferred) way is by passing
       name/value pairs on the stonith command line:

           # stonith-twti_npsipaddr=my-dev-ippassword=my-dev-pw...

       The second way, which is maintained only for backward compatibility with legacy clusters, is passing the
       values inorder on the stonith command line with the -p option:

           # stonith-twti_nps-p"my-dev-ipmy-dev-pw"...

       The third way, which is also maintained only for backward compatibility with legacy clusters, is placing
       the values inorder on a single line in a config file:

           my-dev-ip my-dev-pw

       ... and passing the name of the file on the stonith command line with the -F option:

           # stonith-twti_nps-F~/my-wtinps-config...

       To make sure you have the configuration set up correctly and that the device is available for stonith
       operations, use the -S option:

           # stonith-twti_npsipaddr=my-dev-ippassword=my-dev-pw-S

       If all is well at this point, you should see something similar to:

           stonith: wti_nps device OK.

       If you don't, some debugging may be necessary to determine if the config info is correct, the device is
       powered on, etc. The -d option can come in handy here - you can add it to any stonith command to cause it
       to generate debug output.

       To get the list of hosts controlled by the device, use the -l option:

           # stonith-twti_npsipaddr=my-dev-ippassword=my-dev-pw-l

       All of the hosts controlled by the device will be displayed one per line. For wti_nps the output could
       be:

           node1
               node2
               node3

       To power off one of these hosts, use the -T option:

           # stonith-twti_npsipaddr=my-dev-ippassword=my-dev-pw-Toffnode

       stonith - extensible interface for remotely powering down a node in the cluster

       The following options are supported:

       -ccount
           Perform any actions identified by the -l, -S and -T options count times.

       -Fstonith-device-parameters-file
           Path of file specifying parameters for a stonith device. To determine the syntax of the parameters
           file for a given device type run:

               # stonith-tstonith-device-type-n

           All of the listed parameters need to appear in order on a single line in the parameters file and be
           delimited by whitespace.

       -E
           Read the configuration from the environment. The environment variable names are the same as the
           parameter names.

       -h
           Display detailed information about a stonith device including description, configuration information,
           parameters and any other related information. When specified without a stonith-device-type, detailed
           information on all stonith devices is displayed.

           If you don't yet own a stonith device and want to know more about the ones we support, this
           information is likely to be helpful.

       -L
           List the valid stonith device types, suitable for passing as an argument to the -t option.

       -l
           List the hosts controlled by the stonith device.

       -n
           Output the parameter names of the stonith device.

       name=value
           Parameter, in the form of a name/value pair, to pass directly to the stonith device. To determine the
           syntax of the parameters for a given device type run:

               # stonith-tstonith-device-type-n

           All of the listed parameter names need to be passed with their corresponding values.

       -pstonith-device-parameters
           Parameters to pass directly to the stonith device. To determine the syntax of the parameters for a
           given device type run:

               # stonith-tstonith-device-type-n

           All of the listed parameter names need to appear in order and be delimited by whitespace.

       -S
           Show the status of the stonith device.

       -s
           Silent operation. Suppress logging of error messages to standard error.

       -Taction
           The stonith action to perform on the node identified by nodename. Chosen from reset, on, and off.

               Note
               If a nodename is specified without the -T option, the stonith action defaults to reset.

       -tstonith-device-type
           The type of the stonith device to be used to effect stonith. A list of supported devices for an
           installation may be obtained using the -L option.

       -v
           Ignored.

heartbeat(8), meatclient(8)

stonith-hstonith [-s] [-h] -Lstonith [-s] [-h] -tstonith-device-type-nstonith [-s] [-h] -tstonith-device-type {name=value...  | -pstonith-device-parameters | -E |
               -Fstonith-device-parameters-file} [-ccount] [-l] [-S]

       stonith [-s] [-h] -tstonith-device-type {name=value...  | -pstonith-device-parameters | -E |
               -Fstonith-device-parameters-file} [-ccount] [-T {reset | on | off}] [nodename]