Pacemaker - Part of the Pacemaker cluster resource manager

       Written by Andrew Beekhof and the Pacemaker project contributors

Pacemaker 3.0.0                                     June 2025                                       PACEMAKER(8)

       Provides a summary of cluster's current state.

       Outputs varying levels of detail in a number of different formats.

       Display the cluster status on the console with updates as they occur:

              crm_mon

       Display the cluster status once and exit:

              crm_mon -1

       Display the cluster status, group resources by node, and include inactive resources in the list:

              crm_mon --group-by-node --inactive

       Start crm_mon as a background daemon and have it write the cluster status to an HTML file:

              crm_mon --daemonize --output-as html --output-to /path/to/docroot/filename.html

       Display the cluster status as XML:

              crm_mon --output-as xml

       When  run  interactively,  crm_mon can be told to hide and show various sections of output. To see a help
       screen explaining the options, press '?'. Any key stroke aside from those listed will cause the screen to
       refresh.

       Pacemaker - Part of the Pacemaker cluster resource manager

       Time Specification:

       The  TIMESPEC in any command line option can be specified in many different formats. It can be an integer
       number of seconds, a  number  plus  units  (us/usec/ms/msec/s/sec/m/min/h/hr),  or  an  ISO  8601  period
       specification.

HelpOptions:-h, --help
              Show help options

       --help-all
              Show all help options

       --help-output
              Show output help

       --help-display
              Show display options

       --help-additional
              Show additional options

       --help-deprecated
              Show deprecated options

   OutputOptions:--output-as=FORMAT
              Specify output format as one of: console (default), html, text, xml, none

       --output-to=DEST
              Specify file name for output (or "-" for stdout)

       --html-cgi
              Add CGI headers (requires --output-as=html)

       --html-stylesheet=URI
              Link to an external stylesheet (requires --output-as=html)

       --html-title=TITLE
              Specify a page title (requires --output-as=html)

   DisplayOptions:-I, --include=SECTION(s)
              A list of sections to include in the output.  See `Output Control` help for more information.

       -U, --exclude=SECTION(s)
              A list of sections to exclude from the output.  See `Output Control` help for more information.

       --node=NODE
              When  displaying  information  about  nodes, show only what's related to the given node, or to all
              nodes tagged with the given tag

       --resource=RSC
              When displaying information about resources, show only what's related to the given resource, or to
              all resources tagged with the given tag

       -n, --group-by-node
              Group resources by node

       -r, --inactive
              Display inactive resources

       -f, --failcounts
              Display resource fail counts

       -o, --operations
              Display resource operation history

       -t, --timing-details
              Display resource operation history with timing details

       -c, --tickets
              Display cluster tickets

       -m, --fence-history=LEVEL
              Show fence history: 0=off, 1=failures  and  pending  (default  without  option),  2=add  successes
              (default  without  value for option), 3=show full history without reduction to most recent of each
              flavor

       -L, --neg-locations
              Display negative location constraints [optionally filtered by id prefix]

       -A, --show-node-attributes
              Display node attributes

       -D, --hide-headers
              Hide all headers

       -R, --show-detail
              Show more details (node IDs, individual clone instances)

       --show-description
              Show resource descriptions

       -b, --brief
              Brief output

   AdditionalOptions:-i, --interval=TIMESPEC
              Update frequency (default is 5 seconds)

       -1, --one-shot
              Display the cluster status once and exit

       -d, --daemonize
              Run in the background as a daemon.  Requires at least one of --output-to and --external-agent.

       -p, --pid-file=FILE
              (Advanced) Daemon pid file location

       -E, --external-agent=FILE
              A program to run when resource operations take place

       -e, --external-recipient=RCPT
              A recipient for your program (assuming you want the program to send something to someone).

       -W, --watch-fencing
              Listen for fencing events. For use with --external-agent.

   DeprecatedOptions:-X, --as-xml
              Write cluster status as XML to stdout.  This  will  enable  one-shot  mode.   Use  --output-as=xml
              instead.

   ApplicationOptions:
       -$, --version
              Display software version and exit

       -V, --verbose
              Increase debug output (may be specified multiple times)

       -Q, --quiet
              Be less descriptive in output.

       By  default, a particular set of sections are written to the output destination. The default varies based
       on the output format: XML includes all sections by default, while other output formats include less. This
       set can be modified with the --include and --exclude command line options.  Each  option  may  be  passed
       multiple  times,  and each can specify a comma-separated list of sections. The options are applied to the
       default set, in order from left to right as they are passed on the command line.  For  a  list  of  valid
       sections, pass --include=list or --exclude=list.

       crm_mon [options]