MONITOR

   The Monitor utility (MONITOR) is a system management tool used
   to obtain information about operating system performance. MONITOR
   allows you to monitor classes of systemwide performance data
   (such as system I/O statistics, page management statistics,
   and time spent in each of the processor modes) at specifiable
   intervals, and produce several types of output.

   To monitor a particular class of information, specify the class
   names corresponding to the information classes that you want to
   monitor. For example, to monitor page management statistics,
   specify the PAGE class name in the MONITOR command. MONITOR
   collects system performance data by class and produces the
   following three forms of optional output:

   o  A disk recording file in binary format

   o  Statistical terminal displays

   o  A disk file containing statistical summary information in
      ASCII format

   The utility initiates a single MONITOR request for the classes of
   performance data specified each time you enter a command in the
   following form:

   MONITOR [/qualifier[,...]] classname[,...] [/qualifier[,...]]

   Regardless of the order in which you specify classname
   parameters, MONITOR always executes requests in the following
   sequence:

      PROCESSES
      STATES
      MODES
      PAGE
      IO
      FCP
      LOCK
      DECNET
      FILE_SYSTEM_CACHE
      DISK
      DLOCK
      SCS
      SYSTEM
      CLUSTER
      RMS
      MSCP_SERVER
      TRANSACTION
      VECTOR
      TIMER
      RLOCK

   Depending on the command qualifiers specified, MONITOR collects
   system performance data from the running system or plays back
   data recorded previously in a recording file. When you play back
   data, you can display it, summarize it, and even rerecord it to
   reduce the amount of data in the recording file.
 

   To invoke MONITOR, enter the DCL command MONITOR.

   $ MONITOR

   The utility then displays the following prompt:

   MONITOR>

   To begin monitoring a system, issue the Monitor utility MONITOR
   command.

                                  NOTE

      If you attempt to monitor a remote node that is
      incompatible, the system displays the following message:

      %MONITOR-E-SRVMISMATCH, MONITOR server on remote node is an incompatible
                              version

      If you receive this message, contact your VSI support
      representative for a remedial kit that corrects this
      problem.

      Before you install the remedial kit, you can still use
      MONITOR to obtain data about the remote node. To do this,
      record the data on the remote node, and then run the MONITOR
      playback feature to examine the data on the local node.

   Generally, each MONITOR request runs until the time specified or
   implied by the /ENDING qualifier. To exit from MONITOR, enter the
   EXIT command at the MONITOR> prompt or press Ctrl/Z. To terminate
   a MONITOR request without exiting from the utility, press Ctrl/C.

   Information that MONITOR collect is usually displayed as ASCII
   screen images. You can use the optional /DISPLAY qualifier to
   specify a disk file to contain the information. If you omit the
   file specification, output is directed to SYS$OUTPUT. See the
   Monitor utility MONITOR command for a discussion of the /DISPLAY
   qualifier.

   You can also initiate MONITOR requests from command level by
   entering the DCL command MONITOR with the desired qualifiers and
   parameters. However, in terms of conserving system resources, it
   is preferable to initiate requests in response to the MONITOR>
   prompt.
 

Additional information available:

ALIGN           CONVERT         EXECUTE         EXIT            HELP
INITIALIZE      MONITOR         SET_DEFAULT     SHOW_DEFAULT