MONITOR
*Conan The Librarian (sorry for the slow response - running on an old VAX)
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/sys$common/syshlp/helplib.hlb MONITOR *Conan The Librarian (sorry for the slow response - running on an old VAX) |
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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
VBS (VAX Only)
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 command MONITOR.
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 collected by MONITOR is normally 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 command MONITOR 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 (explode) :
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