OS Watcher User Guide (文档 ID 1531223.1).docx

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2021-02-22

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oswbb
 
OS Watcher User's Guide
Carl Davis
Center of Expertise
September 8, 2014
OSWatcher now provides an analysis tool oswbba which analyzes the log files
produced by OSWatcher. This tool allows OSWatcher to be self-analyzing. 
This tool also provides a graphing capability to graph the data and to produce 
a html profile. See the "Graphing and Analyzing the Output" section below.
To collect database metrics in addition to OS metrics consider 
running LTOM. To see an example of your system profiled with LTOM click 
here..
 
Contents

Introduction   

Overview   

Supported Platforms   

Gathering Diagnostic Data   

Installing oswbb   

Uninstalling oswbb   

Setting up oswbb   

Starting oswbb   

Stopping oswbb   

Diagnostic Data Output   

oswiostat   

oswmpstat   

oswnetstat   

oswprvtnet   

oswifconfig   


oswps   

oswtop   

oswvmstat   

Graphing and Analyzing the Output   

Known Issues   

Download   

Reporting Feedback   

Sending Files To Support   
 
Introduction
OSWatcher (oswbb) is a collection of UNIX shell scripts intended to collect 
and archive operating system and network metrics to aid support in 
diagnosing performance issues. OSWatcher operates as a set of background 
processes on the server and gathers OS data on a regular basis, invoking 
such Unix utilities as vmstat, netstat and iostat. OSWatcher can be 
downloaded from this note. OSWatcher is also included in the RAC-DDT 
script file, but is not installed by RAC-DDT. For more information on RAC-DDT
see RAC-DDT User Guide. OSWatcher is installed on each node where data 
is to be collected. Installation instructions for OSWatcher are provided in this 
user guide.
Back to Contents
Overview
OSWatcher consists of a series of shell scripts. OSWatcher.sh is the main 
controlling executive, which spawns individual shell processes to collect 
specific kinds of data, using Unix operating system diagnostic utilities. Control 
is passed to individually spawned operating system data collector processes, 
which in turn collect specific data, timestamp the data output, and append the 
data to pre-generated and named files. Each data collector will have its own 
file, created and named by the File Manager process.
Data collection intervals are configurable by the user, but will be uniform for all
data collector processes for a single instance of the OSWatcher tool. For 
example, if OSWatcher is configured to collect data once per minute, each 
spawned data collector process will generate output for its respective metric, 
write data to its corresponding data file, then sleep for one minute (or other 

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