Chapter 3
Basic investigation
Abstract
In this chapter, we focus on the methodology and steps needed to perform a successful first-level system debugging and analysis. We will be using system logs and statistics to try to understand the manifestation of a problem.
Keywords
top
ps
dmesg
iostat
vmstat
sar
Profile the system status
Previous chapters have taught us the necessary models when approaching what may appear to be a problem in our environment. The idea is to carefully isolate the problem, reduce it to a minimal set of variables, and then use industry-accepted methods to prove and disprove your theories. Now, we will learn about the tools that can help us in our quest.
Environment monitors
Typically, data center hosts are configured to ...
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