Filed under Linux

Monitoring Oracle with oratop

Intro I recently had a situation where I was troubleshooting a system that had fallen victim to some intermittent and very high load averages.  At first, there were no apparent reasons for the high load averages, so that sent me searching for some monitoring tools to help identify the issue.  Besides using OSWBB and dstat, … Continue reading

Using dstat for monitoring CPU, Memory, Disk, etc

Overview dstat is a good tool for replacing vmstat, netstat, iostat, and ifstat.  It it a very lightweight tool that can consolidate and correlate data  that  you would normally have to capture in different terminals.   Examples   RMAN Backup Throughput I’ve used dstat before in the past to monitor backup throughput over interfaces.  Of … Continue reading

GNU screen Command

The screen utility can be used to start a session that will be persistent if the terminal is lost, plus it also provides the ability to login from another computer simply by attaching to the screen session name.   Here are some essential commands to know: Start new session with a name and a log … Continue reading