The ability to diagnose and resolve issues on a Linux system is a skill that every administrator needs to cultivate. In this lab, we cover using various reporting and monitoring utilities to troubleshoot issues with disk utilization on the system.
Successfully complete this lab by achieving the following learning objectives:
- Install the Monitoring and Reporting Utilities (`sysstat`)
sysstatpackage using the following commands:
sudo -i yum install -y sysstat
- Use the Monitoring and Reporting Utilities to Diagnose the Issue
This is a list of possible steps to take in order to find the source of the issue. All of these can be used, but they are not all required. Once located, the offending process should be copied to
top vmstat 1 4 iostat -y 1 3 iostat -dy -p xvdg 1 3 lsblk lsof | grep “mount point or device major,minor number” ps -ef | grep (PID of dalinar.sh) pstree -p (PID of dalinar.sh) cp /mnt/roshar/dalinar.sh /home/cloud_user/
- Terminate the Offending Process
Once the PID of the offending process has been located (
dalinar.sh), use the
killcommand to terminate it.
kill -15 (PID of dalinar.sh)