Reporting on capacity usage not only shows what is happening on a system at a given time, but it can also help administrators plan for future resource needs. In this hands-on lab, you are tasked with generating several resource usage reports that utilize the `sar`, `vmstat`, and `iostat` commands.
Successfully complete this lab by achieving the following learning objectives:
- Install the monitoring and reporting utilities (sysstat).
yumcommand to install the
yum install -y sysstat
- Start and enable the sysstat service so that sar will begin collecting system information.
Start and enable the
systemctl start sysstat systemctl enable sysstat
- Update the cron file for sysstat so that the system activity accounting tool will run every thirty minutes.
sysstat cronfile and change the duration for the system activity accounting tool from 10 minutes to 30 minutes:
vim /etc/cron.d/sysstat Update the following line: */10 * * * * root /usr/lib64/sa/sa1 1 1 To look like this: */30 * * * * root /usr/lib64/sa/sa1 1 1 Save the file by running :wq
- Capture the results of the vmstat command in a file – /root/vmstat_report. The report should have a delay of one second with a count of ten and also include timestamps.
vmstatcommand to generate a report and redirect the output to
vmstat -t 1 10 > /root/vmstat_report
- Capture the results of the iostat command in a file – /root/iostat_report. Only include statistics from the nvme0n1 device (cpu and average removed). It should have a one second delay and count of five.
iostatcommand to generate a report and redirect the output to
iostat -dy -p nvme0n1 1 5 > /root/iostat_report