Enable SAR on Ubuntu 20.x

index.txt

1. # Open sysstat file
sudo vim /etc/default/sysstat

2. # Change the ENABLED="false" part to ENABLED="true" and save the changes

3. # Restart sysstat:
sudo service sysstat restart

4. ## To adjust the schedule the statistic is recorded run the command below, and update the activity report to your taste
sudo vim /etc/cron.d/sysstat

5. ## You can use `sadf` for viewing in different formats (-j for json), (-g for svg), and (-d for csv)
e.g ->    sadf -j sa06 #to view the log for in `/var/log/sysstat/sa06` in jsoin format

6. ## Archive data stored by `sar` can be viewed in `/var/log/sysstat`, each day of the months archive is stored as `sa*` where `*` represents the day of that month e.g `sa07` represents the data for the seventh data of that month