How to install and use SAR in RedHat 8 / CentOS 8

SAR tool is a very helpful and amazing tool for Linux operating system. We use sar to generate, debug and analyze the Log files from the Linux operating system. This tool is openly available on the internet that can be downloaded and installed easily in our Linux Operating System through the command line. This can be used for real-time monitoring of your Linux server. Once sar is set up on the system, we will use sar command to see the output previously saved in a file. The default path of the saved file would be /var/log/sa/saXX ordered by day and the month.

** Cronjob **

# run system activity accounting tool every 10 minutes
*/10 * * * * root /usr/lib64/sa/sa1 1 1
# generate a daily summary of process accounting at 23:53
53 23 * * * root /usr/lib64/sa/sa2 -A

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