Tag: sysstat

  • install sysstat on centos

    To install sysstat/sar on CentOS, run

    yum install sysstat

    Enable and start sysstat

    systemctl enable sysstat
systemctl start sysstat
systemctl status sysstat

    Allow several minutes to collect data, then you will be able to see stats with sar ommand.

    See sar

  • Enable sar in Ubuntu

    On Ubuntu, when i run sar, i get error

    root@localhost:~# sar
Cannot open /var/log/sysstat/sa31: No such file or directory
Please check if data collecting is enabled
root@localhost:~#

    This is because sysstat is not enabled by default on Ubuntu, to enable, edit file

    vi /etc/default/sysstat

    Find

    ENABLED="false"

    Replace with

    ENABLED="true"

    Now restart sysstat

    systemctl restart sysstat

    See sar