sadc is the system activity data collector, used as a backend for sar.
Start on SUSE Enterprise 11
If you want to monitor your system about a longer period of time, use sadc to automatically collect the data. You can read this data at any time using sar.
/etc/init.d/boot.sysstat start. This will add a link to /etc/cron.d/ that starts sadc:
- Data is written to /var/log/sa/saDD, where DD stands for the current day. If a file already exists, it will be archived.
- The summary report is written to /var/log/sa/sarDD1, where DD stands for the current day. Already existing files will be archived.
- Data is collected every 10 minutes(you can change this interval by update sysstat.cron)
- Summary report is generated every 6 hours (see sysstat.cron).
- The data is collected by the /usr/lib64/sa/sa1 script (or /usr/lib/sa/sa1 on 32bit systems)
- The summaries are generated by the script /usr/lib64/sa/sa2 (or /usr/lib/sa/sa2 on 32bit systems)
saDD is a compressed binary data file; sarDD is readable plaintext file with larger size; ↩
Start on Ubuntu 16.04
$sudo apt-get install sysstat # install package ... $ cd /etc/init.d $ ll sysstat -rwxr-xr-x 1 root root 1597 Nov 10 2013 sysstat* # it was disabled by default setting $ service sysstat status * sadc cron jobs are disabled # edit below file, change ENABLED="true" $ vi /etc/default/sysstat $ service sysstat status * sadc cron jobs are enabled $ service sysstat start * Starting the system activity data collector sadc [ OK ]