SysStat : Install

SysStat : Install 2015/02/18

	Install SysStat to enable system monitoring.
[1]	Install SysStat.

[root@dlp ~]#  yum -y install sysstat [root@dlp ~]#  systemctl start sysstat  [root@dlp ~]#  systemctl enable sysstat

[2]	Logging is executed by cron's setting like follows. * Logs are stored in /var/log/sa/sa** per 10 minutes with /usr/lib64/sa/sa1 command. * The Statics of a day is generated at 23:53 every day to /var/log/sa/sar** with /usr/lib64/sa/sa2 command.

[root@dlp ~]#  cat /etc/cron.d/sysstat  # Run system activity accounting tool every 10 minutes */10 * * * * root /usr/lib64/sa/sa1 1 1 # 0 * * * * root /usr/lib64/sa/sa1 600 6 & # Generate a daily summary of process accounting at 23:53 53 23 * * * root /usr/lib64/sa/sa2 -A

[3]	If you'd like to change some settings of SysStat, the configuration file is located like follows.

[root@dlp ~]#  vi /etc/sysconfig/sysstat # sysstat-10.1.5 configuration file. # How long to keep log files (in days). # If value is greater than 28, then log files are kept in # multiple directories, one for each month. HISTORY=28 # Compress (using gzip or bzip2) sa and sar files older than (in days): COMPRESSAFTER=31 # Parameters for the system activity data collector (see sadc manual page) # which are used for the generation of log files. # *note SADC_OPTIONS="-S DISK" # *note : valid options INT ⇒ System Interrupts DISK ⇒ Block Devices SNMP ⇒ SNMP statistics IPV6 ⇒ IPv6 statistics POWER ⇒ Power Management statistics ALL ⇒ All of the above XDISK ⇒ DISK + Partition statistics XALL ⇒ All of the above (ALL + XDISK)