System monitoring with sar

ronstudio

Recently I have come acrossed to the command, sar, which can be used to retrieve past system performance. (something similar to TOP, but TOP is real time, while sar is past information)

Even in vbird, the command is barely mentioned only, the following article is a good introduction article describe how to use, very useful:
http://www.linuxjournal.com/content/sysadmins-toolbox-sar

basic usage:
sar           // to get the CPU statistics
sar -r       // RAM statistics
sar -b      // Disk statistics
sar -s 17:00:00 -e 17:30:00     // Retrieve the past info between 1 7:00-17:30

mikeckm

Recently I have come acrossed to the command, sar, which can be used to retrieve past system perform ...
ronstudio 發表於 2014-3-4 11:13

都好實用，但只限 Mon 一段時間會用，如果長期要 Mon 又要做番 Performance 同 Sizing Report，起番套 NMS 先得，宜家整理緊資料，遲 d 同大家分享下，現在我個 NMS ，係 Nagios + Check_MK + Nagvis。

ronstudio

回復 2# mikeckm

That's great! I keep seeing Nagios but didn't have chance to touch it yet~~