Re: [CentOS] questions relate to "sar"

mcclnx mcc wrote:

We have CENTOS 5.3 on DELL server. I tried to use "sar -b" or "sar -u" and it only show report starting on 12:00 A.M.

my questions are:

1. for "sar -u" or "sar -b" how can I generate two or three days ago report?

2. how to generate daily report from "sa2 " peocess?

I suggest reading the man pages on sar, and associated functions.

sar -f /var/log/sa/sa22 would process the data for the 22nd, see what files you have available in /var/log/sa/ ... my system seems to be keeping 18 days worth.

sa2 is used to create the daily reporrt files described above. If you want to create a daily report in a specific format, you'll probably want to write your own script that you invoke from crontab