I had today a problem with my mail server (2.6.18-274.12.1.el5 #1 SMP Tue Nov 29 13:37:35 EST 2011 i686 i686 i386 GNU/Linux, CentOS release 5.7 (Final)). On my Cacti graphs I see that there has been much I/O write on the disks and then there is no more info. Also in logs (messages, dmesg, netconsole) there is no info for about 15 minutes when there was a problem with the server.
I would like to have some info in such situations. Do you know any solutions?
Best regards,
Rafal.
