Can anyone help me with a Nagios / Radius box that is IO bound. Nagios is checking MANY different services and needs tons of IO, however it is killing the box with sometimes 95% of processing waiting for IO.
I know that it is most likely My software Raid. It probably should be setup so that the heavy disk IO is either in a memory disk or at least on a non software RAID disk. Anyway, I need someone to look at this. If you can send your MSN contact information I need someone to look at it right away.
I will be asking about your experience and what makes you qualified to debug this type of issue.
If he is using nagios and monitoring his system he almost has to be monitoring remote systems.
How is nagios setup right now to log? You can setup login to either to mysql or text files - mysql would be more efficient and you could also keep the db on a seperate drive. It may also be possible to tweak the my.cnf to help out a little.
Are you using scsi or ide? You would see a huge IO performance increase if you could push it to scsi from ide.
John W, CISSP, C|EH
MS Information Security and Assurance ITEagleEye.com - Server Administration and Security Yawig.com - Managed VPS and Dedicated Servers with VIP Service