Nagios Support Forum

Normally yes, but when the system crashes no.

If you check the localhost performance graphs in XI, do you see any spikes before the crash?
Also, check /var/log/messages around the time of the crash, are there any errors/segfaults/exceptions/warnings/etc?

We have observed that there is another machine with high I/O disk access. We are going to separate both machines.
Furthermore, we are going to use another machine for the mysql.

Thanks for all.

Here is the documentation for offloading the mysql database in case you need it: