Hi:
Is there any software to create mibs ?
Can you expand on your need? We have a set of SNMP tools in toolset, have you looked at those? http://www.solarwinds.com/products/toolsets/diagnostic_tools.aspx
If you are looking at writing a MIB get Larry Walsh's SNMP MIB Handbook. It can you a lot of headaches.
ISBN 978-0-9814922-0-9
I need create snmp agents to my old suse linux servers, to monitoring cpu, memory and disk usage, is there any way to do this ?
Since this is a Linux system you should install net-snmp which should allow you to collect this type of data.