Hey guys,
i have system with linux red hat-3 version and DB2 on it. I am planning to upgrade my system to linux red hat-5 version. I already have a huge amount of data stored on DB2. Is there any way just to upgrade the system without disturbing my database. i really do not want re-install the linux redhat-5 version by removing the redhat-3 as it will be painful and time consuming. Please do let me know if anybody has previously did this stuff and also your experience while doing it.

The priority levels are:
1st Priority - Database safety(I do not want to loose any data)
2nd priority - the server cannot be down for a long time (Time is a factor)