Hi,
we are developing a solution based on oracle 8i and it is important to have online mirror of this data base.
We can not stop the server to make backup nor insert the lost data in case of hardware failor.
My question: exist any solution for oracle, so that we can backup each database operation on another server (oracle or file server).
The idea is in case of hardware failor to be able to recover all the data.
We have installed RAID and so on, but it is not 100% save.

Many thanks in advance,
ivan.