I've around 400 GB Live mysql Databases on a single server and I love to produce a mirror with this database. Within the server I've database varying from 1 GB to 100 GB. Do you know the guidelines available will be able to use? My purpose is the fact that I ought to have the ability to switch just in case of emergency. It will have live data.

Thanks.

It is dependent around the emergency...

For live data, replication is what you want, but an accidental DROP is going to be duplicated straight across...

Also, are you currently searching to outlive a building disaster, or simply a server/drive/hardware crash?