How exactly do backup snapshots work?????
Posted on 2004-10-18
Our company is getting ready to implement a snap server 4500 and Symantec's LiveState Recovery backup software. I understand what a snapshot does, but how exactly does it work. If I am going to take a snapshot of a system volume that I will send over the network to the snap server for backup how does the snapshot exactly work. If I am correct a snapshot only takes a few seconds to create. If we bring down a database for a minute to have the data snapped then the database returns to it's live state what stops a newer version of a file from being backuped and not the snapped verison. Also where is the work being done to create the actual full snapshot file (IE. the server or backup device). I hope that made some sense. Thanks for your help.