Q.     Please explain the importance of Backups and how does the DCMS make backups?

I know all about corrupted backups. I was struck by a virus that corrupted the hard drive little by little over the course of a month and as a result, corrupted my backups as well. I am now suggesting that my users take seven disks. Label them Monday through Sunday. You don't have to make a backup every day, in fact, it's probably to your advantage not to. When you do make a backup however, use the appropriate day's disk. This way, over the course of a few months, you should have seven backups. One will be recent, and will of course be the disk of choice. But if there is something wrong with that backup, you will have six more to fall back on. Presumably, one will be several weeks or more old, and will be for most cases, worthless. However, when faced with a potential loss of all of your data, two month old data looks pretty darned good.
 
The other backup point I would like to make is to periodically make an off-site backup. All the backups in the world won't help you if, God forbid, your house should burn down, or you suffer a devastating flood. This can all be avoided if you regularly make a backup and give it to someone out of the house for safekeeping. A safety deposit box, your husband's desk at work, your Director's house or a good friend's home are all good places to safekeep a monthly backup. I have a service where, if you email me a backup, I will safeguard it on a CD for three years. I call it the vault, and it fills the bill as far as off-site backup is concerned.