I'm sorry i wasn't clear.

This are 2 different scenario.

1º My raid5 has backups, it runs in a cycle of 4 hours, no problem there. What i was asking, is, in case of failure of the 4 or 3 drives, i would had to reinstall everthing, configure and the put the recent backups.
My question is, if i have a disk image of my raid5, would it work, putting the S.O, all the configuration including the Database, and configuration files.
If it works, i only would have to put the recent backups, and wouldn't have to worry about installing and configuring everything again.

2º The disk on the drive (1 drive) is in a workstation, and it doesn't have raid, it's just a workstation.
But i was asking if a disk clone would clone erros on the surface of the drive.
If this are hardware flaws, would it corrupt the information when im cloning.