When computers forget renew the data they contain hard drives, with a risky practice to leave the data available to everyone. So that only a safe and irreversible erasing erasure data may prevent access to information stored permanently.
And if we want to discard an old server?
All had previously contained data that could be recovered even formatted disks.
Certified destruction is to delete the data according to European standards. This is achieved by destroying the data logically rewriting all disk sectors in triplicate, but this is rather slow for large-capacity disks, so for safety and efficiency physically destroyed the hard drive with a degausser, which through a strong magnetic field, completely erases the hard disk surface unusable for always safely.
If you want to reuse the hard drives, for a higher cost and certificate programs for secure deletion then proceed to treat them to return to plataformar machines.
