*Method 1: Overwriting method
Because the tape can be repeated use, on the surface of the current data is behind a overwrite data in the past, even if they could through software for data reduction, along with the increase in number of written, unstructured data recovery, need to interpret the longer time, enterprise can assess whether can bear the risk of data to be recovery.
Among them, the low degree is to completely overwrite the tape or disk;
*Method two: Demagnetization method
Storage media, such as disks or tapes, are magnetic technologies, and if their magnetic structure can be destroyed, the existing data will no longer exist.
Research by the executive yuan will archives about destruction of the data is complete, the unit senior inspection Li Yanxi says archives refresh the file data storage media, or must be destroyed in accordance with the data, and so on, whether it is a disk or tape, first of all, is the first degaussing action, let the data stored in the media, can make it disappear completely.
General enterprises can buy small degaussing machine to do a single roll of degaussing, but degaussing machine magnetic wave high, a large number of degaussing commissioned by specialized companies more quickly and safely.
*Method 3: Mashing earing method
Breaking an entity's storage media so that data cannot be read by the system is also a way to ensure data confidentiality and security.
In addition, a telecommunications company will also store the data of the disc, the large machine smashed, ground up action.
Although some have questioned the safety of using this method of data destruction, companies that use this method of data destruction, in addition to measuring the maximum risk they can take, have the added benefit of using incineration.
*Method 4: Incineration
Almost every storage medium that needs to be replaced will eventually have to be incinerated so that the data is literally incinerated and no longer exists.
By burning the storage media of the telecommunication company, the purpose of data confidentiality is achieved;
*Method 5: Shredding
Use the heavy duty shredder with strong power to shred the hard disk to be small piece, such as Gator hard disk shredder, can shred the server hard diks to be 9mm or less particle
