|Principle of the method
||Destroying the magnetic patterns that record the data.
||Destroy the data by writing data patterns to the storage devices multiple times.
- Magnetic hard disks only.
- Drives to be disposed of are not functioning.
- Any kind connection (SATA, PATA, SCSI…etc.).
- Both magnetic and non-magnetic (e.g. SSD hard disks) type of data storage.
- Recycle use of hard disks
|NOT suitable for
- Drives larger than 500GB due to the existing equipment’s limit.
- Non-magnetic storage devices such as SSD hard disk and flash drives
- Connection type other than SATA and PATA, that is, SCSI drives are not support
- Drives already found malfunctioning.
||No. Hard disks once erased by this method CANNOT be reused since the factory setting of the hard disk is also destroyed in the process.
||Yes. Storage devices normally can be reused as this method just overwrites the drives with randomized data pattern.
||Very short required and does not depend on the hard disks. Normally less than 10 seconds per disk. The time is only required in charging up the equipment.
||Very long time required but depends on the size and speed of the storage device. (e.g. 500GB magnetic drive will require more than 3 hours to complete).
|Where to obtain the service?
||A degausser can be loaned to department from CSC Workshop in AC1-Y25118 (see below on how to obtain the service).
||One wiper machine can be loaned to department from CSC Workshop in AC1-Y2518 (see below on how to obtain the service).
Alternatively, staff can self-help themselves and use another wiper machine located in CSC Teaching Studio Area (see below on how to obtain the service).