Secure data destruction

In the case of scrapped or decommissioned components, it is important to reliably destroy the data. Multiple overwriting of the data carrier is a suitable and reliable method.

For the secure destruction of data on discarded or decommissioned components, it is recommended to overwrite the data carriers. To do this, boot the device from the TwinCAT/BSD installer stick. If the device does not automatically boot from the stick, press F7 during the boot process to select the USB flash drive. In the menu of the installer stick, the TwinCAT/BSD shell of the installer stick can now be accessed via the menu item "Shell". With

ls /dev

you can display the device nodes found or the data carriers found. Data carriers are usually indicated with ada0 or da0, where "ada" stands for Sata data carriers and "da" for SCSI data carriers. CFast cards are thus listed as "ada", USB flash drives as "da".

If the data on the CFast card of the device is to be irretrievably destroyed, proceed as follows to overwrite the data carrier with zeros:

dd if=/dev/null of=/dev/ada0 bs=100m

Physical destruction

If you don't wish to overwrite a hard disk or cannot do so due to a defect, you should physically damage or destroy the hard disk.