On 09/01/2020 16:45, David Wright wrote:
No, don't mix degaussers and disks. If you want to reuse them, they're likely too damaged. If you're concerned about data recovery, then they're unlikely to be erased enough to prevent it.
<https://en.wikipedia.org/wiki/Degaussing>:"For certain forms of computer data storage, however, such as modern hard disk drives and some tape drives, degaussing renders the magnetic media completely unusable and damages the storage system. This is due to the devices having an infinitely variable read/write head positioning mechanism which relies on special servo control data (e.g. Gray Code) that is meant to be permanently recorded onto the magnetic media. This servo data is written onto the media a single time at the factory using special-purpose servo writing hardware."
-- Ben Caradoc-Davies <ben@transient.nz> Director Transient Software Limited <https://transient.nz/> New Zealand