Louis T. Chmielewski writes:
>Greetings all,
> I'd like to find out more info about 'deleted' files on our pcs and vaxs.
>For instance, how is a 'deleted' file ultimately deleted? What process is
>involved to truly delete a file from magnetic media? We might be looking
>to purchase some s/w product that could 'scrub' our drives, getting rid of
>'deleted' files, but I'd like to learn more about the process first.
By Vax do you mean VMS? If I remember rightly (it's been a long time), VMS
actually writes zero bytes over a file when it is deleted. Before this was
implemented it used to be possible to "fish" files back out of the filesystem.
So I expect there is no un-delete facility, unless the zero-write behaviour
is an option which can be turned off.
-Matthew
--
+--------------------------------------------------------------------------+
| Matthew Donaldson http://www.gisca.adelaide.edu.au/~mdonalds |
| National Key Centre for Email: matthew @
gisca .
adelaide .
edu .
au |
| Social Applications of GIS Phone: +61 8 830 33976 _ |
| University of Adelaide Fax: +61 8 830 33498 John / \/ |
| South Australia 5005 3:16 \_/\ |
+--------------------------------------------------------------------------+
References:
|
|
