Typically this is called "Sanitization" and could be done as part of
an evacuation of data from the disk in preparation for removal.
You would want to specify the patterns to write and the number of
passes.
-- mark
Brian Kolaci wrote:
Hi,
I was discussing the common practice of disk eradication used by many
firms for security. I was thinking this may be a useful feature of
ZFS to have an option to eradicate data as its removed, meaning after
the last reference/snapshot is done and a block is freed, then write
the eradication patterns back to the removed blocks.
By any chance, has this been discussed or considered before?
Thanks,
Brian
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--
<http://www.sun.com> * Mark A. Carlson *
Sr. Architect
*Systems Group*
Phone x69559 / 303-223-6139
Email mark.carl...@sun.com
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