Darren Reed wrote:
Darren J Moffat wrote:

...
Of course. I didn't mention it because I thought it was obvious but this would NOT break the COW or the transactional integrity of ZFS.

One of the possible ways that the "to be bleached" blocks are dealt with in the face of a crash is just like everything else - they would be in the ZFS Intent Log as "things to do".


Do NIST and other specifications that come into play here dictate
what should be done in these and other situations?

Not that I have found.

Do they say how this feature must be provided or in which situations
it is required to be covered in order to meet their criteria?

The cover what should be done to the data now how it should be implemented.

Or do they just document overwrite patterns, depending on the
security of the information?

More like that and they document what type of physical destruction or other operations need to be done such as degausing etc.


--
Darren J Moffat
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