Files Are Hard - via @sadisticsystems https://danluu.com/file-consistency/ …
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From my understanding, that works as long as you assume the writing of the hash always works correctly, else an incorrect hash could invalidate correct data
hmmm, yeah true. I think the gist is that the data needs to be hashed twice. Once before write, and once after write to check if they match. If not, you trace back to what went wrong - and never ACK the request.
