Messages in this thread |  | | Date | Thu, 5 Oct 2000 22:00:58 +0000 | From | Alain Williams <> | Subject | Tux 2 patents |
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Hi,
I remember when at the University of Cambridge (in England) about 25 years ago seeing some work then about the Jackdaw (or was is Jackard) database system that had the great feature of being immune to OS crashes, it used a phased update mechanism where new blocks were written to disk and the last block written was the one that contained the switched pointer, until this last block had been written the changes had not been made. Since the write of a disk block was atomic the database would never be corrupt.
If someone wants I think that I still have a (paper) copy of the report describing this. I can send/fax a copy if wanted.
I don't subscribe to this list, so please reply direct if someone wants it.
(Please don't request a copy just out of curiosity since I don't want to have to post/fax copies that won't help resolve this case by showing prior art.)
Cheers
-- Alain Williams - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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