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Subject: Re: WCCC participants and a board and pieces.

Author: Dieter Buerssner

Date: 18:07:47 06/20/02

Go up one level in this thread


On June 20, 2002 at 17:46:54, Robert Hyatt wrote:

>On June 20, 2002 at 13:14:15, Dieter Buerssner wrote:
>
>>On June 20, 2002 at 11:33:30, Robert Hyatt wrote:
>>
>>>On June 20, 2002 at 11:10:52, Louis Fagliano wrote:
>>>>Besides, in a power failure don't most programs save the game?  I know Rebel
>>>>does because in one game someone accidently kicked the plug of my surge
>>>>protector out of the socket and when I powered up and fired up Rebel, there was
>>>>the game and score still there.  I don't know if other programs do this because
>>>>I don't want to power off my computer by unplugging it.
>>>>
>>>
>>>
>>>
>>>Maybe or maybe not.  If power fails while you are writing to the disk, that
>>>file is going to be corrupted.  Then you are screwed with no backup...
>>
>>On could get it practically fail safe, by having 2 different files. After any
>>move, alternate overwriting one of those with the current
>>move-list/PGN/whatever. The 10 msec or so overhead for each move would be
>>totally unsignificant for typical time controls in
>>"human-operates-on-a-real-board-tournaments".
>>
>>Of course, one could argue, that a power failure may corrupt your whole HD, but
>>then probably typing in the moves manually is the least problem ...
>>
>>BTW, concerning UPS. The operator of Yace at the Leiden 2002 tournament told me,
>>that in the game Isichess-Yace sombody walked over the cables and umplugged
>>them. I guess, something like this can hardly be avoided in general.
>>
>>Regards,
>>Dieter
>
>I don't see a foolproof way to avoid the problem.  I have had power
>disconnected, breakers thrown due to overload.  Extension cords pulled out
>on the remove end.  Etc.

I don't know, what you mean by "the problem". Do you mean that the move-list
saved to a file is corrupted (even when you use 2 alternating files)? Or do you
mean the problem, that it is practically impossible to avoid a power failure?

Dietet



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