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

Author: Robert Hyatt

Date: 06:05:56 06/21/02

Go up one level in this thread


On June 20, 2002 at 21:07:47, Dieter Buerssner wrote:

>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


No.. I meant the problem of losing power, or the net connection, or both.

IE I have seen a glass of water dumped into a computer by accident, etc.



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