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Subject: Re: Tablebase Sizes?

Author: Dann Corbit

Date: 00:01:05 12/05/03

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On December 05, 2003 at 00:18:56, Ed Panek wrote:

>On December 04, 2003 at 21:18:40, Anson T J wrote:
>
>>I have a few questions about tablebases, I currently have all the 3,4 and 5
>>piece ones. I'm thinking if I should get the 6 men ones too.
>>
>>1. Whats the total size of 2,3,4,5 and 6 men tablebases currently available for
>>download?
>>
>>2. How much Tablebase cache is required to use 6 men tablebases? (Will I need
>>more than 512 MB ram total?)
>>
>>3. Which chessbase engines support 6+ men tablebases?
>>
>>thx in advance.
>
>Just for fun I thought I would mention this...
>
>Last week our company was at RSNA (Radiology show) in Chicago where Fujitsu is
>now furthering the medical field supplying large scale media storage devices
>with terrabytes of nearly instantaneous file retrieval and archival mostly for
>PACS.(Imagine Large Hospitals like the Mayo Clinic with 20-30 workstation
>storing 20 MB DICOM Images all day)  Using MO disks and also some Bluelight
>DVD-R technology Fijitsu and also Dell demoed their systems for us. With 5-20 GB
>of space available per media and jukeboxes full of 100-200 disks, they have >
>1.5 terrabyte of storage or more. Mechanically the retrival system can access
>almost any drive in less than 2 seconds. (That is retrieve the media and begin
>reading.) I couldnt get the exact tranfer rate of the devices but I would
>suspect they would be similar to SCSI devices normally found in the server
>industry (Asynchronous 5 MB/s, Synchronous 10 MB/s non-sustained)
>
>Typical cost for a system like this is $100K / Terrabyte  .... out of range for
>most people and not including a service contract in case the device breaks (
>which it looks like it would)
>
>Unfortunatly even this technology would be not suited for retrieving 100-200 MB
>tablebase files in very quick real time conditions. It was engineered for 10-20
>MB files in short bursts.
>
>Maybe in 3-4 years we will have reasonable ability to actually contain all the 6
>man TB's and even more:-)

My Brother-in-law's father has a patent for technology that will store a
terrabyte of data on a spot the size of your little finger nail.  He never got
any computer companies interested in it, but now a medical company has funded
research on it.

It uses the same idea as a radiation dosimeter crystal.  Except that they use
ionizing radiation to write to the crystal on purpose.




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