{{tag>category:"Network Product" author:"Matthew Crozier" author:"Bryan Shumsky" author:"dsig@sigafoos.org"}}

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==== UD 4 (Network Product) ====
=== At 31 JUL 2007 07:54:24PM Matthew Crozier wrote: ===
 
 
<QUOTE>
[i]The Universal Driver 4.0 provides backward compatibility with all previous versions of Linear Hash files which is not available with the Universal Driver 3.0[/i]



I've been told that this means that a file created using the UD 4 network driver in a development system can be deployed to a customer system that uses the All Networks 2.1 driver with the Linear Hash service 2.1.  Is this correct??  Presumably such a file will support 'files larger than 4 gigabytes', but how will the 2.1 driver be able to open it?



Cheers, M@

[url=http://www.vernonsystems.com][img]http://www.vernonsystems.com/images/logo_main_ani.gif[/img][/url]
</QUOTE>
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=== At 01 AUG 2007 01:25PM Bryan Shumsky wrote:  ===

<QUOTE>Hi, Matthew.



Yes, the UD4 product will allow you to create tables that can be accessed by 2.1 driver users, _until_ you reach the 4GB limit.  At that time, the internal structure of the table is automatically converted into the appropriate format for handling such large amounts of data, and the table is no longer accessible from 2.1.



Hope that helps,



- Bryan Shumsky

Revelation Software

</QUOTE>

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=== At 01 AUG 2007 06:58PM Matthew Crozier wrote:  ===

<QUOTE>Thanks Bryan - nice solution! :)



Cheers M@

[url=http://www.vernonsystems.com][img]http://www.vernonsystems.com/images/logo_main_ani.gif[/img][/url]

</QUOTE>

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=== At 01 AUG 2007 10:04PM dsig@sigafoos.org wrote:  ===

<QUOTE>This your solution .. to cause no harm with a product.  What's up with that?



Way to go man .. 

</QUOTE>


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