> -----Original Message-----
> From: IBM Mainframe Discussion List 
> [mailto:[EMAIL PROTECTED] On Behalf Of Bruce Black
> Sent: Friday, December 09, 2005 10:28 AM
> To: [email protected]
> Subject: Re: 3390-81
> 
> 

<snip>

> 
> In the currently define disk CCW architecture, the cylinder 
> number is an 
> unsigned halfword, so IBM can't increase the disk size any 
> more without 
> introducing a new architecture and changing a lot of control blocks 
> which contain cylinder numbers. This will require even more extensive 
> changes on everyone's part, but we understand that IBM is 
> still thinking 
> about doing something along this line.
> 
> -- 
> Bruce A. Black
> Senior Software Developer for FDR

Gee, if so, I would really, really, really hope that they'd dump ECKD
and go with FBA, like the rest of the known universe.

--
John McKown
Senior Systems Programmer
UICI Insurance Center
Information Technology

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