On Tue, 14 Aug 2007 14:26:18 -0400, Veilleux, Jon L <[EMAIL PROTECTED]>
wrote:

>The last formula I saw was
>
>total = 100 + (16 * totextents) + (numds - 1)
>if total > 2041 then the Linklist is too large and will be truncated
>Where ttextents is the total number of extents for all linklist
>libraries and numds is the number of libraries in the linklist.
>
>

That is *very* old.  It changed in DFSMS/MVS 1.3. 

(32) + (16n) + (k-1)
n = the number of DASD extents (PDSE counts as 1) 
k = the number of data set in the link list 

The result of the algorithm could not exceed 2040. 

If running DFSMS/MVS 1.3 or later, then the only restriction is that the
total number of extents must not exceed 255.  PDSE still counts as 1.

Mark
--
Mark Zelden
Sr. Software and Systems Architect - z/OS Team Lead
Zurich North America / Farmers Insurance Group - ZFUS G-ITO
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Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html

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