On Sat, 11 Nov 2023 10:07:14 -0500 Steve Smith <[email protected]> wrote:

:>Sure it's possible... BSAM POINT should work fine in general, and BDAM is
:>even more powerful.  However, the previous mention about short blocks is
:>important; that will foul up block calculations, so you'd probably want to
:>make it FBS, and make sure there are no short blocks.  Presuming your
:>application knows what record it wants to start with, you'll have to
:>calculate the TTR and block offset from that.  And of course, by using
:>BxAM, you have to do your own de-blocking, and I/O overlap.

Yes, it would have to be FBS. The block address can be calculated and a BDAM
direct read could retrieve the block.

However this is the wrong organization for the file if that is your need. No
matter how hard you try, a hammer is a poor tool to put in a screw.

--
Binyamin Dissen <[email protected]>
http://www.dissensoftware.com

Director, Dissen Software, Bar & Grill - Israel

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