On Wed, 24 Jun 2009 15:37:22 -0400 Alan Altmark said:
>One of the things we do in IBM that I do like is that a lot of
>product-related commands (e.g. cc, ditto) are simply execs (some compiled
>to MODULEs) that VMLINK to the appropriate disk to run the "real" version
>of the program.

I've been doing this since VM/SP3 (before there was a VMLINK EXEC).

Every software package and every release of that package has its
own mini-disk.  If something is found buggy in the new release I
can quickly change the linking EXEC to link to the previous
release mini-disk.

It's also nice to be able to switch back and forth with the
releases to compare results.

And it makes it easy to install a new release of VM.  None of my
EXECs are on what I consider to be IBM owned disks like the Y/S
disk.

/Fran Hensler at Slippery Rock University of Pennsylvania USA for 46 years
    mailto:f...@zvm.sru.edu  http://zvm.sru.edu/~fjh  +1.724.738.2153
              "Yes, Virginia, there is a Slippery Rock"
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