Mark Zelden wrote:
On Thu, 23 Feb 2006 11:46:26 +0100, R.S. <[EMAIL PROTECTED]>
wrote:
<snip>
1) Keep uneducated people (even fellow sysprogs) from allocating junk on
the sysres (set). It gets "lost" when cloning (not cataloged to
the IPL volume) Well.. not really lost until we re-clone over
the volume that it was cataloged to, then it is lost.
<snip>
IMHO first reason is not reasonable. Uneducated people shouldn't be able
to allocate anything out of SMS. As additional resort of protection
mount attributes (STORAGE, PRIVATE, PUBLIC) and IGGPRE00 can be used.
How large is your shop? Have you ever worked in a very large one? The
CICS, DB2, MQ, WAS, ISV product installers etc. all have valid reasons
for allocating non-sms controlled libraries so you can't lock them out
completely (you are also assuming the shop is close to 100% SMS and
most shops I've been at still don't SMS control system software data
sets).
C'mon! Do they also have valid reasons i.e. to modify SYS1.NUCLEUS ? (at
least CICS folks do have)
IMHO large shop requires better organization. One of the means, except
written procedures, in-house standards (we have it) could be an exit.
> At some shops (including my current one) the people I've
mentioned are in different locations as well which can also lead to the
"mistakes" - even from very experienced sysprogs who just may not be
familiar with the standards for the environment they are working in.
I allow "unexperienced" folks to work on sandbox system only. That
includes ISV installer, although, usually they install the software only
for the first time. On production they *repeat* the jobs and procedures,
always in "4 eyes 2 hands" mode (one is working, the second is watching,
one of them is EXPERIENCED insider).
Caution: I don't suggest anything about your shop.
Anwyay, we don't do this here (and I consider us a very large shop),
but you asked why one might want to and I gave a couple of reasons why.
You don't have to agree nor ever implement any exits to do it if you
don't want to. :-)
I implemented IGGPRE00, but I don't remember last time when it denied
allocation.
BTW: You don't use R/O volumes, so it is possible to live without it,
even in large shop ? ;-)
Regards
--
Radoslaw Skorupka
Lodz, Poland
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