Re: Another reason to hate PDSE's
- From: cfmpublic@xxxxxxxxxxxxxxx (Clark Morris)
- Date: 27 Jul 2010 19:03:57 -0700
On 27 Jul 2010 13:18:29 -0700, in bit.listserv.ibm-main you wrote:
-----------------------------------------<snip>------------------------------------
Barbara Nitz wrote:
No, it's 64K tracks. It is the same "per volume" limit as many other
data set types (non-extended). But PDSes and PDSEs are also limited
to a single volume.
I am surprised. I did not know about *those* limitations. And most
certainly, since they are documented, there will be no way to change
things.
But: I seem to remember that PDSEs were touted as the only ones
making sense on an EAV, because of the 'extented' part of the name,
and that they could get bigger (but maybe I misunderstood). Not that
I would encourage use of such a large volume, as it is much too slow,
and I still haven't opened an ETR to address 90s (or more) until ISPF
3.4 gives you the directory view. (Might end up on an ISPF queue,
which would require me to open a complaint due to incompetence.)
PDSEs have only one advantage: They don't need to get compressed. The
rest us a huge amount of disadvantages.
Regards, Barbara
Well, they do have at least one other advantage: they can store
program objects, which allows entry points with long, case-sensitive
names, which is sometimes handy.
----------------------------------------<unsnip>---------------------------------------
Steve, I'm incredibly happy you said "SOMETIMES", because I've lived
with 8-character PDS member names for 40+ years and never could think of
a really severe need for the variations you suggest. :-)
Given the obscure program names, proc names and member names we have
due to the 8 character limitation, I for one would have liked names to
be at least 16 characters. In fact I still would and the 8 byte
limitation must seem weird and out of date to someone coming from a
UNIX or Windows environment.
Clark Morris
Rick
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