Re: DDM experiences

No improvements, other than the fact that the hardware is much faster
today.

DDM is basically slow.  If you want to validate data from another system on
a random basis interactively (so the gating factor is human delay), DDM is
fine.  If you want to age your accounts receivable in a batch program where
the A/R detail file is "Update Primary" (from an RPG perspective), DDM is
too slow to be practical.

We had a situation last weekend where we filled up all of the DASD on one
system with only a QIC tape drive with a very large dump (over 100,000
pages), so we created a source physical file on another system (where we
have fast tape drives), and a DDM of it in the filled system, and then did
CPYSPLF in batch.  It took over a day.

Al

Al Barsa, Jr.
Barsa Consulting Group, LLC

400>390

914-251-1234
914-251-9406 fax

http://www.barsaconsulting.com
http://www.taatool.com






                      Karen.Eder@idealind
                      ustries.com                To:       
midrange-l@midrange.com
                      Sent by:                   cc:
                      midrange-l-admin@mi        Subject:  DDM experiences
                      drange.com


                      06/06/2002 02:59 PM
                      Please respond to
                      midrange-l







I am looking for some feedback and/or experiences with DDM files.  My
previous experience using them was so-so and at least 8 years ago or so.
Coworkers here have mixed opinions so I thought I'd see what this group had
to say.  If any of you can offer any feedback, I sure would appreciate it.

In case there are any recent major enhancements in this area, currently our
systems are all running at 4.5; but if 5.1 had great improvements in this
area, it could be considered.

Thanks, Karen


_______________________________________________
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
To post a message email: MIDRANGE-L@midrange.com
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/cgi-bin/listinfo/midrange-l
or email: MIDRANGE-L-request@midrange.com
Before posting, please take a moment to review the archives
at http://archive.midrange.com/midrange-l.