Comments on: DDM files on IBM i

By: is questions

is questions — Thu, 22 Sep 2011 13:22:51 +0000

Sorry if I add another question, can you DDM from a V5R3 to a V6R1 machine?

By: murrayinfosys

murrayinfosys — Sat, 15 May 2010 01:30:54 +0000

OOPS!
Forgot to add that the line speed is the biggest problem in this method!

By: murrayinfosys

murrayinfosys — Sat, 15 May 2010 01:27:42 +0000

Ten2008,
We use DDM files to refresh the Development environment from the Production environment all the time.
You create a DDM file on the Development machine that POINTS to the production machine. Then you copy the DDM file from the Development machine to a location on the Development machine where you want to store the Production data. Hummm … sounds complicated. I’ve got to figure out a better description.

By: tomliotta

tomliotta — Sat, 15 May 2010 00:41:57 +0000

I suppose DDM could be used to transfer files, but it doesn’t seem appropriate. DDM is more useful for transferring records than entire files.

You usually use DDM to create an endpoint on one system that connects to a PF on another system. Using RPG, for example, you then OPEN the DDM file and read/write the records just like you would if the PF was on your local system.

CPYF should work fine either to or from a DDM file. In that sense, you can “transfer” a file from the remote system to your local system by issuing CPYF with FROMFILE() as your DDM file and TOFILE() being a new file on your local system. You also would specify CRTFILE(*YES). That is like doing a FTP GET.

Tom